| Business | Phone |
| C & C Market Research Inc 205 W Blackstock Rd # 290, Spartanburg 29301 | (864) 595-1618 |
| Gallagher Research Svc 2375 E Main St # A308, Spartanburg 29307 | (864) 579-2115 |
| Priority Metrics Group 300 E Henry St, Spartanburg 29302 | (864) 573-9853 |
| Market Link Inc 300 E Henry St # 100, Spartanburg 29302 | (864) 582-1003 |