Find the cheapest car hire prices
Yes, Hertz is present at Dallas (DFW).
You can find SiXT rent a car at Dallas Fort Worth International (DFW).
Yes, there are companies like Avis, or Carrental that's not located directly at the airport with either drop-off or shuttle service.
You can find Hertz, Sixt, 1stcar, Aco, Car24, Miles, and Alquiler at DFW Airport Airport.