Dennis’ Heating and Air Conditioning, Inc provides HVAC Installation, Retrofits, Service and Maintenance, as well as a full service sheet Metal Fabrication Shop. They are capable of fabricating almost anything, if customers can draw it, they can build it. The company is known for their knowledge, reliability, and incredible customer service.

DFW IT Partner is a Reliable IT Partner providing one-stop IT solutions in Dallas, Austin, Fortworth, Houston, and San Antonio, Texas, USA. They provide businesses with the expertise, resources, and support needed to drive innovation and stay ahead of the competition in today’s fast-paced digital landscape. By working with them, businesses can achieve their technology innovation goals more efficiently and effectively.

DHD Cooling offers a full service capability to the manufacturing, HVAC, thermal power plant, industrial and chemical industries, offering a bespoke service tailored to one’s exact cooling tower system requirements.

Dixon Group Ltd comprises three specialist building services companies, providing complete project management on developments for commercial clients. The teams offer everything from design and installation to ongoing maintenance and servicing for large industrial sites, retail developments, offices, local authorities, the NHS, building contractors, and numerous engineering consultancies.

Donnelly is the most reliable mechanical contractor in New York City. Donnelly gives the clients peace of mind. Donnelly does this by providing the most innovative services and solutions through the experienced team. New York City’s premier provider of HVAC service, maintenance, and construction, as well as energy solutions.

As a pioneer Gas and Heating Company in West Yorkshire, DTR Gas and Heating knows what exceptional and reliable workmanship means. They are providing clients with a wide range of services, all with guaranteed quality and precision. From the beginning stages of the project all the way to the completion of the process, they work side-by-side with clients every step of the way.

For over 30 years, Duct Doctor USA has been providing quality air duct cleaning for both residential and commercial customers. Duct Doctor was founded by a board-certified allergist in 1985 with a mission to improve the air quality of homes and workplaces.

At Duct Hygiene they specialize in the servicing of commercial kitchen extraction systems, fresh air ventilation and Fire Damper Inspection & Testing. They provide maintenance services to both blue chip and private sector clients throughout the UK, performing over 7,500 service visits each year maintaining building safety and compliance.

DuctSox is a manufacturer of textile air dispersion products for open and finished ceiling architecture, critical environments, and under floor applications. DuctSox Products are a cost effective, aesthetically attractive alternative to metal ductwork and diffusers. DuctSox Systems are 100% custom made, starting from the engineering design to the manufactured product.

Dura Products, Inc is a state-of-the art Indiana based manufacturer of metering, pumping and dispensing systems for the DEF, AG, and turf Chemical industries. Founded by owners with decades of knowledge in farming and the chemical sales industry, Dura Products Inc goes beyond excellent design to incorporate innovative, versatile and durable transfer pump solutions with the end consumer always in mind.

The E.ON Group is one of Europe's largest operators of energy networks and energy infrastructure and a provider of innovative customer solutions for 50 million customers. Thus, they are decisively driving forward the energy transition in Europe and are committed to sustainability, climate protection, and the future of the planet.

Edwards Modular Controls (EMC) was founded in 1977 by John Edwards. Located in Brighton, EMC has steadily grown and now employs a full-time staff of seventeen. They specialize in the design, manufacture, electrical installation, commissioning, and servicing of all types of heating, ventilation, and air conditioning control systems.

EffectiV HVAC Inc. manufactures and supplies high-quality, top-performing architectural air distribution products for commercial buildings. EffectiV diffusers can be found in office buildings, schools, hospitals, airports, retail stores, hotels, restaurants, and hundreds of other buildings across North America. EffectiV 's unique ceiling air diffusers allow Engineers and Designers to answer specific architectural and performance needs.

Since 1999, Elite Cooling, Heating & Plumbing has been serving Bradenton, Sarasota, and Manatee counties with top-quality HVAC and plumbing services. With more than 30 years of experience, their licensed and insured team provides quality work and great customer service every time.

Manufacturing residential and commercial baseboard radiation since the early 1970’s, Embassy Industries is one of the most widely recognized hydronic heating equipment manufactures in North America. Embassy Industries offers a complete line of high efficiency hydronic heating equipment for every residential application.

