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.

HiiLIFE specializes in providing bespoke luxury technology & entertainment packages tailored for the construction, leisure, and residential sectors. The company serves as a comprehensive one-stop shop, offering a wide range of products and services, including HVAC systems, AV systems, home entertainment, lighting, premium appliances, white goods, climate solutions, and smart home technology.

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.

Hughes Ventilation Air Conditioning (HVAC) was formed by combining a wealth of experience from a group of professional engineers all experts in their field. HVAC specializes in onshore and offshore international projects and can offer a wide range of services, which comprises of Modular constructions, Heating, Ventilation, Air conditioning, Refrigeration and Acoustic/Thermal solutions.

HVAC IT Services specialize in providing expert IT support, cyber security, telephone systems, and internet services tailored specifically for the HVAC industry. As the renowned IT support company for HVAC businesses, they are dedicated to helping customers grow through digital transformation to increase productivity, efficiency, and business performance.

HVAC WHOLESALE LTD is a family-run business with over 17 years of industry experience covering Air Conditioning, Refrigeration, Heating, and Air Source. Using all the industry insight, they have built a team of customer-focused people who are here to offer the contractor community a wholesale choice like no other

iACS have made a name for themselves in the UK as Air Handling Control Experts - the software team work relentlessly in ensuring that the AHU control solution remains ahead of the curve while the in-house panel build team work to the highest standard in order to achieve quickest turnaround in the Industry.

Ideal Heating is a British manufacturer of high-efficiency commercial and domestic heating solutions. With over a century of experience manufacturing boilers in the UK, including wall-hung, floor-standing, and modular boilers, they are uniquely qualified to meet the ever-changing needs of the UK marketplace.

IFC Certification Ltd is a UKAS accredited and internationally recognized provider of high quality customer focused independent third party certification. IFC Certification Ltd is also a Notified Certification Body for certificating products for CE Marking under the Construction Products Directive.

Imex M&E Ltd provides full design, supply and installation of mechanical, electrical and public health services.

At Impact Air Systems, they’re driven to lead the global air conveyance market by delivering smart, profitable solutions that separate waste, remove and collect trim, and control dust—with precision and performance users can count on.

Industrial and Commercial Heating Equipment Association (ICOM) is the UK's trade association representing the industrial and commercial heating equipment industry sector. Together with the members, ICOM represents the industry's interests at UK Government and European levels. ICOM is a division of the Energy and Utilities Alliance (EUA).

Institute of Domestic Heating & Environmental Engineers is the pre-eminent professional body for the approved heating engineer. The prime objective of the IDHEE is to raise the standards of domestic heating installations through education, to which end IDHEE Education has developed the Domestic Heating Design Course, and continues to develop further courses to enhance the knowledge of installers in general and its members in particular.

The Institute of Refrigeration provides a central resource for people from all over the world to improve the application of refrigeration and allied fields for the general good of society with particular emphasis on environment, efficiency, safety, and innovation.

INTOHEAT Ltd is a Mechanical & Electrical building services company based in Bristol and Exeter, operating nationally. Their efficient, personal and friendly service ensures every project is managed to the highest standards in terms of estimating, planning, design, installation and ongoing maintenance.

J Williams Plumbing & Heating offer Plumbing, Heating and Energy Efficiency services and installations in both commercial and residential locations. From boiler repairs to gas safe installations, their services are both versatile and proven

J & B Hopkins Limited is a privately owned Company incorporated in 1978 and has progressively grown and developed significantly over the last forty years to provide a full Mechanical and Electrical services design and installation to the building industry and direct to end users.

James Hargreaves Plumbing Supplies has a specialist Underfloor Heating team that can help with all the Underfloor Heating needs. From design and specification, supply and delivery of quality products through to technical customer support.

JDE Ventilation Systems excels in cutting-edge ventilation systems, and state-of-the-art heat recovery solutions. They pride themselves not only on their innovative offerings but also on their commitment to customer satisfaction.

JLA’s products and services help to keep thousands of patients, residents, and customers safe, clean, and warm. They provide commercial heating equipment, commercial air conditioning, commercial fire safety solutions, infection control solutions, and Servicing & Maintenance.

Joule Consultants was formed in 2001 and incorporated in 2002. They are a privately owned Professional Building Services Design and Energy Management Consultancy based in Blackpool and Liverpool. They deliver HVAC inspection and commissioning services that can be used to commission HVAC systems, benchmark existing systems, and identify/ correct poorly performing systems.

JTL Systems is one of the UK's suppliers of temperature control, monitoring and refrigeration management services.

KGM Refrigeration is an independent company, whose goal is to be the supplier of choice for users of industrial refrigeration equipment. From design through to installation, commissioning and follow on routine maintenance, we form a total partnership with our customers to provide a total solution throughout the life time of the refrigeration plant.

KH Refrigeration is a family-orientated business with over 35 years of experience and knowledge in the sectors of Refrigeration & Air Conditioning.

Established, experienced, and trusted provider for service, sales, and installation of air compressors and compressed air systems in South East England. It supports all compressed air system requirements whether compressor service, maintenance, repair, new or used air compressor and equipment sales, installation, pipework, and testing.

Klima-Therm has earned a stellar reputation for supplying innovative and sustainable cooling, heating, air conditioning and air movement products supported by excellent technical back-up, installation, service and maintenance.

KoolMax Group is one of the prominent manufacturers in the United Kingdom within the commercial refrigeration sector and a distributor for the leading brands of Arneg Scancool and J & E Hall.

Established in 2014, Leonari is a Mechanical & Electrical contractor working in London and the South East. They specialize in the commercial, residential, retail, data centers and educational sectors where our works include CAT-A, CAT-B installations as well as capital plant replacements.