| Name | Address, Zip |
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| American Federation Of Labor & Congress Of Industrial Orgs | 180 N Stetson Ave Ste 1529, 60601-6735 |
| American Federation Of State County & Municipal Employees | 917 Washington W Blvd Unit 315, 60607-2203 |
| American Federation Of Musicians Of The Us & Canada | 656 W Randolph St Ste 2e, 60661-2113 |
| American Federation Of Teachers | 1901 W Carroll Ave, 60612-2401 |
| American Postal Workers Union | 4217 S Halsted St, 60609-2636 |
| American Federation Of Teachers | 330 W Webster Ave, 60614-3820 |
| American Federation Of Teachers | 1901 W Carroll Avenue Suite 201, 60612-2401 |
| American Federation Of Teachers | 1901 W Carroll Ave Suite 200, 60612-2401 |
| American Federation Of Government Employees | 820 S Damen Ave, 60612-3728 |
| American Federation Of State County & Munuicipal Employees | 2650 S California Ave 8th Floor, 60608-5125 |
| American Federation Of State County & Municipal Employees | 205 N Michigan Ave Ste 2100, 60601-5958 |
| American Federation Of Government Employees | Po Box 799, 60690-0799 |
| American Federation Of Teachers | 1901 W Carroll Ave 200, 60612-2401 |
| American Federation Of State County & Municipal Employees | 205 N Michigan Ave Ste 2100, 60601-5958 |
| American Federation Of Teachers | 1901 W Carroll Ave, 60612-2401 |
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| American Federation Of State County & Municipal Employees | 4733 S Saint Lawrence Ave Apt 1, 60615-1575 |
| American Federation Of Teachers | 815 W Van Buren St Ste 203, 60607-3567 |
| American Federation Of Teachers | 1901 W Carroll Ave Ste 200/201b, 60612-2401 |
| American Federation Of State County & Municipal Employees | 1950 West Roosevelt Road, 60608-1245 |
| American Federation Of State County & Municipal Employees | 4200 N Oak Park Ave, 60634-1417 |
| American Federation Of State County & Municipal Employees | 7108 N Sheridan Rd, 60626-2935 |
| American Federation Of State County & Municipal Employees | 37 S Wabash Ave, 60603-3002 |
| American Federation Of Teachers | 1901 W Carroll Ave Suite 200, 60612-2401 |
| American Federation Of State County & Municipal Employees | Po Box 201920, 60620 |
| American Federation Of State County & Municipal Employees | 60 W Walton St, 60610-3305 |
| American Federation Of State County & Municipal Employees | 5500 N St Louis Ave, 60625-4625 |
| American Federation Of State County & Municipal Employees | 205 N Michigan Avenue, 60601-5927 |
| American Federation Of State County & Municipal Employees | 8114 S Chappel Ave, 60617-1023 |
| American Federation Of State County & Municipal Employees | 549 E 91st St, 60619-7428 |
| American Federation Of State County & Municipal Employees | 111 S Michigan Ave, 60603-6488 |
| American Federation Of Government Employees | Po Box 804730, 60680-4108 |
| American Federation Of State County | 1322 W Sherwin Ave Apt 1e, 60626-2020 |
| American Federation Of State County & Municipal Employees | Po Box 12499, 60612-0499 |
| American Federation Of State County & Municipal Employees | 205 North Michigan Avenue, 60601-5927 |
| Bakery Confectionery Tobacco Workers And Grain Millers Intl Uni | 5430 W Rice St, 60651-2853 |
| Office And Professional Employees International Union | 430 South Michigan Avenue Aud 620, 60605-1315 |
| Brotherhood Of Locomotive Engineers And Trainmen | 4049 N Mozart St Unit 3 South, 60618-9051 |
| Brotherhood Of Locomotive Engineers And Trainmen | 10924 S Saint Louis Ave, 60655-3320 |
| Education Fund Of The Chicago And Midwest Region | 333 S Ashland Ave, 60607-2703 |
| United Food And Commercial Workers International Union | 1649 W Adams St 2nd Floor, 60612-4819 |
| United Association Of Journeymen & Apprentices Of The Plumbing & Pipe | 45 N Ogden Ave, 60607-1813 |
| Theater Musicians Association- Chicago Area Chapter | 1133 N Dearborn St Apt 2103, 60610-7185 |
| West Suburban Professional Fire Fighters Association | 542 S Dearborn St Ste 710, 60605-1525 |
| House Staff Association Of Cook County | 1900 West Polk Street 803, 60612-3723 |
