| Business | Phone |
| Barta Electric Corp 29 Park Ln, Middle Island 11953 | (631) 451-0099 |
| Biltmore Electric Corp 17 Herdman Ct, Middle Island 11953 | (631) 924-3701 |
| Ennis Electric Svc Corp 9 Lake Dr, Middle Island 11953 | (631) 924-8414 |
| Robert Prisco Licensed Elec 20 Lakeview Dr, Middle Island 11953 | (631) 924-5247 |