EXHIBIT 10.43


                             MASTER LEASE AGREEMENT

         This Master Lease Agreement ("Master Agreement"), dated as of
September 29, 1999, and referred to as Lease Number 0099026, is entered into
by and between Silicon Valley Bank ("Lessor"), with its principal place of
business at 3003 Tasman Drive, NC 400, Santa Clara, CA 95054 and Breakaway
Solutions Inc., a Delaware corporation ("Lessee"), with its principal place
of business at 50 Rowes Wharf, 6th Floor, Boston, MA 02110. As used herein,
all terms shall have the meanings set forth below.

         "Acceptance Certificate" means the form of certificate provided by
Lessor to evidence Lessee's acceptance of the Equipment.

         "Acceptance Date" the date the Lessee signs and delivers to Lessor the
Acceptance Certificate.

         "Applicable Term" the Initial Term and any renewal or extension
thereof.

         "Assignee" means any party to whom Lessor assigns Lessor's rights to
any Lease.

         "Casualty" means any event upon which any Equipment is condemned,
taken, lost destroyed, stolen or damaged beyond repair.

         "Claims" means any and all claims, actions, suits, proceedings, costs,
expenses (including court costs and reasonable attorneys' fees), damages,
obligations, penalties, injuries and liabilities, including actions based on
Lessor's strict liability in tort.

         "Commitment Amount" means the aggregate Schedule Commitment Amounts up
to a maximum of $4,000,000 in the aggregate.

         "Contingent Obligation' means, as applied to Lessee, any direct or
indirect liability, contingent or otherwise, of Lessee with respect to (i) any
indebtedness, lease, dividend, letter of credit or other obligation of another,
including, without limitation, any such obligation directly or indirectly
guaranteed, endorsed, co-made or discounted or sold with recourse by Lessee, or
in respect of which Lessee is otherwise directly or indirectly liable; (ii) any
obligations with respect to undrawn letters of credit issued for the account of
Lessee; and (iii) all obligations arising under any interest rate, currency or
commodity swap agreement, interest rate cap agreement, interest rate collar
agreement, or other agreement or arrangement designated to protect Lessee
against fluctuation in interest rates, currency exchange rates or commodity
prices; provided that the term "Contingent Obligation" shall not include
endorsements for collection or deposit in the ordinary course of business. The
amount of any Contingent Obligation shall be deemed to be an amount equal to the
stated or determined amount of the primary obligation in respect of which such
Contingent Obligation is made or, if not stated or determinable, the maximum
reasonably anticipated liability in respect thereof



                                      -1-



as determined by Lessee in good faith; provided that such amount shall not in
any event exceed the maximum amount of the obligations under the guarantee or
other support arrangement.

         "Credit Extension" means each Lease, each loan under the Loan
Documents, and any other extension of credit by Lessor for the benefit of
Lessee.

         "Current Assets" means, as of any applicable date, all amounts that
should, in accordance with GAAP, be included as current assets on the
consolidated balance sheet of Lessee and its subsidiaries as at such date.

         "Current Liabilities" means, as of any applicable date, all amounts
that should, in accordance with GAAP, be included as current liabilities on the
consolidated balance sheet of Lessee and its subsidiaries, as at such date,
plus, to the extent not already included therein, all outstanding Credit
Extensions, including all Indebtedness that is payable upon demand or within one
year from the date of determination thereof unless such Indebtedness is
renewable or extendable at the option of Lessee or any subsidiary to a date more
than one year from the date of determination, but excluding Subordinated Debt.

         "Cut-off Date" means December 30, 1999.

         "Default" means any of the events of default described in Section 16 of
this Master Agreement.

         "Equipment" means the items of equipment leased under each Schedule.
For the purpose of this Master Agreement, Equipment shall mean both hardware and
software.

         "Equipment Location" means the location of the Equipment specified in
each Schedule.

         "First Payment Date" has the meaning set forth in the applicable
Schedule.

         "GAAP" means generally accepted accounting principles as in effect in
the United States from time to time.

         "Imposition" means each license fee, assessment, and sales, use,
property, excise and other tax.

         "Indebtedness" means (a) all indebtedness for borrowed money or the
deferred purchase price of property or services, including without limitation
reimbursement and other obligations with respect to surety bonds and letters of
credit, (b) all obligations evidenced by notes, bonds, debentures or similar
instruments, (c) all capital lease obligations and (d) all Contingent
Obligations.



                                      -2-



         "Interim Rent" has the meaning, if any, set forth in Section 5 of the
Schedule.

         "Initial Term" means the total monthly, quarterly or other term of each
Lease, as specified in the Schedule.

         "Lease" means each Schedule.

         "License" means collectively, if the Equipment includes any software, a
license identical to that held by Lessee relating to the use of any software,
technical information, confidential business information and other
documentation.

         "Loan Documents" means that certain Loan and Security Agreement, dated
on or about the date hereof, between Lessor, as lender, and Lessee, as borrower,
together with all related agreements, instruments and documents and all
amendments and modifications thereto.

