| Chicago and Midwest Regional Joint Board | Related tax-exempt org | Labor union | IL | 362938055 |
| Sidney Hillman Health Centre | Related tax-exempt org | Provide health care | IL | 362245908 |
| Accurate FELT & Gasket | Related taxable corporation/trust | Contributing employer | — | — |
| Alsco - American Linen Divsteiner | Related taxable corporation/trust | Contributing employer | — | — |
| Amalgamated Bank of Chicago | Related taxable corporation/trust | Contributing employer | — | — |
| Aramark Uniform Services | Related taxable corporation/trust | Contributing employer | — | — |
| Curto-Ligonier Foundaries | Related taxable corporation/trust | Contributing employer | — | — |
| Custom Plastics | Related taxable corporation/trust | Contributing employer | — | — |
| Excelled Sheepskin | Related taxable corporation/trust | Contributing employer | — | — |
| Front Line Apparel Group | Related taxable corporation/trust | Contributing employer | — | — |
| General Linen and Uniform Service | Related taxable corporation/trust | Contributing employer | — | — |
| GOLD Standard Bakery | Related taxable corporation/trust | Contributing employer | — | — |
| Guaranteed Rate Field | Related taxable corporation/trust | Contributing employer | — | — |
| Hilton Management LLC | Related taxable corporation/trust | Contributing employer | — | — |
| HLT Drake LLC | Related taxable corporation/trust | Contributing employer | — | — |
| HLT Palmer House LLC | Related taxable corporation/trust | Contributing employer | — | — |
| Hyatt Regency - Chicago | Related taxable corporation/trust | Contributing employer | — | — |
| LEVY Restaurants - United Center | Related taxable corporation/trust | Contributing employer | — | — |
| LEVY Restaurants - Wrigley Field | Related taxable corporation/trust | Contributing employer | — | — |
| Libra Industries | Related taxable corporation/trust | Contributing employer | — | — |
| Macy's - State Street | Related taxable corporation/trust | Contributing employer | — | — |
| Medclean - Villa Park | Related taxable corporation/trust | Contributing employer | — | — |
| Mickey's Linen | Related taxable corporation/trust | Contributing employer | — | — |
| Midway CAP Company | Related taxable corporation/trust | Contributing employer | — | — |
| National Container Group | Related taxable corporation/trust | Contributing employer | — | — |