INFICON provides industry-renowned tools for HVAC/R service, including refrigerant and combustible gas leak detectors, combustion analyzers, refrigerant charging scales, refrigerant recovery machines, and vacuum pumps. INFICON is a major provider of innovative instrumentation, critical sensor technologies, and advanced process control software that enhance productivity and quality in sophisticated industrial vacuum processes.

Innotec is an innovative LED lighting and technology manufacturer that supplies products through their uniquely automated manufacturing processes. Founded in 1992, it is their continuing mission to expand their full-service supplier capabilities, while striving to retain a small company atmosphere. Headquartered in Zeeland, Michigan, Innotec has expanded operations to major markets around the world, including Hungary, China, Mexico, and India.

Insight Partners provides commercial HVAC equipment and solutions for customers across a variety of markets and industries. With a combined 80+ years of HVAC experience, Insight Partners brings together a network of the best resources, people, and cultivated industry knowledge to give its partners a unique advantage over the complex challenges.

IME provides innovative enterprise software for the home improvement industry. This comprehensive software platform enables retailers to offer a wide range of home improvement products and services to their customers on a nationwide basis, with minimal investment or operational responsibility.

Instant Pierce makes a straight-line puncturing tool for the fast recovery of Refrigerant.

Founded in 1991 in San Diego, California, INTEC Controls is a premier, worldwide provider of gas detection solutions and other peripherals to the commercial HVAC Controls, Energy Management and Building Automation markets. Their inventory includes gas sensors and detection systems, valves, damper actuators, sensors (IAQ, temperature, humidity, pressure, current), stats and interface devices for HVAC controls.

Integrity Heating & Air Conditioning LLC – one stop shop for complete HVAC needs. With their office located in Greenville WI., they provide heating and cooling systems and maintenance to Appleton, Greenville, Kimberly, Kaukauna, Combined Locks, Little Chute, Menasha, Neenah, Sherwood, and all of the Fox Cities area of Wisconsin.

Intelligent Mobile Support (IMS) created Sales Builder Pro to serve residential HVAC contractors and other in-home service providers like plumbing, electrical, and home warranty. Sales Builder Pro - market leading software that helps contractors boost average tickets and win rates.

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.

ICP is a part of Carrier, a provider of innovative HVAC, refrigeration, fire, security and building automation technologies. They provide Rrsidential and light commercial heating and air conditioning products, condensing units, furnaces, heat pumps, accessories, 2-25 ton rooftop units.

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.

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.

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.

Established to serve wholesale distribution, iO HVAC Controls offers unique products from multiple sources for a variety of applications. From wireless relays to fresh air ventilation controls, the company's solutions are designed to be easy to install, cost-effective and profitable.

IonicBlue® is a joint venture between Johnson Controls, the global pioneer in delivering energy and infrastructure solutions, and Apollo Global Management a leading, global alternative asset manager. They deliver a total solutions approach through the expertise of Johnson Controls and the unmatched ability of Apollo to provide alternative capital solutions.

Irr Supply Centers, Inc. is a renowned distributor of Plumbing, Heating, Cooling, Electrical, and Refrigeration products serving a wide range of customers throughout Western/Central New York and Northern Pennsylvania.

Mestek Machinery has a long history of providing reliable and long-lasting duct work machinery and sheet metal bending equipment. They offer complete machine rebuild and modernization service for most of our Vulcan cutting systems, rollforming lines or duct fabrication lines.

ISS Mechanical is a 'Service First' Mechanical Contractor. They specialize in the service, maintenance, repair and replacement of air conditioning, chillers, controls and refrigeration equipment for existing Commercial, Healthcare and Industrial Facilities. Their service area is Central Florida, with offices in Orlando and Tampa, Florida. They are able to provide mission critical and emergency service to facilities throughout Central Florida.

ItuGraf is the most efficient radiant ceiling system on the market. It is ideal for the management of heating systems in buildings of all sizes, for both new buildings and renovation projects. ItuGraf heating and cooling panels effectively create a comfortable room temperature without dust, drafts or noise, and significantly improve indoor climate.

J & J Air Conditioning provides comprehensive HVAC services to commercial and industrial clients. They utilize evolving technology to find new and innovative ways to serve their customers.

J Flow Products is a parts and service provider. They give their customers good quality parts, tools and supplies at a fare price to help them do there job better and easier. The products include HVACR, Automotive and Specialty Products.

J.B. Hunt’s temperature controlled shipment options include intermodal, full truckload and less-than-truckload and range from frozen to freeze protect. Their visibility technology provides a full view of each shipment along the way, so one knows that their freight is delivered on time and according to specs.

J2 Innovations develops easy-to-configure and use software platform for building automation and IoT applications, FIN Framework (FIN). FIN Stack is used by manufacturers of products or systems that are used in buildings.

Jackery, the world's pioneering innovative portable power and green outdoor energy solution provider founded in California in 2012, is a global top-selling solar generator brand born with a mission to offer green energy to everyone, everywhere. Jackery launched its first outdoor portable power stations in 2016 and developed its first portable solar panels in 2018.

Jackson Comfort Services offer 24/7/365 emergency service. Heating, Cooling, and Plumbing Specialists serving Northeast Ohio for 100 years. Its commercial and residential heating and air conditioning services include repairs, maintenance, and new installations. It also provides plumbing services for residents.