- ACP International, Oklahoma City, OK
- Air Factors LOK, Pleasanton, CA
- Air Movement and Control Association (AMCA), Arlington
Heights, IL
- Air Systems Components, Richardson, TX
- American Society of Heating, Ventilating & Air
Conditioning Engineers, Atlanta, GA
- BVA Systems, Scarborough, Ontario, Canada
- Caterpillar Tractor Company, Peoria, IL
- Dinwiddie Construction, Getty Art Center, Los Angeles, CA
- Eastern Sheet Metal Co., Cincinnati, OH
- Hart & Cooley, Holland, MI
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- Johns Manville Corporation, Denver, Co.
- Krueger-Rink, Tucson, AZ
- Lawrence Livermore National Laboratory, Nevada Test Site, NV
- Lindab, Stamford, CT
- Metal Form Corporation, Phoenix, AZ
- Omni Duct Systems, Aneaheim, CA
- Oreco Duct Systems, Baldwin Park, CA
- Ruskin, Kansas City, MO
- SEMCO Manufacturing Company, Columbia, MO
- Spiral Pipe of Texas, Fort Worth, TX
- Superior Air Handling Corporation, Salt Lake City, UT
- Transonics, Fort Worth, TX
- VAW Systems, Winnipeg, Manitoba, Canada
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