What are the top GDS providers for travel start-up?

Question

Answer

Amadeus, Galileo and Sabre are the 3 distribution systems available globally.

Answer

The four largest GDSs are: Amadeus, Sabre, Travelport (which is the parent company of Apollo/Galileo and Worldspan). Literally hundreds of airlines can be logged into a single GDS system, to which thousands upon thousands of travel agents globally have access.

Techtalks: Traveltech

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What are the top GDS providers for travel start-up?