1 EXHIBIT 23.01 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-53805 and 333-86997) of Atlantic Data Services, Inc. of our report dated April 23, 2001, relating to the financial statements and financial statement schedule, which appears in this Form 10-K. /s/PricewaterhouseCoopers LLP Boston, Massachusetts June 20, 2001