Exhibit 21
Subsidiaries of the Registrant
3CI Complete Compliance Corporation, a Delaware corporation
American Medical Disposal, Inc., an Oklahoma corporation
BFI Medical Waste, Inc., a Delaware corporation
Biowaste Management Corp., a New York corporation
Bridgeview, Inc., a Pennsylvania corporation
East Coast Medical Waste, Inc., a New Jersey corporation
EnviroClean Management Services, Inc.
EnviroClean Transport Services, Inc.
Enviromed, Inc., a South Carolina corporation
Environmental Health Systems, Inc., a Nebraska corporation
Five Star Waste, Inc., a Florida corporation
Healthcare HazChem Inc.
Ionization Research Co., Inc., a California corporation
Iowa Medical Waste Reduction Center, Inc., an Iowa corporation
Medam B.A. s.r.lL. (Argentina)
Medam S.A. de C.V, a Mexican corporation, and subsidiaries
Medico Environmental Services Corp.
MedSolutions, Inc., a Texas corporation
Med-Tech Environmental, Inc., a Delaware corporation
Med-Tech Environmental (MA), Inc., a Delaware corporation
Micro-Med Industries, Inc., a Florida corporation, and subsidiaries
Midwest Medical Solutions, LLC
Nicklin Associates, Inc., a New York corporation
Positive Impact Waste Servicing, Inc.
Sanford Motors, Inc., a Pennsylvania corporation
SDR Holding Corp., a Florida corporation
SDR NNC, Inc., a Delaware corporation
SharpSolutions, Inc.
ShredSolutions, Inc.
SMI East Coast Medical Waste, Inc., a Pennsylvania corporation
SRCL Limited, an English company
Stericycle Direct Return, Inc., a Florida corporation
Stericycle, Inc., a New Brunswick (Canada) corporation
Stericycle Europe s.a.r.l, a Luxembourg company
Stericycle International, LLC, a Delaware limited liability company
Stericycle International, Ltd., an English company
Stericycle Ireland Limited, an Irish company
Stericycle of Washington, Inc., a Washington corporation
Stericycle of Puerto Rico, Inc., a Puerto Rico corporation
SteriLogic Waste Systems, Inc.
Stroud Properties, Inc., a Delaware corporation
Techen Safety, Inc., an Illinois corporation
The Cardinal Group, Inc.
Universal Solutions International, Inc., a North Carolina corporation, and subsidiaries
White Rose Environmental Limited, an English company