Deploying autonomous intelligence and analytics, Encycle improves commercial HVAC management, energy efficiency and building comfort to reduce operating costs and carbon footprint. As the only utility-endorsed HVAC optimization software, their patented machine learning solutions seamlessly integrate into maintenance workflows and enable multi-site companies to maximize energy efficiency, improve budgetary spend, and reach sustainability goals.

ENERGAIR is the sustainable compressed air management arm of CMC – the global experts in compressed air control, performance and monitoring solutions. Harnessing almost four decades of knowledge and experience, and tapping into CMC’s growing range of brands, products and technologies, ENERGAIR provides a fully integrated compressed air management service that focuses on helping customers reduce their compressed air-related carbon footprint.

EnergiVault CTES technology adds a range of capabilities to industrial chiller operation including electrical load shedding and load shifting, use of on-site generated renewables, and the capability to benefit from grid-level support payments. The technology adds a whole new range of capabilities to industrial refrigeration by enabling flexible charging and discharging of cold thermal energy.

The Energy and Utilities Alliance (EUA) is a not-for-profit trade association that provides an industry voice to help shape the future policy direction within the energy sector. It acts to further the best interests of its members and the wider community in working towards a sustainable, energy secure, and energy-efficient future.

EnviroKlenz products feature patented earth mineral technology comes in contact with a toxic smell or chemical compound, they actively and safely neutralize the harmful compounds without the use of masking agents or toxic chemicals. Odors are completely eliminated, and irritants are totally removed from the air, and all without any unnecessary fragrances or perfumes.

Esser Plumbing & Heating (Aire Serv of Fargo - Esser Plumbing) perform commercial and residential installations and services throughout the Lakes Area in Minnesota and the Fargo-Moorhead area. They provide heating installation and repairs that includes furnaces, geothermal and ventilation, residential plumbing, drain and sewer services, such as cabin winterization, bathrooms, kitchens, water heaters, water softeners, pipe repair and more.

Europe Air Conditioning (EAC) designs, supplies, installs, and maintains air conditioning, heating, and ventilation systems. Europe Air Conditioning Bradford provides routine planned preventative maintenance contracts and 24-hour/365 days a year, national call-out service in the event of a breakdown.

Founded in 1993, Eurovent Certita Certification is recognized as a world class organization in the field of third party product performance certification for Heat Ventilation Air Conditioning and Refrigeration products. They include HVAC-R consultants, Energy Engineering offices, Architects and product end-users, the most comprehensive data base of certified products, covering up to 40 product families.

As one of the UK-based specialist suppliers of ground source heat pumps and air source heat pumps, heating solutions for swimming pools, and solar panels, Evolution Eco Homes pride itself on providing customers with a comprehensive, ethical, trustworthy, and professional approach to renewable energy.

Compelled by the worsening levels of air pollution in the UK, they launched Evotech Air Quality in 2020 to help the customers create safer working environments by transforming their indoor air quality. They also Monitoring indoor air quality data in real time to assess the impact of COVID-19 secure ventilation.

Exyte Hargreaves is the UK’s renowned provider of specialist high-integrity bespoke ventilation and hydraulic systems and ultra high-purity pipework solutions.

Farr & Harris is a family-owned independent plumbing merchant based in Shrewsbury, Shropshire. Farr & Harris started back in 1956 and has grown thanks to their many happy returning customers, who want professionalism and reliable service.

Ferguson HVAC offer the best unitary and ductless equipment brands and a wide-range of HVAC products, including accessories, controls, air distribution supplies, and service and repair parts. Ferguson HVAC Branches are supported by an advanced network of 10 distribution centers strategically located around the USA.

FilterBuy is a direct to consumer replacement air filter brand, headquartered in the Southeast of the United States and serving homes and businesses across the country. They are dedicated to providing quality, U.S. manufactured products to customers.

Fujitsu General Australia is one of the pioneering suppliers of air conditioning products in Australia. The company's origins date back to the 1960s through a sales distribution company known as General Colour Pty Ltd, selling color televisions. In 1980 became a full subsidiary of the General Corporation in Japan and General Corporation Japan (Aust.) Pty Ltd was formed.