SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549


                                    FORM 10-Q

(Mark One)

          [X]        QUARTERLY REPORT PURSUANT TO SECTION 13
                 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended March 31, 1999

          [ ]       TRANSITION REPORT PURSUANT TO SECTION 13
                 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

         For the transition period from ______________ to ______________

                             Commission File Number
                                     0-16439

                      FAIR, ISAAC AND COMPANY, INCORPORATED
             (Exact name of registrant as specified in its charter)

           DELAWARE                                               94-1499887
(State or other jurisdiction of                               (I.R.S. Employer
 incorporation or organization)                              Identification No.)

              120 North Redwood Drive, San Rafael, California   94903
                 (Address of principal executive offices)     (Zip Code)

       Registrant's telephone number, including area code: (415) 472-2211

                                ---------------

     Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes x No ____.

     The  number  of  shares  of  Common  Stock,  $0.01  par  value  per  share,
outstanding on May 6, 1999, was 14,063,062.






                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----
PART I.  FINANCIAL INFORMATION

ITEM 1.  Financial Statements ...............................................  3

ITEM 2.  Management's Discussion and Analysis of Financial
           Condition and Results of Operations ..............................  9

ITEM 3.  Quantitative and Qualitative Disclosures About Market Risk ......... 17

PART II. OTHER INFORMATION

ITEM 6.  Exhibits and Reports on Form 8-K ................................... 17

SIGNATURES .................................................................. 18

EXHIBIT INDEX ............................................................... 19

                                       2





                                                   PART I - FINANCIAL INFORMATION
                                                    ITEM 1. Financial Statements.
                                                FAIR, ISAAC AND COMPANY, INCORPORATED
                                                     CONSOLIDATED BALANCE SHEETS
                                                March 31, 1999 and September 30, 1998

                                                       (dollars in thousands)

                                                             (Unaudited)


                                                                                                     March 31,         September 30,
                                                                                                       1999                 1998
                                                                                                     ---------            ---------
                                                                                                                    
ASSETS
Current assets:
     Cash and cash equivalents                                                                       $  11,519            $  14,242
     Marketable securities                                                                              25,915               18,283
     Accounts receivable, net                                                                           39,495               39,028
     Unbilled work in progress                                                                          24,579               22,004
     Prepaid expenses and other current assets                                                           6,417                4,040
     Deferred income taxes                                                                               5,193                5,016
                                                                                                     ---------            ---------
       Total current assets                                                                            113,118              102,613

Marketable securities                                                                                   28,113               24,368
Property and equipment, net                                                                             36,971               36,893
Intangibles, net                                                                                         9,615               10,458
Deferred income taxes                                                                                    6,398                6,398
Other assets                                                                                             8,866                8,884
                                                                                                     ---------            ---------
                                                                                                     $ 203,081            $ 189,614
                                                                                                     =========            =========

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
     Accounts payable and other accrued liabilities                                                  $  17,788            $  17,418
     Accrued compensation and employee benefits                                                         19,930               22,065
     Billings in excess of earned revenues                                                               7,379                7,862
     Capital lease obligations                                                                             424                  416
                                                                                                     ---------            ---------
       Total current liabilities                                                                        45,521               47,761

Other liabilities                                                                                        7,814                7,613
Capital lease obligations                                                                                  579                  789
                                                                                                     ---------            ---------
       Total liabilities                                                                                53,914               56,163
                                                                                                     ---------            ---------

Stockholders' equity:
     Preferred stock                                                                                      --                   --
     Common stock                                                                                          142                  140
     Paid in capital in excess of par value                                                             36,981               32,454
     Retained earnings                                                                                 114,624              100,678
     Less treasury stock (70,854 shares at cost at 3/31/99; 9,787 at
       9/30/98)                                                                                         (2,624)                (351)
     Accumulated other comprehensive income                                                                 44                  530
                                                                                                     ---------            ---------
       Total stockholders' equity                                                                      149,167              133,451
                                                                                                     ---------            ---------
                                                                                                     $ 203,081            $ 189,614
                                                                                                     =========            =========

<FN>
See accompanying notes to the consolidated financial statements.
</FN>


                                                                 3





                                                FAIR, ISAAC AND COMPANY, INCORPORATED

                                     CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME

                               For the six month and three month periods ended March 31, 1999 and 1998
                                                (in thousands, except per share data)
                                                             (Unaudited)


                                                               Six Months Ended March 31,            Three Months Ended March 31,
                                                            --------------------------------       --------------------------------
                                                                1999                1998               1999                1998
                                                            ------------        ------------       ------------        ------------
                                                                                                           
Revenues                                                    $    136,851        $    113,166       $     68,874        $     59,655

Costs and expenses:
    Cost of revenues                                              52,012              41,071             26,941              21,206
    Sales and marketing                                           20,317              17,890             10,038               9,143
    Research and development                                      15,560              13,980              7,816               7,382
    General and administrative                                    25,062              24,115             12,065              12,717
    Amortization of intangibles                                      842                 576                421                 255
                                                            ------------        ------------       ------------        ------------
       Total costs and expenses                                  113,793              97,632             57,281              50,703
                                                            ------------        ------------       ------------        ------------

Income from operations                                            23,058              15,534             11,593               8,952
Other income, net                                                  1,962                 539              1,276                 510
                                                            ------------        ------------       ------------        ------------
Income before income taxes                                        25,020              16,073             12,869               9,462
Provision for income taxes                                        10,508               6,618              5,405               3,974
                                                            ------------        ------------       ------------        ------------
Net income                                                  $     14,512        $      9,455       $      7,464        $      5,488
                                                            ============        ============       ============        ============

