Executive Officers Robert W. Howe Chief Executive Officer   and Chairman of the   Board of Directors William H. Gallagher President, Chief Operating   Officer, Assistant Clerk   and Director Paul K. McGrath Senior Vice President,   Finance and Administration,   Chief Financial Officer,   Treasurer and Clerk Peter A. Cahill Executive Vice President,   Strategic Development Erik C. Golz Senior Vice President,   Professional Services Thomas P. McCarthy Senior Vice President,   Director, Business Development Isaac H. Naar Senior Vice President,   Director, People Department Board of Directors Robert W. Howe Chairman and Chief   Executive Officer   Atlantic Data Services, Inc. William H. Gallagher President and Chief   Operating Officer,   Assistant Clerk   Atlantic Data Services, Inc. David C. Hodgson Managing Member   General Atlantic Partners, LLC General Partner   General Atlantic Partners, II, LP Lee M. Kennedy Chairman and   Chief Executive Officer   Lee Kennedy Co., Inc. George F. Raymond President and Founder, Retired,   Automatic Business Centers, Inc. Director   BMC Software, Inc.,   Emtec, Inc. and   Docucorp International, Inc. Richard D. Driscoll Director   Hillview Investment Trust and   the Massachusetts Business   Development Corporation Corporate Offices Atlantic Data Services, Inc. One Batterymarch Park Quincy, Massachusetts 02169 Telephone: 617.770.3333 Fax: 617.689.1102 Independent Accountants PricewaterhouseCoopers LLP One Post Office Square Boston, Massachusetts 02109 Corporate Counsel Testa, Hurwitz & Thibeault, LLP High Street Tower 125 High Street Boston, Massachusetts 02110 Shares Traded Nasdaq: ADSC Transfer Agent EquiServe Trust Company, N.A. c/o EquiServe, Inc. 150 Royall Street Canton, Massachusetts 02021 Phone 877.282.1168 www.EquiServe.com Annual Shareholders Meeting The Annual Meeting of Shareholders will be held at 8:30 a.m. on July 25, 2002 at the Boston College Club, 100 Federal Street, Boston, Massachusetts. Shareholder Inquiries Communications concerning transfer requirements, lost certificates and changes of address should be directed to the Registrar and Transfer Agent. Investor Inquiries Analysts, investment professionals, individual investors and members of the press should direct their questions to Investor Relations at Atlantic Data Services' Corporate Offices. Form 10-K Shareholders may obtain, free of charge, a copy of the Company's Annual Report on Form 10-K, filed with the Securities and Exchange Commission, by contacting:   Investor Relations Department   ADS Financial Services Solutions   One Batterymarch Park   Quincy, Massachusetts 02169   617.770.3333   http://www.adsfs.com