EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT
State (Country) of Name under which Subsidiary does Business Incorporation Aspen Investment Alliance, Inc. Colorado BMS On-Line, Inc. Massachusetts Data-Link Systems, LLC Wisconsin FIserv CIR, Inc. Delaware FIserv Federal Systems, Inc. Delaware FIserv Fresno, Inc. California FIserv Government Services, Inc. Delaware FIserv Joint Venture, Inc. Delaware Fiserv Solutions, Inc. Wisconsin FIserv (Europe) Ltd. United Kingdom FIserv (ASPAC) Pte., Ltd. Singapore Fiserv Australia Pty Limited Australia Pt Fiserv Indonesia Indonesia First Retirement Marketing, Inc. Colorado First Trust Corporation Colorado Information Technology, Inc. Nebraska Lincoln Trust Company Colorado The Affinity Group, Inc. Colorado Fiserv Solutions of Canada Inc. Ontario Fiserv Clearing, Inc. Delaware BHC Investments, Inc. Delaware BHC Trading Corporation Delaware NetVest, Inc. Delaware BHC Securities, Inc. Delaware TradeStar Investments, Inc. Delaware Fiserv Investor Services, Inc. Delaware BHCM Insurance Agency, Inc. Delaware F.T. Agency, Inc. Ohio Tower Agency, Inc. Ohio Fiserv Insurance Agency of Alabama, Inc. Alabama Fiserv Correspondent Services, Inc. Colorado Investment Consulting Group, Inc. Colorado FCS Funding, Inc. Colorado WUB2 Management Company Colorado WUB3 Capital Management, Inc. Colorado WUB4 Capital Partners, LLP Colorado Life Instructors, Inc. New Jersey RK & DR Concepts, Inc. Utah New Benchmark Computer Systems, Inc. Utah Fiserv LeMans, Inc. Pennsylvania Specialty Insurance Service California The Freedom Group, Inc. Iowa LeMans International, Inc. Pennsylvania Specialty Software Service, Inc. California Fiserv Mercosur, Inc. Delaware Fiserv International (Barbados) Limited Barbados
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