Health and Safety Executive (HSE) is the national independent watchdog for work-related health, safety and illness. Their mission is to prevent death, injury and ill health in Britain's workplaces. They are an independent regulator and act in the public interest to reduce work-related death and serious injury across Great Britain’s workplaces.

Heat Geek is renewing the heating industry. Home heating accounts for 17% of the UK's carbon emissions and to tackle this, they have developed a digital-first experience that enables people to upgrade their homes with carbon-free heating. Heat Geeks are part of one of the largest independent renewables installer communities in the country, with access to incredible training and community support to deliver customer energy upgrades.

Heat Orkney has an experienced team who can assess, install and commission any size of heat pump or air conditioning equipment. We pride ourselves on a professional service where the customer satisfaction comes first. They offer a free quote to supply, or supply and install, any sized systems throughout the whole of Orkney- including outlying islands, Shetland and northern Scotland.

The Heat Pump Association (HPA) is the UK’s based authority on the use and benefits of heat pump technology and includes many of the country’s manufacturers of heat pumps, components, and associated equipment.

Heat Pump Federation lobbies government for long term policy supporting the electrification of heating and cooling, works to raise awareness, understanding and confidence in heat pump technology across both domestic and commercial sectors, and collaborates with government, industry and consumers to make this a reality.

Heat Pumps UK, a trusted company with years of industry experience providing an end-to-end service for customers has been looking to upgrade its heating system and taking advantage of the available funding schemes.

Heat-flo, Inc. is a design, sales, and manufacturing company dedicated to providing high-quality, cost-effective solutions for hydronic, solar, and electric-based water heating applications and high-efficiency hydronic and radiant heating applications.

Heatable offers fixed price boiler replacements to customers UK wide. They have partnered with Alpha, Viessmann & Worcester-Bosch boilers to provide products at super competitive rates. They are here to simplify the boiler buying process, provide transparency of pricing and pass huge savings on to the customers.

HeatFix Scotland Ltd is the market leader in Scotland for service & repair on all renewable and carbon-fueled heating appliances. They are the number one choice in Scotland for professional boiler repairs, servicing, and boiler cover.

Heatforce has been supplying quality fireplaces, bathrooms, boilers and renewable energy solutions for over 35 years. They also provide heating installation, servicing & maintenance, fireplace installation & servicing, renewable energy installation, and bathroom installation & maintenance.

Heating and Hotwater Industry Council (HHIC) has been established for driving, supporting and promoting the sustained growth of the UK domestic heating and hot water industry.

Heating Force has experience on both sides of the heating industry, and that’s enabled them to build one of the biggest free resources in the UK – helping over 60,000-150,000 visitors with boiler problems every-single-month. They also connect homeowners with cheap boiler installers, such as HEATABLE or WarmZilla.

Established in 1968, Heatmiser has become one of the UK’s smart room thermostat manufacturers. Heatmiser has established partnerships with heating installers and heating equipment manufactures across the UK and has the ability to private label and custom design.

Heatrae Sadia is the UK's largest manufacturer of electric water heating products, and supplies products worldwide. They have achieved this position through their commitment to product innovation and quality. Their range is the widest and most comprehensive available in the UK today.

HEI was created to bring fresh ideas to the table of market companies & clients who want the very best in Electrical & Mechanical Engineering.

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.

Helo is one of the world's largest sauna and steam bath, steam generators and rooms business. They develop, manufacture and market sauna and steam products worldwide. Helo Group Ltd has sauna room, sauna heater and steam generator manufacturing plants in Finland, Sweden, Germany and the United States and an extensive research and development program for sauna and steam related products.

Heronhill are the official distributor for Panasonic and Marstair air conditioning and low temperature systems. To add to their portfolio of products, Heronhill are the main importers of Nordmann humidifiers and distribute Vapac's VapaVoid humidifier range and stock a full range of spares.

Hertel is a pioneering international, multi-disciplinary, industrial services company. It supports its customers with Access Solutions, Insulation, Corrosion Protection, Mechanical, offshore Living Quarters, and Specialist Services. Hertel is working for customers in the Oil and Gas, Process, Energy, and Offshore industries.

As a non-profit organization, HETAS pride itself on investing surplus funds into business areas that directly contribute to safely reducing particulate and carbon emissions for the benefit of the people and the environment.

Hewlett Packard Enterprise is a globally renowned enterprise based out of San Jose, California, USA. The company provides AI-driven data storage, software solutions, cloud infrastructure, networking solutions, servers and systems, along with HVAC software services.

Hi-line Industries provides innovative design, manufacture, supply and installation of energy efficient compressed air purification equipment. It supplies a broad range of energy efficient compressed air equipment which includes air dryers, nitrogen and oxygen generators, compressed air filtration equipment, condensate management/drains and service kits.

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.

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.

HLA Services Ltd are specialists in Heating, Ventilation, Air Conditioning, Plumbing, Electrical and Water Hygiene Services. All key personnel at HLA Services Ltd have many years’ experience in these disciplines and employ only fully qualified staff that are capable of providing a full ‘turn key’ service.

Hobson & Porter is a family owned construction company with offices in Kingston Upon Hull and Lincoln, operating across Yorkshire and Lincolnshire regions, in the United Kingdom. They operate a Quality Management System which complies with the requirements of ISO 9001: 2015 for the construction of building works for both public and private clients incorporating new construction, renovation, refurbishment and minor works contracts.

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.

Hometree exists to help homeowners keep their homes warm, safe & working by providing HVAC solutions.