5 Biggest Travel Companies in the World

3. American Express Global Business Travel

American Express Global Business Travel (GBT) is a multinational travel and meetings program management company. American Express maintains a 50% ownership stake after divesting American Express Global Business Travel in 2014. The other 50% is held by a Certares-led investor group. It is  headquartered in Jersey City, New Jersey, US. The company has sales of over $33,7 billion and 18000 employees.

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