Net income                                                  $     14,512        $      9,455       $      7,464        $      5,488
 Other comprehensive income, net of tax:
    Unrealized gains (losses) on securities:
       Unrealized holding gains (losses)
          arising during period                                       15                  81               (100)                 66
       Less: reclassification adjustment                            (281)               --                 (281)               --
                                                            ------------        ------------       ------------        ------------
              Net unrealized gains (losses)                         (266)                 81               (381)                 66
    Foreign currency translation adjustments                        (221)                 30               (242)                (14)
                                                            ------------        ------------       ------------        ------------
Other comprehensive income                                          (487)                111               (623)                 52
                                                            ------------        ------------       ------------        ------------
Comprehensive income                                        $     14,025        $      9,566       $      6,841        $      5,540
                                                            ============        ============       ============        ============


Earnings per share:
    Diluted                                                 $       1.00        $        .66       $        .51        $        .38
                                                            ============        ============       ============        ============
    Basic                                                   $       1.03        $        .70       $        .53        $        .40
                                                            ============        ============       ============        ============

Shares used in computing earnings per share:
    Diluted                                                   14,515,000          14,310,000         14,578,000          14,304,000
                                                            ------------        ------------       ------------        ------------
    Basic                                                     14,109,000          13,596,000         14,177,000          13,707,000
                                                            ============        ============       ============        ============

<FN>
See accompanying notes to the consolidated financial statements.
</FN>


                                                                 4





                                                FAIR, ISAAC AND COMPANY, INCORPORATED

                                                CONSOLIDATED STATEMENTS OF CASH FLOWS
                                          For the six months ended March 31, 1999 and 1998
                                                       (dollars in thousands)
                                                             (Unaudited)


                                                                                                        Six Months Ended March 31,
                                                                                                       ----------------------------
                                                                                                         1999                1998
                                                                                                       --------            --------
                                                                                                                     
Cash flows from operating activities:
     Net income                                                                                        $ 14,512            $  9,455
     Adjustments to reconcile net income to
       cash provided by operating activities:
         Depreciation and amortization                                                                    8,385               7,191
         Deferred compensation                                                                              131                 324
         Gain on sale of marketable securities                                                             (474)               (165)
         Equity gain in investments                                                                         (47)                (30)
         Deferred income taxes                                                                             --                   149
         Other                                                                                               86                --
         Changes in operating assets and liabilities:
           Decrease (increase) in accounts receivable                                                      (612)                781
           Increase in unbilled work in progress                                                         (2,576)             (2,966)
           Increase in prepaid expenses and other assets                                                 (2,376)               (966)
           Decrease in other assets                                                                          19                 149
           Increase in accounts payable and other accrued liabilities                                     1,450               4,009
           Decrease in accrued compensation and employee benefits                                          (671)             (2,212)
           Increase (decrease) in billings in excess of earned revenues                                    (483)                647
           Decrease in other liabilities                                                                 (1,440)               (545)
                                                                                                       --------            --------
              Net cash provided by operating activities                                                  15,904              15,821
                                                                                                       --------            --------

Cash flows from investing activities:
     Purchases of property and equipment                                                                 (6,083)            (11,205)
     Payments for acquisition of subsidiary                                                                --                (3,140)
     Purchases of marketable securities                                                                 (61,006)               (788)
     Proceeds from sale of marketable securities                                                         35,634                --
     Proceeds from maturities of marketable securities                                                   14,015               3,010
                                                                                                       --------            --------
              Net cash used in investing activities                                                     (17,440)            (12,123)
                                                                                                       --------            --------

Cash flows from financing activities:
     Principal payments of capital lease obligations                                                       (203)               (190)
     Proceeds from the exercise of stock options and issuance of stock                                    1,900               1,028
     Dividends paid                                                                                        (565)               (545)
     Repurchase of company stock                                                                         (2,319)                (20)
                                                                                                       --------            --------
              Net cash provided by (used in) financing activities                                        (1,187)                273
                                                                                                       --------            --------

Increase (decrease) in cash and cash equivalents                                                         (2,723)              3,971
Cash and cash equivalents, beginning of period                                                           14,242              13,209
                                                                                                       --------            --------
Cash and cash equivalents, end of period                                                               $ 11,519            $ 17,180
                                                                                                       ========            ========

<FN>
See accompanying notes to the consolidated financial statements.
</FN>


                                                                 5




                      FAIR, ISAAC AND COMPANY, INCORPORATED
                   Notes to Consolidated Financial Statements

Note 1 General

         In  management's  opinion,  the  accompanying   unaudited  consolidated
financial statements for Fair, Isaac & Company, Incorporated (the "Company") for
the six and three  months  ended March 31,  1999 and 1998 have been  prepared in
accordance with generally accepted  accounting  principles for interim financial
statements  and include all  adjustments  (consisting  only of normal  recurring
accruals) that the Company  considers  necessary for a fair  presentation of its
financial  position,  results of  operations,  and cash flows for such  periods.
However,  the  accompanying  financial  statements  do  not  contain  all of the
information and footnotes required by generally accepted  accounting  principles
for complete  financial  statements.  All such  financial  statements  presented
herein are unaudited.  The September 30, 1998 balance sheet,  however,  has been
derived  from audited  financial  statements.  This Report and the  accompanying
financial  statements  should be read in connection  with the Company's  audited
financial  statements  and notes thereto  presented in its Annual Report on Form
10-K for the  fiscal  year  ended  September  30,  1998.  Footnotes  that  would
substantially  duplicate  the  disclosures  in the Company's  audited  financial
statements for the fiscal year ended  September 30, 1998,  contained in the 1998
Form 10-K, have been omitted.  The interim  financial  information  contained in
this Report is not necessarily  indicative of the results to be expected for any
other interim period or for the full fiscal year ending September 30, 1999.

