| Business | Phone |
| Crockett Facilitie Svc 811 Vermont Ave Nw, Washington 20005 | (202) 898-1619 |
| American Telecommucations Svc 1341 G St Nw, Washington 20005 | (202) 783-0034 |
| Americas Travel Svc 2055 L St Nw, Washington 20036 | (202) 955-3815 |
| Archer Management Svc 1522 K St Nw, Washington 20005 | (202) 371-1525 |
| Boland Advisory Svc 700 13th St Nw, Washington 20005 | (202) 434-8935 |
| C M Svc 1825 I St Nw, Washington 20006 | (202) 429-5252 |
| Columbia Services Group Inc 441 4th St Nw, Washington 20001 | (202) 724-4735 |
| Court Services & Offender 601 Indiana Ave Nw, Washington 20004 | (202) 628-6680 |
| D V Svc Inc 4707 Connecticut Ave Nw # 115, Washington 20008 | (202) 537-1601 |
| Data Services Online Inc 1025 Connecticut Ave Nw, Washington 20036 | (202) 857-9790 |
| Day & Zimmermann Svc 951 V St Ne, Washington 20018 | (202) 529-8300 |
| Downtown Services Ctr 945 G St Nw # 107, Washington 20001 | (202) 393-5400 |
| Egg Emissions Testing Svc 300 M St Se, Washington 20003 | (202) 863-4011 |
| Guest Services 1300 Pennsylvania Ave Nw, Washington 20004 | (202) 408-1326 |
| Global Immigration Svc Inc 3218 O St Nw # 2, Washington 20007 | (202) 295-9095 |
| Golden Gate Svc Inc 500 E St Sw, Washington 20024 | (202) 863-4531 |
| I Core Advisory Svc 2300 M St Nw # 800, Washington 20037 | (202) 416-1636 |
| Informaiton Systems & Svc 501 School St Sw, Washington 20024 | (202) 484-1211 |
| Insurance Service Office 1201 Pennsylvania Ave Nw, Washington 20004 | (202) 661-4670 |
| Insurance Services 1201 Pennsylvania Ave Nw, Washington 20004 | (202) 661-4670 |
| International Consumer Svc 1730 K St Nw, Washington 20006 | (202) 861-0207 |
| International Executive Svc 901 15th St Nw, Washington 20005 | (202) 326-0280 |
| Ity Services Agency 1101 14th St Nw, Washington 20005 | (202) 289-7232 |
| Key Service Corp 1146 19th St Nw, Washington 20036 | (202) 452-4024 |
| Jackson Hewitt Tax Svc 4015 S Capitol, Washington 20032 | (202) 561-3760 |
| Ram Custom Svc Inc 301 4th St Sw, Washington 20024 | (202) 488-3342 |
| Metromedia Fibre Network Svc 1828 L St Nw # 714, Washington 20036 | (202) 463-7450 |
| Metropolitan Service & Mntnc 5016 Eastern Ave Ne, Washington 20017 | (202) 635-3421 |
| Midway Services Utilities 935 V St Ne, Washington 20018 | (202) 526-1000 |
| Millenium Services 1825 I St Nw, Washington 20006 | (202) 429-2031 |
| Multiple Services 936 9th St Ne, Washington 20002 | (202) 543-4583 |
| National Factoring Svc 1900 L St Nw, Washington 20036 | (202) 833-3885 |
| National I D Svc 1717 K St Nw, Washington 20036 | (202) 628-5888 |
| Newsource Affiliate Svc 1620 I St Nw, Washington 20006 | (202) 296-5853 |
| Occidential Service Inc 1717 Pennsylvania Ave Nw, Washington 20006 | (202) 833-2499 |
| P A Government Svc 1750 Pennsylvania Ave Nw #1000, Washington 20006 | (202) 442-2000 |
| Pals Inc 1745 Pennsylvania Ave Nw, Washington 20006 | (202) 319-2625 |
| Private Client Svc 1445 New York Ave Nw, Washington 20005 | (202) 879-6277 |
| Project Advisory Svc 3301 Massachusetts Ave Nw, Washington 20008 | (202) 298-5877 |
| Public Service Commission 717 14th St Nw, Washington 20005 | (202) 626-5100 |
| Richards Network Svc Inc 1201 Pennsylvania Ave Nw, Washington 20004 | (202) 661-4615 |
| S&s Bus Svc 3201 8th St Ne, Washington 20017 | (202) 269-9250 |
| Sda Church Community Svc 3926 Alabama Ave Se, Washington 20020 | (202) 582-5475 |
| Service Design Inc 2000 L St Nw, Washington 20036 | (202) 416-1790 |
| Session Title Svc 1150 Connecticut Ave Nw, Washington 20036 | (202) 862-4313 |
| State Services Organization 444 N Capitol St Nw # 237, Washington 20001 | (202) 347-5841 |
| Support Service 1201 Pennsylvania Ave Nw, Washington 20004 | (202) 661-4710 |
| Technology & Sec Svc Inc 1905 Brentwood Rd Ne, Washington 20018 | (202) 526-2033 |
| Tenant Services Group 3000 K St Nw, Washington 20007 | (202) 944-4150 |
| Timothy Services 2820 Pennsylvania Ave Nw, Washington 20007 | (202) 333-1506 |
| Wholistic Habilitative Svc Inc 1314 Perry St Ne, Washington 20017 | (202) 526-4009 |
| Worldwide System & Svc 913 12th St Ne, Washington 20002 | (202) 388-1611 |
| Trial Site Svc Inc 555 12th St Nw # 770, Washington 20004 | (202) 347-1000 |