| Business | Phone |
| Af-Lagc Building Trades 801 Saint Francis St, Mobile 36602 | (251) 438-4765 |
| Alabama Classified School 450 Government St, Mobile 36602 | (251) 432-2401 |
| American Postal Workers Union 4538 Shipyard Rd, Mobile 36619 | (251) 662-1970 |
| Apprentice Training 2456 Old Shell Rd, Mobile 36607 | (251) 479-7503 |
| Bricklayers & Allied Crftwrkrs 1108 Spring Hill Ave, Mobile 36604 | (251) 433-1717 |
| Carpenters Pile Drivers 53 W Midtown Park, Mobile 36606 | (251) 471-1205 |
| Communications Workers-America 908 Butler Dr, Mobile 36693 | (251) 661-2011 |
| Ibew 2244 Halls Mill Rd, Mobile 36606 | (251) 476-0275 |
| Ila 279 N Washington Ave, Mobile 36603 | (251) 438-5187 |
| Ila Alabama State Docks, Mobile 36602 | (251) 433-7836 |
| International Alliance 3609 York Rd, Mobile 36605 | (251) 476-9614 |
| International Brotherhood 1610 Government St, Mobile 36604 | (251) 476-2385 |
| International Longshoremen's 951 Government St, Mobile 36604 | (251) 433-1633 |
| International Union-Oper Engrs 801 Spring Hill Ave, Mobile 36602 | (251) 432-3328 |
| Mobile Public Employees 4367 Downtowner Loop N, Mobile 36609 | (251) 343-3300 |
| Mobile Public Employees Union 771 Lakeside Dr, Mobile 36693 | (251) 602-1662 |
| National Assn-Letter Carriers 659 Dauphin St, Mobile 36602 | (251) 438-9224 |
| National Postal Handlers Union 4538 Shipyard Rd, Mobile 36619 | (251) 662-1273 |
| Pace International Union 2756 Nall St, Mobile 36607 | (251) 471-2245 |
| Pace International Union 3737 Government Blvd # 312, Mobile 36693 | (251) 666-0477 |
| Painters & Allied Trades Union 659 Dauphin St, Mobile 36602 | (251) 432-0133 |
| United Automobile & Aerospace 3451 Dauphin Island Pkwy, Mobile 36605 | (251) 473-9888 |
| Teamsters Chauffers Warehouse 112 S Broad St, Mobile 36602 | (251) 433-1521 |
| Southwest Alabama Labor Cncl 2458 Old Shell Rd, Mobile 36607 | (251) 478-9060 |
| Seafarer's International Union 1640 Dauphin Island Pkwy, Mobile 36605 | (251) 478-0916 |
| Sheet Metal Workers 2459 Eslava Creek Pkwy, Mobile 36606 | (251) 476-1900 |