Harrison Electrical is one of the biggest electrical contractors in the UK. They provide a wide range of services for both the industrial and the commercial sectors. They work from start to finish like an initial consultation, initial design, installation, and testing, final fittings. This company can work on any kind of electrical requirement of the contractors.

At HD Supply, they believe that their core purpose is to improve their associates’ lives and equip them with the tools needed to provide exceptional customer experiences every day. With more than 80 years of experience and one of the largest industrial distributors in North America, they enable their customers’ success by consistently delivering what they need, where and when they need it.

A specialist in hydrogen technologies, HDF develops, finances, builds, and operates multimegawatt industrial power generation infrastructures. HDF marketed the Renewstable® power plants, which capture intermittent renewable energy and store it massively in the form of hydrogen to produce stable, 24-hour electricity that can be controlled like a thermal power plant at a competitive price.

Heart Utilities Inc was founded to bring cost effective contracting solutions to the electric industry along the east & gulf coasts. Since inception safety and quality have been placed first above all else. These philosophies have brought a company that in it's infancy was comprised of a mere five employees, a pickup and a boom truck to a thriving electrical contractor.

Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States. An established industry leader, Helix Electric has decades of experience and expertise in nearly every field of construction, including mission-critical, data center, medium voltage power distribution, renewable energy, commercial, industrial, mass transit and rail, and high-density residential

HENSOLDT is a supplier of premium sensors for security and surveillance missions. Capitalizing on more than a hundred years of experience in high-performance technology, they are the world market leader for missile warning systems and submarine periscopes. Moreover, HENSOLDT is well-represented in the market for radar systems, optronics, and electronic protection systems.

Hexagon Energy is an independent energy development firm. We believe that the path to a clean energy future requires a range of new sources and technologies. They develop projects across six diverse energy solutions with one common goal—powering a clean future.

Based in Merseyside, UK, Heywood Electrical has been growing and expanding as an electrical contractor and maintenance service provider covering Liverpool, Knowsley, St Helens & Warrington. Their quality service and reputation has been built up by meeting demanding client requirements and supporting their business objectives. The company has an excellent reputation for providing a quality of service that other companies struggle to match.

Highly group is a leading supplier of AC compressors, high-efficiency air conditioner compressors, and Refrigeration related products. Human Resources Management at HIEC assumes that Human Resources are the most valuable asset to the organization and their contribution is of prime importance to the successful achievement of Organizational and business objectives.

Hill Electric Company are an Industrial Electrical Contractor providing installations of Manufacturing Process and Auxiliary Equipment. Their services include Service Entrance (MV and LV), Power Distribution, and Process Equipment power/control/instrumentation/data.

Hilti is a pioneer in providing technology products, systems and services to the worldwide construction industry. They supply the construction and energy industries with products, systems, software and services.

Hilton Cannon have a substantial wealth of experience in delivering integrated building services solutions, from the design, build, and maintenance of large-scale commercial & industrial projects, to individual building services installations. They can accommodate any requirement including Electrical Engineering installations within New Build Construction projects and Refurbishment schemes

Hindalco Industries Limited is the industry leader in aluminum and copper. With a consolidated turnover of US$18 billion, Hindalco is the world’s largest aluminum rolling company and one of Asia’s biggest producers of primary aluminum. Its state-of-art copper facility comprises a world-class copper smelter and a fertilizer plant along with a captive jetty. The copper smelter is among the world’s largest custom smelters at a single location.

Hitachi commits to helping achieve a sustainable world and people's well-being by utilizing their breadth of digital and green technologies. Since its founding in 1910, Hitachi has responded to the expectations of society and its customers through technology and innovation. They work to apply their expertise in information technology (IT), operational technology (OT), and a wide variety of products to advance social infrastructure systems.

