Here is a list of reputable car rental services along with their websites for booking:

Alamo: https://www.alamo.com

Enterprise: https://www.enterprise.com

National: https://www.nationalcar.com

Hertz: https://www.hertz.com

Avis: https://www.avis.com

Budget: https://www.budget.com

SIXT:https://www.sixt.com

All these companies operate from the consolidated Rental Car Center at 17330 Palmetto Pines, Houston, TX 77032, which is accessible via free shuttle buses from all terminals at the airport. Shuttles run every 5 minutes between 7:00 a.m. and 11:00 p.m., and every 10–15 minutes between 11:00 p.m. and 7:00 a.m. For international arrivals at Terminal D, proceed through Customs & Immigration to Terminal E to access the shuttle service.

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