KAYAK is a privately owned company headquartered in the US and is a subsidiary of Booking Holdings. Founded in 2004, the company employs approximately 980 individuals. KAYAK operates as a technology, information, and internet company, primarily functioning as a travel search engine that searches other sites to provide travelers with information on flights, hotels, rental cars, and vacation packages. Its offerings include tools and features such as KAYAK Trips, Explore, Price Forecast, an app, and A.I. innovations to facilitate travel planning and trip management. KAYAK is part of a global network encompassing its sister brand OpenTable and a portfolio of travel metasearch brands like Swoodoo, checkfelix, momondo, Cheapflights, Mundi, and HotelsCombined. The company operates sites in more than 70 countries and territories.