Gray Line Worldwide

Gray Line Worldwide is an international sightseeing company that consist of local sightseeing operator around the world. The company was founded in 1910 and operates worldwide through independent operators it calls "licensees" with a presence in most of the world's most popular sightseeing destinations. Gray Line does not provide sightseeing services directly, but rather provides its brand, promotional services and booking systems to licensees. Gray Line is also the largest direct supplier of destination services to online travel sellers, wholesalers and travel agents.