| Business | Phone |
| Aarco Cesspool Svc 14 Smithtown Blvd, Ronkonkoma 11779 | (631) 981-5566 |
| Dependable Cesspool Sewer 2281 Motor Pkwy, Ronkonkoma 11779 | (631) 738-7100 |
| Emergency Cesspool 847 11th St, Ronkonkoma 11779 | (516) 921-0644 |
| Flow Easy Cesspool 76 Smith St, Ronkonkoma 11779 | (631) 835-7923 |
| Perkulator Cesspool Svc 384 Central Islip Blvd, Ronkonkoma 11779 | (631) 981-5678 |
| L & J Cesspool Svc Inc 900 10th St, Ronkonkoma 11779 | (631) 588-2236 |
| William Mallins Inc 54 Union Ave, Ronkonkoma 11779 | (631) 588-9369 |
| Wind River Environmental 11 11th St, Ronkonkoma 11779 | (631) 736-4819 |
| Windriver Environmental Inc 11 11th St, Ronkonkoma 11779 | (631) 580-3230 |