EXHIBIT 21.1 SUBSIDIARIES OF LAIDLAW INTERNATIONAL, INC. The following list sets forth subsidiaries of Laidlaw International, Inc. and the jurisdiction in which each subsidiary is organized. Parent subsidiary relations are indicated by indentations. Unless otherwise indicated, 100% of the voting securities of each subsidiary is owned by the indicated parent of such subsidiary. JURISDICTION IN NAME WHICH ORGANIZED - ---- --------------- Laidlaw International, Inc. Delaware Laidlaw Transportation, Inc. Delaware Laidlaw Transit Holdings, Inc. Delaware Laidlaw Transit, Inc. Delaware Allied Bus Sales, Inc. Indiana Chatham Coach Lines, Inc. Delaware Laidlaw Transit Management Company, Inc. Pennsylvania S.C. Food Services (U.S.A.), Inc. Delaware Laidlaw Transit Services, Inc. Delaware SuTran, Inc. South Dakota Van Tran of Tucson, Inc. Arizona Safe Ride Services, Inc. Arizona Laidlaw Medical Holdings, Inc. Delaware American Medical Response, Inc. Delaware [subsidiaries on separate page] EmCare Holdings Inc.& subsidiaries Delaware EmCare, Inc. Delaware Spectrum Emergency Care of Delaware, Inc. Delaware Laidlaw Transportation Holdings, Inc. Delaware Greyhound Lines, Inc. Delaware [subsidiaries on separate page] Hotard Coaches, Inc. Louisiana Gray Line of New Orleans, Inc. (50%) Louisiana Mississippi Coast Limousine, Inc. Mississippi Interstate Leasing, Inc. Mississippi Concorde Adjusters, Inc. Delaware Laidlaw One, Inc. Delaware Laidlaw Transportation Management, Inc. Ohio National Insurance and Indemnity Corporation Vermont Laidlaw USA, Inc. New York Laidlaw International Finance Corporation Ireland American National Insurance Corporation Barbados First Transportation Indemnity Ltd. Barbados FTI Management Ltd. Barbados Greyhound Canada Transportation Corp. Ontario A-1 Bus Line Pick-Up Ltd. British Columbia Gray Coach Travel Inc. Ontario 1153931 Ontario Limited Ontario Greyhound Courier Express Ltd. British Columbia 2026921 Ontario Limited Ontario 2026922 Ontario Limited Ontario 3554384 Canada Inc. Canada 3765105 Canada Inc. Canada Voyageur Corp. Canada Marguerite Tours Ltd. British Columbia The Gray Line of Victoria Ltd. Canada British Double Decker Tours Ltd. British Columbia Victoria Tours Limited British Columbia Northland Bus Lines Ltd. British Columbia 518841 Alberta Inc. Alberta 367756 Alberta Inc. Alberta The Victoria Trolley Company Ltd. British Columbia Gray Line of Vancouver Holdings Ltd. Canada Gray Line Vacations Ltd. British Columbia GCTC Leasing Ltd. Alberta Penetang-Midland Coach Lines Limited Ontario Laidlaw Transit Ltd. Ontario Autobus Transco (1988) Inc. Quebec Capital Bus Sales (1988) Limited Ontario Manhattan Equipment Supply Company Limited Ontario 331001 Alberta Ltd. Alberta Barrel Taxi Ltd. Alberta Checker Cabs (Edmonton) Inc. Alberta 3524302 Canada Inc. Canada Athletic Injury Management Services Inc. Canada MedTrans Medical Transportation Ltd. Canada Beaverton & District Ambulance Services Ltd. Ontario Book Ambulance Service Ltd. Ontario Brant County Ambulance Service Limited Ontario 501781 Ontario Limited Ontario Canadian Medical Response (Nova Scotia) Ltd. Nova Scotia Superior Ambulance (1986) Limited Ontario N.N. Lee K. Investments Ltd. Alberta C. Seeley's Bus Lines Ltd. Ontario S.C. Food Services (Canada) Inc. Ontario Scott's Hospitality Limited England [GREYHOUND LINES, INC.] Atlantic Greyhound Lines of Virginia, Inc. Virginia Greyhound de Mexico, S.A. de C.V. (99 %) Mexico Greyhound Xpress Delivery, L.L.C. Delaware LSX Delivery, L.L.C. Delaware Wilmington