| Business | Phone |
| Cossentino Contracting Co 106 Bloomsbury Ave, Catonsville 21228 | (410) 788-6172 |
| Everlast Contracting 6536 Redgate Cir, Catonsville 21228 | (410) 455-9880 |
| James E Holmes Contractor 212 Suter Rd # A, Catonsville 21228 | (410) 747-2760 |
| Whiting-Turner Contracting Co 5523 Research Park Dr, Catonsville 21228 | (410) 747-2343 |