| Business | Phone |
| Calvert Construction & Design 233 Eutaw Forest Dr, Waldorf 20603 | (301) 843-1030 |
| Charles County Builders Waldorf 20601 | (301) 870-5906 |
| District Builders 11865 Federal Sq, Waldorf 20602 | (301) 843-2500 |
| Kase Builders Inc 50 Post Office Rd # 303, Waldorf 20602 | (301) 638-0135 |
| Nelson Construction Co 16410 Cedar Lawn Dr, Waldorf 20601 | (301) 292-3670 |
| Oakridge Housing Corp 41 Industrial Park Dr # A, Waldorf 20602 | (301) 843-2277 |
| Oliveira Homes Inc 10 Irongate Dr # K, Waldorf 20602 | (301) 870-8152 |
| U S Structures Inc Waldorf 20601 | (301) 870-4433 |