TUI AG, together with its subsidiaries, provides tourism services at locations worldwide. The company offers flight booking, hotel accommodation, and other tourism services; and incoming services for tour operators and other services to cruise industry.

TUI AG also owns and operates hotels and resorts, as well as provides its services through online portals. The company operates a fleet of approximately 1,600 travel agencies, 150 aircrafts, 300 hotels with 214,000 beds, and 14 cruise liners. TUI AG is headquartered in Hanover, Germany.