| Company | Location | Certifications | License # |
|---|---|---|---|
| 3-B'S Septic Tank Service | Newberry, SC | Installer (Tier 2) | 36-367-36048 |
| A.P. Skenes Services Llc | Prosperity, SC | Installer (Tier 2) | OSWWI0142 |
| Brigman'S Septic Tank Svc | Newberry, SC | Pumper | 36-368-36003 |
| Brigmans Septic Tank Service | Newberry, SC | Installer (Tier 2) | 36-367-36049 |
| Brigmans Septic Tank Service | Newberry, SC | Pumper | 36-368-36008 |
| Combined Construction & Gradin | Prosperity, SC | Installer (Tier 2) | 36-367-36047 |
| Counts Tractor Service Llc | Prosperity, SC | Installer (Tier 2) | 36-367-36033 |
| Diggin N Dozin | Prosperity, SC | Installer (Tier 2) | OSWWI0455 |
| Dominick Property Solutions | Little Mountain, SC | Installer (Tier 2) | OSWWI0335 |
| Heanue Well Driiling & Septic | Prosperity, SC | Installer (Tier 2) | 36-367-36026 |
| In-A-Snap Services Dba A.P. Skenes Const | Prosperity, SC | Pumper | OSWWP0059 |
| Integrity Soil And Wastewater Services Inc | Whitmire, SC | Installer (Tier 2) | OSWWI0160 |
| Jhl Construction | Newberry, SC | Installer (Tier 2) | 36-367-36035 |
| Johnson Excavating | Kinards, SC | Installer (Tier 2) | 36-367-36043 |
| R.B. Mckelvey Land Works Llc | Prosperity, SC | Installer (Tier 2) | OSWWI0828 |
| Revels Septic Tank Service | Whitmire, SC | Pumper | 36-368-36006 |
| Simpson Development Company | Newberry, SC | Installer (Tier 2) | OSWWI0409 |
| Spearman'S Land Clearing | Newberry, SC | Installer (Tier 2) | 36-367-36024 |
| Swygert Construction Company | Prosperity, SC | Installer (Tier 2) | 36-367-36014 |
| Swygert Construction Company Inc | Prosperity, SC | Pumper | OSWWP0047 |
| William C Fanning Jr | Pomaria, SC | Installer (Tier 2) | 36-367-36005 |
| Willingham & Sons Bldg &Supply | Newberry, SC | Installer (Tier 2) | 36-367-36015 |
22 companies in the SCDES on-site wastewater (OSWW) contractor registry are based in Newberry County as of 2026-07-23. Companies based elsewhere in South Carolina also commonly serve the county.
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