1 EXHIBIT 21 ChoicePoint Inc. Subsidiaries Name of Subsidiary Jurisdiction of Organization Applied BioConcepts Inc. Kansas BTi Inc. Georgia BTi Employee Screening Services, Inc. Texas ChoicePoint Asset Company Delaware ChoicePoint Business and Government Services Inc. Georgia ChoicePoint Capital Corporation Delaware ChoicePoint Direct Inc. Illinois ChoicePoint Health Systems Inc. Kansas ChoicePoint Licensing Company Delaware ChoicePoint Public Records Inc. Georgia ChoicePoint Services Inc. Georgia DataMart Processing Company Georgia EquiSearch Services Inc. Georgia Intellisys, Inc. Georgia I.R.S.C., Inc. California KnowX LLC Georgia National Credit Audit Corporation Illinois National Safety Alliance, Incorporated Tennessee Optimum Graphics Printing, Inc. Illinois Osborn Group Inc. Delaware Osborn Laboratories (Canada) Inc. Canada Patlex Corporation Pennsylvania PRC Corporation Georgia Statewide Data Services, Inc. Florida WinShapes, Inc. Washington