| Business | Phone |
| Alpha Electric 1924 Phillips Mill Rd, Forest Hill 21050 | (410) 557-6848 |
| Benfield Electric Co 14 E Jarrettsville Rd, Forest Hill 21050 | (410) 879-1485 |
| Chestnut Hill Electric 2700 Chestnut Hill Rd, Forest Hill 21050 | (410) 420-7705 |
| Electratech Services Inc 2209 Tory Way, Forest Hill 21050 | (410) 879-3638 |
| Good Faith Electric 2011 Highfield Ct, Forest Hill 21050 | (410) 692-9195 |
| H & S Electric Svc Inc 1354 W Jarrettsville Rd, Forest Hill 21050 | (410) 557-7965 |
| Sbl Electric 2905 Ady Rd, Forest Hill 21050 | (410) 879-8110 |
| Schemm Electric Co 1375 W Jarrettsville Rd, Forest Hill 21050 | (410) 557-8550 |
| Stamper Electric Inc 1379 W Jarrettsville Rd, Forest Hill 21050 | (410) 557-7800 |
| Testerman Electrical Co Inc 350 Granary Rd, Forest Hill 21050 | (410) 877-0545 |
| Tri Tech Inc Forest Hill 21050 | (410) 557-3443 |