| Company | Location | Certifications | License # |
|---|---|---|---|
| Burly & Son Septic Service | Kings Mtn, NC | Installer (Level IV) | 9588 |
| Cameron D Hord | Kings Mtn, NC | Installer (Level II) | 11485 |
| Carolina Services Llc | Shelby, NC | Installer (Level II) | 11748 |
| Chris Bragg Pools | Shelby, NC | Installer (Level II) | 11835 |
| Cleveland Septic Solutions Llc | Shelby, NC | Installer (Level II) | 11047 |
| Cleveland Septic Solutions Llc | Shelby, NC | Installer (Level II) | 9509 |
| Dellinger Septic & Grading | Shelby, NC | Installer (Level IV) | 9670 |
| Dimmers Precision Grading | Kings Mountain, NC | Installer (Level II) | 15225 |
| Foothills Land Solutions Llc | Shelby, NC | Installer (Level II) | 14577 |
| Gidney Septic Tank Service | Shelby, NC | Installer (Level II) | 6116 |
| Goforth Grading And Septic | Kings Mtn, NC | Installer (Level II) | 9644 |
| Grant Septic Service Llc | Shelby, NC | Installer (Level II) | 9781 |
| Henderson'S Custom Services | Shelby, NC | Installer (Level II) | 11229 |
| Hinson Farm & Grading Llc | Kings Mtn, NC | Installer (Level II) | 11362 |
| Hord Grading Llc | Kings Mountain, NC | Installer (Level II) | 11433 |
| Hsi Land Development | Kings Mountain, NC | Installer (Level II) | 9176 |
| Jc Post Frame Llc | Shelby, NC | Installer (Level II) | 14369 |
| Jordanne Briggs-Gravley | Kings Mountain, NC | Installer (Level II) | 11457 |
| Laasnd Pros Land Management | Shelby, NC | Installer (Level II) | 11527 |
| Land Pros Land Management | Shelby, NC | Installer (Level II) | 12019 |
| Ledbetters Plumbing | Bostic, NC | Installer (Level II) | 15274 |
| Mcmurry Construction And Grading | Lawndale, NC | Installer (Level II) | 7997 |
| Obando Fencing & Construction Llc | Shelby, NC | Installer (Level II) | 9464 |
| Ple Septic And Land Solutions Llc | Grover, NC | Installer (Level II) | 15131 |
| Putnam Excavation | Shelby, NC | Installer (Level IV) | 9992 |
| Quality Excavation Services Llc | Lawndale, NC | Installer (Level II) | 14729 |
| R Kelly Gragg | Shelby, NC | Installer (Level II) | 2847 |
| Red Letter Earthworks Llc | Shelby, NC | Installer (Level IV) | 9652 |
| Rhea'S Backhoe & Septic Tank Service Inc | Kings Mtn, NC | Installer (Level IV)Inspector | 1161 |
| Rocking W Llc | Lawndale, NC | Installer (Level II)Inspector | 9375 |
| Sarratt Septic | Lawndale, NC | Installer (Level IV)Inspector | 4863 |
| Sri Construction Llc | Shelby, NC | Installer (Level II) | 7984 |
| Stroup Grading | Shelby, NC | Installer (Level II) | 7150 |
| Summeys Septic Tank | Shelby, NC | Installer (Level IV) | 1874 |
| Summeys Septic Tank & Grading Inc | Shelby, NC | Installer (Level IV) | 7907 |
| Two Brothers Utilities Llc | Shelby, NC | Installer (Level IV) | 7138 |
| Wesson Septic Tank Service Inc | Shelby, NC | Installer (Level IV)Inspector | 1064 |
| Wesson Septic Tank Service Inc | Shelby, NC | Installer (Level IV) | 1027 |
| Wright Plumbing Llc | Mooresboro, NC | Installer (Level II) | 14954 |
39 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Cleveland County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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