With a rich history spanning over 130 years, Megger is a well-established company renowned in the electrical testing and measurement industry. Our dedication to precision, reliability, and safety has earned us a distinguished reputation, making us a trusted partner for professionals and organisations in need of dependable electrical testing and measurement, including monitoring solutions. We serve a wide array of industries, spanning utilities, manufacturing, maintenance, renewable energy, heavy industry, transportation, and more. At Megger, our extensive product and service offerings encompass a broad spectrum of applications, addressing critical electrical measurements. These include insulation resistance testing, ground resistance testing, a comprehensive range of dielectric testing, advanced transformer diagnostics, DGA (Dissolved Gas Analysis), partial discharge analysis, cable fault locating and diagnostics, Smart Grid testing, and much more. | Megger is a well-established company renowned in the electrical testing and measurement industry. Our dedication to precision, reliability, and safety has earned us a distinguished reputation, making us a trusted partner for professionals and organizations in need of dependable electrical testing and measurement, including monitoring solutions. | With a rich history spanning over 130 years, Megger is a well-established company renowned in the electrical testing and measurement industry. Our dedication to precision, reliability, and safety has earned us a distinguished reputation, making us a trusted partner for professionals and organizations in need of dependable electrical testing and measurement, including monitoring solutions. We serve a wide array of industries, spanning utilities, manufacturing, maintenance, renewable energy, heavy industry, transportation, and more. At Megger, our extensive product and service offerings encompass a broad spectrum of applications, addressing critical electrical measurements. These include insulation resistance testing, ground resistance testing, a comprehensive range of dielectric testing, advanced transformer diagnostics, DGA (Dissolved Gas Analysis), partial discharge analysis, cable fault locating and diagnostics, Smart Grid testing, and much more.
Marangoni – Meiser
Marangoni•Meiser is already operate a joint venture in Brazil—launched operations at their new Power Transformer Cooling Systems facility in the United States in 2025. Located in Indianapolis, Indiana—a major U.S. industrial hub—the Marangoni•Meiser plant is already producing radiator fans.
JCL Energy
JCL Energy is an electrical equipment and service provider, supplying transformers, switchgear, rentals, and both emergency and scheduled field services. Backed by decades of industry experience, JCL combines project-specific customization, a national service team, and an expansive in-stock inventory to serve the ever increasing United States grid across North America – including contractors, developers, utilities, and commercial/industrial facilities. To learn more, visit www.JCL.Energy. | JCL Energy is an electrical equipment and service provider specializing in transformers, switchgear, rentals, and both emergency and scheduled field services. Backed by decades of industry experience, JCL combines project-specific customization, national service teams, and an expansive in-stock inventory to support the ever-increasing demands of the United States grid. To learn more, visit www.JCL.Energy | JCL Energy is the “people-first” electrical transformer provider that gets the job done right, fast, and with a smile. We bring over 150 years of transformer and electrical experience to the table, with friendly and helpful employees always willing to go the extra mile. Our customer-centric and high-energy team is ready to “Transform Your Project!” | JCL Energy is an electrical equipment and service provider, supplying transformers, switchgear, rentals, and both emergency and scheduled field services. Backed by decades of industry experience, JCL combines project-specific customization, national service teams, and an expansive in-stock inventory to support the ever-increasing demands of the United States grid.
Itesa
ITESA is Peru’s leading exporter of electrical transformers, with over 30 years of experience and more than 3,000 units delivered to the United States. We serve utilities, oil & gas, mining, wind, and solar industries with a product portfolio that includes single-phase pole-mounted, pad-mounted compact, substation, and submersible vault transformers—engineered
Insulation Technology Group – Lapp Insulators LLC / PPC Insulators
Insulation Technology Group (ITG) is an experienced international holding company operating in the market segments of manufacturing HV and MV electrical porcelain insulators. The company includes three major global brands: LAPP Insulators, PPC Insulators, and Cerisol, produced in eight manufacturing plants in Europe, North America, and South America.
