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.

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.

Hutaib Electricals are Pune-based manufacturers, supplier, and exporter of outstanding variety of cable trays, raceways draw boxes & industrial fabrications. The company has expertise in manufacturing products like perforated cable trays, ladder type cable trays, trunking cable trays / raceways, basket trays / wire mesh cable trays, junction boxes, raceways boxes and their accessories, such as bends, elbows, tees, cross, reducers, and many more.

Hy2gen develops, finances, builds, and operates plants for the production of green hydrogen, green ammonia, and hydrogen-based e-fuels worldwide. These products are used to create CO2-free or CO2-neutral and competitive fuels and industrial solutions. The first plants are being built in France, Norway, Canada, and Germany. Hy2gen’s goal is to become the market leader in the production of green hydrogen, green ammonia, and green e-fuels.

Hybrid Energy Solutions (HES) is a Project Coordination Company established in 2009 for primarily focusing on renewable project development needs in Asia. They only work with organisations that are ready to embrace natural energy solutions with wind and solar power developments.

Hydro One are the energy company devoted to helping customers and communities across Ontario live a better, brighter life. With a diverse team of engineers, project managers, power line workers and arborists, field staff, supervisors, new grads, students, electricians and technicians - they share a commitment to energizing life.

Hydro-Craft, established in 1958 in a small shop in Detroit, Michigan as a manufacturer of quality hydraulic tanks. They currently have two state-of-the-art plants located in Rochester Hills, Michigan and Henderson, Nevada, USA.

Hydroleap is reimagining the way the world is looking at water and wastewater. They provide innovative, chemical-free, high-performance, and modularized electrochemical technologies to replace conventional chemical and energy-intensive processes.

Hyundai Corporation provides customers with products and services under the optimum condition required by customers by developing various heavy chemical industrial products such as ships, machines, plants, automobiles, steel, metal, chemicals, electric and electronic products.

With more than 180 years of history, Iberdrola SA is currently a global energy leader, a major wind power producer and one of the largest electricity companies in the world in terms of stock market capitalization. They have been committed to clean energy for more than 20 years with the objective of exceeding 52,000 MW of renewable capacity by 2025.

The Illinois Power Agency exists to serve the people of Illinois by overseeing the electricity planning and procurement processes for residential and small commercial customers of Ameren, ComEd, and MidAmerican. It also manages the implementation of the Illinois Renewable Portfolio Standard.

Indian Electrical and Electronics Manufacturers' Association (IEEMA) is the apex association of manufacturers of electrical, industrial electronics and allied equipment in India. Founded in 1948, IEEMA is the first ISO-certified industry association with encompassing the complete value chain in power generation, transmission and distribution equipment, including new and renewable energy.

Indiana Michigan Power (I&M), an AEP Company, serves approximately 600,000 customers in East Central, Northeast and North Central Indiana and Southwest Michigan. Their line mechanics maintain more than 25,000 miles of power lines and they are part of AEP's transmission grid - the largest in the United States of America (USA).

Industrial Switchgear delivers quality, either for a one off panel, or a project managed, multi-panel, multi-site solution.

Ineco Energy was created to accelerate the deployment of sustainable energy solutions to fight climate change and protect the planet while saving customers money by reducing their energy bills. The company is passionate about educating the current and future leaders in understanding the delivery of real environmental benefits.

Ingenity Electric integrates the latest in environmentally-conscious propulsion technologies into the most demanding boating applications.

Insight EDA provides software that fills an unmet need for a worldwide customer base. The demand for electronic devices continues to increase globally. Manufacturers are forced to squeeze both performance and battery life as they compete with each other to create the "next best thing".

The Institute of Electrical Engineers of Japan is a scientific and professional organization based in Tokyo, Japan. The organization was founded in 1888. It has more than 23,000 members, including scientists, engineers, and students.

Instrumentation, Controls & Electrical Contractors, Inc. is a family owned, full service electrical contractor with a culture driven by a set of principle based core values that result in superior service through quality and safety. Their diverse staff of highly trained electrical professionals offer a wide array of skill sets, allowing them to provide total solution packages to the industrial and energy markets.

Inno - LED was born out of the demand from the industry for a quality LED Lighting Company which was accountable in terms of both Quality as well as Service Support. Inno LED are committed to producing LED Luminaires that outperform the competition and always exceed customer's expectations.

Intelux Electronics Private Limited is a pioneer in Energy Saving Products and solutions. They are the World-Class manufacturer of Power Electronic and Lighting Product. They have effectively serviced our customers to save energy with quality output of Lighting and power for two decades.

Intermountain Power Agency (IPA) is located in the Great Basin region of western Utah, USA. They generate an average of more than 13 million megawatt hours of energy each year from their two coal-fired units. The energy is delivered over the project’s AC and DC transmission systems to 35 participants in the project that principally serve Utah and Southern California, USA.