         "Material Agreement" means collectively this Master Agreement, any
Lease, any Transaction Document, and Loan Document or any other agreement
between Lessee and Lessor, or any material agreement between Lessee and any
third party, specifically including, without limitation, any agreement or
agreements between Lessee and any third party which in the aggregate give the
third party the right, whether or not exercised, to accelerate any Indebtedness
exceeding $100,000.

         "Original" means the single counterpart of the Schedule, including
Rider 1 attached thereto and incorporated therein by reference, marked
"Original."

         "Purchase Documents" means collectively any purchase order, contract or
other documents Lessee has approved or entered into with the applicable
Supplier.

         "Quick Assets" means, as of any applicable date, the consolidated cash,
cash equivalents, accounts receivable and investments with maturities of fewer
than 90 days of Lessee determined in accordance with GAAP.

         "Rent" means the amounts payable by Lessee to Lessor for the Equipment.

         "Rider 1" means the rider marked "Rider 1" which is attached to and
incorporated within each Schedule.

         "Schedule" means each schedule containing the specific terms of each
individual lease.

         "Schedule Commitment Amount" means, with respect to a Schedule, the
amount identified as such in the Schedule.



                                      -3-



         "Stipulated Loss Value" means the stipulated loss value of the
Equipment as specified in Rider 1 to the Schedule.

         "Subordinated Debt" means any debt incurred by Lessee that is
subordinated to the debt owing by Lessee to Lessor on terms acceptable to Lessor
(and identified as being such by Lessee and Lessor).

         "Supplier" means the seller of the applicable Equipment.

         "Total Cost" means the Equipment acquisition cost including such
shipping, delivery, installation and other charges as Lessor shall have approved
set forth in Section 3 of the Schedule, as adjusted pursuant to Section 6 of
this Master Agreement.

         "Tax Benefits" means collectively certain deductions, credits, and
other tax benefits as are provided in the Internal Revenue Code of 1986, as
amended, including without limitation, accelerated depreciation and interest
deductions to which Lessor may be entitled.

         "Transaction Documents" means collectively this Master Agreement, all
Leases and all other related instruments or documents executed and/or delivered
hereunder or in connection herewith.

              1.        LEASE OF EQUIPMENT. This Master Agreement sets forth the
                   general terms and conditions which apply to the lease of
                   equipment from Lessor to Lessee. The specific terms of each
                   individual lease are set forth in a separate Schedule,
                   including the Equipment leased under the applicable Schedule.
                   Each Schedule constitutes a separate and distinct Lease,
                   enforceable according to its terms. In the event of any
                   conflict between the terms of this Master Agreement and any
                   related Schedule, the provisions of the applicable Schedule
                   shall govern. The parties agree that each Schedule
                   incorporates this Master Agreement by reference by listing
                   the lease number (as specified above) on the Schedule. A
                   Lease shall not become effective until accepted by Lessor.
                   Lessee may present proposed Equipment to Lessor for lease
                   pursuant hereto and under a Schedule, for a term with respect
                   to each Schedule of 36 months, with no more than one Schedule
                   per month entered into between Lessor and Lessee, for
                   Equipment as set forth in the Schedule in an amount equal to
                   the Schedule Commitment Amount, such Schedules to be entered
                   into between Lessor and Lessee from the date hereof up to the
                   Cut-Off Date and in an amount of the aggregate Schedule
                   Commitment Amounts not to exceed the Commitment Amount.

              2.        TERM. This Master Agreement shall commence upon the
                   execution hereof by both parties, and shall continue until
                   the full



                                      -4-



                   performance of all terms hereunder. Initial Term shall be as
                   specified in each Schedule. The Applicable Term shall be
                   automatically extended for successive one-month periods
                   unless either party gives the other party sixty days' prior
                   written notice that it intends to terminate the Lease at the
                   end of the Applicable Term.

              3.        ACCEPTANCE. The Equipment is unconditionally accepted
                   under the Lease on the Acceptance Date. Lessee shall accept
                   the Equipment as soon as it is delivered or, if acceptance
                   requirements are specified in the applicable Purchase
                   Documents, as soon as such requirements are met. Upon the
                   execution of the Acceptance Certificate, Lessee shall
                   promptly deliver it to Lessor.

              4.        RENT; NON-CANCELABLE NET LEASE. As Rent for the
                   Equipment, Lessee agrees to pay the amounts specified in the
                   Schedule, which rent amounts shall be calculated, with
                   respect to each Schedule, using a rent factor equal to the
                   rate on U.S. Treasury securities of a comparable term plus
                   two and one-half percentage points (250 basis points). Lessee
                   acknowledges and agrees that all Leases hereunder are
                   non-cancelable net Leases, and Lessee agrees that its
                   obligation to pay Rent and all other amounts when due is
                   unconditional. Lessee is not entitled to abate or reduce rent
                   or any other amounts due, or to set off any charges against
                   those amounts. Lessee is not entitled to claim or assert any
                   recoupments, cross-claims, counterclaims or any other
                   defenses to any rent payments or other amounts due hereunder,
                   whether those defenses arise out of claims by Lessee against
                   Lessor, Supplier, this Master Agreement, any Schedule or
                   otherwise. If the Equipment is not properly installed, does
                   not operate as represented or warranted by Supplier or is
                   unsatisfactory for any reason whatsoever, Lessee shall make
                   any claim or account thereof solely against Supplier and
                   shall nevertheless pay all sums payable under any Lease.
                   Lessee hereby waives any such claims against Lessor and any
                   Assignee.