Note 2 Earnings Per Share


         The following reconciles the numerators and denominators of diluted and
basic earnings per share (EPS):

                                                                           Six months ended March 31,   Three months ended March 31,
(dollars in thousands, except per share data)                                1999            1998            1999            1998
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                               
Numerator - Net income                                                     $ 14,512        $  9,455        $  7,464        $  5,488
                                                                           --------        --------        --------        --------

Denominator - Shares:
     Diluted weighted-average shares and assumed
       conversions of stock options                                          14,515          14,310          14,578          14,304
     Effect of dilutive securities - employee stock options                    (406)           (714)           (401)           (597)
                                                                           --------        --------        --------        --------
     Basic weighted-average shares                                           14,109          13,596          14,177          13,707
                                                                           --------        --------        --------        --------

Earnings per share:
     Diluted                                                               $   1.00        $    .66        $    .51        $    .38
                                                                           ========        ========        ========        ========
     Basic                                                                 $   1.03        $    .70        $    .53        $    .40
                                                                           ========        ========        ========        ========



         Total  options  outstanding  included  131,000 and  483,000  options to
purchase  shares of common  stock at prices  ranging  from  $41.88 to $49.44 and
$38.25 to $45.63 at March 31, 1999 and 1998,  respectively.  These  options were
not included in the computation of diluted earnings per share for the six months
ended March 31, 1999 and 1998  because the  exercise  price for such options was
greater  than the average  market  price of the common  stock for the six months
ended March 31, 1999 and 1998.

         Total  options  outstanding  included  120,000 and  483,000  options to
purchase  shares of common  stock at prices  ranging  from  $44.69 to $49.44 and
$38.25 to $45.63 at March 31, 1999 and 1998,  respectively.  These  options were

                                       6




not  included in the  computation  of diluted  earnings  per share for the three
months ended March 31, 1999 and 1998 because the exercise price for such options
was greater  than the  average  market  price of the common  stock for the three
months ended March 31, 1999 and 1998.

Note 3 Cash Flow Statement

         Supplemental disclosure of cash flow information:


                                                             Six months ended
                                                                  March 31,
(dollars in thousands)                                        1999        1998
- --------------------------------------------------------------------------------
Income tax payments                                         $14,786      $ 7,282
Interest paid                                               $    80      $    64

Non-cash investing and financing activities:
     Issuance of common stock to ESOP                       $ 1,455      $ 1,323
     Tax benefit of stock options                           $ 1,080      $   474
     Vesting of restricted stock                            $     8      $    84
     Purchase of CRMA with common stock                     $  --        $   111
     Capital lease obligations                              $ 1,641      $    40


Note 4 Reclassifications

         Certain prior period balances have been  reclassified to conform to the
current period presentation.

Note 5 Accounting Pronouncements

         During the first  quarter  of fiscal  year 1999,  the  Company  adopted
Statement of Position No. 97-2 ("SOP 97-2"),  "Software Revenue Recognition," as
amended by Statement of Position No. 98-4  "Deferral of the Effective  Date of a
Provision of SOP 97-2, Software Revenue Recognition." SOP 97-2 provides guidance
for  software  revenue  recognition.  The  adoption  of SOP  97-2 did not have a
significant impact on the Company's financial position or results of operations.

         In December 1998, the AICPA issued Statement of Position No. 98-9 ("SOP
98-9"),  "Modifications of SOP 97-2, Software Revenue Recognition,  with Respect
to Certain  Transactions."  SOP 98-9 requires  recognition  of revenue using the
"residual  method" in a  multiple-element  software  arrangement when fair value
does not exist for one or more of the  delivered  elements  in the  arrangement.
Under the "residual method," the total fair value of the undelivered elements is
deferred and  recognized in accordance  with SOP 97-2. SOP 98-9 also extends the
deferral  of the  application  of SOP  97-2 to  certain  other  multiple-element
software  arrangements  through the Company's  fiscal year ending  September 30,
2000.  The Company's  management is currently  evaluating  the provisions of SOP
98-9 and has not yet determined  what impact,  if any, SOP 98-9 will have on the
Company's  financial  position,  results of operations or cash flows.  Beginning
with fiscal year 2000, management intends to conform its consolidated  financial
statements to this pronouncement.

         In June 1997, the FASB issued SFAS No. 131, "Disclosures about Segments
of an Enterprise and Related  Information." This statement establishes standards
for publicly held entities to follow in reporting  information  about  operating
segments in annual financial  statements and requires that those entities report
selected  information about operating segments in interim financial  statements.
This statement also establishes standards for related disclosures about products
and services,  geographic areas and major customers. This statement is effective
for annual financial

                                       7




statements issued for fiscal years beginning after December 15, 1997.  Beginning
with fiscal  year 1999,  management  intends to conform its annual  consolidated
financial statements to this pronouncement.

         In February 1998, the FASB issued SFAS No. 132, "Employers'  Disclosure
about Pensions and Other  Postretirement  Benefits." The statement  standardizes
the disclosure requirements for pension and other postretirement  benefits. This
statement  is  effective  for  financial  statements  issued  for  fiscal  years
beginning  after  December 15, 1997.  The Company is  currently  evaluating  the
impact of the disclosure. Beginning with fiscal year 1999, management intends to
conform its annual consolidated financial statements to this pronouncement.

         In March 1998, the AICPA issued SOP No. 98-1, "Accounting for the Costs
of Computer  Software  Developed or Obtained for Internal Use." The SOP requires
that  certain  costs  related to the  development  or purchase  of  internal-use
software be  capitalized  and amortized  over the  estimated  useful life of the
software.  The SOP also requires that costs related to the  preliminary  project
stage and the  post-implementation/operations  stage of an internal-use computer
software  development  project  be  expensed  as  incurred.  This  statement  is
effective  for  financial  statements  issued for fiscal years  beginning  after
December 15, 1998.  The Company's  management  believes that the adoption of SOP
98-1 will not have a material  impact on the  Company's  results of  operations.
Beginning with fiscal year 2000,  management intends to conform its consolidated
financial statements to this pronouncement.

