| Company | Location | Certifications | License # |
|---|---|---|---|
| Bear Trap Ranch Supply & Const | Ainsworth, NE | Installer | 402670 |
| Saner Plumbing & Iron Inc | Ainsworth, NE | InstallerPumper | 410407 |
2 companies in the Nebraska DEE onsite wastewater (OWT) certified business registry are based in Brown County as of 2026-07-23. Companies based elsewhere in Nebraska also commonly serve the county.
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