HARDI is an association dedicated to advancing the science of wholesale distribution in the HVACR industry. HARDI members market and distribute heating, refrigeration, air conditioning equipment and supplies, sheet metal, controls, filters and related items.

At Heartland Heating & Cooling, they're more than just a repair company – they're home comfort specialists. Their team has extensive experience servicing and repairing all makes and models of residential heating and cooling equipment. Their mission is to provide prompt, professional, quality heating & cooling services to their customers in the Central Ohio area, and to build a reputation as being honest and committed to customer satisfaction.

The Heat Exchange Institute (HEI) is a non-profit trade association committed to the technical advancement, promotion, and understanding of a broad range of utility and industrial-scale heat exchange and vacuum apparatus. The primary purpose of HEI is to develop and publish standards which advance the technology, increase the efficiency, and promote the use of heat exchange and vacuum apparatus.

Hex Valve (Richards Industrials) manufacture valves as a means to simplify the piping associated with gauge and differential pressure transmitter applications.

Hexion Inc. serves the global wood and industrial markets through a broad range of thermoset technologies, specialty products and technical support for customers in a diverse range of applications and industries.

HVAC Technologies is transforming the heating and air conditioning industry by educating and empowering consumers and creating new ways for consumers to connect with trustworthy local HVAC contractors.

Integrion Automation, formerly Wauseon Machine’s Automation and Tube End Forming division, delivers transformative automation solutions across diverse industries. With advanced engineering, exceptional service, and relentless innovation, Integrion enables customers to move from complexity to confidence. The company’s certified team specializes in automation consulting, machine design, installation, and lifecycle support.

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.

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.

K & K Heating & Cooling is a trusted HVAC company serving cities around Northeast Ohio, USA. Their team provides HVAC installation services, fast and reliable HVAC repair, and HVAC maintenance services to upkeep the home’s comfort and efficiency. As experienced HVAC contractors, they also specialize in heating and air conditioning repair, furnace repair, and HVAC system diagnostics for both residential and commercial properties.

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.

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.

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

Lau is a supplier of air moving products including commercial and residential propellers, blowers, plenum fans and other HVACR air moving products. Lau operates multiple plants in North America that manufacture a variety of products including centrifugal wheels, axial propellers and motorized packaged units.

leakSMART™ is a patented water mitigation solution that provides complete home water protection with leak detection and monitoring for everything from burst water supply lines, washing machine leaks, and leaks from other everyday appliances and plumbing fixtures throughout the house.

Lute Supply, a multi-state multi-branch wholesale distributor of plumbing, HVAC, kitchen, bath, and hardware had our humble beginnings in a small garage in Portsmouth, Ohio in 1952

Marathon Motors manufactures thousands of products including single and three phase AC, NEMA and IEC, low and medium voltage, PMDC, and radial and axial flux motors.

Manufacturer of round, flat oval, and rectangular HVAC ductwork and related products for commercial, institutional, and industrial applications.

MFM manufactures FlexClad, a self-adhering jacketing system for waterproofing interior or exterior ductwork and pipes. Easy installation and 10-Year Limited Warranty.

Miami Heating & Cooling is a full service heating and air conditioning company that specializes in fulfilling HVAC needs of both residential and commercial customers.

MidWest Materials is a Steel Service Center providing coated, hot rolled, HRPO and cold rolled steel in coil, sheet or plate. Processing includes stretch leveling, corrective leveling and more.

Morrison Products, Inc. (MPI) provides quality air moving equipment (fans and blowers) to HVAC&R markets around the world.

Multi-Wing America specializes in designing custom engine cooling fans, radiator fans, HVAC fans, and refrigeration fans in the U.S., Canada and Mexico. Multi-Wing America’s engineering staff can customize an axial fan solution for virtually any air-moving application.

The National Board of Boiler and Pressure Vessel Inspectors was created in 1919 to promote greater safety to life and property through uniformity in the construction, installation, repair, maintenance, and inspection of pressure equipment.

National Comfort Institute, Inc. (NCI) is an organization that provides heating, air conditioning, plumbing and electrical contractors with a focused offering of services and tools to help them improve their businesses, differentiate themselves, grow, and become more profitable. NCI accomplishes this through membership groups and by providing unique business management, sales, marketing and technical tools, training, support and coaching.

The National Ground Water Association represents groundwater industry professionals including contractors involved in geothermal heat pump drilling and system installation.

New Comfort Heating and Cooling provide residents and businesses in Brookville, Ohio, and the surrounding areas with quality heating and cooling system maintenance, sales, installations, and repair services.

Oatey operates a comprehensive manufacturing and distribution network to supply thousands of products for professional builders, contractors, engineers and do-it-yourself consumers around the world.

Ohio Heating and Refrigeration (OHR) provides commercial and residential HVAC, boilers, building automation, commercial refrigeration, fabrication, and food service equipment.

Overly Hautz Motor Base manufactures and designs the world's most complete line of motor mounting products. They also provide Adjustable motor bases, conversion bases, pivoting and automatic motor bases.