EXHIBIT 21.1 SUBSIDIARIES OF THE COMPANY STATE OF INCORPORATION --------------------------- ---------------------- Mid-States Technical Staffing Services, Inc. Iowa Debbie Temps, Inc. Illinois DuPay Enterprises, Inc. d/b/a ASOSA Personnel Arizona LawStaf, Inc. Georgia Attorneys Per Diem, Inc. Maryland Matthews Professional Employment Specialists, Inc. Illinois Special Counsel International, Inc. New York Computer Professionals, Inc. Florida Bogard Temps, Inc. California Advance/Possis Technical Services, Inc. Minnesota HR Management Services, Inc. Michigan Openware Technologies, Inc. Florida Tekna, Inc. Virginia Goldfarb-Wasson Associates, Inc. d/b/a GW Consulting California GW Temporaries, Inc. California PTA International California Accounting Pros, Inc. f/k/a AS Acquisition Corp. Pennsylvania Excel Temporary Services, Inc. Georgia The McKinley Group, Inc. Virginia Contact Recruiters, Inc. New Hampshire Ovation Technologies, Inc. New Hampshire MGI Services, Inc. Virginia Advantage Personnel Services, Inc. f/k/a/ AC Acquisition Corp. California Project Professionals, Inc. California TempsAmerica, Inc. Delaware Additional Technical Support, Inc. Massachusetts CADSTAR International, Ltd. Massachusetts The Experts, Inc. Massachusetts System Pros, Inc. Massachusetts National Software Associates, Inc. Massachusetts Perspective Technology Corporation Virginia Datacorp Business Systems, Inc. Ohio Staffware, Inc. Texas L & R Temporaries, Inc. Virginia L & R Temporaries Atlanta, Inc. Georgia Berrett Techalliance Corp. Virginia Scientific Staffing, Inc. Pennsylvania Scientific Staffing of Ft. Lauderdale, Inc. Florida Scientific Staffing of Tampa Bay, Inc. Florida Career Horizons Delaware Health Force, Inc. New York Health Force Operating Corp. New York HealthForce Company New York TempForce Company New York Medi-Force, Inc. d/b/a/ Health Force Home Health Care Services New York Programming Enterprises, Inc. d/b/a Mini-Systems Assoc. California Zeitech, Inc. Delaware Professionals for Computing, Inc. d/b/a PFC Incorporated California American Computer Professionals, Inc. Delaware TSG Professional Services, Inc. New Hampshire Contract Staffing Group Inc. d/b/a Computer Consulting Group South Carolina CHI Financial Services, Inc. Delaware Contemporary Graphics Group, Inc. New York EIM Associates, Inc. Florida PL Services, Inc. Delaware Temp Force, Inc. New York CHI Payroll Services, Inc. Delaware Career Horizons Government Services, Inc. New York Staff-Additions, Inc. New York Staffing Resources (SC), Inc. Delaware Temporaries Incorporated D.C. Temps & Co Services, Inc. Delaware Temps & Co. Franchising, Inc. Delaware CHI Services, Inc. Delaware Potomac Personnel Services, Inc. Delaware The Original Tempo Health Power, Inc. New York The Richard Michael Temps, Inc. Delaware Century Temporary Services, Inc. Ohio Dial A Temporary, Inc. Delaware Berger & Co. Delaware Executive Monitors, Inc. Pennsylvania Consultants in Computer Software, Inc. Minnesota Preferred Consulting, Inc. Minnesota Lenco Computer Consulting Massachusetts