| Business | Phone |
| Ahmes Construction 605 Elwood Rd, East Northport 11731 | (631) 499-3444 |
| Lewis Construction 3 Burrwood Ct, East Northport 11731 | (631) 757-5077 |
| Avino Construction Inc 339 Larkfield Rd, East Northport 11731 | (631) 757-2271 |
| Benincasa Construction 37 Meadow Rue Ln, East Northport 11731 | (631) 368-2401 |
| Ckj Construction 608 4th Ave, East Northport 11731 | (631) 368-7911 |
| Cmw Construction 36 Oakledge Dr, East Northport 11731 | (631) 368-3905 |
| Creative Contracting Inc 27 Cornell St, East Northport 11731 | (631) 757-0794 |
| Eas Construction Inc 310 4th Ave, East Northport 11731 | (631) 368-1640 |
| Nova Contracting 104 Norton Dr, East Northport 11731 | (631) 261-3402 |
| Fritch Construction Co Inc 2 Railroad Ave, East Northport 11731 | (631) 757-5702 |
| Gnh Construction 29 Victor Dr, East Northport 11731 | (631) 499-3025 |
| Highline Construction Inc 15 Carrington Dr, East Northport 11731 | (631) 368-1048 |
| Imi Construction Corp 222 Cedar Rd, East Northport 11731 | (631) 368-2300 |
| Imperial Installation Inc Po Box 1075, East Northport 11731 | (631) 368-3100 |
| Quality Home Improvements 4 Ketchum Ct, East Northport 11731 | (631) 261-5509 |
| Ranger Construction Corp 224 4th St, East Northport 11731 | (631) 368-1141 |
| Seville Home Improvements 208 Vernon Valley Rd, East Northport 11731 | (631) 754-3541 |
| Vertex Steel Corp East Northport 11731 | (631) 368-3138 |
| Wedgewood Construction & Home 173 Ketay Dr S, East Northport 11731 | (631) 266-6619 |