Idemitsu is a producer and distributor of a wide range of lubricants, including PVE and PAG refrigeration oil.

iGas USA, Inc. is a veteran in the HVAC industry. Beginning in the early 90s, its sister company began to provide AC contactors, capacitors, plus other components and tools to the two largest AC manufacturers in the United States. iGas USA, Inc. offers a full range of refrigerants. Its strength, and mission, are to develop and bring to the market innovative solutions that will have a positive effect on a company's work and business.

Igniter Systems provides silicon carbide hot surface igniters (120 and 230 volt AGA listed) for gas ignition dryers, furnaces, range ovens, and heaters.

Igor provides smart building platform solutions, It’s Nexos, is a PoE-based IoT smart building platform that incorporates hardware, software and cloud analytics to enable smart and secure buildings. Nexos has the capability to connect all electrical elements of a building - lighting, sensors, fans, blinds, security, emergency lighting, heating and cooling sensors, and so on - into one IoT hub.

IMI Hydronic Engineering is a provider of a range of products and services that enables one to take control, increase efficiency and drive down initial and ongoing costs with innovative and reliable HVAC solutions. They provide a superb range of high-quality products and support services for every type of installation and customer.

The Independent Contractors Exchange (ICE) is a select group of independent HVAC contractors specializing in the service and installation of applied HVAC systems.

Industrial Climate Engineering is a division of Airxcel, Inc. They are the manufacturer of air conditioners from 6,000 to 360,000 both for commercial and industrial applications, including e-houses, telecom sites. Units available for hazardous locations and explosion proof.

Industrial Maid is the premier manufacturer of air purification systems to fit virtually any industrial application or budget. They are an air filtration manufacturer with unmatched customer services, disruptive technology, and a philosophy of continuous improvement. Their unique equipment offerings incorporate environmentally sound components and keep purchase, installation, and operation simple.

Industrial Scientific provides gas detection products and services that keep workers safe in hazardous environments. The company is dedicated to eliminating death on the job by the year 2050.

Infinitum Electric makes electric motors which are used in HVAC products to make them more efficient, durable, light weight and less expensive.

Innovative Dehumidifier Systems are the pioneers of the multifamily housing dehumidifier system, providing the solution to preventing mold growth in homes and multi-resident facilities.

Innovative Energy (I.E.) has been a leader in delivering high-performance reflective insulation products to a growing market of energy-conserving industries.

Innovative Sensor Technology IST AG is one of the manufacturers of physical, chemical and biological sensors. IST AG specializes in the development and manufacturing of thin- and thick-film platinum and nickel RTD temperature sensors, thermal mass flow sensors, capacitive humidity sensors, conductivity sensors and biosensors.

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.

ISA is a manufacturer of vacuum formed ceramic fiber components, and is dedicated to the production of quality product at optimal value. ISA continually improves the quality of its product and processes through the implementation and maintenance of the Quality Management System.

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.

Launched by globally renowned innovators, scientists and engineers, Integrated Viral Protection (IVP) offers novel biodefense technology solutions that have a potential to change the world by eliminating the risk of airborne transmission of the actual SARS-CoV-2 virus and other virus particles.

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.

Intel’s mission is to shape the future of technology to help create a better future for the entire world. By pushing forward in fields like AI, analytics and cloud-to-edge technology, Intel’s work is at the heart of countless innovations. They provide semiconductor design and manufacturing, HVAC solutions, artificial intelligence, autonomous driving, and non-volatile memory solutions.

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.

Intellihot is an energy company dedicated to advancing energy efficient technology and solutions. Intellihot designs, manufactures and assembles tankless water heaters for residential, commercial and industrial applications. Their products include the most advanced tankless water heater for commercial applications.

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.

International Environmental Corporation (IEC) are manufacturers of hydronic fan coil systems for hospitality, multi-family, healthcare, and education. They also offer replacement and retrofit solutions for fan coils in applications where limiting downtime is crucial to a business’ success.

Since 1919, Intertherm has been an integral part of improving the comfort of manufactured homes. They are the only heating and cooling manufacturer to be certified in Demand Flow Technology.

InviAir is a manufacturer of wall and ceiling air diffusers and grilles for HVAC systems. The innovative, flush-mount process allows products to blend discreetly into the interior architecture unlike anything else on the market. Founded by HVAC professionals with over forty years of experience in the industry, InviAir is dedicated to offering some of the best air diffusers and grilles worldwide.

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.

Iowa Precision Industries is a leader in automated HVAC coil lines, duct fabrication systems, seam closers and corner inserters – a company with a rich history that has the experience and proven know-how to develop systems meeting the specific production goals of customers – worldwide. The Fabriduct(R), ProFabriduct(R), Ductomatic, Cornermatic(R), Whisperloc(R), and Elbowmatic machines are the industry’s finest products.

IDC has several designers on staff, each holding various certifications with The Irrigation Association in drip/micro systems, sprinkler systems, and surface irrigation methods. They provide air vents, pumps, pressure regulators, filters, valves, and much more.