Harris Electric expanded again in the late 1930s when Vic Sundholm joined the firm. Soon, industrial design and large vessel wiring emerged as two other services for which Harris Electric became known.

The HARTING Technology Group is a leading global supplier of industrial connection technology. HARTING connectivity solutions are used in numerous industrial sectors. These include transportation, electromobility, renewable energy generation, automation and mechanical engineering.

Hartwell Electrical Contractors are electricians based in Witney, West Oxfordshire. They operate throughout Oxfordshire, Witney, Carterton, Brize Norton, Oxford and all parts of Oxfordshire. They cover everything from a simple light fitting change to complete installation of a new system and maintenance of the customer's existing one.

Hasnur General Trading LLC is an international group of companies with headquarters in Dubai, United Arab Emirates, with its network spread out in the Middle East, European, and African countries, they have grown to be one of the best electrical & lighting trading companies in the European and African region.

Hatzel & Buehler was one of the first electrical construction companies in the US. The firm provides electrical design, construction, engineering, integration, and maintenance services. Projects range from simple service calls to complex, multi-phased design-build projects nationwide.

Havells India Ltd. is a billion-dollar-plus organization, and is one of the largest & India's fastest growing electrical and power distribution equipment manufacturers with products ranging from Industrial & Domestic Circuit Protection Switchgear, Cables & Wires, Motors, Fans, Power Capacitors, Lamps, Luminaires for Domestic, Commercial & Industrial applications, Modular Switches, Water Heaters & Domestic Appliances covering the entire gamut of h

Inspired by an enlightened king more than a century ago, Hawaii was an early adopter of electricity to light homes and power industry. The ingenuity in creating and delivering power on these isolated islands is a unique story of innovation, connectivity and progressive thinking that continues today.

Hawkeye Electric is a commercial, residential, and industrial electrical contractor located in Cedar Rapids and Dubuque, Iowa.

HAYSYS is a business that has been providing Electronic Engineering services for over 20 years. In this time the company has continued to grow, and in addition to its success in the Air Traffic Management sector, diversifying to include products and services provided to the Electricity Network Distribution sector.

Hayward Tyler designs, manufactures and services performance-critical electric motors and pumps for high-pressure, high-temperature applications in the harshest environments across the global energy industry.

HBL Power Systems Ltd is an Indian engineering company listed on Indian stock exchanges. They have been in business since 1977, with a focus on manufacturing-led R&D, driven by their choice for businesses with high technological barriers and / or engineering intensity.

Heason provides specialist motion engineering consultancy, design, and manufacturing services across a diverse range of market sectors including aerospace, defense, printing, packaging, medical, lab automation, autosport, automotive, transportation, renewable energy, science, and factory automation.

Heath Electrical Services is a family run business with over 80 years of combined electrical experience. The team are NICEIC approved contractors, being assessed on a regular basis to ensure they are competent and capable of meeting the relevant technical and safety standards.

Calsion serves as the solution provider and system integrator of various emergency/normal power supply, whose products include diesel genset, gas genset, DUPS, cooling system, control system, power distribution system, etc.

Hein Electric Supply is Southeast Wisconsin's largest independent electrical wholesale distributor. Since 1946, they have grown from their original branch on 6th & Wells in Downtown Milwaukee, to 9 strategic locations throughout Southeastern Wisconsin including Downtown Milwaukee, Grafton, Menomonee Falls, Oak Creek, Oconomowoc, Pewaukee, Waukesha, West Allis, and West Bend.

Heinemann offers a wide range of OEM circuit protectors, with ratings from 0.01 to 1200 amperes. Their applications include computers, healthcare equipment, pleasure boats, and naval vessels, communications systems, electric locomotives and space vehicles.

Helios Electric delivers tailored solutions to meet their complex needs during all phases of electrical engineering and construction. Utilizing over 30 years of experience in industrial, utility, commercial, and mission-critical systems, they recognize the needs of discerning customers and know what it takes to get the job done right for them.

Heliox provides world-class smart energy management solutions that are tailored and scalable within a fast-changing e-mobility landscape. Heliox working toward a sustainable world where a seamless charging experience is the standard for every electric vehicle, and this transforms the way power every day.

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

HELLA’s business is based on two pillars: Vehicle lighting and illumination technology and vehicle parts trading. In addition, HELLA manufactures solutions for driver assistance, climate control systems and other electronic automotive applications. HELLA employs 36,000 people. In the future, the company will be part of the French automotive supplier Faurecia.

HELLA is a global, family-owned company, listed on the stock exchange, with more than 40,000 employees at over 125 locations in more than 35 countries. HIA offers automotive product and system solutions in areas of body electronics, energy management, steering systems, sensors and actuators to the passenger and commercial vehicle segments.

Hellman Electric Corporation is one of the metropolitan region's largest heavy construction commercial and industrial electrical contractors. The firm is a member of the International Brotherhood of Electrical Workers, Local Union 3, and is recognized as a pioneer in electrical construction for heavy construction projects.

The HELUKABEL brand stands for quality, reliability and innovation. With a company history of over 40 years, they’ve steadily acquired a broad spectrum of expertise and in-depth knowledge in many industries and key technologies.

Henan Pinggao Electric's products are widely used in China’s key power projects, Pinggao has ever provided the transmission and distribution equipments to national’s key projects, such as, the first of their 550kv high-voltage AC transmission project, the first 750kv UHV AC transmission project, the first intelligent demonstration project with the highest voltage level - 750kv Yan’an transformer substation.

Henan Senyuan Electric Co., Ltd. with around 8600 staff and a yearly turnover of 3 billion USD, mainly dedicated to the manufacture of intelligent high, medium, and low-voltage electricity generation, transmission and distribution facilities.

Hengdian Group is mainly engaged in the research and development, production, sales and services of four major industry products, including electrical and electronics, medical health, film and television, culture and tourism, and modern services.

The Gustav Hensel GmbH & Co. KG is a company specializing in the manufacture of innovative electrical installation and power distribution systems for facility equipment of buildings. Founded in 1931, Hensel represents a company group that is active worldwide and has about 900 employees, 600 of which are in Germany.

Hercules Electric Mobility is bringing powerful and scalable recreational electric mobility without range anxiety to power a new generation of electric boats! They have fully integrated solar charging, as part of their modular propulsion technologies for marine and recreational propulsion, scalable up to 1000HP, and bringing the first solid-state battery to the marine mobility market.

HERE Technologies is taking the way to a safer, greener future. The location platform is integrated into more than 160 million vehicles across the planet, using fresh and accurate data that they have been building for over 35 years – and continue to refresh daily.

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.