| Business | Phone |
| Carolina Engineering Svc Inc 512 Reynolds Ave, Greenwood 29649 | (864) 229-6256 |
| Davis & Floyd Inc 1319 Reynolds Ave, Greenwood 29649 | (864) 229-5211 |
| Gilbert Group Ltd 332 Main St # 100, Greenwood 29646 | (864) 223-6181 |
| Robertson-Wade Engineering Inc 340 Main St # D, Greenwood 29646 | (864) 223-0691 |
| Synergetic Design Engineering 101 Rutledge Rd, Greenwood 29649 | (864) 223-2161 |