                                       8




ITEM 2. Management's  Discussion and Analysis of Financial Condition and Results
        of Operations

General

         Fair, Isaac and Company,  Incorporated  provides  products and services
designed to help a variety of  businesses  use data to make better  decisions on
their customers,  prospective  customers and existing portfolios.  The Company's
products include  statistically  derived,  rule-based analytical tools, software
designed to implement  those  analytical  tools and consulting  services to help
clients use and track the performance of those tools.  The Company also provides
a range of credit scoring and credit account management  services in conjunction
with credit bureaus and credit card processing agencies. Its DynaMark subsidiary
provides data processing and database  management services to businesses engaged
in direct  marketing  activities,  many of which are in the credit and insurance
industries.

         The Company is organized  into  business  units that  correspond to its
principal  markets:  consumer credit,  insurance,  direct marketing  (DynaMark),
enterprise-wide  financial  risk  management  (RMT) and a new  unit,  healthcare
information.  Sales to the consumer credit industry have traditionally accounted
for the bulk of the Company's  revenues.  Products developed  specifically for a
single user in this  market are  generally  sold on a  fixed-price  basis.  Such
products  include  application and behavior  scoring  algorithms  (also known as
"analytic  products" or "scorecards"),  credit  application  processing  systems
(ASAP(TM) and  CreditDesk(R))  and custom  credit  account  management  systems,
including those marketed under the name TRIAD(TM). Software systems usually also
have a component of ongoing  maintenance  revenue,  and CreditDesk  systems have
also been sold under time- or volume-based  price  arrangements.  Credit scoring
and  credit  account  management   services  sold  through  credit  bureaus  and
third-party credit card processors are generally priced based on usage. Products
sold to the  insurance  industry  are  generally  priced  based on the number of
policies  in force,  subject to  contract  minimums.  DynaMark  and RMT employ a
combination of fixed-fee and usage-based pricing, and the healthcare information
unit  employs  a  combination  of  fixed-fee  and  usage-based  pricing  for its
products.

         This  discussion and analysis  should be read in  conjunction  with the
Company's Consolidated Financial Statements and Notes. In addition to historical
information,  this report includes certain forward-looking  statements regarding
events and trends that may affect the Company's future results.  Such statements
are subject to risks and  uncertainties  that could cause the  Company's  actual
results to differ  materially.  Such  factors  include,  but are not limited to,
those described in this discussion and analysis.

                                       9




Results of Operations
Revenues


         The following table sets forth for the fiscal periods indicated (a) the
percentage of revenues represented by fixed-price and usage-priced revenues from
the Credit  business  unit,  and the  percentage of revenues  contributed by the
DynaMark,  RMT, Insurance and Healthcare Information business units; and (b) the
percentage change in revenues within each category from the corresponding period
in the prior fiscal year. Credit fixed-price  revenues include all revenues from
custom scorecard,  software and consulting projects.  Most credit usage revenues
are generated  through  third-party  alliances such as those with credit bureaus
and third-party credit card processors.  In addition, some credit scorecards and
software products are licensed under volume-based fee arrangements and these are
included in credit usage-priced revenues.


                                                        Percentage of                              Percentage of
                                                           Revenue                                    Revenue
                                                      Three Months Ended                           Six Months Ended
                                                           March 31,           Percentage              March 31,          Percentage
                                                      ------------------         Change          ------------------         Change
                                                      1999          1998        ----------       1999          1998       ----------
                                                      ----          ----                         ----          ----
                                                                                                            
Credit
   Fixed-price                                         25%           27%            7%            25%           25%           19%
   Usage-priced                                        47%           45%           20%            47%           49%           17%
DynaMark                                               23%           20%           33%            22%           19%           42%
RMT                                                     1%            4%          (65%)            1%            3%          (47%)
Insurance                                               3%            3%            6%             4%            4%            9%
Healthcare Information                                  1%            1%           41%             1%  Less than 1%           NM
                                                      ---           ---                          ---           ---

Total revenues                                        100%          100%           15%           100%          100%           21%
                                                      ===           ===                          ===           ===

<FN>
NM = Not meaningful
</FN>



         The increase in fixed-price  credit revenues in the quarter ended March
31, 1999 was due  primarily to increased  revenues  from CRMA and the  Company's
end-user  credit  account  management  systems  ("TRIAD")  and behavior  scoring
projects.  The increase in fixed-price  credit revenues in the six-months  ended
March 31, 1999 was due  primarily  to  increased  revenues  from CRMA;  sales of
credit  application  scorecards and credit application  processing  software and
sales of end-user  credit  account  management  systems  ("TRIAD")  and behavior
scoring  projects.  CRMA's  revenues  were up 34 percent in the  quarter  and 47
percent in the six months ended March 31, 1999,  compared  with the same periods
of the prior  fiscal  year.  Compared  with the same  periods  of  fiscal  1998,
revenues  from sales of credit  application  scorecards  and credit  application
processing  software  increased by 6 percent in the quarter and by 16 percent in
the  six-months  ended March  31,1999.  Revenues  from end-user  credit  account
management  systems  ("TRIAD") and behavior  scoring  projects in the three- and
six-month  periods  ended  March 31,  1999,  were up 10 percent  and 20 percent,
respectively,  from the same periods of fiscal 1998 due primarily to the release
of the current version of TRIAD software.

         The increases in usage  revenues  from the Credit  business unit in the
quarter and six months ended March 31, 1999,  compared  with the same periods of
the prior  year,  were due to  continuing  growth in (a) usage of the  Company's
scoring  services  distributed  through  the three major  credit  bureaus in the
United  States  and (b) the number of  bankcard  accounts  being  managed by the
Company's account management services delivered through third-party  processors.
Revenues for the credit bureau scoring  services in the  six-months  ended March
31, 1999, were  approximately  18 percent higher than in the first six months of
fiscal 1998.  Revenues from credit account

                                       10




management services delivered through third-party  processors in the most recent
six months  were 12 percent  higher than in the  corresponding  period of fiscal
1998.

