| Business | Phone |
| Amex International Inc 1615 L St Nw # 340, Washington 20036 | (202) 429-0222 |
| Fettig & Donalty Inc 1225 I St Nw # 1200, Washington 20005 | (202) 628-5700 |
| Phoenix Chartering Inc 1225 I St Nw # 1220, Washington 20005 | (202) 638-1545 |
| Star Trading & Marine Inc 1050 17th St Nw # 450, Washington 20036 | (202) 785-9090 |
| Washington Maritime Shipping 1030 15th St Nw # 220, Washington 20005 | (202) 833-9892 |