| Company | Location | Certifications | License # |
|---|---|---|---|
| 4-D Trenching & Excavating | Ogallala, NE | Installer | 407636 |
| D & R Pumping | Ogallala, NE | Pumper | 403124 |
| Hillcrest Service | Ogallala, NE | Installer | 401653 |
| Ogallala Backhoe | Ogallala, NE | InstallerPumper | 401998 |
| Paul's Repair | Ogallala, NE | InstallerPumper | 408679 |
| Superior Sanitation | Ogallala, NE | InstallerPumper | 430050 |
6 companies in the Nebraska DEE onsite wastewater (OWT) certified business registry are based in Keith County as of 2026-07-23. Companies based elsewhere in Nebraska also commonly serve the county.
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