         Revenues from credit  bureau-related  services  increased 22 percent in
both fiscal l997 and fiscal 1998 and accounted for  approximately  35 percent of
revenues in fiscal 1997 and 1998.  During the six months  ended March 31,  1999,
revenues from credit bureau-related services increased 18 percent as compared to
the six months ended March 31, 1998.  Revenues  from services  provided  through
bankcard  processors  also  increased in each of these years,  primarily  due to
increases in the number of accounts at each of the major processors.

         Revenues  derived from  alliances  with credit  bureaus and credit card
processors  have accounted for much of the Company's  revenue growth in the last
three years. While the Company has been very successful in extending or renewing
such  agreements in the past, and believes it will generally be able to do so in
the future, the loss of one or more such alliances or an adverse change in terms
could have a  significant  impact on revenues  and  operating  margin.  Revenues
generated  through  the  Company's   alliances  with  Equifax,   Inc.,  Experian
Information Solutions,  Inc. (formerly TRW Information Systems & Services),  and
Trans Union  Corporation each accounted for approximately 7 to 10 percent of the
Company's total revenues in fiscal 1998.

         On September 30, 1997,  amendments to the federal Fair Credit Reporting
Act became  effective.  The Company  believes  these  changes to the federal law
regulating  credit  reporting  will be favorable to the Company and its clients.
Among other things,  the new law expressly permits the use of credit bureau data
to prescreen  consumers for offers of credit and insurance and allows affiliated
companies  to share  consumer  information  with each  other  subject to certain
conditions.  There is also a seven-year  moratorium on new state  legislation on
certain  issues.  However,  the states remain free to regulate the use of credit
bureau data in connection  with  insurance  underwriting.  The Company  believes
enacted  or  proposed  state  regulation  of the  insurance  industry  has had a
negative  impact on its efforts to sell  insurance  risk scores  through  credit
reporting agencies.

         Since its acquisition, DynaMark has taken on an increasing share of the
mainframe batch  processing  requirements of the Company's other business units.
During fiscal 1998, such intercompany revenue represented more than 8 percent of
DynaMark's total revenues. Accordingly,  DynaMark's externally reported revenues
tend to understate DynaMark's growth and contribution to the Company as a whole.
The increase in DynaMark's revenues shown in the foregoing table, which excludes
such  intercompany  revenues,  was due  primarily  to  increased  revenues  from
customers in the financial  services  industry.  RMT's revenues decreased in the
three- and six month periods ended March 31, l999, principally due to the impact
of bank consolidations.

         The increases in Insurance  revenues for the  three-month and six-month
periods  ended March 31,  1999,  compared  with the same periods in fiscal 1998,
were due  primarily  to growth in insurance  scoring  services  offered  through
consumer reporting agencies. In the quarter and six-month period ended March 31,
l999, the Company's  Healthcare  Information business unit derived revenues from
providing analytical marketing services to a large pharmaceuticals  manufacturer
to help improve customer relationships and management of prescription compliance
(i.e., patient's fulfillment of prescriptions and taking them to completion). In
the  quarter   ended   December   31,  1998,   the  Company   signed  its  first
revenue-generating  contract for its receivables management system for hospitals
and  healthcare  providers  (introduced in December 1997) and in the quarter and
six months ended March 31, 1999, derived revenues from this new product.

         Revenues  derived  from  outside  of  the  United  States   represented
approximately  15% of total  revenues in both the quarter and  six-months  ended
March 31, 1999, compared with approximately 18% of total revenues in the quarter
and six-months ended March 31, 1998.

         Revenues  from  software   maintenance  and  consulting  services  each
accounted for less than 10 percent of revenues in each of the three years in the
period ended September 30, 1998, and in the six-months ended March 31, 1999. The
Company  does not  expect  revenues  from  either of these  sources to exceed 10
percent of revenues in the foreseeable future.

                                       11




         During the period since 1990,  while the rate of account  growth in the
U.S.  bankcard  industry  has been  slowing  and many of the  Company's  largest
institutional  clients have merged and  consolidated,  the Company has generated
above-average  growth  in  revenues--even  after  adjusting  for the  effect  of
acquisitions--from its bankcard-related  scoring and account management business
by  deepening  its  penetration  of large banks and other  credit  issuers.  The
Company  believes much of its future growth  prospects  will rest on its ability
to: (a) develop  new,  high-value  products,  (b) increase  its  penetration  of
established  or emerging  credit  markets  outside  the U.S.  and Canada and (c)
expand--either  directly  or  through  further   acquisitions--into   relatively
undeveloped  or  underdeveloped  markets for its products and services,  such as
direct marketing,  insurance,  small business lending and healthcare information
management. During fiscal 1998, the Company's backlog of orders for fixed-priced
products declined slightly, and during the six months ended March 31, 1999, this
backlog declined an additional $7.7 million.  This indicates that revenue growth
in the  remainder of fiscal 1999 and later years may depend to a large extent on
sales of newly developed products,  and that revenue growth during the remainder
of fiscal 1999 may be slower than during the six months ended March 31, 1999.

         On March 8, 1999,  the  Company  announced  a new  strategic  focus and
several  growth  initiatives.  The  Company  plans to  continue  to focus on its
traditional  core  business,   financial  services,  and  to  pursue  additional
opportunities in the healthcare  market. In addition,  the Company will form two
new  business  units  to  pursue  opportunities  in the  telecommunications  and
e-business industries and realign existing business and service units to support
these new initiatives.

