HH Technologies® is widely recognized as a supplier of high-performance, automated door systems, portable evaporative cooling systems and contract manufacturing services to other OEM companies. Since 1978, their on-site engineering and manufacturing operations in Bremen, Alabama has produced the most respected brands within the markets that they serve.

Hi-Tech Blowers, Inc. is a manufacturer of blower wheels and fan blades, used in such diverse applications as HVAC, cooling and refrigeration, electronics, air curtains, and automotive, industrial, and medical equipment. They also manufacture strip, tablock and crossflow blower wheels and housings; fan blades.

Hibouair provides an affordable air quality monitoring device with a simple setup that provides all environment data for observations CO2, VOC, PM, pressure, temperature, and humidity for a healthy environment.

No matter what problem users are having with the plumbing in their Denver home, High 5 Plumbing can help. Whether they need help with the sewer line, drains, water heater, or any other part of the home plumbing system, they are on hand to help the users.

Highside Chemicals, Inc. has manufactured the highest quality chemical products for the maintenance, installation and repair of refrigeration, air conditioning and plumbing systems for over eighty-five years. All products are thoroughly tested and proven to perform to the highest standards. Their commitment to quality along with excellent customer service and technical support makes Highside Chemicals the best choice.

Hill & Associates Ltd. is a globally renowned consultancy and services firm that help enterprises identify and mitigate risks to their business in a cost effective and suitable manner, thus enabling them to continue to operate securely and ethically.

Hiller provides residential and commercial service, installation, and repair throughout Tennessee, Southern Kentucky, and Northern Alabama. Hiller is Tennessee’s largest residential plumbing, heating, air conditioning, and electrical services provider.

Hillphoenix serves the food retail industry as the manufacturer of Display Cases, Specialty Products, Refrigeration and Power Systems, and provides a wide variety of in-store services through The AMS Group. The story of Hillphoenix is built on creativity and innovation delivered through people invigorated by a strong sense of responsibility to help the customers win in their marketplaces.

Hilmor is revolutionizing the HVAC/R world by creating tools that are a step ahead. Every tool they make is designed to give you all the features you need and none of the ones you don’t. They're determined to deliver smart, innovative solutions when and where you need them most. So, you’ll be fully equipped to retool and conquer.

Hilson Moran is an international environmental engineering consultancy for the built environment. They provide building services, fire engineering, smart buildings, facilities management, building automation systems and much more.

Since its founding in 1910, Hitachi has responded to the expectations of society and its customers through technology and innovation. They provide a wide range of services, including HVAC systems, Information & Telecommunication Systems, Social Infrastructure & Industrial Systems, Electronic Systems & Equipment, Construction Machinery, High Functional Materials & Components, Automotive Systems, Smart Life & Ecofriendly Systems.

Hitachi Rail is a fully integrated, global provider of rail solutions across rolling stock, signaling, operation, service & maintenance, digital technology and turnkey solutions.

Hix Air Conditioning Service, Inc. is proud to provide services that vary from heating, cooling, indoor quality of air, residential and light commercial installation, refrigeration solutions on current HVAC clients, preventative maintenance agreements, and getting to attain the greatest client satisfaction and retention.

HK Instruments is a Finnish company specialized in designing and manufacturing highly accurate and easy-to-use measuring devices for HVAC applications. devices are mainly used in ventilation systems and building automation.

HM Tech Air Conditioning & Heating is a company that provides viable solutions to homeowners and businesses alike. Based in Mesquite, TX, they offer a variety of HVAC services, Their HVAC company is ready to provide users with professional installation, repair, and maintenance services for their system! HM.

Hoffman & Hoffman, Inc. is a company that provides expertise in the selection and application of commercial and industrial heating, ventilation, air conditioning, filtration and direct digital control (DDC) systems. They represent manufacturers of the highest quality HVAC equipment and controls available on the market today.

Hoffman Controls is a manufacturer of Electronic Special Purpose products for the HVAC&R (Heating, Ventilation, Air Conditioning & Refrigeration) industry. They deal with EC Motor Controls, Induction Motor Controls, Condenser Fan Controls, Refrigeration Controls, SCR Heating Controls, Variable Air Volume (VAV) Products, Sequencer Controls, Thermostats and Transducers, Motor Protection, Ventilation/Exhaust Controls.

The Heating and Air Conditioning Contractors at Hoffmann Brothers have provided the greater St. Louis area with reliable and professional services for more than 40 years. They incorporate modern HVAC and plumbing technology. The Hoffmann Brothers’ Heating team install or repair heating systems of any brand. Some appliance repairs offered include: Refrigerator Repairs, Microwaves, Dishwasher Repairs, Freezer Repairs, etc.

Hoffmann Brothers' contractors have provided reliable professional services to local communities like Nashville for over 40 years. Their experienced HVAC technicians can help with all of heating and cooling needs, including HVAC installation, repair, and maintenance services. Their team of expert plumbers are available for a variety of services including drain cleaning and inspections, water heater installation and maintenance.

Hole Pro provides unique hole cutting tools for use by professional trades people, including electricians, HVAC and refrigeration contractors, audio and CCTV security systems installers, carpenters, MRO engineers, plumbers, and remodelers. Their tools save them time and enable them to safely complete jobs faster.

H&V offers a variety of highly engineered media that meet or exceed different global standards and offer lower pressure drop, energy savings, and longer media life.

As Georgia’s #1 American Standard dealer, Holtkamp provides award-winning air conditioning repairs, AC replacement, and AC maintenance to Gwinnett County and surrounding areas from their Suwanee headquarters.

For nearly 20 years, Holtzople Heating and Air Conditioning has been a leading HVAC company serving central Maryland and southern Pennsylvania, featuring star brands such as Trane, Lennox, Carrier, Bryant, ClimateMaster and more. Holtzople provides complete installation, repair and preventive maintenance agreements for residential heat pumps and air conditioners, as well as oil and gas furnaces and boilers.

For nearly 20 years, Holtzople Heating and Air Conditioning has been a leading HVAC company serving central Maryland and southern Pennsylvania, featuring star brands such as Trane, Lennox, Carrier, Bryant, ClimateMaster and more. Holtzople provides complete installation, repair and preventive maintenance agreements for residential heat pumps and air conditioners, as well as oil and gas furnaces and boilers.

Homans Associates is the premier distributor of HVAC Equipment, Supplies and Mechanical Insulation products in the Northeast. We've been serving the contractor community since 1952 with locations across all of New England plus New York and New Jersey. Our logistics network includes over 80 trucks and almost 1 million square feet of distribution space.

HBI (Home Builders Institute) is a national nonprofit that provides training, curriculum development, and job placement services for the building industry. With job placement rates at over 80 percent for graduates, HBI training programs are taught in local communities across the country to at-risk youth, veterans, transitioning military members, justice-involved youth and adults, and displaced workers.

Home Comfort Alliance has provided award-winning customer service for over 40 years. Call us today for all your heating, air conditioning, plumbing and electrical needs.

Home Connectivity Alliance (HCA) is an appliance, HVAC, and TV manufacturers alliance that is focused on IoT and connectivity in the new digital landscape.

Home Heating & Plumbing specializes in HVAC (Heating, Ventilation and Air Conditioning) and Plumbing solutions for the new construction, remodeling or replacement project.

hOme Technologies, LLC is a home appliance company based in USA, that design and manufacture things like dehumidifiers, air conditioners, etc.