| Business | Phone |
| Arbor Engineering Inc 10 Williams St, Greenville 29601 | (864) 235-3589 |
| Black & Veatch 201 Brookfield Pkwy # 150, Greenville 29607 | (864) 234-6678 |
| Caliber Engineering 750 Executive Center Dr, Greenville 29615 | (864) 244-9238 |
| Civil Consulting & Design 198 Roper Mountain Road Ext #B, Greenville 29615 | (864) 250-9999 |
| Gray Engineering Consultants 132 Pilgrim Rd, Greenville 29607 | (864) 297-3027 |
| Hall Engineering Inc 14 Manly St, Greenville 29601 | (864) 370-1560 |
| Seamon Whiteside & Assoc Inc 209 E Washington St, Greenville 29601 | (864) 298-0534 |