| Business | Phone |
| Coastal Research 2700 Savannah Hwy, Charleston 29414 | (843) 573-0013 |
| Guild Assoc Inc 1313 Ashley River Rd, Charleston 29407 | (843) 573-0095 |
| Katherine Duffy & Assoc 756 Clearview Dr, Charleston 29412 | (843) 795-4301 |
| Medical Research South 1483 Tobias Gadson Blvd # 101, Charleston 29407 | (843) 766-5045 |
| Naaucc Pa Research Center 1879 Savage Rd, Charleston 29407 | (843) 852-4852 |
| Odyssey Research 102 Wappoo Creek Dr # 5, Charleston 29412 | (843) 795-1710 |
| Secuity Research Co 18 Broad St, Charleston 29401 | (843) 722-6000 |