For more than 100 years, Gray Line has been at the center of creating and operating the best traveler experiences in the world’s most sought after sightseeing destinations. With thousands of tours and experiences in more than 700 locations, spanning six continents, Gray Line is also the largest direct supplier of destination services to online travel sellers, wholesalers and travel agents. Founded in 1910, Gray Line has grown into the most well-known consumer brand in sightseeing tours. Its global network of elite providers operates day tours, airport transfers, hop-on hop-off tours, multi-day packages, walking tours and other specialized destination services.
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The Gray Line Worldwide annual revenue was $100 million in 2026.
Gudrun Thorisdottir is the President of Gray Line Worldwide.
86 people are employed at Gray Line Worldwide.
Gray Line Worldwide is based in Denver, Colorado.
The NAICS codes for Gray Line Worldwide are [561, 56].
The SIC codes for Gray Line Worldwide are [47, 472].