| Business | Phone |
| Louis Rash & Assoc 151 Porter Ave, Biloxi 39530 | (228) 435-5590 |
| Moran Engineering 249 Beauvoir Rd, Biloxi 39531 | (228) 388-1950 |
| Professional Engineering 13109 Highway 67, Biloxi 39532 | (228) 396-2800 |
| Speedwork Inc 9177 Selena Dr, Biloxi 39532 | (228) 392-7267 |
| Brown & Mitchell Inc 796 Vieux Marche Mall, Biloxi 39530 | (228) 436-7612 |
| Compton Engineering 156 Nixon St, Biloxi 39530 | (228) 432-2133 |