              5.        ASSIGNMENT OF PURCHASE DOCUMENTS. Lessee assigns to
                   Lessor all of Lessee's right, title and interest in and to
                   the Equipment described in the Purchase Documents and in the
                   Schedule. This assignment is an assignment of rights only,
                   and Lessee shall remain liable for all obligations under the
                   Purchase Documents, except that Lessor shall pay for the
                   Equipment within 30 days of the Acceptance Date or as
                   otherwise agreed by Lessor in writing. If Lessee has not
                   entered into Purchase Documents for such Equipment, Lessee
                   authorizes Lessor to act as Lessee's agent to execute such
                   Purchase Documents. Lessee also represents and warrants that
                   it has received and approved a copy of the Purchase
                   Documents, or has been advised by Lessor of (a) the name of



                                      -5-



                   the Supplier of the Equipment, (b) that Lessee may have
                   rights under such Supplier's Purchase Documents, and (c) that
                   Lessee may contact the Supplier for information on such
                   rights. In addition, Lessee shall deliver to Lessor a
                   document acceptable to Lessor whereby Supplier acknowledges
                   and provides any consent required by Lessor or otherwise
                   necessary to such assignment. If the Equipment includes any
                   software, Supplier shall agree in such acknowledgment and
                   consent that upon the return of the Equipment to Lessor the
                   Supplier will either grant Lessor a License and permit Lessor
                   to assign such License to any subsequent end-user of the
                   Equipment, or grant any such subsequent end-user such a
                   License, but at no additional charge other than any regularly
                   scheduled fee or charge otherwise payable by Lessee; provided
                   that Lessee shall at all times remain liable to Supplier as
                   the licensee under its license, and Lessor shall not have any
                   obligation thereunder unless and until such license is
                   provided to Lessor in accordance with these provisions.
                   Lessor shall have no obligation or liability with respect to
                   Lessee's, or any subsequent third-party licensee's,
                   compliance under the applicable license. In addition, with
                   respect to any such software, Supplier shall agree that it
                   will not terminate Lessee's license thereof without first
                   providing 90 days' prior written notice to Lessor of any
                   intended termination and providing Lessor the right to cure
                   such breach by Lessee of its license as gave rise to such
                   notice of intended termination. Supplier shall also agree to
                   provide all software upgrades and modifications during the
                   Applicable Term to Lessee, or Lessor or other subsequent
                   licensee, on the same basis as offered to Supplier's other
                   commercial customers. Lessee agrees that neither Supplier nor
                   any salesperson or other employee or representative of
                   Supplier is an agent of Lessor, nor is any such person
                   authorized to waive or alter any terms of this Master
                   Agreement or any Lease.

              6.        ADJUSTMENTS. The Total Cost and Rent payment set forth
                   in each Schedule are estimates, and if the final invoice from
                   the Supplier specifies a Total Cost (including delivery,
                   installation, taxes and other charges) that is more or less
                   than such estimated Total Cost, Lessee hereby authorizes
                   Lessor to adjust accordingly the Total Cost and Rent payment
                   on the applicable Schedule. All references in this Agreement
                   and in any Schedule to Total Cost and Rent payment shall mean
                   the estimates thereof specified in the applicable Schedule,
                   as adjusted pursuant to this Section 6.

              7.        EQUIPMENT RETURN REQUIREMENTS. On or before the
                   termination of a Lease, Lessee shall pack the Equipment in
                   accordance with the manufacturer's guidelines and deliver
                   such Equipment (along with all operating manuals) to Lessor
                   at any destination within the continental



                                      -6-


                   United States designated by Lessor. All dismantling,
                   packaging, transportation, in-transit insurance and shipping
                   charges shall be borne by Lessee. All Equipment shall be
                   returned to Lessor in the same condition and working order as
                   when delivered to Lessee, reasonable wear and tear excepted,
                   and shall be certifiable for maintenance by the manufacturer
                   at its standard rates.

              8.        EQUIPMENT USE AND MAINTENANCE. Lessee is solely
                   responsible for the selection, installation, operation and
                   maintenance of the Equipment and all costs related thereto,
                   including shipping charges. Lessee shall at all times operate
                   and maintain the Equipment in good operating order, repair,
                   condition and appearance, normal wear and tear excepted, and
                   in accordance with its manufacturer's specifications and
                   recommendations. On reasonable prior notice to Lessee, Lessor
                   and Lessor's agents shall have the right, during Lessee's
                   business hours, to enter the premises where the Equipment is
                   located for the purpose of inspecting the Equipment and
                   observing its use. Lessee shall, at its expense, affix and
                   maintain in a prominent position on each item of Equipment
                   any tags or identifying labels provided by Lessor to indicate
                   Lessor's ownership of the Equipment. Lessee shall, at its
                   expense, enter into, maintain and enforce at all times a
                   maintenance agreement to service and maintain the Equipment,
                   upon terms and with a provider acceptable to Lessor.

