| Business | Phone |
| Amsec Corp 5290 Rivers Ave # 502, North Charleston 29406 | (843) 747-3888 |
| Gomez & Assoc Co 3216 Industry Dr # C, North Charleston 29418 | (843) 552-4552 |
| Gstek Inc 3125 Ashley Phosphate Rd, North Charleston 29418 | (843) 207-0686 |
| Icf Consulting 5300 International Blvd # 207, North Charleston 29418 | (843) 760-2908 |
| Lindbergh & Assoc 2170 Ashley Phosphate Rd # 504, North Charleston 29406 | (843) 553-6670 |
| Quality Vision 7220 Investment Dr, North Charleston 29418 | (843) 760-2520 |
| Systems Research Group 3875 Faber Place Dr, North Charleston 29405 | (843) 554-9788 |
| Wilbur Smith Assoc 1362 Mcmillan Ave # 101, North Charleston 29405 | (843) 958-1500 |