Advantage Rent-A-Car - offices throughout the Western U.S. and Mexico.

Alamo Rent A Car - includes online reservations, national and international locations, fleet information, and weekly specials. A Vanguard Car Rental USA Inc. company.

Avis Rent a Car - features worldwide online reservations for car rentals, pricing, and a guide for renters.

Blue Travel - renting motorhomes, cars, and 4WD trucks in North America, Australia, New Zealand, and Southern Africa.

BritainCar - offers rental cars in the U.K., booked from the USA.

Britz Campervan Rentals - specializes in recreational vehicle rentals, campervan hire, rental car, and motorhome rentals. Service in Australia, New Zealand, and South Africa.

Budget Rent a Car - offers vehicle rentals, including cars, trucks, vans, and SUVs. Highlights rates, reservations, locations, and programs.

CarJet - offers car rentals in Spain, Portugal, and the U.K.

Dollar Rent A Car - rents vehicles to business and leisure customers and offers association programs, corporate accounts, and franchise opportunities.

Dollar Thrifty Automotive Group (NYSE: DTG ) - operates the Dollar and Thrifty vehicle rental systems.

Enterprise Rent-A-Car - offering car rentals from economy to luxury, minivan to cargo van, and pickup trucks, with locations throughout the U.S., Canada, and the U.K.

Europcar Australia - offering truck and car hire across Australia, including a range of vehicles from standard to prestige car rentals.

Europcar International - provides services in Europe, the Middle East, Africa, Asia, Australia, Mexico, Central America, and the Caribbean.

Excellence Luxury Car Rental - offices in Miami, Palm Beach, Paris, and Cannes.

Exotic Car Express - offers SUV, exotic, luxury, and specialty car rentals with locations across the United States and Europe.

Ford Rental System - car rental services across the United States. Features search for nearest dealer and location.

Hertz - official site from Ford Motor Company. Includes a fleet guide with details on their vehicles and a worldwide directory of car rental offices.

National Car Rental - features online reservations and information about their corporate travel programs and travel partners. Includes a world wide location search.

Rent-A-Wreck of America - worldwide used car rental company.

Rental Car Momma - offers discount codes and coupons for rental cars worldwide.

Specialty Car Rental - luxury and sports car rental with multiple locations.

Thrifty Car Rental - offers cars in airport and local car rental markets. Provides specials, partners, rates, and franchise opportunity information.