              9.        EQUIPMENT OWNERSHIP; ATTACHMENTS; LOCATION. Lessor is
                   the sole owner of the Equipment and has sole title thereto.
                   Lessee covenants that it will not pledge or encumber the
                   Equipment or Lessor's interest in the Equipment in any manner
                   whatsoever nor permit any liens to be attached thereto.
                   Lessee shall not make any representation to any third-party
                   inconsistent with Lessor's sole ownership of the Equipment.
                   The Equipment shall remain Lessor's personal property whether
                   or not affixed to realty and shall not become or be made to
                   become a part of any real property on which it is placed
                   without Lessor's prior written consent. All additions,
                   attachments and accessories placed on the Equipment or
                   repairs made to the Equipment become a part thereof and
                   Lessor's property. Lessee shall maintain the Equipment so
                   that it may be removed from any building in which it is
                   placed without damage thereto. The Equipment will be located
                   at the Equipment Location, and Lessee shall not move it and
                   shall not permit it to be moved without the prior written
                   consent of Lessor, provided that in the event Lessee intends
                   to move the Equipment Location to another Equipment Location,
                   Lessee shall provide Lessor thirty (30) days prior notice of
                   where such Equipment is to be moved and shall execute such



                                      -7-


                   documents as Lessor requires to enable Lessor to maintain
                   continued perfection of its interests in the Equipment.

              10.       INSURANCE. Lessee agrees to keep the Equipment insured
                   at Lessee's expense against all risks of loss, including
                   theft or damage from any cause whatsoever. Lessee agrees that
                   such insurance shall name Lessor as a loss payee, with a full
                   waiver of warranties (Form BFU-438 or comparable) and provide
                   coverage not less than the greater of the Stipulated Loss
                   Value of the Equipment and the then-current fair market value
                   of the Equipment. Lessee also agrees that it shall carry
                   public liability insurance in an amount consistent with
                   prudent business practices and customary to Lessee's
                   industry. Each policy shall provide that the insurance cannot
                   be canceled without at least thirty (30) days prior written
                   notice to Lessor. Upon request by Lessor, Lessee agrees to
                   furnish proof of insurance coverage, including a certificate
                   of insurance and a copy of the policy. If Lessee fails to
                   provide Lessor with such evidence, then Lessor will have the
                   right, but not the obligation, to have such insurance
                   protecting Lessor placed at Lessee's expense. Lessee's
                   expense shall include a full premium paid for such insurance
                   and any customary charges, costs or fees of Lessor. Lessee
                   agrees to pay such amounts in equal installments allocated to
                   each Rent payment (plus interest on such amounts at the
                   lesser of 1.5% per month or the maximum rate allowable under
                   applicable law). Lessee hereby appoints Lessor as its
                   attorney-in-fact to make any claim, receive payment or
                   execute or endorse all documents, checks or drafts for loss
                   or damage or return of any premium under such insurance and
                   to apply any such amounts to satisfy Lessee's obligations
                   under this Master Agreement or any Lease.

              11.       RISK OF LOSS. In the event of any Casualty, on the next
                   Rent payment date Lessee shall pay Lessor the Stipulated Loss
                   Value. Upon Lessor's full receipt of such Stipulated Loss
                   Value, the applicable Schedule shall terminate, and except as
                   provided in Section 21, Lessee shall be relieved of all
                   obligations under the applicable Schedule, and Lessor shall
                   transfer all its interest in the Equipment to Lessee "AS IS,
                   WHERE IS," and without any warranty, express or implied from
                   Lessor, other than the absence of any liens or claims by,
                   through, or under Lessor. In the event of a partial
                   destruction of or repairable damage to any Equipment, the
                   Lease shall continue with respect to such Equipment and
                   Lessee shall at its expense promptly cause such Equipment to
                   be repaired to a condition acceptable to Lessor. There shall
                   be no abatement of Rent in any such event. Lessee shall
                   immediately notify Lessor of any Casualty or partial
                   destruction or damage to any Equipment.




                                      -8-


              12.       TAXES. On behalf of Lessee Lessor shall file and pay all
                   Impositions now or hereafter imposed or assessed by any
                   foreign, federal, state or local government upon the
                   purchase, ownership, delivery, installation, leasing, rental,
                   use or sale of the Equipment, or the Rent or other charges
                   payable hereunder, whether assessed on Lessor or Lessee. As
                   additional Rent, Lessee shall reimburse Lessor for all
                   Impositions, together with any penalties or interest in
                   connection therewith attributable to Lessee's acts or failure
                   to act, excepting only any Imposition on or measured by the
                   net income of Lessor.

              13.       INDEMNITY. Lessee shall indemnify, defend and hold
                   harmless Lessor, its agents and assignees, from and against
                   any and all Claims, arising, directly or indirectly, out of
                   or connected with any matter involving this Master Agreement,
                   the Equipment or any Lease, including but not limited to: (a)
                   the selection, manufacture, purchase, acceptance, rejection,
                   ownership, delivery, lease, possession, maintenance, use,
                   condition, return or operation of the Equipment; (b) any
                   breach by Lessee of any representation, warranty or covenant
                   hereunder or any other Transaction Document; (c) any latent
                   defects or other defects in any Equipment, whether or not
                   discoverable by Lessor or by Lessee; (d) any patent,
                   trademark or copyright infringement; and (e) the condition of
                   any Equipment arising or existing during Lessee's use.
                   Notwithstanding the foregoing, Lessee shall have no indemnity
                   obligation with respect to any Claims which arise solely out
                   of the gross negligence or willful misconduct of Lessor.

