| Business | Phone |
| United Transportation Union 230 N Sycamore St C, Lansing 48933 | (517) 482-8200 |
| Uswa 1352 Roosevelt Ave, Lansing 48915 | (517) 485-6027 |
| Uwua Local 15429 S Airport Rd, Lansing 48906 | (517) 321-2595 |
| American Federation-State Empl 1034 N Washington Ave, Lansing 48906 | (517) 487-5081 |
| Uaw 1010 River St, Lansing 48912 | (517) 371-3104 |
| Uaw 2114 N East St, Lansing 48906 | (517) 485-5853 |
| Uaw Grand Tower 235 S Grand Ave, Lansing 48933 | (517) 372-0053 |
| Uaw Lansing Drop Forge Unit 2807 S Martin L King Jr Blvd, Lansing 48910 | (517) 393-6681 |
| Uaw Local State Employees 6000 520 Cherry St, Lansing 48933 | (517) 484-6000 |
| United Auto Workers 3204 W Saint Joseph St, Lansing 48917 | (517) 487-1753 |
| Uaw Local 426 Clare St, Lansing 48917 | (517) 372-7581 |
| United Auto Workers 4400 W Mount Hope Hwy, Lansing 48917 | (517) 885-6533 |
| United Auto Workers 450 Clare St, Lansing 48917 | (517) 482-7377 |
| United Auto Workers 5135 S Pennsylvania Ave, Lansing 48911 | (517) 887-2522 |
| United Auto Workers Cap Cncl 210 Clare St, Lansing 48917 | (517) 482-1653 |
| United Auto Workers Uaw 2510 W Michigan Ave, Lansing 48917 | (517) 372-4626 |
| Teamsters & Chauffers Union 5800 Executive Dr, Lansing 48911 | (517) 887-2944 |
| Bricklayers & Allied Craftsmen 3321 Remy Dr, Lansing 48906 | (517) 886-9781 |
| Michigan Regional Carpenters 2310 W Washtenaw St, Lansing 48917 | (517) 484-1301 |
| Cement Mason & Plasterers 4209 S Pennsylvania Ave, Lansing 48910 | (517) 882-3931 |
| Central Michigan Arena Local 419 S Washington Sq, Lansing 48933 | (517) 372-2346 |
| Sheet Metal Workers Afl 801 S Holmes St, Lansing 48912 | (517) 374-7337 |
| Cmal 4800 Collins Rd, Lansing 48924 | (517) 332-4391 |
| Communications Workers-America 320 Clare St, Lansing 48917 | (517) 372-4040 |
| Elevator Constructers 5800 Executive Dr, Lansing 48911 | (517) 882-0100 |
| Plumbers & Pipefitters Union 5405 S Martin L King Jr Blvd, Lansing 48911 | (517) 393-5480 |
| Office & Professional Employee 838 Louisa St A, Lansing 48911 | (517) 887-8844 |
| Msea 6035 Executive Dr 204, Lansing 48911 | (517) 394-5900 |
| National Postal Mail Handlers 4800 Collins Rd, Lansing 48924 | (517) 203-0387 |
| Heat & Frost Installators 3010 S Canal Rd, Lansing 48917 | (517) 322-2194 |
| Michigan Assn-Govt Employees 6920 S Cedar St 4, Lansing 48911 | (517) 694-3123 |
| Aft Michigan 419 S Washington Sq 301, Lansing 48933 | (517) 371-4300 |
| Michigan Professional Employee 419 S Washington Sq, Lansing 48933 | (517) 484-1035 |
| Michigan Professional Emplys 1026 E Michigan Ave, Lansing 48912 | (517) 482-1737 |
| Michigan Regional Carpenters 550 Grand St, Lansing 7302 | (201) 332-9900 |
| Michigan State Aflcio 419 S Washington Sq 200, Lansing 48933 | (517) 487-5966 |
| Michigan State Bldg & Constr 435 S Washington Sq, Lansing 48933 | (517) 484-8427 |
| Michigan State Firefighters 419 S Washington Sq, Lansing 48933 | (517) 485-8360 |
| Michigan State Utility Workers 110 W Lenawee St, Lansing 48933 | (517) 372-8011 |
| Hrdi 419 S Washington Sq 300, Lansing 48933 | (517) 372-0784 |
| Ibew 5205 S Pennsylvania Ave, Lansing 48911 | (517) 393-5530 |
| Ibew 601 N Larch St B, Lansing 48912 | (517) 482-3131 |
| Ingham County Employees Assn 422 Elmwood Rd 166, Lansing 48917 | (517) 327-9960 |
| International Union-Oper Engrs 5914 Executive Dr, Lansing 48911 | (517) 393-0400 |
| Ironworkers 5405 S Martin Luther King Blvd, Lansing 48911 | (517) 882-3078 |
| Local 4911 Union 2722 E Michigan Ave 205, Lansing 48912 | (517) 272-5865 |
| Laborers International Union 4209 S Pennsylvania Ave, Lansing 48910 | (517) 393-9464 |
| Lansing Firefighters 419 S Washington Sq, Lansing 48933 | (517) 371-1160 |