         Over the long term,  in addition to the factors  discussed  above,  the
Company's  rate of  revenue  growth--excluding  growth  due to  acquisitions--is
limited by the rate at which it can recruit and absorb  additional  professional
staff.  Management believes this constraint will continue to exist indefinitely.
On the other hand, despite the high penetration the Company has already achieved
in certain markets,  the  opportunities for application of its core competencies
are much greater than it can pursue.  Thus, the Company believes it can continue
to grow revenues,  within the personnel constraint,  for the foreseeable future.
At times  management  may forego  short-term  revenue  growth in order to devote
limited resources to opportunities  that it believes have exceptional  long-term
potential,  as is the case  currently  with the  inclusion in its new  strategic
focus  of  opportunities  in  the  telecommunications  and  electronic  commerce
markets.  This also  occurred in the period  from 1988  through  1990,  when the
Company devoted  significant  resources to developing the usage-priced  services
distributed through credit bureaus and third-party processors.

                                       12




Expenses


         The  following  table  sets  forth for the  periods  indicated  (a) the
percentage  of  revenues  represented  by certain  line  items in the  Company's
consolidated  statements of income and (b) the  percentage  change in such items
from the same periods in the prior fiscal year.


                                                                Six Months                          Three Months
                                                                   Ended                                Ended
                                                                  March 31,         Percentage         March 31,         Percentage
                                                            -----------------         Change       -----------------       Change
                                                            1999         1998       ----------     1999         1998      ----------
                                                            ----         ----                      ----         ----
                                                                                                             
Revenues                                                     100%         100%          21%         100%         100%          15%
Costs and expenses:
   Cost of revenues                                           38           36           27%          39           36           27%
   Sales and marketing                                        15           16           14%          15           15           10%
   Research and development                                   11           12           11%          11           12            6%
   General and administrative                                 18           21            4%          17           21           (5%)
   Amortization of intangibles                                 1            1           46%           1            1           65%
                                                             ---          ---                       ---          ---
     Total costs and expenses                                 83           86           17%          83           85           13%
                                                             ---          ---                       ---          ---
Income from operations                                        17           14           48%          17           15           30%
   Other income and expense                                    1  Less than 1           NM            2            1           NM
                                                             ---          ---                       ---          ---
Income before income taxes                                    18           14           56%          19           16           36%
   Provision for income taxes                                  7            6           59%           8            7           36%
                                                             ---          ---                       ---          ---
Net income                                                    11%           8%          53%          11%           9%          36%
                                                             ===          ===                       ===          ===

<FN>
         NM = Not meaningful
</FN>



Cost of revenues

         Cost of revenues consists  primarily of personnel,  travel, and related
overhead costs;  costs of computer service bureaus;  and the amounts paid by the
Company to credit bureaus for scores and related  information in connection with
the  ScoreNet(R)  service.  The cost of revenues,  as a percentage  of revenues,
increased in the three- and  six-months  ended March 31, 1999,  as compared with
the same  periods  a year  earlier,  due to  changes  in sales of the  Company's
product mix.

Sales and marketing

         Sales and marketing expenses consist principally of personnel,  travel,
overhead,  advertising  and  other  promotional  expenses.  As a  percentage  of
revenues,  these expenses decreased slightly in the six-month period ended March
31, 1999,  compared  with the same period in fiscal  1998,  due to a decrease in
expenses for media  advertising  to increase brand  visibility  and  researching
market opportunities  outside the United States. These expenses, as a percentage
of revenues,  were essentially unchanged,  for the quarter ended March 31, 1999,
as compared with the same period a year earlier.

Research and development

Research and  development  expenses  include the personnel and related  overhead
costs incurred in developing products,  researching mathematical and statistical
algorithms,   and  developing   software  tools  that  are  aimed  at  improving
productivity  and management  control.  After several years of  concentrating on
developing new  markets--either  geographical or by  industry--for  its existing
technologies, the Company has increased emphasis on developing

                                       13




new technologies,  especially in the area of software development.  Research and
development  expenditures  in the  six-month  period  ending March 31, l999 were
primarily  related  to  new   fraud-detection   software  products,   healthcare
receivables  management and Year 2000 compliance work.  Research and development
expenditures  in the  quarter  ended March 31,  1999 were  primarily  related to
fraud-detection  software products,  healthcare receivables management and a new
release of TRIAD software. Research and development expenses, as a percentage of
revenues,  declined slightly over the corresponding  periods of fiscal 1998. The
Company expects that research and  development  expenses will increase in future
periods for development of new products targeted for the  telecommunications and
e-commerce markets.

General and administrative

         General and  administrative  expenses  consist  mainly of  compensation
expenses for certain senior management, corporate facilities expenses, the costs
of administering certain benefit plans, legal expenses, expenses associated with
the  exploration  of new  business  opportunities  and the  costs  of  operating
administrative  functions such as finance and computer information systems. As a
percentage of revenues, these expenses for the six-month and three-month periods
ended March 31,  1999,  were lower than in the  corresponding  periods of fiscal
1998, due primarily to reassignment of personnel and related costs.  The Company
expects  increased  facilities costs in the fourth quarter of fiscal 1999 due to
planned office expansions.

Amortization of intangibles

         The Company is amortizing  the  intangible  assets arising from various
acquisitions over periods ranging from two to fifteen years. The Company expects
to make the final  additional  payment  (earnout) to the former  shareholders of
Credit & Risk Management Associates,  Inc., a privately held company acquired in
1996,  in the  approximate  amount of $2.1 million in the third  quarter of this
fiscal year,  which payment is anticipated to increase the level of amortization
expense.

Other income and expense

         Interest  income,  derived from the  investment of funds surplus to the
Company's   immediate  operating   requirements,   increased  in  the  six-  and
three-months  ended March 31, 1999,  compared with the  corresponding  periods a
year earlier due to higher balances invested in interest bearing instruments. In
the  corresponding  periods  in the prior  fiscal  year,  the  Company  recorded
interest expense  resulting from a federal tax audit. In the quarter ended March
31, 1999, the Company recorded a one-time gain of approximately  $484,000 on the
sale of investment securities.

