Alamo Rent a Car
Alamo Rent a Car is a fully owned subsidiary of Enterprise Rent-a-car. Alamo caters to leisure travelers, especially moms. Their main focus is on vacation destinations such as Florida and Hawaii. They typically offer many car rental discount coupons and have very competitive rates, especially in the vacation destinations. Their business model is focused on airports but they do have a few off airport locations.

National Car Rental
National Car Rental is a fully owned subsidiary of Enterprise Rent-a-car. National caters to business travelers and are well known for their Emerald Club. They focus on quality service and quickness of check out. They tend to be more expensive than discount companies but have many coupons and you can often get a great rate through their Emerald Club. Their business model is focused on airports but they do have a few off airport locations.

Thrifty
Thrifty is a wholly owned subsidiary of Dollar Thrifty Automotive Group, Inc. Thrifty caters to cost conscious travelers and focuses on low rates as per their name. Like Alamo they focus on vacation destinations and often have deals for Florida and Hawaii. Their business model is focused on airports but 20% of their locations are off airport.

Dollar Rent a Car
Dollar Rent a Car is a wholly owned subsidiary of Dollar Thrifty Automotive Group, Inc. Dollar caters to cost value conscious travelers and generally have low rates. They often have rate offer specials and destination specials. Their business model is mix between airport and off airport locations. Many of their off airport locations are franchise owned.

Enterprise Rent a Car
Enterprise Rent a Car is a part of the Enterprise group of companies. They are a family owned company and considered the largest car rental company in the world. The main business for Enterprise is insurance replacement with 93% of their locations being local. 7% of Enterprise locations are at airports and they are trying to grow this business. They have low rates and are considered service orientated rather than speed orientated. They do not have a great deal of car rental discounts but the Entertainment book is a good place to check. They are known for picking you up and this has really grown their local business.

Budget Rent a Car
Budget Rent A Car System, Inc is a wholly owned subsidiary of Avis Budget Group, Inc. Budget caters to the budget conscious renter and generally have low rates. They often have rate offer specials and destination specials. Their business model is mix between airport and off airport locations. Many of their off airport locations are franchise owned. The company also operates Budget Truck Rental.

Hertz Rent a Car
Hertz is the largest airport rental company and also promotes their local edition service. Hertz generally have higher rates and promote customer service and support business customers with their #1 club. Hertz have recently moved into the discount market with the introduction of their fully automated Simply Wheelz brand. Simply Wheelz currently only operate off terminal at Orlando International Airport (MCO). This has led to a price war at MCO in recent months.

Avis Rent a Car
Avis Rent A Car System, Inc is a wholly owned subsidiary of Avis Budget Group, Inc. Avis caters to the business traveller and has a reputation for good service and higher prices. They often have rate offer specials and are known for their AWD (Avis Worldwide Discount) codes. Their business model is a mix between airport and off airport locations.