| Business | Phone |
| Carolina Engineering Group 700 E North St # 12, Greenville 29601 | (864) 271-9006 |
| Delta Engineering Inc 315 E Broad St, Greenville 29601 | (864) 271-7343 |
| Peritus Engineers & Assoc Inc 10 E Dorchester Blvd, Greenville 29605 | (864) 277-8287 |
| Utc Technologies Inc 212 Pelham Davis Cir, Greenville 29615 | (864) 627-9987 |
| W G Bartlett Eng Svc 144 Paris Glen Way, Greenville 29609 | (864) 292-2345 |