| Business | Phone |
| Uaw Local 592 112 N 2nd St, Rockford 61107 | (815) 962-0600 |
| United Auto Workers Local 3600 N Main St, Rockford 61103 | (815) 877-7958 |
| Teamsters Retiree Club 5533 11th St, Rockford 61109 | (815) 873-0624 |
| Local 880 Svc Employee Intl 204 N Church St, Rockford 61101 | (815) 963-3738 |
| Illinois Federation-Teachers 212 S 1st St, Rockford 61104 | (815) 636-8354 |
| Iupat Local 607 3316 N Publishers Dr, Rockford 61109 | (815) 873-8833 |
| Laborers Local 4477 Linden Rd F, Rockford 61109 | (815) 873-8875 |
| Plumbers & Pipe Fitters 4525 Boeing Dr 1, Rockford 61109 | (815) 397-8350 |