              14.       DISCLAIMER OF WARRANTIES AND LESSEE WAIVERS. LESSEE
                   LEASES THE EQUIPMENT FROM LESSOR "AS IS" AND "WHERE IS."
                   LESSEE HEREBY AGREES THAT: EXCEPT AS TO QUIET ENJOYMENT,
                   LESSOR MAKES ABSOLUTELY NO WARRANTIES, EXPRESS OR IMPLIED TO
                   LESSEE; LESSOR SHALL NOT BE LIABLE FOR ANY FAILURE OF ANY
                   EQUIPMENT OR ANY DELAY IN ITS DELIVERY OR INSTALLATION OR ANY
                   BREACH OF ANY WARRANTY THAT SELLER MAY HAVE MADE; LESSEE HAS
                   SELECTED ALL EQUIPMENT WITHOUT LESSOR'S ASSISTANCE; LESSOR IS
                   NOT A MANUFACTURER OF ANY OF THE EQUIPMENT; LESSOR SHALL HAVE
                   NO LIABILITY TO LESSEE, LESSEE'S CUSTOMERS, OR ANY THIRD
                   PARTIES FOR ANY DIRECT, INDIRECT, SPECIAL OR CONSEQUENTIAL
                   DAMAGES ARISING OUT OF THIS AGREEMENT OR ANY SCHEDULE OR
                   CONCERNING ANY EQUIPMENT, OR FOR ANY DAMAGES BASED ON STRICT
                   OR ABSOLUTE TORT LIABILITY OR LESSOR'S NEGLIGENCE; LESSEE'S
                   SOLE RECOURSE FOR



                                      -9-


                   ANY AND ALL CLAIMS AND WARRANTIES RELATING TO THE EQUIPMENT
                   SHALL BE AGAINST SELLER. Lessor hereby assigns to Lessee for
                   the Applicable Term the right to enforce, provided that no
                   Default then exists under this Master Agreement or any Lease
                   and such enforcement is pursued in Lessee's name, any
                   representations, warranties and agreements made by the
                   Supplier pursuant to the Purchase Documents, and Lessee may
                   retain any recovery resulting from any such enforcement
                   efforts. LESSEE WAIVES ANY AND ALL RIGHTS AND REMEDIES
                   CONFERRED UPON A LESSEE BY ARTICLE 2A (CALIFORNIA COMMERCIAL
                   CODE DIVISION 10) OF THE UNIFORM COMMERCIAL CODE (INCLUDING
                   LESSEE'S RIGHTS, CLAIMS AND DEFENSES UNDER UCC ARTICLE 2A
                   SECTIONS 508-522) AND ANY RIGHTS NOW OR HEREAFTER CONFERRED
                   BY STATUTE OR OTHERWISE THAT MAY LIMIT OR MODIFY LESSOR'S
                   RIGHTS AS DESCRIBED IN THIS SECTION OR OTHER SECTIONS OF THIS
                   MASTER AGREEMENT.

              15.       LESSEE WARRANTIES. Lessee represents, warrants and
                   covenants to Lessor that: (a) all equipment is leased for
                   business purposes only and not for personal, family or
                   household purposes; (b) Lessee is duly organized, validly
                   existing and in good standing under applicable law; (c)
                   Lessee has the power and authority to enter into the
                   Transaction Documents; (d) the Transaction Documents are
                   enforceable against Lessee in accordance with their terms and
                   do not violate or create a default under any instrument or
                   agreement binding on Lessee; (e) there are no pending or
                   threatened actions or proceedings before any court or
                   administrative agency which could have a material adverse
                   effect on Lessee or any Transaction Document, unless such
                   actions are disclosed to Lessor and consented to in writing
                   by Lessor; (f) Lessee shall comply in all material respects
                   with all laws and regulations the violation of which could
                   have a material adverse effect upon the Equipment or Lessee's
                   performance of its obligations under any Transaction
                   Document; (g) each Transaction Document shall be effective
                   against all creditors of Lessee under applicable law,
                   including fraudulent conveyance and bulk transfer laws, and
                   shall raise no presumption of fraud; (h) financial statements
                   and other related information furnished by Lessee shall be
                   prepared in accordance with generally accepted accounting
                   principles and shall fairly present Lessee's financial
                   position as of the dates given on such statements; (i) Lessee
                   shall furnish Lessor with its financial statements certified
                   by an officer of Lessee on a monthly basis (on a quarterly
                   basis if Lessee shall consummate an initial public offering
                   of its common stock) within thirty (30) days of the end of
                   each month (after the end of each quarter if such initial



                                      -10-


                   public offering occurs), and audited financial statements on
                   an annual basis within 90 days of the end of each fiscal
                   year, opinions of counsel, resolutions, and such other
                   information and documents as Lessor may reasonably request;
                   and (j) all Equipment is tangible personal property and shall
                   not become a fixture or real property under Lessee's use
                   thereof. Lessee shall be deemed to have reaffirmed the
                   foregoing warranties each time it executes any Transaction
                   Document.

