Heinen & Hopman are experts in the field of designing, engineering and installing heating, ventilation, air conditioning (HVAC) and refrigeration systems on both land and sea.

For over 125 years, Redlands and Henry Bush Plumbing, Heating, and Air have been proudly serving the Inland Empire community with top-notch HVAC service and expertise. When it comes to any plumbing and HVAC needs, they're the leaders who customers can rely on for honest service. Their experienced team is dedicated to exceptional service.

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.

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.

HomeServe USA Corp. is a renowned provider of HVAC systems, equipment and home comfort solutions. The services offered by the company include Plumbing, Sewer Line, Heating & Cooling Solutions, Electrical Wiring, Water Service Line, Gas Line, Septic Line, Heating Tune-Ups, Cooling Tune-Ups, and Hot Water Heater Repairs.

Hometown Comfort Pros Heating and Air provide heating and air conditioning services in Forest Virginia, Bedford Virginia, Evington Virginia, Madison Heights Virginia, Amherst Virginia, and Smith Mountain Lake Virginia regions.

Since 1962, Houk has been keeping Texans cool by providing award-winning service and the most modern, up-to-date technology in HVAC equipment. When it comes to maximum comfort, Houk is a pioneer that backs all work with a customer satisfaction guarantee.

Founded on January 1, 2000, House Pro was started with a simple concept - offer unparalleled service and customized heating and cooling solutions to each and every homeowner. They offer emergency AC repair services, available 24/7, to keep residents cool when the heat is on. Trust their experienced technicians for Houston AC repair – they’ve serviced over 35,000 homes in the region.

Howard Air focuses on providing the latest technology in superior comfort to meet all of the air conditioning and heating needs. Whether it is residential or light commercial sales, service, installation, indoor air quality or new construction, they guarantee that their specialized team will provide the best quality work.

At Howell's Heating & Air believe in providing the greatest value possible by offering first class service as well as uncompromising quality at a reasonable price. Over 40 years and a generation later, Howell’s remains true to this original philosophy and attributes its success and reputation to their great owners, for their hard work every single day.

HSB Living Lab is a Swedish technology cooperative founded in 1923 that organizes 554, 000 members. HSB living lab is made up of 4-modules houses. The modules make it possible to rebuild and move the building, which makes the lab easy to access for researchers, developers and innovators.

Huguenot Laboratories specializes in treating all aspects of fire sprinkler systems. The company represents over 50 years of experience in the water treatment and fire sprinkler industry. Huguenot is the only UL-certified product in the market. Huguenot Laboratories is a growth-oriented company whose mission is to provide a value-added service to the fire sprinkler industry.

Hunt’s Services is a heating, air conditioning, electrical and plumbing service company, which has established a reputation for quality work and dependability.

AC & Heating Equipment Rental are the air treatment specialists who understand the critical importance of air quality and building systems. Founded by three seasoned experts with a combined experience of over 40 years in rent air conditioner and heater rentals, they are passionate about providing exceptional solutions to meet unique client needs. They deliver their services 24/7 across the provinces of Ontario and Quebec in Canada.

HVAC Erie specialize in air duct cleaning, air conditioning repair, and furnace repair in Erie, Pennsylvania, USA. They offer a full range of heating and cooling services, including furnace repair, air conditioning repair, and air duct cleaning. Their experienced technicians are available 24/7 for emergency repairs.

HVAC Manufacturing and Technology is a Woman Owned Company located on 15 acres in East Texas. A diversified Building technology company specializing in the design and manufacturing of patented intelligent HVAC products, Self-commissioning air terminals, air handling systems, modular prefabrication, hydronics, air purification systems, air distribution, Intelligent Air Control, Total Room Automation, UL Control panels and cutting edge software.

Ace Instruments’ IAQ Detectors range empowers the new generation of sustainable buildings to continuously monitor indoor air quality with cutting edge instrumentation. Positive performance on major indoor air quality parameters has been linked to improved productivity, reduced operating cost and carbon footprints. Their extensive experience of over 30 years in manufacturing enables them to deliver customized solutions for unique IAQ applications.

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.

Since 1979, Indoor Comfort Team has performed heating and air conditioning services for residential customers across greater St. Louis, including Metro East suburbs in St. Clair County, Illinois. They provide quality services with a full guarantee. They're a family-owned & operated HVAC company, offering superior residential HVAC services to St. Louis & surrounding areas.

Innotec is an innovative LED lighting and technology manufacturer that supplies products through their uniquely automated manufacturing processes. Founded in 1992, it is their continuing mission to expand their full-service supplier capabilities, while striving to retain a small company atmosphere. Headquartered in Zeeland, Michigan, Innotec has expanded operations to major markets around the world, including Hungary, China, Mexico, and India.

Inspected is a Remote Virtual Inspection software platform designed specifically for inspectors to connect with onsite personnel to help achieve a safe alternative to in-person inspections. Inspected keeps inspections moving forward efficiently creating a dedicated compliance solution in a centralized hub to help promote a safe workplace and focus on the health and safety of workers.

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.

With a mission to use trust to make high-quality healthcare as accessible as a good cup of coffee, IntelliCentrics created the SEC³URE Ethos technology platform. Using trust as a technology, the SEC³URE Ethos is relied on by more than 11,000 locations of care worldwide to ensure trust across the entire continuum of care, including locations, patients, physicians and nurses, and vendor representatives.

IonicBlue® is a joint venture between Johnson Controls, the global pioneer in delivering energy and infrastructure solutions, and Apollo Global Management a leading, global alternative asset manager. They deliver a total solutions approach through the expertise of Johnson Controls and the unmatched ability of Apollo to provide alternative capital solutions.

ISC Sales Inc. provides superior industrial products to a wide variety of end-users and original equipment manufacturers (OEM). They offer a broad range of climate control products for electrical enclosures, such as air conditioners, vortex coolers, air to air heat exchangers, purge & pressurization units, filtered fans, and thermoelectric coolers.

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.

ISS Mechanical is a 'Service First' Mechanical Contractor. They specialize in the service, maintenance, repair and replacement of air conditioning, chillers, controls and refrigeration equipment for existing Commercial, Healthcare and Industrial Facilities. Their service area is Central Florida, with offices in Orlando and Tampa, Florida. They are able to provide mission critical and emergency service to facilities throughout Central Florida.

ItuGraf is the most efficient radiant ceiling system on the market. It is ideal for the management of heating systems in buildings of all sizes, for both new buildings and renovation projects. ItuGraf heating and cooling panels effectively create a comfortable room temperature without dust, drafts or noise, and significantly improve indoor climate.