| Company | Location | Certifications | License # |
|---|---|---|---|
| Anthony Vannoy | Kannapolis, NC | Installer (Level II) | 14941 |
| B & F Development | Yadkinville, NC | Installer (Level II) | 15003 |
| Bobs Backhoe & Bobcat | Salisbury, NC | Installer (Level II) | 5625 |
| Brown Well & Water Supply | Granite Quarry, NC | Installer (Level IV) | 11315 |
| Brown Well & Water Supply | Granite Quarry, NC | Installer (Level IV) | 11589 |
| C Wayne Orbison & Sons Inc | Mooresville, NC | Installer (Level IV) | 1141 |
| Cac Plumbing Llc | Granite Quarry, NC | Installer (Level II) | 9597 |
| Carolina Dirt Worx Llc | Rockwell, NC | Installer (Level II) | 15008 |
| Casey James Mowery | Mount Ulla, NC | Installer (Level II) | 14292 |
| Central Nc Development Inc | Kannapolis, NC | Installer (Level II) | 6473 |
| Clifford Construction Company Llc | Kannapolis, NC | Installer (Level II) | 15099 |
| Cut Rite Builders Inc | China Grove, NC | Installer (Level IV) | 11959 |
| Cut Rite Builders Inc | China Grove, NC | Installer (Level IV) | 11872 |
| Dalton Moose | Gold Hill, NC | Installer (Level II) | 15152 |
| Deene Solutions | Mooresville, NC | Installer (Level II) | 14987 |
| Dg Reynolds Llc | Salisbury, NC | Installer (Level IV) | 7265 |
| Fhaolain Group | Concord, NC | Installer (Level II) | 15355 |
| Full Service Llc | Salisbury, NC | Installer (Level II) | 9580 |
| Full Service Septic | Salisbury, NC | Installer (Level II)Inspector | 9922 |
| Full Service Septic | Salisbury, NC | Installer (Level IV)Inspector | 8028 |
| G & M Wilson Construction Inc | Salisbury, NC | Installer (Level II) | 5660 |
| Gen X Septic Service | Mooresville, NC | Installer (Level II) | 14033 |
| High Altitude Real Estate & Home Serv | China Grove, NC | Installer (Level IV)Inspector | 11182 |
| High Def Solutions Llc | Salisbury, NC | Installer (Level II) | 11714 |
| High Def Solutions Llc | Salisbury, NC | Installer (Level II) | 11719 |
| Honey Bee Septic Llc | Mount Pleasant, NC | Installer (Level II) | 14420 |
| Jeremy P Moffitt Construction Llc | China Grove, NC | Installer (Level II)Inspector | 5892 |
| Joshua Stirewalt | Rockwell, NC | Installer (Level II)Inspector | 11635 |
| Leach'S Grading | Richfield, NC | Installer (Level IV) | 5823 |
| M & B Property Service | Salisbury, NC | Installer (Level II) | 11030 |
| Marc Lista Building Company | Salisbury, NC | Installer (Level II) | 15137 |
| Marlin Wastewater Services Llc | Cleveland, NC | Designer (Soil Evaluator) | 10052E |
| Massey Septic Tank Co Inc | Mt Ulla, NC | Installer (Level II)Inspector | 11515 |
| Mid Carolina Construction Services Llc | Salisbury, NC | Installer (Level II) | 15242 |
| Myers Septic Tank | Salisbury, NC | Installer (Level IV)Inspector | 6452 |
| Myers Septic Tank | Salisbury, NC | Installer (Level IV)Inspector | 6451 |
| Ncst Dirt Solutions | Cleveland, NC | Installer (Level II) | 9623 |
| P & C Construction | China Grove, NC | Installer (Level IV)Inspector | 5705 |
| Piedmont Septic Solutions Llc | Woodleaf, NC | Installer (Level IV)Inspector | 7111 |
| Pine Acres Transport | Denton, NC | Installer (Level II) | 11003 |
| Ronnie Drye Backhoe Service | Rockwell, NC | Installer (Level II) | 2824 |
| Rowan Septic Tank | Salisbury, NC | Installer (Level IV)Inspector | 2627 |
| Rowan Site Solutions Llc | Salisbury, NC | Installer (Level II) | 11982 |
| Rrh Team Llc | Gold Hill, NC | Installer (Level II) | 14973 |
| S4v Inc | Rockwell, NC | Installer (Level IV)Inspector | 1139 |
| Scs Landworks | Salisbury, NC | Installer (Level II) | 11336 |
| Select Drainage | Granite Quarry, NC | Installer (Level IV)Inspector | 5574 |
| Soil & Forestry Services Of The Carolina | Concord, NC | Designer (Soil Evaluator) | 10044E |
| Solid Solutions Contracting Llc | Salisbury, NC | Installer (Level II) | 14109 |
| Southeastern Dirtworks | Salisbury, NC | Installer (Level IV) | 11472 |
| Southeastern Dirtworks Llc | Salisbury, NC | Installer (Level IV) | 11624 |
| Southern Ground Grading And Construction | Kanapolis, NC | Installer (Level IV) | 13014 |
| Structural Integrity Builders Nc Llc | Rockwell, NC | Installer (Level II) | 14773 |
| Sts Complete Septic Service & Grading | Rockwell, NC | Installer (Level II) | 11636 |
| Thomas Jakubisin | Salisbury, NC | Installer (Level II) | 11345 |
| Thompson Environmental Consulting Inc | Midland, NC | Designer (Soil Evaluator) | 10016E |
| Tony D Leatherman | Salisbury, NC | Installer (Level IV) | 11577 |
| Trail West Builders Llc | Rockwell, NC | Installer (Level II) | 9678 |
| United Illumination | Troutman, NC | Installer (Level II) | 15266 |
| Vada Enterprise | Kannapolis, NC | Installer (Level IV) | 11110 |
| Wb Enterprise Llc | Gold Hill, NC | Installer (Level IV)Inspector | 9737 |
| William Austin | Salisbury, NC | Installer (Level IV) | 11505 |
| Willowbrook Builders Inc | China Grove, NC | Installer (Level II) | 14849 |
63 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Rowan County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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