EXHIBIT 21 % of Voting Securities Owned by PLACE OF Immediate NAME OF SUBSIDIARY ORGANIZATION 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 Government Services, Inc. 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 Services, Inc. Delaware 100% Wells Fargo Guard Service, Inc. of Florida Florida 100% Wells Fargo Special Services, Inc. Delaware 100% BPS Financial 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. Ontario 100% BW-Canadian Guard Corporation Delaware 100% Burns International Security Services, Ltd. (Ontario) 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 Delivery Services, Inc. Delaware 100% Wells Fargo Alarm Services, Inc. Delaware 100% BW-Chemicals Corporation Delaware 100% Wells Fargo Armored Service Corporation Delaware 100% Wells Fargo Pyro Technologies, Inc. New Jersey 100%