| Betsy Ross Tours: Offers full-service tours in the District, Virginia, Maryland and Pennsylvania. Includes historical information and a slide show. |
| Bike the Sites: Offers guided interactive bicycle tours, morning exercise rides and bike rentals. Includes online booking. |
| Capitol River Cruises: Potomac River cruises and charters. |
| Georgetown House Tour: A tour of Georgetown's homes and gardens held on a weekend at the end of April. Different houses shown on Saturday and Sunday. Ticket includes afternoon tea. |
| Gilt-Edge Luxury Tours & Travel: Private tours of Washington, DC and surrounding areas with personal guide in luxury sedans,limousines, vans or mini-busses. Categorized tours, newsletter and rates. |
| Guild of Professional Tour Guides of Washington, DC: Membership organization of licensed professional tour guides and tour operators. Includes information about the guild and about being a tour guide. |
| Heritage Tours: Offers personalized tours, "meet and greet" services, and entertainment planning for meetings or conventions. |
| Historic Tours of America: Washington, DC: Operates Old Town Trolley city tours and amphibious DC Duck land and water tours. Tour descriptions and online ticketing. |
| Points of Interest: Guided tours of Washington DC, Baltimore, Annapolis, and Historic Southern Maryland. |
| Spirit Cruises: Cruises and tours on the Potomac River featuring lunch and dinner, live entertainment, and sightseeing. |
| Tour-One: White House Tours: Narrated tours of the White House and DC monuments. Offers daytime, nighttime, and customized tour packages. |
| Tourmobile Sightseeing: Operates daily narrated tours of major tourist sites. Information on tours offered, the stops along the way and buying tickets. |
| UC Tours: Specializes in multi-cultural historic touring. Includes programs. |
| Washington Walks: Guided walking tours. Information on the itineraries, schedules, and rates. |
| Zohery Tours International Inc.: Offers multilingual tours and transportation. Includes rates, online reservations and a newsletter. |
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