| Company | Location | Certifications | License # |
|---|---|---|---|
| Boothead Septic And Plumbing Llc | Caruthersville, MO | Installer (Level Advanced) | 39344 |
| Brb Inspections Llc | Poplar Bluff, MO | Installer (Level Basic) | 39125 |
| C And S Septic/Brb Inspections Llc | Poplar Bluff, MO | Installer (Level Basic) | 39139 |
| Caleb Joiner | Poplar Bluff, MO | Installer (Level Basic) | 39015 |
| Fnc Remodel & Plumbing | Malden, MO | Installer (Level Basic) | 38765 |
| Jonas Yates | Piedmont, MO | Installer (Level Basic) | 38549 |
| Joshua Trent | Farminton, MO | Installer (Level Basic) | 38502 |
| Korokis Dirt & Gravel | Poplar Bluff, MO | Installer (Level Basic) | 39194 |
| Martin Plumbing | Winona, MO | Installer (Level Basic) | 39334 |
| Mirowski Inspections | Springfield, MO | Installer (Level Basic) | 39226 |
| Mo-Ark Septic & Excavation | Mountain View, MO | Installer (Level Advanced) | 39315 |
| Nygard Construction Llc | Bernie, MO | Installer (Level Basic) | 38943 |
| Ozark National Scenic Riverway - Nps | Van Buren, MO | Installer (Level Advanced) | 37196 |
| Payton Cribbs | Ellington, MO | Installer (Level Basic) | 39179 |
| R L Persons Construction | Poplar Bluff, MO | Installer (Level Advanced) | 35717 |
| Randy Fitzwater | Patterson, MO | Installer (Level Basic) | 38503 |
| Sisson Construction & Excavation Llc | Bragg City, MO | Installer (Level Advanced) | 37393 |
| Steve Rogers | — | Installer (Level Basic) | 39154 |
| Tj'S Builder'S Llc | Poplar Bluff, MO | Installer (Level Basic) | 37194 |
19 companies in the Missouri DHSS registered OWTS installer list are based in Butler County as of 2026-07-23. Companies based elsewhere in Missouri also commonly serve the county.
Tell us what you need — we'll connect you with state-certified companies serving your area. No obligation.