| Business | Phone |
| Mississippi American Fdrtn 1140 Pass Rd, Gulfport 39501 | (228) 868-1397 |
| Plumbers & Steamfitters 1237 Pass Rd, Gulfport 39501 | (228) 863-1853 |
| Ibew 2411 32nd, Gulfport 39501 | (228) 863-4705 |
| Ibew 2417 32nd St, Gulfport 39501 | (228) 863-9881 |
| International Longshoremen's 2223 29th Ave, Gulfport 39501 | (228) 863-5144 |
| International Union-Oper Engrs 1921 24th Ave, Gulfport 39501 | (228) 863-1292 |