              16.       DEFAULT. Any of the following shall constitute a Default
                   under this Master Agreement and all Leases: (a) Lessee fails
                   to pay any Rent payment or any other amount payable to Lessor
                   hereunder when due; or (b) Lessee commits a material default
                   under or a material breach of any of the other terms and
                   conditions of any Material Agreement; or (c) any material
                   representation or warranty made by Lessee in a Material
                   Agreement proves to be incorrect in any material respect when
                   made or reaffirmed; or (d) Lessee becomes insolvent or fails
                   generally to pay its debts as they become due; or (e) the
                   Equipment is levied against, seized or attached and the same
                   is not bonded against, released or stayed within ten days; or
                   (f) Lessee makes an assignment for the benefit of creditors,
                   whether voluntary or involuntary; or (g) a proceeding under
                   any bankruptcy, reorganization, arrangement of debt,
                   insolvency or receivership law is filed by or against Lessee
                   or Lessee takes any action to authorize any of the foregoing
                   matters and, if filed against Lessee, is not dismissed within
                   30 days; or (h) any letter of credit, guaranty, surety bond
                   or like instrument issued in support of a Lease is revoked,
                   breached, canceled or terminated; or (i) any guarantor,
                   surety or like third-party obligor under this Master
                   Agreement fails to fulfill any of the obligations of Lessor
                   which it agreed to perform; or (j) any breach or default
                   occurs under any of the Loan Documents; or (k) Lessee shall
                   fail to maintain, as of the last day of each calendar month,
                   a ratio of Quick Assets to Current Liabilities of at least
                   2.0 to 1.0.

              17.       REMEDIES. If a Default occurs, Lessor may, in its sole
                   discretion, exercise one or more of the following remedies:
                   (a) terminate this Master Agreement or any Lease; or (b) take
                   possession of, or render unusable, any Equipment wherever the
                   Equipment may be located, without demand or notice, without
                   any court order or other process of law and without liability
                   to Lessee for any damages occasioned by such action, and no
                   such action shall constitute a termination of any Lease; or
                   (c) require Lessee to deliver the Equipment to a location
                   specified by Lessor; or (d) declare the Stipulated Loss Value
                   for any or all Leases to be due and payable as liquidated
                   damages for loss of a bargain and not as a penalty and in
                   lieu of any further Rent payments under the applicable Lease
                   or Leases; or (e)



                                      -11-


                   proceed by court action to enforce performance by Lessee of
                   any Lease and/or to recover all damages and expenses incurred
                   by Lessor by reason of any Default; or (f) terminate any
                   other agreement that Lessor may have with Lessee; or (g)
                   exercise any other right or remedy available to Lessor at law
                   or in equity. Any Rent not received on or before the due date
                   shall bear interest at the lesser of 1.5% per month or the
                   highest interest rate legally permissible. Lessee shall pay
                   Lessor all costs and expenses that Lessor may incur to
                   maintain, safeguard or preserve the Equipment, and other
                   expenses incurred by Lessor in enforcing any of the terms,
                   conditions or provisions of this Agreement (including
                   reasonable legal fees and collection agency costs). Upon
                   repossession or surrender of any Equipment, Lessor shall
                   lease, sell or otherwise dispose of the Equipment in
                   compliance with applicable law and apply the net proceeds
                   thereof (after deducting all expenses, including reasonable
                   legal fees and costs, incurred in connection therewith) to
                   the amounts owed to Lessor hereunder; provided, however, that
                   Lessee shall remain liable to Lessor for any deficiency that
                   remains after any sale or lease of such Equipment. These
                   remedies are cumulative of every other right or remedy given
                   hereunder or now or hereafter existing at law or in equity or
                   by statute or otherwise, and may be enforced concurrently
                   therewith or from time to time.

              18.       PERFORMANCE OF LESSEE'S OBLIGATIONS. If Lessee fails to
                   perform any of its obligations hereunder, Lessor may perform
                   any act or make any payment that Lessor deems reasonably
                   necessary for the maintenance and preservation of the
                   Equipment and Lessor's interests therein; provided that the
                   performance of any act or payment by Lessor shall not be
                   deemed a waiver of, or release Lessee from, the obligation at
                   issue. All sums so paid by Lessor, together with expenses
                   (including reasonable legal fees and costs) incurred by
                   Lessor in connection therewith, shall be considered Rent
                   hereunder, will bear interest at the lesser of 1.5% per month
                   or the highest interest rate legally permissible, and shall
                   be, without demand, immediately due and payable to Lessor by
                   Lessee.