Hitachi Europe Ltd. is a Climate Change Innovator, helping governments, cities and companies cut carbon emissions. They are committed to helping achieve a sustainable world and people's well-being by utilizing our breadth of digital and green technologies. They are working to connect solutions within Energy and Mobility, both physically and digitally, to deliver net-zero.

Hitachi High-Tech is a global company offering a wide range of cutting edge products and services and around the world.

Hitachi Industrial Equipment creates synergies among Industry related business units and promptly offers one-stop solutions to dynamic market changes along with the diversification in demand that is taking place in the Americas.

Hitachi Vantara are a globally renowned company in powering global, mission-critical digital and industrial environments. They guide customers from what’s now to what’s next by solving their digital challenges. Services provided include - Enterprise Storage Solutions, Internet of Things, Big Data, Flash Storage, Cloud Infrastructure, Content Mobility, Digital Transformation, and Storage Software Solutions.

HIWIN Mikrosystem Co., Ltd. specializes in the R&D and manufacturing of motion control and system technology. In the business philosophy of “professional excellence, working enthusiasm, and enterprise responsibility”, they continue to provide a better way of life and a better working environment for mankind with persistent efforts since the establishment.

HK Electric has a long record of providing a safe and highly reliable electricity supply at a reasonable price to customers on Hong Kong and Lamma islands. Since 1997, its power supply reliability rating has been maintained at over 99.999% - one of the best records in the world.

HMT Electric Inc. specialize in electrical installations for high-rise construction projects that utilize a cast-in-place concrete design. HMT ELECTRIC INC. was established in February of 2007. After many years of running high-rise divisions for other electrical contractors,

Hoeller Electrolyzer was founded to develop, manufacture, and sell PEM-electrolysis-stacks which are needed by OEMs of systems that produce "green hydrogen"​, i.e. for storing regenerative energy in the form of hydrogen.

Holborn Energy Group Limited is an independent oil & gas consultancy firm based in the United Arab Emirates. The company provides exploration project management, business development and technical consultancy services to oil & gas companies exploring for and developing hydrocarbons in the Middle East, Africa, Asia and Europe.

Established in Taiwan in 1974, Hon Hai Technology Group (Foxconn) is the world’s largest electronics manufacturer. Foxconn is also the leading technological solution provider, and it continuously leverages its expertise in software and hardware to integrate its unique manufacturing systems with emerging technologies.

Honeywell is a Fortune 100 company that invents and manufactures technologies to address tough challenges linked to global macrotrends such as safety, security, and energy. With approximately 110,000 employees worldwide, including more than 19,000 engineers and scientists, it has an unrelenting focus on quality, delivery, value, and technology in everything it makes and does.

For more than one hundred years, Hooper Corporation has been full-service electric, power and mechanical contractor. They are proud of what they have built and those they have partnered with.

Established in 2004, HPES Technical Solutions Ltd sets out to provide a reliable, professional service, offering tailored solutions to meet the varied requirements of our customers. All the staff hold industry standard electrical and health & safety qualifications with many also holding additional qualifications in their specialist field.

HPL Electric & Power Ltd is a multi-product electric equipment company and is among the companies of India in the electrical equipment manufacturing segment with products ranging from LED Lightings, Industrial & Domestic Switchgears, Metering solutions, Wires & Cables, Modular Switches and Solar solutions covering the entire spectrum of commercial & industrial markets.

Hub Energy are an experienced, award winning, Yorkshire-based Solar PV and energy efficiency provider. Their projects cover domestic, commercial sector and large-scale investment projects from concept through to installation and aftercare. Hub Energy have a proven track record designing and installing Solar PV systems and have excellent customer satisfaction because of our customer first approach.

Hunt Electric is a national electrical design, build, and maintenance firm based in Bloomington, Minnesota. Hunt Electric has positioned itself as a pioneer in the most innovative, high-quality, and cost-effective electrical design-build efforts. Their commitment to cost-saving techniques, stringent safety practices, accuracy in estimating, and the implementation of new technologies makes us a unique and powerful electrical contracting company.