| Business | Phone |
| Comer Construction 2100 Slade Ln, Forest Hill 21050 | (410) 879-6094 |
| Harrington Septic Svc 2911 Grier Nursery Rd, Forest Hill 21050 | (410) 836-7766 |
| James C Wilson Excavating Inc 104 Industry Ln, Forest Hill 21050 | (410) 838-0055 |
| Kelly Construction Co 2628 Rocks Rd, Forest Hill 21050 | (410) 803-9200 |