Global Reservation Systems was the travel industry’s first internet based Global Distribution System (GDS). In partnership wi ... th Galileo International (AKA Travelport) GRS provided real-time GDS content to the small agency, leisure agent, and home-based agency community. Based in Corte Madera, CA with a technical operations center in Sausalito, CA GRS Network also launched the travel industry’s first internet based tour (Tour Expert™) and cruise (Cruise Expert™) booking platforms. read more