Provision for income taxes

         The  Company's  effective  tax rate  increased to 42% in the  six-month
period ended March 31, 1999 from 41% in the corresponding period of fiscal 1998,
due primarily to the nondeductible nature of goodwill, deferred compensation and
an increase in the effective state tax rate. In both  three-month  periods ended
March 31, 1999 and 1998, the Company's effective tax rate was 42%.

Financial Condition

         Working  capital  increased  from  $54,852,000 at September 30, 1998 to
$67,597,000 at March 31, 1999.  Cash and marketable  investments  increased from
$53,487,000  at  September  30, 1998,  to  $60,560,000  at March 31,  1999.  The
Company's  long-term  obligations are mainly due to lease and employee incentive
and benefit obligations.

         On December  1, 1997,  the Company  purchased  undeveloped  land in San
Rafael,  California,  with the intention of  constructing  an office  complex to
accommodate future growth.  Development has commenced,  and on May 15, 1998, the
Company  entered  into a  synthetic  lease  arrangement,  which will  materially
increase the Company's  future  operating lease  expenses.  Rental payments will
commence  upon  completion  of  construction,  which is expected to

                                       14




occur in the second quarter of fiscal 2001.  With this external  financing,  the
Company  believes that the cash and  marketable  securities on hand,  along with
cash  expected  to be  generated  by  operations,  will be  adequate to meet its
capital  and  liquidity  needs  for both the  current  year and the  foreseeable
future.

         On March 25, 1999, the Company announced approval of a stock repurchase
program under which it would begin  purchasing  up to one million  shares of its
common  stock, to be funded by cash on hand. As of May 12, 1999, the Company had
repurchased 204,078 shares at a cost of approximately $7.2 million.

Interim Periods

         Quarterly   results  may  be  affected  by   fluctuations  in  revenues
associated  with  credit  card  solicitations,  by the  timing of orders for and
deliveries of certain ASAP and TRIAD systems, and by the seasonality of ScoreNet
purchases.  With the  exception  of the cost of ScoreNet  data  purchased by the
Company,  most  of  its  operating  expenses  are  not  affected  by  short-term
fluctuations in revenues;  thus  short-term  fluctuations in revenues may have a
significant  impact  on  operating  results.  However,  in recent  years,  these
fluctuations  were  generally  offset  by the  strong  growth in  revenues  from
services delivered through credit bureaus and third-party  bankcard  processors.
Management  believes  that neither the  quarterly  variation in revenues and net
income,  nor  the  results  of  operations  for  any  particular  quarter,   are
necessarily   indicative  of  results  of  operations  for  full  fiscal  years.
Accordingly,  management believes that the Company's results should be evaluated
on an annual basis.

Year 2000

         The Company is performing  Year 2000  remediation  work and  compliance
testing on its software products marketed to customers.  The updated versions of
its  software  products  currently  being  shipped  to  customers  are Year 2000
compliant.  Year 2000 remediation work,  including  compliance testing, for most
earlier versions of the Company's  software installed at customer sites is being
performed as part of the Company's normal upgrade and maintenance process. Prior
to the end of calendar  1999,  the  Company  will  discontinue  support for some
software  products  that have been  replaced  by other  products,  and Year 2000
upgrades for these  products will not be available.  Revenues from such products
are not significant. There are no assurances that the Company's current products
do not  contain  undetected  errors or  defects  associated  with Year 2000 date
functions that may result in material costs to the Company.

         In addition Year 2000 issues may cause  customers to slow down computer
software  purchases  as they devote  more time to  preparing  and testing  their
systems  for Year 2000  readiness,  or to  accelerate  such  purchases  to allow
sufficient time to evaluate,  implement and test new systems prior to the advent
of the Year 2000.  The  Company is also  aware of a growing  number of  lawsuits
against  other  software  vendors  arising out of Year 2000  compliance  issues.
Because of the unprecedented nature of such litigation,  it is uncertain to what
extent the Company may be affected by it.

         However,  the Company currently does not expect significant  disruption
of its  revenues or  operations  from the Year 2000 issues  associated  with its
products.  The Company has not made an  assessment  of the  potential  impact of
failing  to  complete  its own Year  2000  remediation  work  and is  developing
contingency plans for such an event.

         Additionally,  the Company has  substantially  completed  its Year 2000
inventory,  assessment and remediation of internal  information  technology (IT)
and non-IT  systems  and  applications  as of April 30,  1999.  The  Company has
determined that all of its business-critical systems have been thoroughly tested
and are Year 2000 compliant.  For all IT applications supplied to the Company by
third parties,  appropriate  available "patches" have been applied to bring them
into compliance.  Extensive  compliance  testing has commenced and will continue
through  June  1999,  with  priority  given to  business-critical  IT and non-IT
systems and applications.  The most reasonably likely worst-case scenarios would
include:  (a) corruption of data contained in the Company's internal information
systems,  and (b)  hardware/operating  system  failure.  The  Company  is in the
process of completing its contingency plans for  business-critical IT and non-IT
internal  systems as an  extension of its existing  disaster  recovery  plan and
expects to complete such planning by June 30, 1999.

                                       15




         As  of  March  31,  1999  costs  expended  for  Year  2000  remediation
(including   compliance   testing)  of  products   and   internal   systems  are
approximately $4.6 million, and the Company currently does not expect such costs
to exceed $5 million.  The Company anticipates that additional expenses incurred
for Year 2000 work will relate  primarily to contingency  planning.  These costs
principally  consist of both  internal  staff costs and  expenses  for  external
consultants,  software and hardware,  which have been or will be expensed by the
Company  during the period they are incurred.  Expected  costs for the Year 2000
remediation work (including  compliance testing) and projected  completion dates
are based on the Company's  management's  estimates and  assumptions  and actual
results may vary materially from those anticipated.

