| Business | Phone |
| Bicentennial Joint Venture 9051 Baltimore National Pike, Ellicott City 21042 | (410) 465-3000 |
| Capital Contracting Inc Po Box 1887, Ellicott City 21041 | (410) 418-9306 |
| Chamberlain Construction Inc 3219 Corporate Ct, Ellicott City 21042 | (410) 203-2460 |
| Champion Construction 12930 Folly Quarter Rd, Ellicott City 21042 | (410) 531-3246 |
| Coi Inc 3525 Ellicott Mills Dr # J, Ellicott City 21043 | (410) 465-7404 |
| Construction Market Data 3119 Pine Orchard Ln, Ellicott City 21042 | (410) 750-0990 |
| Ctx Corp 6021 University Blvd, Ellicott City 21043 | (410) 480-9000 |
| Drg Construction Co 5166 Ilchester Rd, Ellicott City 21043 | (410) 788-8539 |
| Dundee Contracting Co 3633 Ligon Rd, Ellicott City 21042 | (410) 750-2131 |
| Dyson Construction Co Inc 5034 Dorsey Hall Dr # 202, Ellicott City 21042 | (410) 964-5100 |
| Environmental Associates 4756 Woodland Rd, Ellicott City 21042 | (301) 596-4471 |
| Green River Construction Inc 13541 Triadelphia Rd, Ellicott City 21042 | (410) 531-3977 |
| Haverhill Contracting Co Inc 5851 Waterloo Rd, Ellicott City 21043 | (410) 313-8300 |
| Helfenbein Co 4070 Fragile Sail Way, Ellicott City 21042 | (410) 461-1111 |
| J F Brinker & Sons Inc 12275 Carroll Mill Rd, Ellicott City 21042 | (410) 788-5353 |
| Kibler Construction Co Inc 8971 Chapel Ave, Ellicott City 21043 | (410) 480-4926 |
| Martin J Niessner Construction 4839 Rollingtop Rd, Ellicott City 21043 | (410) 465-0435 |
| Matjesdan Inc 12755 Triadelphia Rd, Ellicott City 21042 | (410) 988-9792 |
| Personalized Construction Inc Ellicott City 21042 | (410) 992-8300 |
| Porten-Sullivan Corp 9983 Old Mill Rd, Ellicott City 21042 | (410) 750-7150 |
| Rhs Builders 3718 Ligon Rd, Ellicott City 21042 | (410) 465-3770 |
| Sullivan Blake Remodeling Inc 9014 Manordale Ln, Ellicott City 21042 | (410) 418-9166 |
| Thalle Construction 13131 Williamfield Dr, Ellicott City 21042 | (443) 535-8933 |
| Total Construction Svc 10291 Baltimore National Pike, Ellicott City 21042 | (410) 461-7200 |