| Business | Phone |
| Empire State Environmental Svc 13 Trade Zone Ct, Ronkonkoma 11779 | (631) 588-0105 |
| Environmental Testing-Long Isl 40 Trade Zone Ct, Ronkonkoma 11779 | (631) 588-0807 |
| Enviroscience Inc 2150 Smithtown Ave # 3, Ronkonkoma 11779 | (631) 580-3191 |
| Envirotrac 80 Air Park Dr # B, Ronkonkoma 11779 | (631) 471-1500 |