         The Company has also  initiated  communications  with third  parties on
which it is dependent for  essential  services and for the  distribution  of its
significant  services to determine how they are addressing  Year 2000 issues and
to evaluate any impact on the Company's operations.  The Company is working with
these  third  parties to resolve  Year 2000  issues,  including  in some  cases,
jointly  developing  contingency plans.  Information  received to date indicates
that these parties are in the process of implementing and/or testing remediation
strategies to ensure Year 2000 compliance of systems,  services and/or products.
However, the lack of resolution of Year 2000 issues by these parties--especially
the  credit  bureaus  and  credit  card  processors  through  which the  Company
distributes  credit  scoring  and  account  management  services--could  have  a
material adverse impact on the Company's future business  operations,  financial
condition and results of operations.

         The Company  anticipates  that the most  reasonably  likely  worst-case
scenarios involving  third-party Year 2000 issues would include:  (a) failure of
infrastructure services provided by government agencies and third parties (e.g.,
transportation, electricity, telephone, Internet services, etc.) and (b) failure
of one or more of the credit bureaus or credit card processors through which the
Company  distributes  its credit  scoring  and  account  management  services to
achieve timely and successful Year 2000 compliance. Contingency plans to address
these most reasonably likely worst-case  scenarios are under development and are
expected to be  completed  by June 30,  1999.  At this time the  Company  cannot
quantify the potential impact of third-party Year 2000 issues.

         The foregoing  information and statements  regarding the Company's Year
2000  capabilities  and  readiness  are "Year  2000  Information  and  Readiness
Disclosures"  in  conformance  with  the Year  2000  Information  and  Readiness
Disclosure Act of 1998 enacted on October 19, 1998.

European Economic and Monetary Union (EMU)

         Under the European  Union's plan for Economic and Monetary Union (EMU),
the euro  becomes the sole  accounting  currency of EMU  countries on January 1,
2002. Its initial phase became  effective on January 1, 1999 in 11 participating
countries:   Austria,   Belgium,   Finland,  France,  Germany,  Ireland,  Italy,
Luxembourg,  the  Netherlands,  Portugal and Spain.  In this  initial  phase EMU
mandates that key financial  systems be able to triangulate  conversion rates so
that any amount booked will be logged and processed  simultaneously  in both the
local  currency and euros.  The Company  believes that its computer  systems and
programs are euro-compliant.  Costs associated with compliance were not material
and were expensed by the Company as they were incurred.

                                       16




ITEM 3. Quantitative and Qualitative Disclosures About Market Risk

         Market Risk Disclosures.  The following  discussion about the Company's
market risk  disclosures  involves  forward-looking  statements.  Actual results
could differ materially from those projected in the forward-looking  statements.
The  Company is exposed to market  risk  related to changes in  interest  rates,
foreign currency exchange rates and equity security price risk. The Company does
not use derivative financial instruments for speculative or trading purposes.

         Interest  Rate   Sensitivity.   The  Company  maintains  an  investment
portfolio  consisting  mainly of income  securities with an average  maturity of
less than  five  years.  These  available-for-sale  securities  are  subject  to
interest rate risk and will fall in value if market interest rates increase.  If
market  interest rates were to increase  immediately and uniformly by 10 percent
from levels at March 31, 1999, the fair value of the portfolio  would decline by
an  immaterial  amount.  The Company  has the  ability to hold its fixed  income
investments  until  maturity,  and  therefore  the Company  would not expect its
operating results or cash flows to be affected to any significant  degree by the
effect of a sudden change in market interest rates on its securities  portfolio.
The Company believes foreign currency and equity risk is not material.


                           PART II - OTHER INFORMATION

ITEM 6.  Exhibits and Reports on Form 8-K.

(a)      Exhibits:

           24.1          Power of Attorney (see page 18 of this Form 10-Q).
           27.1          Financial Data Schedule
           27.2          Revised Financial Data Schedule

(b)      Reports on Form 8-K:

         One report on Form 8-K was filed  during the  quarter  ended  March 31,
1999. A report on Form 8-K was filed March 9, 1999 reporting  planned changes in
the  organizational  structure  of  the  Company.  These  changes  will  include
formation   of   two   new   business   units   in   electronic   commerce   and
telecommunications and realignment of existing business and service units of the
Company.

                                       17



                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned thereunto duly authorized.


                                        FAIR, ISAAC AND COMPANY, INCORPORATED

DATE: May 14, 1999

                                        By PETER L. MCCORKELL
                                           -------------------------------------
                                           Peter L. McCorkell
                                           Senior Vice President and Secretary


                                POWER OF ATTORNEY

         KNOW ALL PERSONS BY THESE  PRESENTS,  that the person  whose  signature
appears below constitutes and appoints PETER L. McCORKELL his  attorney-in-fact,
with full power of substitution,  for him in any and all capacities, to sign any
amendments  to this  Report  on Form 10-Q and to file the  same,  with  exhibits
thereto and other  documents in connection  therewith,  with the  Securities and
Exchange   Commission,   hereby   ratifying   and   confirming   all  that  said
attorney-in-fact,  or his substitute or substitutes,  may do or cause to be done
by virtue hereof.

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
this  report  has been  signed  below by the  following  person on behalf of the
registrant and in the capacities and on the date indicated.


DATE: May 14, 1999

                                        By LENNOX L. VERNON
                                           -------------------------------------
                                           Lennox L. Vernon
                                           Vice President, Acting Chief
                                           Financial Officer and Treasurer

                                       18




                                  EXHIBIT INDEX

                    TO FAIR, ISAAC AND COMPANY, INCORPORATED
            REPORT ON FORM 10-Q FOR THE QUARTER ENDED MARCH 31, 1999

                                                                   Sequentially
Exhibit No.           Exhibit                                      Numbered Page
- -----------           -------                                      -------------
24.1                  Power of Attorney                                  18
27.1                  Financial Data Schedule                            20
27.2                  Revised Financial Data Schedule                    21

                                       19