Aertecno Engineering and planning of HVAC, hydric, fire-fighting, and electric installations. http://www.aertecno.it/

Air Systems Engineering, Inc. Design-build construction services for HVAC. Also, supplies 'Automatrix' temperature controls. Fabricates custom sheet metal. Licensed mechanical and electrical engineers. http://www.asei.ws/

AMC Engineers Provides award-winning mechanical and electrical engineering services to clients such as schools, universities, hospitals, airports and federal, state and local government facilities. http://www.amc-engineers.com/

Amcor Engineering Mechanical design, plans, and specifations for HVAC, plumbing, and solar systems for builders, contractors, and architects. http://www.amcorengineering.com/

Arun Chaiseri Consulting Group. Design, construction management, electrical and mechanical design, energy management, architect and interior design. http://www.eptg-acsc.co.th/

BJP Consulting Engineers Complete engineering service for the built environment. Including building security systems, environmental control systems, energy conservation, public health systems. http://www.bjp-uk.com/

Bredson & Associates, Inc. Mechanical, electrical, plumbing and fire protection engineers. http://www.bredson.com/

buildingsafety.com Specializing in hazardous materials and processes and their applications to building codes. http://www.buildingsafety.com/

CDi Mechanical Engineers Mechanical engineering design for HVAC, plumbing, fire protection. http://www.cdime.com/

Constructive Technologies Group, Inc. Engineering firm dedicated to innovative problem-solving in the built environment. The focus of our work is the energy-using systems (HVAC, plumbing, electrical) of buildings. http://www.ctg-net.com

D & J Design Services Provides professional fire sprinkler design, stocklisting, survey, and consulting. Highly experienced engineers. http://www.djdesignservices.com/

Engineering Professionals, Ltd. Professional fire protection engineering firm offering code consultation, systems design, litigation support. http://www.epfire.com/

Eta Provides sustainable building, HVAC, electrical, plumbing (MEP) designs to architects and building owners. http://www.etaengineers.com

Gupex Design and installation of ventilation solutions for corrosive and hostile environments. http://www.gupex.com

Hensall Mechanical Services Heating, ventilation, air conditioning, design build, project management expertise. http://www.hensall.com/

KJWW Engineering Consultants Provides consulting for HVAC, plumbing, fire protection, electrical, telecommunications, and structural engineering. http://www.kjww.com

KOA Engineering Corporation Iranian HVAC contractor. http://www.koa-eng.com/

Logostikon (Pty) Ltd South African-based consultant specializing in HVAC applications http://www.logostikon.co.za

Lundquist, Killeen, Potvin & Bender, Inc. Consulting engineers based in St. Paul, MN. Mechanical and electrical engineering services for buildings. http://www.lkpb.com/

MaGrann Associates Specializes in energy consulting, engineering and other related services for the building and energy industries. http://www.magrann.com