Booking Holdings Inc. is the world’s largest online travel agency by sales, providing booking and payment services for hotels and alternative accommodations, flights, rental cars, restaurants, cruises, experiences, and other vacation packages. The company operates a portfolio of well-known travel brands, including Booking.com, Agoda, OpenTable, Rentalcars.com, and Kayak. Transaction fees generated from online bookings make up the majority of its revenue and profits.