| Business | Phone |
| B P Barber & Assoc Inc 9601 Warren H Abernathy Hwy, Spartanburg 29301 | (864) 949-1111 |
| Blackwood Associates Inc 603 W Main St, Spartanburg 29301 | (864) 583-5432 |
| Cdc Inc 22 Old House Ln, Spartanburg 29302 | (864) 968-9044 |
| Vaugh & Melton Consulting Engr 243 E Blackstock Rd # 7, Spartanburg 29301 | (864) 574-4775 |
| Southern Design Svc Inc 110 Carpet Dr, Spartanburg 29303 | (864) 278-5000 |
| Jones Consulting 350 Farm Lake Rd, Spartanburg 29316 | (864) 814-0579 |
| Lockwood Greene Engineers Inc 1500 International Dr, Spartanburg 29303 | (864) 578-2000 |
| Matrix Engineering Inc 912 S Pine St, Spartanburg 29302 | (864) 583-6274 |
| Mdi Solutions 213 Aberdeen Ln, Spartanburg 29307 | (864) 582-7583 |