- AM Electric Inc
- Bowman Electric
- C G Electric Inc
- Carter Brothers Electrical Inc
- Chuck's Electrical Svc
- Division One Electric Inc
- Ed Hanko
- F & M Electrical Svc
- Hall's Electric
- Hara Electrical Contractors
- HLW Electric
- HYH Electric Co Inc
- John E Kelly & Sons Electrical
- Ledbetter Electrical Co
- Merical Electrical Contractors
- Patuxent Electrical Svc
- Paul J Vignola Electric Co
- Recovery Electric
- REW Group
- Sunlight Electric Corp
- Terry Electrical Svc
- Three Phaze Electrical Co
- Tunnel Electric Construction
