1 EXHIBIT 21 Subsidiaries of the Company Servantis Systems Holdings, Inc., a Delaware corporation; Servantis Systems, Inc., a Georgia corporation; Servantis Services, Inc., a Georgia corporation; CheckFree Software Solutions, Inc., a Delaware corporation; Security APL, Inc., an Illinois corporation; Bow Tie Systems, Inc., an Illinois corporation; CheckFree Services Corporation, a Delaware corporation; CheckFree Investment Corporation, a Delaware corporation; and RCM Systems, Inc., a Wisconsin corporation.