Potomac Riverboat Company
- Sightseeing tours and private charters. View types of cruises offered, events, and fleet.
- http://www.potomacriverboatco.com/

Potomac Belle Boat Charter
- Offers private yacht charters from Old Town Alexandria for corporate events, special events, and dinner cruises. Vessel information, photos, information about destinations, catering, events, prices, and directions.
- http://www.potomacbelle.com/

Caribbean Cruise and Travel
- Full service travel agency featuring discount air fares and cruise packages.
- http://www.tvltoday.com