| Business | Phone |
| Davis Travel Connection Po Box 15339, Washington 20003 | (202) 544-2313 |
| Carnival Corp & Plc 1101 Pennsylvania Ave Nw # 530, Washington 20004 | (202) 347-7150 |
| Crescent Travel Ltd 1835 K St Nw, Washington 20006 | (202) 887-5293 |
| Cruise Web Inc 4455 Connecticut Ave Nw, Washington 20008 | (202) 362-2290 |
| Golden Travel Svc 1010 Vermont Ave Nw, Washington 20005 | (202) 628-6868 |
| King Travel & Tours 3029 M St Nw # 2, Washington 20007 | (202) 338-9393 |
| Odyssey Cruises 600 Water St Sw, Washington 20024 | (202) 488-6000 |
| Spirit Of Washington & Potomac 6th St & Water St Swamp;, Washington 20024 | (202) 484-2320 |