Federal Association for Combined Heat and Power aims to increase the efficiency of energy conversion in order to conserve resources and reduce emissions that are harmful to the environment and the climate. The association strives for the broadest possible social alliance, which should also be reflected in the membership and the composition of the board.

The Bundesverband Bioenergie eV (BBE) is the umbrella organization for bioenergy. It was founded in 1998 in order to give the diversity of bioenergy with all its manifestations and technological paths in the electricity, heating and transport sectors an effective representation in politics and society.

The Federal Association of the Chimney Sweep Crafts - Central Guild Association (ZIV) - represents the interests of chimney sweep companies in Germany. Members of the federal association are 16 regional guild associations and their affiliated guilds. The association represents the interests of the chimney sweep trade and supports the affiliated member associations, member guilds and individual companies in fulfilling their statutory tasks.

The Federal Association of the German Heating Industry represents a good 90% of the heating industry turnover in Germany. The product range includes heating systems with outputs from 4 kW to 36 MW, burners, components for combustion technology, radiators, surface heating, surface cooling, ventilation systems, controls and exhaust systems.

Federal Corporation is a factory rep and stocking distributor of hydronic equipment and controls for commercial and industrial applications. They have expertise in boiler controls, industrial burner management, and oil & gas processing burner management, and offer services from installation and integration, to optimization and repair, to testing and inspection.

The Federal Industrial Association for Technical Building Equipment e. V. (BTGA) is an association based in Bonn and, as an umbrella organization, unites building technology companies with their own engineering capacities in Germany. Technical building equipment or building technology is a sub-area of supply technology.

The Federal Motor Carrier Safety Administration's (FMCSA) primary mission is to prevent commercial motor vehicle-related fatalities and injuries.

Federation of German Heating Industry owns 117 companies and 2 associated associations. Similar to the German engineering industry, the German heating industry is structured as a medium-sized company. The members of the BDH also include world market leaders with annual sales of between 2 and 3 billion euros. In 2020, the BDH member companies generated a total of 16.2 billion euros and employed 76,900 people.

Feenstra not only provides the installation and maintenance of boilers, but also cleans ventilation ducts, installs solar panels and insulates roofs, floors and cavity walls. In addition, customers can also contact them for energy advice and security systems.

Fellowes is a company that offers Air Purifier products. This is one of the brands that features a range of Air-purifying products.

Fenwal serves OEMs in HVAC, commercial cooking, medical, RV, Industrial Equipment, Fire protection and many other markets. They are a global company offering products and technical support worldwide through a broad network of local representatives and distributors.

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.

Ferguson is North America’s value-added distributor across residential, non-residential, new construction and repair, maintenance, and improvement (RMI) end markets. Spanning 34,000 suppliers and more than one million customers, they deliver local expertise, value-added solutions, and the industry’s most extensive portfolio of products.

Established in 1964, Fernox is a leading manufacturer of water treatment chemical products, central heating system filters, plumbing consumables and diagnostic testing services. Fernox has pioneered the development of energy efficient products both for traditional and renewable technology in domestic and commercial applications.

FG Mechanical Building Services provide consulting, HVAC, and building management services in Northern Ireland.

Fidvi Refrigeration Industries, founded in 1969 and based in Mumbai, specializes in manufacturing industrial and commercial HVAC and refrigeration systems—including finned tubes, condensers, chillers, unit coolers, and marine oil coolers in materials like copper, stainless steel, and aluminum.

Field Controls provides Indoor air quality products, UV air purifiers, media filters, fresh air systems, barometric draft controls, draft inducers, power venters and air boosters, condensate pumps, and whole house fans.

Since FieldConnect was founded in 2002, the company has grown to be a provider of software solutions for Mobile Field Services providers. From family-owned and operated service businesses to multi-billion dollar corporations, FieldConnect has the solutions that make your field techs more efficient.

Figlia & Sons opened its doors in New York City in 1960 and has been proudly serving the people and businesses of the NYC metro area ever since. As a full-service HVAC company in NYC, specialize in the sale and service of air conditioning equipment. Figlia & Sons prides itself on using only the best equipment available, which is why only offers Simon-Aire products to customers.

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.

FilterEasy, believe in the power of easy. Service simplifies life by delivering filters automatically, and reminding when to change them. FilterEasy loves giving one less thing to think about.

FilterTime is an air filter subscription service. It delivers home/office air filters right to the door on the schedule users choose.

Filti based out of Kansas City, MO manufactures and distributes high quality HVAC filters for all types of homes. Their primary mission is to support healthier lifestyles by providing superior air quality.

Filtration Group is a pioneer in commercial HVAC air filter solutions that optimize indoor air quality and operational costs. It provides HVAC, Indoor Air Quality, Mechanical Engineering, Manufacturing, Air Purification, Energy, Contracting, HVAC Products, Heating, Cooling, air filter, and commercial energy solutions.

Filtration Manufacturing is a manufacturer of residential, commercial and industrial air, gas, hydraulic, compressor and liquid filtration, ice machine and air purification products.

iltrine provides custom engineered chillers, drinking fountains, water purification and drinking water systems for a wide variety of applications with a focus on sustainability and durability.

Filvent designs and manufactures direct-driven dual inlet centrifugal fan units which is fitted into fabricated steel housings complete with efficient pocket filters.

FIMER as a pioneer in solar inverter technology, have the energy to make positive change happen. Committed to leveraging the energy playing field to serve growing demands with clean, affordable energy which truly benefits people and places.

Finder Relays is a global manufacturer of control panel components, relays, timers, power supplies, PCB relays, liquid level, fans, thermostats, heaters, contactors.

Finn Geotherm is East Anglia’s leading supplier and installer of ground and air source heat pump systems for domestic, commercial and industrial customers. Ground and air source heat pumps use the latest technology to generate heating and hot water from renewable sources.