| Business | Phone |
| Almighty Electric Corp 13 Mill Dr, Mastic Beach 11951 | (631) 395-9111 |
| Custom Electrical Group Inc 173 Church Dr, Mastic Beach 11951 | (631) 395-1600 |
| Rose Electric & Alarm 308 Cypress Dr, Mastic Beach 11951 | (631) 244-8301 |
| Thomas J Farra Electrical Corp 190 Washington Ave, Mastic Beach 11951 | (631) 281-7344 |