              19.       ASSIGNMENT. Lessor may assign, pledge, transfer,
                   mortgage or otherwise convey any of its interest in this
                   Master Agreement, any Lease, Schedule or Equipment, in whole
                   or in part, without notice to or the consent of Lessee. If
                   any Lease is assigned, Lessee shall: (a) unless otherwise
                   specified by Lessor and Assignee, pay all amounts due under
                   the applicable Lease to such Assignee, notwithstanding any
                   defense, setoff or counterclaim whatsoever that Lessee may
                   have against Lessor or Assignee, all of which are hereby
                   waived by Lessee as to any Assignee; (b) not require the
                   Assignee to perform any obligations of



                                      -12-


                   Lessor, other than those that are expressly assumed in
                   writing by such Assignee; and (c) execute such
                   acknowledgments thereto as may be requested by Lessor. It is
                   further agreed that: (x) each Assignee shall be entitled to
                   all of Lessor's rights, powers and privileges under the
                   applicable Lease, to the extent assigned; (y) any Assignee
                   may reassign its rights and interests under the applicable
                   Lease with the same force and effect as the assignment
                   described herein; and (z) any payments received by the
                   Assignee from Lessee with respect to the assigned Lease
                   shall, to the extent thereof, discharge the obligations of
                   Lessee to Lessor with respect to the assigned Lease. Lessee
                   acknowledges that any assignment or transfer by Lessor or any
                   Assignee will not materially change Lessee's obligations
                   under the assigned Lease. Without Lessor's prior written
                   consent, Lessee shall not assign this Master Agreement or any
                   Lease or assign its rights in or sublet the Equipment or any
                   interest therein.

              20.       FURTHER ASSURANCES. Lessee shall promptly execute and
                   deliver to Lessor such further documents and take such
                   further action as Lessor may require in order to more
                   effectively carry out the intent and purpose of this Master
                   Agreement and any Lease, including executing and delivering
                   any and all financing statements which Lessor may request.
                   Upon demand, Lessee will promptly reimburse Lessor for any
                   filing or recording fees or expenses (including reasonable
                   legal fees and costs) incurred by Lessor in perfecting or
                   protecting its interests in the Equipment.

              21.       SURVIVAL. All representations, warranties and covenants
                   made by Lessee hereunder shall survive the termination of
                   this Agreement and shall remain in full force and effect. All
                   of Lessor's rights, privileges and indemnities, to the extent
                   they are fairly attributable to events or conditions
                   occurring or existing on or prior to the termination of this
                   Agreement, shall survive such termination and be enforceable
                   by Lessor and Lessor's successors and assigns.

              22.       WAIVER OF JURY TRIAL.  LESSEE AND LESSOR HEREBY
                   EXPRESSLY WAIVE ANY RIGHT TO DEMAND A JURY TRIAL WITH RESPECT
                   TO ANY ACTION OR PROCEEDING INSTITUTED BY LESSOR OR LESSEE IN
                   CONNECTION WITH THIS MASTER LEASE OR ANY LEASE OR SCHEDULE.

              23.       CAPTIONS; COUNTERPARTS; LESSOR'S AFFILIATES. The
                   captions contained in this Agreement are for convenience only
                   and shall not affect the interpretation of this Master
                   Agreement. Only the Original shall be marked "Original," and
                   all other counterparts of the Schedule


                                      -13-


                   shall be marked as, and shall be, duplicates. To the extent
                   that any Schedule constitutes chattel paper (as such term is
                   defined in the Uniform Commercial Code in effect in the
                   applicable jurisdiction), no security interest in such
                   Schedule may be created through the transfer or possession of
                   any counterpart other than the Original.

              24.       MISCELLANEOUS. This Master Agreement and each Lease
                   hereunder shall be governed by the internal laws (as opposed
                   to conflicts of law provisions) of the state of California.
                   If any provision of this Master Agreement or any Schedule
                   shall be prohibited by or invalid under any law, such
                   provision shall be ineffective only to the extent of such
                   prohibition or invalidity, without invalidating the remainder
                   of such provision or the remaining provisions of this Master
                   Agreement or any Lease. Lessor and Lessee consent to the
                   jurisdiction of any local, state or federal court located
                   within the County of Santa Clara, State of California, and
                   waive any objection relating to improper venue or forum non
                   conveniens to the conduct of any proceeding in any such
                   court. This Agreement and the other Transaction Documents
                   constitute the entire agreement between Lessor and Lessee
                   relating to the leasing of the Equipment, and supersede all
                   prior agreements relating thereto, whether written or oral,
                   and may not be amended or modified except in a writing signed
                   by the parties hereto. Any failure of Lessor to require
                   strict performance by Lessee, or any written waiver by Lessor
                   of any provision hereof, shall not constitute consent or
                   waiver of any other breach of the same or any other provision
                   hereof.

              IN WITNESS WHEREOF, LESSOR AND LESSEE HAVE EXECUTED THIS MASTER
AGREEMENT AS OF THE DATE SPECIFIED.

