Glossary beginning with G
Global Business Travel Association: formerly the NBTA (National Business Travel Association) and renamed in February 2011. It provides its members (business travel management professionals) with education and information
Global Distribution System - a major electronic worldwide reservation system used by travel agents to book flights, hotels, car rental and other travel services. The major players in this area are Sabre, Amadeus and Travelport (which owns the Galileo and Worldspan GDSs).
Guild of Travel Management Companies - the major UK-based association representing TMCs