| National Association Of Letter Carriers | 3850 S Wabash Ave, 60653-1521 |
| National Association Of Postal Supervisors-elizabeth Flamon Branc | Po Box 5121, 60680-5121 |
| International Association Of Fire Fighters | 440 W 43rd St, 60609-2715 |
| Chic & Cook County Bldg & Const Trades Council Labor-man Corp Comm | 1000 Burr Ridge Pkwy 1st Fl, 60606 |
| International Brotherhood Of Boilermakers Iron Ship Builders | 2941 S Archer Ave, 60608-5540 |
| International Brotherhood Of Boilermakers Iron Ship Builders | Po Box 412041, 60641-6341 |
| International Brotherhood Of Teamsters | 6643 N Northwest Hwy, 60631-1300 |
| International Brotherhood Of Teamsters | 4620 S Tripp Ave, 60632-4419 |
| Brotherhood Of Maintenance Of Way Employees | 10848 S Avenue O, 60617-6543 |
| Brotherhood Of Maintenance Of Way Employees | 1910 S Indiana Ave Apt 622, 60616-4330 |
| Brotherhood Of Maintenance Of Way Employees | 3632 W 64th Pl, 60629-4006 |
| International Brotherhood Of Teamsters | 1645 W Jackson Blvd 7th Floor, 60612-3276 |
| International Brotherhood Of Electrical Workers | 2722 S Dr Martin Luther King Jr Dri, 60616 |
| International Brotherhood Of Teamsters | 300 South Ashland Avenue, 60607-2701 |
| International Brotherhood Of Teamsters | 30 N La Salle St Ste 3800, 60602-3854 |
| Carpenters District Council | 12 East Erie St, 60611-2796 |
| Chicago Federation Teachers Union | 1901 W Carroll Ave, 60612-2401 |
| Municipal Employees Society Of Chicago | 7158 W Palmer St, 60707-3233 |
| Staffing Workers Organizing Committee | 1857 W 19th St, 60608-2713 |
| Transportation-communications Union | 6058 S Monitor Ave, 60638-4422 |
| Transportation-communications Union | 10522 S Avenue G, 60617-6321 |
| Transportation-communications Union | 6352 S Ingleside Ave Apt 3, 60637-3662 |
| Retail Wholesale & Department Store Union | 37 S Ashland Ave, 60607-1805 |
| Retail Wholesale & Department Store Union | 333 S Ashland Ave, 60607-2703 |
| Retail Wholesale & Department Store Union | 333 S Ashland Ave, 60607-2703 |
| Retail Wholesale & Department Store Union | 333 S Ashland Ave, 60607-2703 |
| Retail Wholesale & Department Store Union | 333 S Ashland Ave, 60607-2703 |
| Retail Wholesale & Department Store Union | 333 S Ashland Ave Rm 209, 60607-2703 |
| United Electrical Radio & Machine Workers | 5600 Woodlawn Ave 4th Fl, 60637-1623 |
| National Treasury Employees Union | 550 W Jackson Blvd Ste 1500, 60661-5800 |
| National Treasury Employees Union | Po Box 2185, 60690-2185 |
| Service Employees International Union | 2229 S Halsted St, 60608-4521 |
| Service Employees International Union | 2229 S Halsted St, 60608-4521 |
| Service Employees International Union | 300 S Ashland Ave Ste 400, 60607-2746 |
| National Treasury Employees Union | 425 S Financial Pl, 60605-1000 |
| International Federation Of Professional & Techical Engineers | 13417 S Avenue K, 60633-1015 |
| Mobilize Glr Project | 1901 W Carroll Avenue Suite 201, 60612-2401 |
| Unite Here | 1132 S Wabash Ave Ste 606, 60605-2326 |
| Unite Here | 218 S Wabash Avenue 7th Floor, 60604-2449 |
| Unite Here | 218 S Wabash Ave, 60604-2444 |
| Rail Workers United Inc | Po Box 221191, 60622-0010 |
| Industrial Workers Of The World | Po Box 57114, 60657-7345 |
| Industrial Workers Of The World | Po Box 18118, 60618-0118 |
| Industrial Workers Of The World | Po Box 180195, 60618-0027 |
| Industrial Workers Of The World | Po Box 180221, 60618-0002 |
| National Staff Organization | 815 W Van Buren St Ste 203, 60607-3567 |
| National Staff Organization | 5341 N Ludlam Ave, 60630-1411 |
| Old Town Teachers Organization | 1901 W Carroll Ave Ste 200-201b, 60612-2401 |
| United Steelworkers | 3317 S Leavitt St, 60608-6018 |
| United Steelworkers | 7946 S Dorchester Ave, 60619-3409 |
| United Steelworkers | 609 E 113th St, 60628-5148 |
| Workers United | 333 S Ashland Ave Suite 200, 60607-2703 |
| Workers United | 333 S Ashland Ave Suite 200, 60607-2703 |
| Workers United | 333 S Ashland Ave Suite 200, 60607-2703 |
| Workers United | 333 S Ashland Ave, 60607-2703 |
| Workers United | 333 S Ashland Ave, 60607-2703 |
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