Vanguard Car Rental USA provides car rental services through its subsidiaries, National Car Rental and Alamo Rent A Car. Its National Car Rental subsidiary is a privately held company that offers vehicle rental solutions to airport travelers throughout the United States, Canada, Mexico and the Caribbean, as well as Latin America. The company s subsidiary is a member of the National Business Travelers Association and the American Society of Travel Agents. Vanguard Car Rental USA s other subsidiary, Alamo Rent A Car, is one of the world s largest, privately held rental car companies that provides vehicles and transportation services to businesses and individual customers. The parent company maintains a fleet of more than 50,000 vehicles, including trucks, minivans, convertibles and sport utility vehicles through its subsidiaries.