| Business | Phone |
| A D & M Electric Co & Aerial 208 West St, Berlin 21811 | (410) 641-2727 |
| Adkins Electric Co 125 Cedar Ave, Berlin 21811 | (410) 641-0816 |
| Anderson Electric Svc 11124 Spring Branch Ln, Berlin 21811 | (410) 641-5390 |
| Shore Service Electrical Contr 6 Cameo Ct, Berlin 21811 | (410) 208-6809 |
| Brighter Days Electric 4 Cresthaven Dr, Berlin 21811 | (410) 208-0112 |
| Thomas Electric 35 Rabbit Run Ln, Berlin 21811 | (410) 641-8422 |
| Englishmen Electric 10922 Player Ln, Berlin 21811 | (410) 208-9196 |
| Turner Electrical & Constr 43 Moonshell Dr, Berlin 21811 | (410) 641-8516 |
| Gilbert Electrical Contractors Berlin 21811 | (410) 629-0017 |
| J T Novak Inc Berlin 21811 | (410) 208-3052 |
| Kirkwood Electric 620 Williams St, Berlin 21811 | (410) 641-0991 |
| Bernard G Kreppel 11003 Grays Corner Rd, Berlin 21811 | (410) 641-9948 |