| Business | Phone |
| Oak Contracting 1000 Cromwell Bridge Rd, Towson 21286 | (410) 828-1000 |
| Allied Builders 120 Sister Pierre Dr, Towson 21204 | (410) 583-0700 |
| Arthur Building Systems 100 West Rd, Towson 21204 | (410) 337-7887 |
| Building Services 24 W Pennsylvania Ave, Towson 21204 | (410) 321-5666 |
| Family Building Ctr Inc 606 Baltimore Ave, Towson 21204 | (410) 296-5126 |