Gray Line Worldwide

Founded in 1910, Gray Line Worldwide is one of the world's leaders in sightseeing tours and ground transportation services. The company provides a range of charter and convention services. With a location in Denver, it offers sightseeing tours in more than 150 destinations on six continents. Gray Line Worldwide also organizes several overnight packages and adventure trips. The company conducts approximately 4,000 individual tours for nearly 25 million consumers every year. It organizes city tours, day trips and excursions to architecturally and historically significant sites throughout the world. Gray Line Worldwide has partnerships with ABC Companies, AudioConexus, Holiday Media, Lancer Insurance Company, Motor Coach Industries and Weaver Publications.