| Business | Phone |
| Brady Electrical Svc Inc 123 Marlin Ct, Centreville 21617 | (410) 758-5333 |
| Busick Electric 118 Spaniards Neck Rd, Centreville 21617 | (410) 758-0437 |
| Garrett German & Son Inc 106 Banjo Ln, Centreville 21617 | (410) 758-0225 |
| M J Electric Llc Centreville 21617 | (410) 758-8333 |