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.

ISCO Industries is a global customized piping and other HVAC solutions provider based in Louisville, Kentucky, USA. ISCO stocks and sells a wide variety of piping materials and provides solutions for various environmental, geothermal systems, industrial, landfill, mining, municipal, nuclear, waterworks and culvert-lining applications worldwide.

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. F. Ahern Co is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and service projects.

J.L. Brady Company LLC offers dependable, quality service to homeowners in the Quad Cities community for over 100 years. Their experienced technicians are well-trained and knowledgeable on all HVAC products, so the customers can be confident knowing that they can trust the company.

At JAX Refrigeration, Inc., they recognize that their clients, big and small, have unique industrial cooling system needs. Therefore they provide individualized solutions to most directly and cost-effectively build and maintain industrial refrigeration systems.

JML Heating & Cooling Inc. is a fully licensed and equipped company to offer users a complete range of HVAC services. They have both the technical expertise as well as the experience to know how to handle all jobs, big or small.

Johansen & Anderson is the premier HVAC company providing quality air conditioner installation and repair, furnace installation and repair, and refrigeration installation and repair for both residential and commercial buildings.

At John C. Flood, they diagnose and treat problems from the most common to the most complicated, including air conditioning, heating, and furnace repairs. Their HVAC team is also equipped to improve the home’s indoor air quality with a whole-home air purifiers and air scrubber installation services.

Johnson Brothers is a pioneer in the roll forming industry. They deal with rolled formed metal products: filter frames, rings, clamps, channels, panels, reflectors, mouldings. They also cater to tubing: open seam, split seam, finned and flanged seam, lock seam.

JRC Mechanical specializes in mechanical and plumbing systems for large commercial buildings, hospitals, hotels, schools, and government facilities. They provide Plumbing, Mechanical, HVAC, Design-Build, Med-gas systems, and Refrigeration solutions.

JW Hanson Heating & Air company is a most reliable and reputed name in North Bay and San Francisco. They have earned huge popularity especially for their fast, perfect and on time work. They are experts in commercial high-efficiency heating and ventilation unit, residential heating and cooling system, air conditioning system set up, and repair services.

Kano is an Industrial Specialty Chemicals - manufacturer and distributor of Kroil and Aero Kroil to loosen frozen metal parts, serving the HVAC market since 1939.

Ken's Heating & Air Conditioning has been helping residents keep their homes and business comfortable for many years. They are locally owned and operated. They are a fully licensed and fully staffed HVAC contractor with the size and capability to meet all the needs.

Kimberly-Clark provides particulate and gas-phase filtration media for use in HVAC filters for commercial, industrial, and residential applications.

Kimre is a reputed name among process engineers, environmental engineers, and production managers as a trusted provider of air cleaning technologies for a wide range of industries like fertilizer, sulphuric acid, and power plants. The emission control achieved by Kimre is often taken as global standards.

Kimre is a reputed name among process engineers, environmental engineers, and production managers as a trusted provider of air cleaning technologies for a wide range of industries like fertilizer, sulphuric acid, and power plants. The emission control achieved by Kimre is often taken as global standards.

Kinetics Noise Control, Inc. is a manufacturer and provider of innovative solutions to control airborne noise, structure-borne vibration, create quiet spaces and restrain non-structural building systems.

Klein Tools of professional hand tools and occupational protective equipment, Klein Tools' product line has grown to include virtually every major type of hand tool used in the electrical and telecommunications markets, as well as for aviation, construction, electronics, mining and general industry.

Klimaire has brought value and comfort to homeowners, with millions of units sold in more than 70 countries around the world. The quality of the design and manufacturing of Klimaire products are well-known in the industry. The products are tested in some of the worlds harshest weather conditions.

KMC Controls is an independent American manufacturer of building automation and IoT solutions for system integrators, system distributors, IT providers and OEM partners.

Knauf Insulation manufactures thermal and acoustical glass mineral wool insulation for residential, commercial and industrial applications. They also deal with air duct board, duct liners, duct wrap, and pipe insulation.

Koch Filter is a manufacturer of air filtration products for commercial, industrial, hospital, gas turbine and paint filtration applications. Koch Filter is recognized globally for its premier brand of high efficiency air filtration products.

Koger Air Corporation is a family-owned and operated business specializing in the design, manufacturing, installation and ongoing service of industrial pneumatic and material-conveying systems. They offer a complete line of industrial sheet metal components for sheet metal shops, contractors and resellers. The experts design, build, install and service heavy-duty industrial air moving systems for dust-producing industries throughout North America

KOSTAL Industrie Elektrik provides its customers with innovative solutions in three core product fields: photovoltaics, the INVEOR line of drive controllers, and instrumentation and control electronics.

Krueger is a manufacturer of air distribution solutions, delivering quality, innovative products and providing first-class customer service to the HVAC industry. They offer grilles, registers, terminal units, fan coils, blower coils, diffusers, underfloor products, critical room products, fan filter units, displacement ventilation, and chilled beams.