| Name | Address, Zip |
| Local 20 Of South Bend And Vicinity Sheet Metal Industry | 2605 S Main St, 46614-1017 |
| International Assoc Bridge Struct & Ornamental Ironworker Afl-cio 292 | 3515 Boland Dr, 46628-4303 |
| United Brotherhood Of Carpenters & Joiners Of America 413 | 3570 Blackthorn Ct, 46628-6196 |
| International Union United Auto Aerospace & Agricultural Workers | 1426 S Main St, 46613-2206 |
| International Union United Auto Aerospace & Agricultural Workers | 1426 S Main St, 46613-2206 |
| International Union United Auto Aerospace & Agricultural Workers | 740 S Michigan St, 46601-3122 |
| National Air Traffic Controllers Association | 4713 Lathrop St, 46628-4350 |
| International Alliance Theatrical Stage Employees & Moving Picture M | Po Box 474, 46624-0474 |
| International Association Of Heat & Frost Insulators & Allied Workers | 4614 S Burnett Dr, 46614-3822 |
| International Association Of Heat & Frost Insulators & Allied Workers | 1345 Northside Blvd, 46615-3984 |
| United Union Of Roofers Waterproofers And Allied Workers | 1345 Northside Blvd, 46615-3929 |
| International Union Of Painters And Allied Trades | 1345 Northside Blvd, 46615-3929 |
| Amalgamated Transit Union | Po Box 4465, 46634-4465 |
| Laborers International Union Of North America | 23698 Western Ave, 46619-1507 |
| American Federation Of State County & Municipal Employees | 19841 Detroit Ave, 46614-5647 |
| American Federation Of Labor & Congress Of Industrial Orgs | 2015 W Western Ave, 46619-3544 |
| American Federation Of Musicians Of The Us & Canada | 17460 Fleetwood Ln, 46635-1365 |
| American Federation Of State County & Municipal Employees | 1711 Catalpa Ave, 46613-1807 |
| American Federation Of State County & Municipal Employees | 125 Woodhill Ln, 46619-1642 |
| American Federation Of State County & Municipal Employees | 5916 Lansdown Blvd, 46614-6324 |
| American Federation Of Labor & Congress Of Industrial Orgs | 1345 Northside Blvd, 46615-3929 |
| United Association Of Journeymen & Apprentices Of The Plumbing & Pipe | 4172 Ralph Jones Ct, 46628-9793 |
| Plumbers & Pipefitters Joint Apprenticeship Training Commitee | 4172 Ralph Jones Ct, 46628-9793 |
| International Association Of Fire Fighters | 18355 Auten Rd, 46637-2608 |
| International Association Of Fire Fighters | 54837 Quince Rd, 46628-4586 |
| National Association Of Letter Carriers | 1635 N Ironwood Dr, 46635-1891 |
| International Association Of Fire Fighters | Local 362 So Bend 4025 Lincolnway W, 46628 |
| International Brotherhood Of Teamsters | 2405 Edison Rd, 46615-3517 |
| International Brotherhood Of Teamsters | 2405 Edison Rd, 46615-3517 |
| International Brotherhood Of Electrical Workers | 56436 Strasser Ln, 46619-2212 |
| Brotherhood Of Locomotive Engineers & Trainmen | 21080 Morning Dove Trl, 46614-4041 |
| International Brotherhood Of Electrical Workers | 56475 Peppermint Rd, 46619-4594 |
| International Union Uaw St Joseph Laporte County Cap Council | 1426 S Main St, 46613-2206 |
| Industrial Workers Of The World | Po Box 791, 46624-0791 |
| United Steelworkers | 1717 Oliver St, 46613-1633 |
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