| Business | Phone |
| International Assoc-Machinists 50 W Oakton St, Des Plaines 60018 | (847) 299-8144 |
| Intl Brotherhood-Teamsters 10600 W Higgins Rd 724, Des Plaines 60018 | (847) 296-6220 |
| Laborers 2500 E Devon Ave 101, Des Plaines 60018 | (847) 803-9900 |
| Misc Wrhser Union Local 781 200 Howard Ave 216, Des Plaines 60018 | (847) 298-9999 |
| Iamaw 50 W Oakton St, Des Plaines 60018 | (773) 694-3898 |
| Iubac Des Plaines 60018 | (847) 390-9425 |
| Stonehard 6400 Shafer Ct, Des Plaines 60018 | (847) 292-0513 |
| Transport Workers 232 Howard Ave, Des Plaines 60018 | (847) 298-4871 |
| Transport Workers Union 3166 S River Rd 36, Des Plaines 60018 | (847) 299-4871 |