| Business | Phone |
| Catalina Marketing Corp 1739 Maybank Hwy, Charleston 29412 | (843) 762-3321 |
| Catalina Marketing Corp 2571 Ashley River Rd, Charleston 29414 | (843) 571-7828 |
| Magnets 4 Media 672 Marina Dr # 207, Charleston 29492 | (843) 216-6665 |
| Market Analyst Inc 176 Croghan Spur # 100, Charleston 29407 | (843) 797-8900 |