| Business | Phone |
| Alden Research Inc 3617 Ligon Rd, Ellicott City 21042 | (410) 750-2101 |
| Athabasca Software 4931 Lee Farm Ct, Ellicott City 21043 | (410) 997-5958 |
| Caris Usa Inc 3239 Corporate Ct # A, Ellicott City 21042 | (410) 418-8907 |
| Ellicott Group Inc 12685 Golden Oak Dr, Ellicott City 21042 | (410) 531-7401 |
| Fin Soft 5409 Jerseybelle Ct, Ellicott City 21043 | (410) 719-1022 |
| Financial & Scientific Sftwr 3201 West Springs Dr, Ellicott City 21043 | (410) 480-0958 |
| I Q Computers 8450 Baltimore National Pike, Ellicott City 21043 | (410) 465-3974 |
| Lockheed Martin Corp 6021 University Blvd # 130, Ellicott City 21043 | (410) 312-9114 |
| Medical Technologies Inc 11734 Frederick Rd, Ellicott City 21042 | (410) 531-9800 |
| Micro Focus Ellicott City 21042 | (443) 755-0566 |
| Millennium Software Corp 4701 Leyden Way, Ellicott City 21042 | (410) 997-0744 |
| Gerald Nesbit Ellicott City 21042 | (443) 755-0566 |
| Paragon Computer Svc Inc 3273 Pine Orchard Ln # C, Ellicott City 21042 | (410) 461-7404 |
| Power Web Inc 4574 Kingscup Ct, Ellicott City 21042 | (410) 203-9863 |
| Rosetta Technologies 10229 Queens Camel Ct, Ellicott City 21042 | (410) 465-2569 |
| Software Resources Group Inc Ellicott City 21043 | (410) 461-9388 |
| Vision Systems & Tech Inc 6021 University Blvd # 360, Ellicott City 21043 | (410) 418-5555 |
| Windmill Software Corp 4400 South Meadow Ct, Ellicott City 21042 | (410) 480-1651 |