| Envirotech Septic Service LLC | Westbrook | 2 | Septic Tank & System Cleaning | (860) 669-9280 | 0.0 |
| John J Doerrer Inc | Westbrook | 2 | Septic Tank & System Cleaning | (860) 669-8752 | 0.0 |
| Monoflo Septic Tank Company Incorporated | Westbrook | 3 | Septic and portable sanitation | (860) 227-9550 | 0.0 |
| Unghire Hauling LLC | Ivoryton | 1 | — | (860) 876-5596 | 2.7 |
| Anderson Bros Sanitation and Excavating Inc | Clinton | 5 | Septic Tank & System Cleaning | (203) 421-4080 | 3.4 |
| Country Sanitation Septic Service LLC | Clinton | 1 | Septic Tank & System Cleaning | (203) 421-4080 | 3.4 |
| Lussier and Son's Septic Service LLC | Clinton | 5 | Septic Tanks & Systems | (860) 669-7775 | 3.4 |
| Nealon Insulation | Clinton | 8 | Insulation Contractors | (860) 669-0333 | 3.4 |
| Walter Septic Services LLC | Clinton | 2 | Septic Tank & System Cleaning | (860) 227-5278 | 3.4 |
| Duncan Downie's Excavation Inc | Old Saybrook | 4 | Septic Tank & System Cleaning | (860) 399-6055 | 4.2 |
| Monoflo Systems | Old Saybrook | 2 | Septic and portable sanitation | (860) 304-6435 | 4.2 |
| Rankin Waste Removal LLC | Old Saybrook | 2 | Rubbish Removal | (860) 388-0600 | 4.2 |
| River Valley Septic Services LLC | Old Saybrook | 1 | Septic and portable sanitation | (860) 977-7197 | 4.2 |
| Solari Brothers Carting LLC | Old Saybrook | 1 | General Contractors | (860) 388-1081 | 4.2 |
| Valley Shore Waste and Recycling LLC | Old Saybrook | 1 | Recycling Centers | (860) 395-4775 | 4.2 |
| North East Appliance Recycler | North Bradford | 1 | Recycling | (203) 488-7771 | 4.3 |
| Calamari Recycling Co Inc | Essex | 4 | Recycling Centers | (860) 767-2267 | 4.8 |
| Engineered Septic & Sewer LLC | Essex | 1 | Septic Tanks & Systems | (860) 767-0603 | 4.8 |
| Finkeldey Septic Service LLC | Essex | 3 | Septic Tank & System Cleaning | (860) 767-8822 | 4.8 |
| Olsen Sanitation Co | Chester | 2 | Septic Tank & System Cleaning | (860) 526-1474 | 6.9 |
| Bullbag Corporation | Killingworth | 11 | Plastics & Plastic Products | (866) 414-2855 | 7.7 |
| Just Dump It LLC | Old Lyme | 6 | Dump Truck Service | (860) 989-4902 | 8.3 |
| Septicworks LLC | Old Lyme | 1 | Septic and portable sanitation | (860) 598-9525 | 8.3 |
| Country Sanitation Inc | Madison | 1 | Septic Tanks & Systems | (203) 245-7292 | 8.7 |
| Express Hauling LLC | Madison | 4 | — | (860) 951-8834 | 8.7 |
| JVB Dumpster Services LLC | Madison | 1 | Roll-off dumpsters | (505) 331-0991 | 8.7 |
| Shoreline Septic and Excavation LLC | Madison | 1 | Septic and portable sanitation | (203) 815-7474 | 8.7 |
| Wilson Septic Service LLC | Madison | 1 | Septic Tank & System Cleaning | (203) 245-2541 | 8.7 |
| James Todd Carlson | Haddam | 3 | Attorneys | (860) 345-4236 | 10.5 |
| CT Septic & Inspections LLC | East Haddam | 3 | Septic Tank & System Cleaning | (860) 823-7324 | 11.7 |
| CT Septic & Inspections LLC | East Haddam | 3 | Septic Tank & System Cleaning | (860) 823-7324 | 11.7 |
| A & W Sanitation Company | Guilford | 5 | Septic Tank & System Cleaning | (203) 453-5025 | 12.3 |
| American Carting Co Inc | Guilford | 5 | Garbage Collection | (203) 457-0447 | 12.3 |
| Camarota Sanitation & Excavation | Guilford | 2 | Waste collection | (203) 738-9295 | 12.3 |
| Gentleman Jon Portable Restrooms | Guilford | 2 | Septic and portable sanitation | (203) 645-6185 | 12.3 |
| Local Carting | Guilford | 1 | Waste collection | (203) 457-2206 | 12.3 |
| Ozzies Carting | Guilford | 3 | Trucking-Light Hauling | (203) 488-8959 | 12.3 |
| Wicked Hauling LLC | Guilford | 2 | — | (203) 684-8266 | 12.3 |
| A-1 Waste Removal and Recycling Company LLC | Higganum | 1 | Recycling | (860) 345-3119 | 12.5 |
| dba Septic Systems Solutions | Higganum | 1 | Drainage Contractors | (860) 250-2128 | 12.5 |
| Higganum Septic Tank Company | Higganum | 1 | Septic Tank & System Cleaning | (860) 345-2590 | 12.5 |
| Hunters Recycling and Recovery LLC | Higganum | 1 | Recycling Centers | (860) 748-5122 | 12.5 |
| PJS Ozzies Dumpster Services | Higganum | 1 | Roll-off dumpsters | (203) 214-4496 | 12.5 |
| Riebold Sanitation LLC | Higganum | 1 | Waste collection | (860) 345-2708 | 12.5 |
| Summit Septic & Excavation LLC | Higganum | 1 | Septic and portable sanitation | (860) 490-2527 | 12.5 |
| Hayes Dumpster Services LLC | East Lyme | 6 | Horticulture Products & Services | (860) 739-2273 | 12.7 |
| McCaffery Property Services LLC | Niantic | 6 | — | (860) 333-8223 | 13.1 |
| Spencer Beers Septic Tank Service Inc | Niantic | 2 | Septic Tanks & Systems | (860) 739-7761 | 13.1 |
| AWC | East Haddam | 2 | Garbage Collection | (860) 873-9005 | 13.9 |
