| Brogan Land Clearing | McCleary | 1 | Demolition debris | (360) 495-3458 | 0.0 |
| House Brothers Const Inc | McCleary | 20 | Excavation Contractors | (360) 495-4156 | 0.0 |
| Junk B Gone | McCleary | 1 | Trash Hauling | (206) 722-4285 | 0.0 |
| Waste Care Septic Services | Elma | 2 | Septic and portable sanitation | (360) 964-2150 | 6.7 |
| Bay Shore Construction | Olympia | 5 | General Contractors | (360) 866-9200 | 11.6 |
| Concrete Recyclers Inc | Tumwater | 3 | Asphalt | (360) 570-1562 | 12.3 |
| Jones Septic | Olympia | 1 | Septic Tanks & Systems | (360) 357-3486 | 12.3 |
| Olympia Septic Service LLC | Olympia | 1 | Septic and portable sanitation | (360) 918-8883 | 12.3 |
| Petunia Septic Service | Olympia | 1 | Septic Tank & System Cleaning | (360) 754-3818 | 12.3 |
| Rocklan Septic Service Inc | Olympia | 1 | Septic Tanks & Systems | (360) 491-9459 | 12.3 |
| Sanitation Services | Olympia | 4 | Waste collection | (360) 742-9065 | 12.3 |
| Septic Specialists Inc | Olympia | 6 | Septic Tanks & Systems | (360) 357-4272 | 12.3 |
| Septic Tank Cleaning Service | Olympia | 1 | Septic Tank & System Cleaning | (360) 352-9922 | 12.3 |
| Sound Septic Inc | Olympia | 3 | Septic Tanks & Systems | (360) 790-8089 | 12.3 |
| Aaa Septic LLC | Shelton | 8 | Septic Tanks & Systems | (360) 427-6110 | 14.9 |
| Bamford Septic Repair LLC | Shelton | 5 | Septic and portable sanitation | (360) 701-9826 | 14.9 |
| Highclimber LLC | Shelton | 2 | Garden Centers | (360) 427-4489 | 14.9 |
| Jims Septic Service LLC | Shelton | 1 | Septic and portable sanitation | (360) 790-1711 | 14.9 |
| JK Construction | Shelton | 3 | Demolition debris | (360) 239-0009 | 14.9 |
| Mason County Garbage Co Inc | Shelton | 26 | Dumps | (360) 426-8729 | 14.9 |
| Mason County Salvage | Shelton | 2 | — | (360) 426-8626 | 14.9 |
| Mason County Septic Systems | Shelton | 2 | Septic and portable sanitation | (360) 426-8642 | 14.9 |
| Mikes Septic Services | Shelton | 1 | Septic and portable sanitation | (360) 556-0171 | 14.9 |
| Mikkelsen Septic LLC | Shelton | 2 | Septic Tanks & Systems | (360) 480-3571 | 14.9 |
| Olympic Junk Hauling LLC | Shelton | 1 | Junk Removal | (360) 995-8344 | 14.9 |
| Olympic Septic and Porta Potty LLC | Shelton | 1 | Chiropractors & Chiropractic Services | (360) 426-6325 | 14.9 |
| Pay Dirt Dump Truckin | Shelton | 1 | Roll-off dumpsters | (360) 801-0290 | 14.9 |
| R&K Recycling | Shelton | 1 | Recycling | (360) 490-6040 | 14.9 |
