2019 HESNI ANNUAL CONFERENCE 
List of Exhibiting Companies 
Thursday – Friday, May 2–3, 2019  •  NIU Conference Center, Naperville, IL

Aires Consultants / A. J. Gallagher
Airways Systems, Inc.
Allegion
Altorfer CAT Power Systems

American Combustion Service, Inc.
AQUIS
Artec Environmental Monitoring
ASCO Services
ASSA ABLOY Door Security Solutions
Bear Construction Company
Berg Engineering Consultants, Ltd.
BMS CAT
CenterPoint Energy Services, Inc.
Civil & Environmental Consultants

Critical Environments Professionals, Inc.
CT Mechanical
Dywidag-Systems International
Earthwise Environmental, Inc.
Emcor Services, Team Mechanical
Environmental Systems Design, Inc.
Facility Health, Inc.
F.E. Moran, Inc. Fire Protection of Northern Illinois
Garrett – Callahan
Gehrke Technology
Grainger
HEPACART
The Hill Group/Aero Building Solutions
H-O-H Water Technology, Inc.
Imbert International
IMEG Corp.
Inpro Corporation
Integrated Facilities Solutions
Jamerson & Bauwens Electrical Contractors, Inc.
J.C. Restoration, Inc.

Johanson Construction Company
Jones & Cleary Roofing Company, Inc.

Kleen Air Service Corporation
Kontrol Kube by Fiberlock
Krause Construction
Kroeschell, Inc.
Leopardo Construction Inc.
Mesa Electronics, Inc.
Metropolitan Industries
Michuda Construction Company

Midwest Applied Solutions, Inc.
Nalco
Peoples Gas/North Shore Gas Energy Efficiency Program
Pepper Construction Company
Phigenics, LLC
Prime Energy Inc.
Ragnar Benson, LLC
Reed Construction
Rose Paving
Safe Step, LLC
Sitar Construction
Skender Construction
Specified Technologies Inc. (STI)
STARC Systems
Tee Jay Service Company
Temperature Equipment Corporation
Thermosystems, Inc.
Tovar Snow Professionals
Trane
Victaulic
The Walsh Group
Watertech of America, Inc.
Weldy/Lamont Group, Inc.
Western Specialty Contractors
Windy City Representatives