Alamo Rent A Car is a car rental service located in the United States. The Alamo Rent A Car headquarters are in Clayton, Missouri. There are branches not only in North America, but also in South America, Europe, Africa and Oceania. This company was founded in the year 1974 in Orlando, Florida. Their parent company is Enterprise Holdings, making them one of the largest rental car companies to be found in North America. They offer easy-to-make reservations, last minute deals, specials, a members club and more. They are one of the top-rated rental car companies in America.