Industrial Combustion is a manufacturer of burners designed for commercial, industrial, and institutional applications. Their burners are developed to deliver an impressive return on investment.

Industrial Refrigeration Consortium provides training, research and technical expertise on industrial (ammonia) refrigeration systems. The IRC is a collaborative effort between the University of Wisconsin-Madison and industry.

Informa Markets creates platforms for industries and specialist markets to trade, innovate and grow. Through more than 450 international B2B brands, it provides opportunities to engage, experience, and do business via live and virtual experiences, specialist digital content, and actionable data solutions.

Institute of Domestic Heating & Environmental Engineers is the pre-eminent professional body for the approved heating engineer. The prime objective of the IDHEE is to raise the standards of domestic heating installations through education, to which end IDHEE Education has developed the Domestic Heating Design Course, and continues to develop further courses to enhance the knowledge of installers in general and its members in particular.

The Institute of Refrigeration provides a central resource for people from all over the world to improve the application of refrigeration and allied fields for the general good of society with particular emphasis on environment, efficiency, safety, and innovation.

International Accreditation Forum (IAF) is the world association of Conformity Assessment Accreditation Bodies. Its primary function is to develop a single worldwide programme of conformity assessment, which reduces risk for business and its customers by assuring them that accredited certificates may be relied upon.

The International Code Council is a member-focused association. It is dedicated to developing model codes and standards used in the design, build and compliance process to construct safe, sustainable, affordable and resilient structures. The I-Codes are a complete set of comprehensive, coordinated building safety and fire prevention codes.

The ICRA is an association dedicated to promoting good standards of quality remanufacturing, ethical business practice and in providing education and training to its members for their benefit and to the air-conditioning and refrigeration service industry at large.

A nonprofit association founded in 1909 comprising over 2,100 district energy and CHP system managers, engineers, consultants and equipment suppliers from 25 countries.

The International Environment Agency (IEA) is the global energy authority, providing data, analysis, and solutions on all fuels and all technologies. They help governments, industry, and citizens make good energy choices.

International Facility Management Association (IFMA) is the world's largest and most widely recognized international association for facility management professionals, supporting over 23,000 members in more than 10​0 countries.

International Ground Source Heat Pump Association is an association of companies, professionals and users dedicated to promoting the science, utility and use of geothermal (ground source) heating and cooling technology.

The International Institute for Sustainable Laboratories (I2SL) is devoted to the principles of sustainable laboratories and related high-technology facilities, from design to engineering to operation. Through worldwide partnerships and the exchange of technical expertise, I2SL will encourage the development of high-tech facilities that address the rapid pace of science, medicine, research, and development in a dynamic environment.

IIAR is the world's renowned advocate for the safe, reliable and efficient use of ammonia and other natural refrigerants. IIAR members share their collective knowledge and experience to produce consensus documents that address various aspects of the natural and industrial refrigeration industry. IAR sets the standard for providing advocacy, education and the most up-to-date technical information to the ammonia and natural refrigeration community.

The International Institute of Refrigeration is the only independent intergovernmental science and technology based organization which promotes knowledge of refrigeration and associated technologies and applications on a global scale that improve quality of life in a cost effective and environmentally sustainable manner.

iPHA is a global network of Passive House stakeholders including architects, planners, scientists, suppliers, manufacturers, policymakers, contractors, property developers, and more! Its membership network encourages the exchange of Passive House knowledge, providing members with a range of benefits and advocating for Passive House in policy, the media, and amongst the general public, and the entire range of construction professionals.

ITI supports apprenticeship and advanced career training for union workers in the sheet metal industry throughout the United States and Canada. Located in Fairfax, Virginia, the ITI produces a standardized curriculum supported by a wide variety of training materials free of charge to apprentices and journey-level workers who work in the following specialized disciplines: Architectural Sheet Metal, Building Information Modeling,& HVAC Service.

The International WELL Building Institute (IWBI) is the movement to promote health and wellness in buildings and communities everywhere. IWBI delivers the WELL Building StandardTM, and a professional suite of tools to empower the global community. They believe that buildings should be developed with people's health and wellness at the center of the design.

JayKay Sales Company is an HVAC manufacturer's representative agency dedicated to providing professional, competent, and courteous sales and service support to customers of the high-quality manufacturers we represent.

KNF Neuberger, Inc. is a pioneer in gas and liquid diaphragm pumps for OEM, process, and laboratory customers. KNF combines technical expertise and manufacturing leadership to address application-specific challenges for an ever-growing list of markets that includes medical device and diagnostics, environmental/industrial hygiene, laboratory equipment, reprographics, security and defense, semiconductor, energy, various process industries, and more

Koch Air, LLC has been a privately owned, full service distributor of Carrier, Bryant, and Payne residential and commercial HVAC equipment, parts, supplies and tools. Other lines include Totaline, Honeyell, Aprilaire, NuCalgon, Modine, Takagi, Slant/Fin, and many more.

Lazco Corp. buys and sells surplus HVAC equipment, compressors, chillers, cooling towers, rooftops, boilers, generators and Liebert A/C units.

Linear Air Diffusers are specialists in commercial grade aluminum linear slot diffusers, linear bar grilles, and custom plenums. They have been manufacturing air diffusion products such as: Air Grilles, Registers, and Diffusers (GRD’s) for over 40 years. Their business model is based on devoted investments with the use of modern robotics manufacturing, 3D rapid prototyping, computational fluid dynamics simulations (CFD), and BIM.

Lobell Sales, LLC represents quality manufacturers servicing wholesale distributors and OEM's in the HVAC/R, appliance parts, electrical, and plumbing industries in Alabama, Arkansas, Florida Panhandle, Louisiana, Mississippi, and Tennessee.

LouisianaGroup offers premier sales representation to all sectors of the HVAC and Refrigeration markets throughout the state of Louisiana. AccountManagers are dedicated to customers' needs and are supported by market and sales specialists.

M&K Heating and Air Conditioning provides home comfort solutions in London and surrounding communities.

Maitz Home Services is listed as an essential business and are OPEN. They take extraordinary precautions to assure the safety of the employees and the clients.

The Mechanical Contractors Association of America (MCAA) serves the unique needs of approximately 2,600 firms involved in heating, air conditioning, refrigeration, plumbing, piping, and mechanical service.

MSCA is a renowned organization for HVACR contractors, providing education, marketing, and labor/management services to assure its contractor members deliver quality performance, value and expertise for all building system needs.

Messe Frankfurt is the trade fair, congress and event organizer with its own exhibition grounds. The wide range of services includes renting exhibition grounds, trade fair construction and marketing, personnel and food service.