Which car rental companies shuttle to the airport from Port of Miami

Which car rental agencies shuttle to the airport for a car rental???

Prices seems less expensive than for the rental agency around the airport.

Alamo, National, Dollar, Thrifty, and Enterprise have free shuttles from the Port Of Miami to the Rental Car Center which is located across from Miami International Airport. Hertz, Avis, and Budget have downtown Miami locations that are very close to the Port Of Miami. There are conflicting reports that the three companies provide free shuttle service to their locations. The only one of the three that I can personally confirm that provides service is Hertz.

This is good to know! I need to reserve a car after our cruise out of Miami. We are driving up to Disney for 5 days after our cruise and will just return the car there. I believe that National and Alamo have locations on the Disney property where we can return our rental. Is it fairly easy to catch a National or Alamo shuttle to the Miami airport to get our car rental?