Union Bus Station Corporation North Carolina GLI Holding Company Delaware Carolina Coach Company Virginia Seashore Transportation Company North Carolina On Time Delivery Service, Inc. Minnesota Rockford Coach Lines, L.L.C. Delaware Texas, New Mexico, & Oklahoma Coaches, Inc. Texas T.N.M. & O Tours, Inc. Texas Valley Garage Company Texas Valley Transit Co., Inc. Texas Vermont Transit Co., Inc. Vermont Sistema Internacional de Transporte de Autobuses, Inc. Delaware [AMERICAN MEDICAL RESPONSE, INC.] Hank's Acquisition Corp. Alabama Fountain Ambulance Service, Inc. Alabama MedLife Emergency Medical Service, Inc. Alabama Florida Emergency Partners, Inc. Texas American Medical Response Northwest, Inc. Oregon American Medical Response West California Metropolitan Ambulance Service California American Medical Response of Inland Empire California Desert Valley Medical Transport, Inc. California Golden Gate Associates California San Francisco Ambulance Service, Inc. California Springs Ambulance Service, Inc. California American Medical Response of Colorado, Inc. Delaware International Life Support, Inc. Hawaii Medevac MidAmerica, Inc. Missouri Medevac Medical Response, Inc. Missouri American Medical Response of Oklahoma, Inc. Delaware American Medical Response of Texas, Inc. Delaware Kutz Ambulance Service, Inc. Wisconsin American Medical Response Holdings, Inc. Delaware American Medical Response Management, Inc. Delaware Regional Emergency Services LP Florida Mobile Medic Ambulance Service, Inc. Delaware Metro Ambulance Service, Inc. Delaware Metro Ambulance Service (Rural), Inc. Delaware Medic One Ambulance Services, Inc. Delaware American Medical Response of South Carolina, Inc. Delaware American Medical Response of North Carolina, Inc. Delaware American Medical Response of Georgia, Inc. Delaware Troup County Emergency Medical Services, Inc. Georgia Randle Eastern Ambulance Service, Inc. Florida Medi-Car Systems, Inc. Florida Medi-Car Ambulance Service, Inc. Florida American Medical Response of Tennessee, Inc. Delaware Physicians & Surgeons Ambulance Service, Inc. Ohio American Medical Response of Illinois, Inc. Delaware Midwest Ambulance Management Company Delaware Paramed, Inc. Michigan Mercy Ambulance of Evansville, Inc. Indiana Tidewater Ambulance Service, Inc. Virginia American Medical Response of Connecticut, Incorporated Connecticut American Medical Response of Massachusetts, Inc. Massachusetts American Medical Response Mid-Atlantic, Inc. Pennsylvania American Medical Response Delaware Valley, L.L.C. Delaware Ambulance Acquisition, Inc. Delaware Metro Ambulance Services, Inc. Georgia Broward Ambulance, Inc. Delaware Atlantic Ambulance Services Acquisition, Inc. Delaware Atlantic/Key West Ambulance, Inc. Delaware Atlantic/Palm Beach Ambulance, Inc. Delaware Seminole County Ambulance, Inc. Delaware LifeFleet Southeast, Inc. Florida American Medical Pathways, Inc. Delaware ProvidaCare, L.L.C. Texas Adam Transportation Service, Inc. New York Associated Ambulance Service, Inc. New York Park Ambulance Service Inc. New York Five Counties Ambulance Service, Inc. New York Sunrise Handicap Transport Corp. New York Laidlaw Medical Transportation, Inc. Delaware Mercy, Inc. Nevada American Investment Enterprises, Inc. Nevada LifeCare Ambulance Service, Inc. Illinois TEK, Inc. Illinois Mercy Life Care California Hemet Valley Ambulance Service, Inc. California American Medical Response of Southern California California Medic One of Cobb, Inc. Georgia Puckett Ambulance Services, Inc. Georgia