THRIFTY Car Rental Services at Denver Airport. Thrifty Car Rental Established in 1958 as Thrifty Rent a Car System, Inc. and remains until today, one of the largest car rental companies in the world. It is a subsidiary of the Hertz Corporation with headquarters in Estero, Florida. Thrifty, has 5,900 employees in North America, operates in 77. FOX Car Rental Services at Denver Airport Fox Rent A Car, Inc. was founded in 1989, in Los Angeles, as a discount brand catering to airport travelers. Through the coming years the company has enjoyed robust growth and positive operating income. Car rental agencies are located on airport property and provide courtesy shuttle service to and from Jeppesen Terminal. Shuttles pick-up and drop-off from Jeppesen Terminal Level 5, Island 4, outside doors 505-513 (east side) and 504-512 (west side).
