Exhibit 21 EIS INTERNATIONAL, INC. SUBSIDIARIES SUBSIDIARIES STATE OR OTHER JURISDICTION OF INCORPORATION EIS Leasing Corporation Delaware EIS Leasing of Delaware, Inc. Delaware EIS International Services Corp. Virginia Electronic Information Systems Limited United Kingdom EIS Limited United Kingdom Electronic Information Systems International, Inc. Delaware EIS Foreign Sales Corporation U.S. Virgin Islands (St. Thomas) EIS Italia, Sr. L Italy Surefind Information, Inc. Delaware Cybernetics Systems International Corp. Delaware Pulse Technologies, Inc. Virginia