| Mechanical Contractors Association of America (MCAA) | Chief Engineers of Chicagoland |
| Mechanical Service Contractors of America (MSCA) | Mechanical Contractors Association – Chicago (MCA) |
| Institute of Real Estate Management (IREM) | Refrigeration Services Engineers Society |
| Healthcare Engineers Society of Northern Illinois (HESNI) | American Association of Candy Technologists (AACT) |
| Bedford Park Clearing Industrial Association (BPCIA) | National Fire Protection Association (NFPA) |
| Bricklayers District Council #1 | Chicago Pipefitters – Local 597 |
| Chicagoland Laborers | Mokena Chamber of Commerce |
| CAIC (Calumet Area Industrial Commission) | |
