| Company | Location | Certifications | License # |
|---|---|---|---|
| Beauford'S Backhoe Service Llc | Abbeville, SC | Installer (Tier 2) | 01-367-01039 |
| Bosler Backhoe | Abbeville, SC | Installer (Tier 2) | 01-367-01022 |
| Collier Grading And Excavating Llc | Greenville, SC | Installer (Tier 2) | OSWWI0722 |
| Hansam Enterprises | Honea Path, SC | Installer (Tier 2) | OSWWI0604 |
| Higdon'S Septic Cleaning Service, Llc | Abbeville, SC | Pumper | 01-368-01002 |
| Mcneil Company | Abbeville, SC | Installer (Tier 2) | OSWWI0136 |
| Overholt Grading | Abbeville, SC | Installer (Tier 2) | 01-367-01009 |
| Piney Hollow Llc | Abbeville, SC | Installer (Tier 2) | OSWWI0772 |
| T Hanna Contracting | Iva, SC | Installer (Tier 2) | 01-367-01036 |
| Thompson Construction And Landscaping | Iva, SC | Installer (Tier 2) | OSWWI0557 |
| Tiller Backhoe & Dozer Service | Abbeville, SC | Installer (Tier 2) | 01-367-01011 |
| Triple W Ranch Llc | Abbeville, SC | Installer (Tier 2) | 01-367-01040 |
12 companies in the SCDES on-site wastewater (OSWW) contractor registry are based in Abbeville County as of 2026-07-23. Companies based elsewhere in South Carolina also commonly serve the county.
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