| Business | Phone |
| Lsm Development Corp 45 E Main St, Riverhead 11901 | (631) 369-8058 |
| Maidstone Landing 60 Dune Dr # A, Riverhead 11901 | (631) 369-6322 |
| Bridgefield Custom Builders 341 Sweezy Ave, Riverhead 11901 | (631) 208-3081 |
| Podlas Construction Inc 505 Lincoln St, Riverhead 11901 | (631) 727-4549 |