| Business | Phone |
| Designs For Vision Inc 760 Koehler Ave, Ronkonkoma 11779 | (631) 585-3300 |
| Genetco Inc 711 Union Pkwy, Ronkonkoma 11779 | (631) 585-1000 |
| Home Health 2100 Smithtown Ave, Ronkonkoma 11779 | (631) 244-2021 |
| Knf Clean Room Products Corp 1800 Ocean Ave, Ronkonkoma 11779 | (631) 588-7000 |
| Testing Machines Inc 2 Fleetwood Ct, Ronkonkoma 11779 | (631) 439-5400 |