Aviation fuel
Oxygen service
Aircraft parking (ramp or tiedown)
Hangars
Hangar leasing / sales
GPU / Power cart
Passenger terminal and lounge
Aerial tours / aerial sightseeing
Aircraft charters
Aircraft cleaning / washing / detailing
Aircraft parts
Catering
Rental cars
Courtesy transportation
Courtesy cars (free for pilots to use in the local area)
Pilots lounge / snooze room
Public telephone
Computerized weather
Internet access
Restrooms