| Business | Phone |
| Arium Inc 5537 Twin Knolls Rd # 435, Columbia 21045 | (410) 730-2300 |
| Banta Campbell Architects Inc 6315 Hillside Ct # C, Columbia 21046 | (410) 290-9006 |
| C W Architect Inc 9200 State Route 108, Columbia 21045 | (410) 740-0573 |
| Cardozo Architects 8517 Moon Glass Ct, Columbia 21045 | (410) 720-4222 |
| D R Brasher Architects Inc 5560 Sterrett Pl # 300, Columbia 21044 | (410) 995-0015 |
| Daniel Ball & Assoc Inc 5513 Twin Knolls Rd # 216, Columbia 21045 | (410) 715-0408 |
| Design Structures 5676 Vantage Point Rd, Columbia 21044 | (410) 997-8114 |
| George Vaeth Assoc Inc 5501 Twin Knolls Rd # 108, Columbia 21045 | (410) 997-1000 |
| Henneman & Assoc 10705 Charter Dr # 440, Columbia 21044 | (410) 992-4417 |
| Kevin Mc Kenna Architects 6576 Sweet Fern, Columbia 21045 | (410) 381-5817 |
| Madison Design Group 6607 Shady Grv, Columbia 21044 | (301) 596-1088 |
| Michael Hackley Architects 7513 Weather Worn Way # F, Columbia 21046 | (301) 596-7049 |
| Psi Architects Inc 8571 Black Star Cir, Columbia 21045 | (301) 596-5100 |
| Robert Kaplan Architects Columbia 21044 | (410) 531-9100 |
| Scott Grice Architects Inc 10704 Cottonwood Way, Columbia 21044 | (410) 992-0640 |