| Business | Phone |
| Collins Construction Corp 210 Middle Country Rd, Middle Island 11953 | (631) 698-5833 |
| East Island Site Development 54 Miller Place Yaphank Rd, Middle Island 11953 | (631) 924-0086 |
| Pipejackers Inc 15 E Bartlett Rd, Middle Island 11953 | (631) 924-1010 |
| Joseph Speizio Excavating Corp Jericho Tpke, Middle Island 11953 | (631) 924-6504 |