EXHIBIT 21 % Owned Subsidiary By Parent ---------- --------- Baker Insurance Company (Illinois) 100 Borg-Warner Equities Corporation (Delaware) 100 Borg-Warner Equities Corporation of California (California) 100 Borg-Warner Equities of Monterey, Inc. (California) 100 Borg-Warner Insurance Holding Corporation (Delaware) 100 Centaur Insurance Company (Illinois) 100 NAL II, Ltd. (Delaware) 100 Borg-Warner International Corporation (Delaware) 100 Borg-Warner Protective Services Corporation (Delaware) 100 Borg-Warner Information Services, Inc. (Delaware) 100 Burns International Security Services, Inc. (American Samoa) 100 Burns Special Services, Inc. (Delaware) 100 Wells Fargo Guard Service, Inc. of Florida (Florida) 100 Wells Fargo Guard Services, Inc. (Delaware) 100 Wells Fargo Special Services, Inc. (Delaware) 100 BW - Canada Alarm (Wells Fargo) Corporation (Delaware) 100 Wells Fargo Alarm Services of Canada Limited (Ontario) 100 Pony Express Residential Security Ltd. (Canada) (Provincial) 100 BW - Canadian Guard Corporation (Delaware) 100 Burns International Security Services, Ltd. (Ont.) (Ontario) 100 Les Services de Protection Burns International Ltee. (Quebec) 97 BW - Colombia Guard Corporation (Delaware) 100 Newerco, Inc. (Delaware) 100 BII, Inc. (Delaware) 100 Seguridad Burns de Colombia, S.A. (Colombia) 99 The William J. Burns International Detective Agency, Inc. (Delaware) 100 BW - U.K. Guard Corporation (Delaware) 100 Burns International Security Services, Ltd. (U.K.) (United Kingdom) 100 Globe Aviation Services Corporation (Delaware) 100 Globe Airport Security Services, Inc. (Delaware) 100 Globe Aviation Services Corporation of Puerto Rico (Delaware) 100 Globe Aviation Services of Canada, Limited (Ontario) 100 Pony Express Courier Corp. (Delaware) 100 Pony Express Courier Corporation of Texas (Texas) 100 Pyro Chem, Inc. (New Jersey) 100 Wells Fargo Alarm Services, Inc. (Delaware) 100 BPS Financial Services, Inc. (Delaware) 100 BW-Chemicals Corporation 100 Wells Fargo Armored Service Corporation (Delaware) 100 Wells Fargo Armcar, Inc. (Ontario) 100 Wells Fargo Armored Service Corporation of Puerto Rico (Tennessee) 100 Wells Fargo Armored Service Corporation of Texas (Texas) 100