Members
- Acme Cryogenics
- ACV Enviro
- Adler Tank Rentals
- Advertising Flag Company
- AECOM
- Aeropres Corporation
- American Combustion Service, INC.
- Amex Nooter, LLC
- AMS Mechanical Systems, INC.
- AmSty
- Analytic Stress Relieving, Inc.
- Anthony Roofing
- Apollo Colors, INC.
- APTIM
- Argonne National Laboratory
- Atkore International
- Aux Sable Liquid Products
- Badger Daylighting Corp.
- Baish Excavating, INC
- Barnhart Crane
- BLAC Inc. Valves & Actuators
- BMWC Constructors, Inc.
- Bluestone Specialty Chemicals
- BP Products North America, Inc.
- Brand Safway LLC
- Brandenburg Industrial Service Company
- Brieser Construction Co
- Brock Industrial Service, LLC
- Brown and Root Industrial Services Construction and Maintenance
- Bunge Loders Croklaan
- Burns & McDonnell
- Canal Terminal Company
- Capital Industrial Coatings, LLC.
- Carrier & sandstedt Ent. Inc.
- Catalyst Handling Resources, Inc.
- Chellino Crane Inc.
- Chicagoland Drug Testing Inc.
- CITGO Petroleum Corporation
- Civil & Environmental Consultants
- Clean Harbors Environmental Services, Inc.
- CMC America Corporation
- Command Group, LLC - Mechanical, Insulation & Ventilation
- Construction Safety Services, INC.
- Contractors Assoc. of Will & Grundy Counties
- Crowther Roofing & Sheet Metal, INC.
- D Construction Inc.
- Dearborn Companies
- Depue Mechanical, INC.
- Diversified CPC International
- DLZ Industrial, LLC