| Business | Phone |
| Absher General Contracting Inc 4400 Conowingo Rd, Darlington 21034 | (410) 457-4005 |
| Dirzuweit & Sons Builders Inc 1646 Whiteford Rd, Darlington 21034 | (410) 457-5574 |
| R N Hagis Construction Co P.O.Box 5882, Darlington 21014 | (410) 836-7022 |
| United Progressive Builders 1599 Nobles Mill Ct, Darlington 21034 | (410) 734-4432 |