Exhibit (21) 	 LIST OF SUBSIDIARIES OF THE HARTFORD STEAM BOILER 		 INSPECTION AND INSURANCE COMPANY* 						 STATE/JURISDICTION OF NAME OF COMPANY INCORPORATION/FORMATION The Allen Insurance Company Bermuda The Boiler Inspection and Insurance Company of Canada (wholly owned by HSB Engineering Insurance Limited) Canada EIG Co. Delaware The Hartford Steam Boiler Inspection and Insurance Company of Connecticut Connecticut The Hartford Steam Boiler Inspection and Insurance Company of Texas Texas Hartford Steam Boiler Inspection Technologies California Hartford Steam Boiler International GmbH Germany Hartford Steam Boiler (Singapore) PTE Ltd. Singapore HSB Associates, Inc. New York HSB Club, Inc. Connecticut HSB Engineering Insurance Limited (wholly-owned by EIG Co.) England HSB Investment Corporation Connecticut HSB Professional Loss Control, Inc. Tennessee HSB Reliability Technologies Corp. Florida Hemisphere Consulting Corp. (wholly-owned by HSB Reliability Technologies Corp.) Florida One State Street Intermediaries (wholly-owned by HSB Associates, Inc.) Connecticut The Polytechnic Club, Inc. Connecticut Radian Corporation Texas Ra-Hart Investment Company Texas Radian International LLC Delaware (40% owned by Radian Corporation)					 * This list omits certain subsidiaries which considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary.