| Business | Phone |
| Ams North America 1101 15th St Nw, Washington 20005 | (202) 429-0001 |
| Areo Jet 1025 Connecticut Ave Nw # 501, Washington 20036 | (202) 828-6800 |
| Arianespace Inc 601 13th St Nw # 710n, Washington 20005 | (202) 628-3936 |
| Finmeccanica Inc 1101 15th St Nw # 603, Washington 20005 | (202) 223-0313 |
| Honeywell International Inc 1001 Pennsylvania Ave Nw #700s, Washington 20004 | (202) 662-2650 |
| Lockheed Martin Corp 400 Virginia Ave Sw # 400, Washington 20024 | (202) 646-1900 |
| Northrop Grumman Corp 80 M St Se # 500, Washington 20003 | (202) 203-3000 |
| Orbital Sciences Corp 407 1st St Se, Washington 20003 | (202) 544-0005 |
| Spacehab Inc 601 13th St Nw, Washington 20005 | (202) 488-3500 |