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

Illco Inc. is a wholesale distributor of heating, ventilation, air-conditioning and refrigeration equipment, parts and supplies. They offer manufactured materials and aims to keep the highest levels of inventory on hand.

Illinois Tool Works (ITW) is a Fortune 200 global multi-industrial manufacturing leader with revenues totaling $14.5 billion in 2021. The company’s seven industry-leading segments leverage the unique ITW Business Model to drive solid growth with best-in-class margins and returns in markets where highly innovative, customer-focused solutions are required.

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.

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.

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.

Intellihot offers high-tech solutions to these water issues and is leading the charge toward a cleaner, cheaper, safer, and more reliable future. By combining AI with edge technology, Intellihot is prepared to revolutionize the HVAC industry with hot water-as-a-service and change the way water service is delivered.

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.

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.

Jaytech, Inc. is one of the largest and most innovative independent water management and treatment solution providers in the United States. Their solutions include traditional water treatment programs, solid chemical water treatment programs, legionella risk assessments, indoor air quality and hygiene remediation solutions for the “built environment” as well as process water management and consulting for reduction/recycle

JDS HVAC Service LLC in Westfield, NJ, is an HVAC company providing quality heating and air conditioning installation and repair services. They are locally owned, family-operated, fully licensed, bonded, and insured. Their technicians are experienced, skilled, and committed to providing the highest quality services for their customers. They offer senior, military, and first responder (police, firefighter, and EMT) discounts and free estimates.

JJJ Techs Heating and Cooling offers a comprehensive range of services to meet the needs of both residential and commercial clients. The core services include HVAC installation, maintenance, and repair, expert electrical services, and top-quality commercial refrigeration solutions. A team of skilled technicians is dedicated to ensuring your comfort, safety, and peace of mind.

JJJ Techs Heating and Cooling are a trusted HVAC, electrical, and refrigeration solutions partner in Lancaster and Chester Counties of Southeastern, Pennsylvania. They offer a comprehensive range of services to meet the needs of both residential and commercial clients. Their core services include HVAC installation, maintenance, and repair, expert electrical services, and top-quality commercial refrigeration solutions.

Whether they're building water treatment systems for homes or for coffee shops, this water quality manufacturer uses only the best components possible. Which is why they've been using John Guest for 25 years. Hear what Chester Paul Company has to say about John Guest's reliability and support.

John R. Robinson Inc. has been providing quality and reliable tube tool equipment to the global power industry since 1907. Their broad products inventory includes condensers, heat exchangers, chillers and boiler tube cleaning gun, rotary cleaning machine, brushes, shafts, descaler, tube plugs, leak detection, vacuum, installation/removal tools, and gasket cutter.

Johnson Supply is a HVACR wholesale distributors in Texas and Louisiana. They have 24 locations as of date and deals with distribution of products like Condensing Units, Curb Adapters, Packaged - Cool Only & Electric Heat, Packaged - Gas Heat, Evaporator Coils, and Air Handling Units.

Johnstone Supply is a HVACR wholesale distributor. They offer a variety of options in unitary and specialty equipment, repair and replacement parts, and maintenance supplies for Residential, Light Commercial, Refrigeration and Facilities Maintenance.

K-tech Kleening still thrives today as a 2nd-generation family-owned business, providing customers with superior commercial and residential cleaning and restoration solutions.

Kadant Unaflex LLC, based in Anderson, South Carolina, is a leading manufacturer of expansion joints, compensators, and custom-engineered flexible hose for process industries such as petrochemical, power generation, and water treatment, among others.

Key Refrigeration Supply is a Midwest Wholesale Distributor of HVAC/R equipment and parts with 3 locations in Kansas and 3 in Missouri.

Kish Heating and Cooling Inc specializes in the repair, maintenance, and replacement of all makes and models of HVAC equipment

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.

Klondike Air Conditioning and Heating, a family-owned and operated business, has been catering to the heating, air conditioning, indoor comfort, and air quality requirements of Orange County since 1989. Their objective is to deliver superior workmanship in HVAC service, repairs, and installations. From system installations and maintenance to repairs and efficiency upgrades, trust Klondike Air for all HVAC needs.

Kolbi Pipe Marker Co. has been manufacturing mechanical identification for 50 years. They core values are: Quality, Simplicity and Service. Give They a try and you will experience the Kolbi difference.

Komax Systems, Inc. has led the industry in static mixing technology offering a diverse range of Static Mixers, Steam Heaters, Desuperheaters, and Heat Exchangers. With more than three hundred combined years of fluids-mixing experience, the Komax design team has applied Komax technology to a technical base of over one hundred thousand installations world wide.

Krier & Blain have been providing commercial plumbing, heating, and HVAC services to local businesses throughout the Sioux Falls area in the US since 1979. They also provide plumbing systems, medical gas installations, hydronic heating solutions and boiler services.

L&F Electrical Heating & Cooling, Inc. offers lighting installation services, emergency repairs, panel upgrades, generator installations, ductless mini-splits, smart lighting, and more.

LAARS Heating Systems Co. manufactures residential and commercial boilers, volume-water-heaters and commercial pool heaters from 50,000 to 5,000,000 BTU's as well as storage, buffer and solar tanks.

Larry Cook Heating and Cooling provides expert HVAC services in Wichita, specializing in the installation, repair, and maintenance of furnaces, air conditioners, and HVAC systems. They also offer indoor air quality solutions such as air cleaners and humidifiers. Available 24/7 for emergency services, their certified technicians handle all makes and models, ensuring reliable comfort for the home or business year-round.