An FBO stands for Fixed Base Operator (FBO). FBOs operate like private terminals and facilitate private jet and charter operations. Commercial companies are given access by an airport to work on the grounds and provide flight services, fuel, parking, and hangar space. FBOs offer three tiers that provide different accommodations depending on the amount of traffic and size of the airport, including pilot lounges, restrooms and shower facilities, catering, aerial photography, parking, pilot instruction, private jet charter, and much more. Smaller and less busy airports might only offer basic amenities, while more significant, commercial airports have a full suite of extras, like waiting rooms, in-flight catering, and other conveniences.