EXHIBIT 99.02
                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Atlantic Data Services, Inc. (the
"Company") on Form 10-K for the year ending March 31, 2003 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, Paul K.
McGrath, Senior Vice President and Chief Financial Officer of the Company,
certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906
of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1)      The Report fully complies with the requirements of Section 13(a) or
         15(d) of the Securities Exchange Act of 1934; and

(2)      The information contained in the Report fairly presents, in all
         material respects, the financial condition and results of operations of
         the Company.

/s/ Paul K. McGrath
- ------------------------------------------------
Paul K. McGrath
Senior Vice President and Chief Financial
 Officer (Principal Financial and Accounting
 Officer)
June 25, 2003