| Company | Location | Certifications | License # |
|---|---|---|---|
| All American Sewer & Drain Inc | Kearney, NE | InstallerPumper | 401908 |
| Anderson Brothers | Kearney, NE | InspectorInstallerPumper | 407124 |
| Circle S | Elm Creek, NE | InspectorInstaller | 403107 |
| Forward Well Service | Ravenna, NE | InspectorInstallerPumper | 402796 |
| Furby Plumbing | Kearney, NE | Installer | 410645 |
| Kilgore Plumbing | Gibbon, NE | Installer | 410770 |
| Kreutzer Plumbing Inc | Kearney, NE | Installer | 402225 |
| Mid-Nebraska Digging | Kearney, NE | Installer | 401934 |
| Shoemaker Backhoe & Trenching | Elm Creek, NE | Installer | 403142 |
| Stegeman Solutions | Kearney, NE | InstallerPumper | 410924 |
| Warren-T Plumbing Services | Kearney, NE | InspectorInstallerPumper | 408680 |
11 companies in the Nebraska DEE onsite wastewater (OWT) certified business registry are based in Buffalo County as of 2026-07-23. Companies based elsewhere in Nebraska also commonly serve the county.
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