| Business | Phone |
| Corporate Information Svc 1629 K St Nw, Washington 20006 | (202) 912-4765 |
| D C Medicaid Managed Care Help 122 C St Nw # 600, Washington 20001 | (202) 639-4030 |
| Diamax Information Systms 1000 Vermont Ave Nw, Washington 20005 | (202) 289-7575 |
| Electronic Privacy Info Ctr 1718 Connecticut Ave Nw # 200, Washington 20009 | (202) 483-1140 |
| Federal Information Syst Corp 1000 Vermont Ave Nw, Washington 20005 | (202) 347-6400 |
| Federal Information Systems 100 Constitution Ave Ne, Washington 20002 | (202) 479-2600 |
| Freedom Information Systems 400 7th St Sw, Washington 20024 | (202) 479-6926 |
| Info Shop 1818 H St Nw, Washington 20001 | (202) 458-5454 |
| Information Center Inc 1005 1st St Ne, Washington 20002 | (202) 371-9577 |
| Information Department-Russian 1706 18th St Nw, Washington 20009 | (202) 232-6020 |
| Information Engineering Svc 1825 I St Nw, Washington 20006 | (202) 429-2707 |
| Information For Public Affairs 444 N Capitol St Nw # 725, Washington 20001 | (202) 638-7999 |
| Information Handling Svc 1101 30th St Nw, Washington 20007 | (202) 625-8331 |
| Information Systems Intgrtn 1050 17th St Nw, Washington 20036 | (703) 862-1769 |
| Information Technology Indstry 1250 I St Nw, Washington 20005 | (202) 737-8888 |
| Irish American Information Svc 529 14th St Nw # 837, Washington 20045 | (202) 662-8830 |
| Manning & Napier Information 1825 I St Nw, Washington 20006 | (202) 429-2724 |
| Microfinance Information Exch 1901 Pennsylvania Ave Nw, Washington 20006 | (202) 659-9802 |
| Nippon Information Svc 2004 17th St Nw, Washington 20009 | (202) 939-8850 |
| Pwa Advocacy Project 813 L St Se, Washington 20003 | (202) 543-5683 |
| R S Information Systems 400 Virginia Ave Sw, Washington 20024 | (202) 554-4186 |
| Surety Information Office 5225 Wisconsin Ave Nw # 600, Washington 20015 | (202) 686-7463 |
| Techniki Informatica 1422 44th St Nw, Washington 20007 | (202) 464-4696 |
| Washington Area Intergroup 4530 Connecticut Ave Nw # 111, Washington 20008 | (202) 966-9783 |
| Venezuela Information Office 733 15th St Nw, Washington 20005 | (202) 347-8081 |
| Africa Action 1634 I St Nw # 810, Washington 20006 | (202) 546-7961 |
| Air Quality Information Svc 475 H St Nw, Washington 20001 | (202) 682-0677 |
| Turkish Tourist Office 2525 Massachusetts Ave Nw, Washington 20008 | (202) 612-6800 |
| United Nations Development 1775 K St Nw # 420, Washington 20006 | (202) 331-9130 |