| Business | Phone |
| A & A Enterprises Inc 1087 Terry Rd, Ronkonkoma 11779 | (631) 580-2725 |
| Action Ready Mix 2101 Pond Rd, Ronkonkoma 11779 | (631) 471-9090 |
| Atlantic Concrete Enterpises 95 Rose Dr, Ronkonkoma 11779 | (631) 580-1938 |
| Manta Contracting Inc 2819 Pond Rd, Ronkonkoma 11779 | (631) 737-2322 |
| C & L Concrete Corp 9 Union Ave, Ronkonkoma 11779 | (631) 467-4180 |
| Century Concrete Corp 960 Easton St, Ronkonkoma 11779 | (631) 467-4184 |
| Concrete Structures Inc 2380 Pond Rd, Ronkonkoma 11779 | (631) 588-7613 |
| Divad Concrete 230 Carroll Ave, Ronkonkoma 11779 | (631) 588-4404 |
| Triple H Concrete Inc 2375 Raynor St, Ronkonkoma 11779 | (631) 467-8899 |