LESSEE                              LESSOR

BREAKAWAY SOLUTIONS INC.                  SILICON VALLEY BANK



By: /s/ Kevin Comerford             By: /s/ Doug Marshall
   ---------------------------         -----------------------

Title: Chief Financial Officer      Title: Vice President
      ------------------------            --------------------



                                      -14-




                       SCHEDULE TO MASTER LEASE AGREEMENT

SCHEDULE NUMBER
                ------

              Silicon Valley Bank ("Lessor") and Breakaway Solutions Inc.
("Lessee") are entering into this Schedule Number ____ as of __________, 1999,
in reference and as parties to that certain Master Lease Agreement, Lease Number
__________ (the "Master Agreement"). This Schedule and the Master Agreement
together comprise a separate Lease between the parties. The terms and conditions
of the Master Agreement are hereby incorporated by reference into this Schedule.
All initially-capitalized terms not defined in this Schedule shall have the
meanings assigned to them in the Master Agreement. In the event of any conflict
between the terms of the Master Agreement and this Schedule, the provisions of
this Schedule shall govern.

              1.        LEASE OF EQUIPMENT. Lessor agrees to lease to Lessee and
                   Lessee agrees to lease from Lessor the Equipment set forth in
                   this Schedule. This Lease will be governed by the Master
                   Agreement and this Schedule.

              2.        EQUIPMENT DESCRIPTION. Computer equipment, printers,
                   servers and/or software which are acceptable to Lessor.

              3.        Schedule Commitment Amount. $4,000,000, $2,000,000 of
                   which is currently available to Lessee, the other $2,000,000
                   of which shall be available to Lessee only upon the
                   consummation by Lessee of an initial public offering of the
                   stock of Lessee or the receipt by Lessee of not less than
                   $10,000,000 of new equity funds.

              4.        INITIAL TERM. The Initial Term shall commence on the
                   first payment date ("First Payment Date") which shall be the
                   earlier of (i) the first day of a calendar month following
                   the month in which the Lessee has fully utilized the Schedule
                   Commitment Amount, provided that if Lessee delivers an
                   Acceptance certificate on the first day of a calendar month
                   and such Acceptance Certificate results in full utilization
                   of the Schedule Commitment Amount, that date shall be deemed
                   such first day of a calendar month or (ii) in any event no
                   later than the Cut-off Date. The Initial Term for software
                   leased under this Schedule shall be 36 months and the Initial
                   Term for all other Equipment leased under this Schedule shall
                   be 36 months.

              5.        INTERIM RENT. Lessee shall pay to Lessor on the first
                   day of each calendar month, in arrears, Interim Rent payments
                   for each day during the period from and including the
                   Acceptance Date through and including the last day of the
                   calendar month prior to the First Payment


                                      -1-


                   Date. For purposes of this Schedule, "Interim Rent" shall be
                   an amount accruing on a daily basis equal to 0.0330% of the
                   amount drawn under this Schedule (as set forth in the
                   applicable Equipment Annex __).

              6.        RENT PAYMENTS. Lessee shall pay Lessor, in advance, on
                   the first day of each month the Rent payment for the Initial
                   Term. The first monthly Rent payment shall be due on the
                   First Payment Date. For purposes of this Schedule, (i) the
                   applicable monthly Rent payment for software financed under
                   this Schedule shall be _____% of the aggregate cost of such
                   software leased under the Equipment Annexes and (ii) the
                   applicable monthly Rent payment for all other Equipment
                   leased under this Schedule shall be _____% of the aggregate
                   cost of such Equipment financed under the Equipment Annexes.
                   Lessor's obligation to purchase and lease the Equipment is
                   subject to the Acceptance Date being on or before the Cut-Off
                   Date set forth in this Schedule.

              7.        CUT-OFF DATE.  December 30, 1999.

              8.        END OF TERM PAYMENT. See Rider 1 for provisions
                   regarding payment at the end of the term of this Lease.

              9.        PURCHASE, RENEWAL AND RETURN. See Rider 1 for provisions
                   regarding purchase, renewal and return of the Equipment.

              10.       STIPULATED LOSS VALUE. See Rider 1 for provisions
                   regarding the Stipulated Loss Value of the Equipment.

              11.       COUNTERPARTS; ONE ORIGINAL; CHATTEL PAPER SECURITY
                   INTEREST. Only the Original, including Rider 1 attached
                   hereto and incorporated herein by reference, shall be marked
                   "Original," and all other counterparts hereof shall be marked
                   as, and shall be, duplicates. To the extent that this
                   Schedule constitutes chattel paper (as such term is defined
                   in the Uniform Commercial Code in effect in the applicable
                   jurisdiction), no security interest in this Schedule may be
                   created through the transfer or possession of any counterpart
                   other than the Original.

              IN WITNESS WHEREOF, LESSOR AND LESSEE HAVE EXECUTED THIS
SCHEDULE AS OF THE DATE SPECIFIED.

LESSEE                              LESSOR

BREAKAWAY SOLUTIONS INC.                 SILICON VALLEY BANK



                                      -2-




By:                                 By:
   ------------------------            -------------------------
Title:                              Title:
      ---------------------               ----------------------



                                      -3-




                               EQUIPMENT ANNEX __

              This Equipment Annex ___to Schedule Number ___________ (the
"Schedule") to the Master Lease Agreement between Silicon Valley Bank ("Lessor")
and Breakaway Solutions Inc. ("Lessee") is attached to and made part of the
Schedule.

              1.       Total Cost. The Equipment acquisition cost including
                   such shipping, delivery, installation and other charges as
                   Lessor shall have approved: $_________________.



                                      -4-