| Name | Address, Zip |
| Kalamazoo County Education Association Service Units 5-a & B | 5600 Portage Road, 49002-1790 |
| International Union United Auto Aerospace & Agriculture Workers | Po Box 443, 49004-0443 |
| International Union United Auto Aerospace & Agricultural Workers O | 1251 N 5th St, 49009-8509 |
| International Union United Auto Aerospace & Agricultural Workers O | 5111 E Ml Ave Ste A120, 49048-8584 |
| Utility Workers Union Of America Afl-cio | 3026 Lovers Ln, 49001-3702 |
| Amalgamated Transit Union | 326 W Kalamazoo Ave Suite 204b, 49007-3361 |
| American Federation Of State County & Municipal Employees | 3108 Mill Creek Dr Apt 3, 49009-9498 |
| American Federation Of State County & Municipal Employees | 6125 Fairgrove St, 49009-1892 |
| American Federation Of State County & Municipal Employees | 5380 Holiday Ter Ste 32, 49009-2128 |
| American Postal Workers Union | 2970 S 9th St, 49009-9451 |
| American Federation Of Labor & Congress Of Industrial Orgs | Po Box 3248, 49003-3248 |
| American Federation Of State County & Municipal Employees | 213 Devon Ave, 49004-1204 |
| American Federation Of Musicians Of The Us & Canada | 616 N Dartmouth St, 49006-3022 |
| American Federation Of Teachers | 806 S Westnedge Ave, 49008-1162 |
| American Federation Of Teachers | 806 S Westnedge Ave, 49008-1162 |
| American Federation Of Teachers | Po Box 446, 49004-0446 |
| Kalamazoo Municipal Employees Association | 141 East Michigan Avenue, 49007-3952 |
| Western Student Education Association | 1903 W Michigan Ave Stop 5229, 49008-5200 |
| Kellogg Faculty Association Mea-nea | 5505 Gull Prairie Way, 49048-3011 |
| National Association Of Power Engineers Inc | Po Box 2053, 49003-2053 |
| Gull Lake Education Association | 4314 S Westnedge Ave, 49008 |
| Otsego Education Association | 4341 S Westnedge Ave Ste 120, 49008-3289 |
| National Rural Letter Carriers Association | 3923 Devonshire Ave, 49006-2734 |
| Kalamazoo Public Safety Officer Association | 150 E Crosstown Pkwy Ste A, 49001-2879 |
| National Association Of Letter Carriers | 5111 E Ml Ave Ste A75, 49048-8588 |
| International Brotherhood Of Teamsters | 3330 Miller Rd, 49001-4150 |
| International Brotherhood Of Electrical Workers | 3641 E Cork St, 49001-4644 |
| Kalamazoo County Law Enforcement Labor Fund | Po Box 50591, 49005-0591 |
| United Steelworkers | 805 Arthur Ave, 49048-2203 |
| United Steelworkers | Po Box 2195, 49003-2195 |
| United Steelworkers | Po Box 2002, 49003-2002 |
| United Steelworkers | 4375 S 4th St, 49009-9638 |
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