| Business | Phone |
| Chris Myrick Consulting Inc 2927 Audubon Dr, Laurel 39440 | (601) 425-3764 |
| Dwc Engineering 17 Billy Craft Rd, Laurel 39443 | (601) 649-8023 |
| G & S Engineering 4129 Highway 15 N, Laurel 39440 | (601) 649-2333 |
| Magnolia Engineering Group 469 Springhill Rd, Laurel 39443 | (601) 729-5600 |