2020 HESNI ANNUAL CONFERENCE 
List of Exhibiting Companies 
Thursday – Friday, May 7–8, 2020  •  NIU Conference Center, Naperville, IL

Airways Systems, Inc.
Allegion
Altorfer CAT Power Systems

American Combustion Service, Inc.
Artec Environmental Monitoring
ASCO Power Services
ASSA ABLOY Door Security Solutions
Automated Logic-Chicago
Bear Construction Company
Berg Engineering Consultants, Ltd.
BMS CAT
CenterPoint Energy Services, Inc.
Civil & Environmental Consultants
Clayton Industries
Code Consultants, Inc.
Critical Environments Professionals, Inc.
CT Mechanical
Earthwise Environmental, Inc.
Emcor Services, Team Mechanical
Environmental Systems Design, Inc.
Facility Health, Inc.
F.E. Moran, Inc. Fire Protection of Northern Illinois
Gallagher Bassett Services, Inc.
Garrett – Callahan
Gehrke Technology
Grainger

H-O-H Water Technology, Inc.
Imbert International
IMEG Corp.
Integrated Facilities Solutions
Jamerson & Bauwens Electrical Contractors, Inc.
J.C. Restoration, Inc.

Johanson Construction Company
Jones & Cleary Roofing Company, Inc.

Kleen Air Service Corporation
Krause Construction
Kroeschell, Inc.
Leopardo Construction Inc.
Michuda Construction Company

Miracle Method
Nalco
Pepper Construction Company
Prime Energy Inc.
Ragnar Benson, LLC
Riley Construction Company
Rose Paving
Sitar Construction
Skender
Specified Technologies Inc. (STI)
Tee Jay Service Company
Temperature Equipment Corporation
Walsh Group
Watertech of America, Inc.
Western Specialty Contractors
Windy City Representatives