| Business | Phone |
| Campbell & Paris Engineers 1944 Davant Cir, Mt Pleasant 29464 | (843) 856-9989 |
| Hammerhead Design 2356 Darts Cove Way, Mt Pleasant 29466 | (843) 971-6202 |
| Triad Engineering & Cntrctng 1156 Bowman Rd, Mt Pleasant 29464 | (843) 416-1112 |
| Vessel Engineering Llc 1470 Ben Sawyer Blvd, Mt Pleasant 29464 | (843) 884-9937 |