IND Technology
IND Technology is a leader in innovative power grid monitoring solutions, specialising in advanced early fault detection for utility infrastructure. With offices in Australia, the USA and Asia, its flagship product, Early Fault Detection EFD, revolutionises grid reliability by providing real-time detection and pinpointing of faults to an accuracy of 10m in transmission lines, distribution networks, and underground cables before they occur. The EFD system enhances safety, reliability, prevents outages, and mitigates wildfire risks by identifying issues before failures occur. Trusted by some of the largest utilities in the US, Canada, Australia and Asia, IND Technology combines patented sensor technology with an advanced data analytic platform to deliver proactive and cost-effective grid management. Committed to modernising energy systems, IND Technology empowers utilities to build a safer, more resilient future. | IND Technology delivers innovative power grid monitoring with its Early Fault Detection (EFD™) system, providing real-time detection and identifying faults up to 10m accuracy before failure occur. Operating worldwide, IND enhances safety, reliability, and wildfire prevention. The technology is applicable for overheads, underground, distribution, transmission grid, railway, and other networks.
High to Low Voltage
High to Low Voltage (H2LV) delivers fast, no-nonsense power solutions for industrial, utility, data center, and renewable energy customers who can’t afford downtime. Through our family of companies, we provide end-to-end electrical power support across the full equipment lifecycle. Our capabilities include new and refurbished transformers, quick-ship switchgear, emergency rentals, rewinds and repairs, oil processing, maintenance, testing, and field services. Whether supporting planned construction or responding to urgent outages, we move quickly and communicate clearly. We exist for one reason: to solve problems fast and keep projects moving. No corporate runaround. No slow responses. Just honest communication, technical expertise, and solutions built around your schedule. When timelines are tight and reliability matters, High to Low Voltage delivers direct access to experts who understand the real pressures of energization, outages, and critical infrastructure. | High to Low Voltage keeps facilities running. From quick-ship transformers and switchgear to rentals, maintenance, and emergency service, we deliver complete power solutions. When uptime matters, we act fast, solve problems, and keep your operations safe, reliable, and on schedule. | High to Low Voltage (H2LV) delivers fast, no-nonsense power solutions for industrial, utility, data-center, and renewable-energy customers who can’t afford downtime. Our family of companies — H&H Transformers, High to Low Rentals, and High to Low Services — provides a full lifecycle approach to electrical power: new and refurbished transformers, quick-ship switchgear, emergency rentals, rewinds, repairs, oil processing, maintenance, testing, and field services. We exist for one reason: to solve problems fast and keep your project moving. No corporate runaround. No slow responses. No ghosting. Just honest communication, technical clarity, and solutions built around your schedule, not ours. Whether you need a transformer in hours, field services on a tight outage window, or a partner who understands the real pressures of construction timelines and facility energization, High to Low Voltage gives you a direct line to experts who care about your project. | High to Low Voltage is a solutions partner for quick-ship transformers, switchgear, rentals, and lifecycle services. From emergency replacements to planned projects, we deliver fast, honest support to keep operations powered and on schedule. We combine industry experience, in-house capabilities, and a no-nonsense approach to solve complex power challenges.
Heimdall Power Inc
Founded in 2016, Heimdall Power is a Norwegian technology company driving the digitalization of the world’s power grids. By combining patented sensors, advanced analytics, and AI-driven software, Heimdall Power enables utilities to unlock capacity, enhance reliability, and accelerate the clean energy transition. Recognized as the world’s leading grid intelligence solution, Heimdall Power is trusted by more than 50 utilities across 20 countries to help manage capacity, prevent outages, protect infrastructure, and streamline regulatory compliance. At the heart of Heimdall’s platform is the Neuron™—a power line–mounted sensor featuring award-winning industrial design, state-of-the-art communication technology, and proprietary drone-based installation capabilities. Together with its plug-and-play software platform, the Neuron empowers utilities with real-time situational awareness across applications such as dynamic line rating (DLR), ambient line rating (AAR), and asset health monitoring. Heimdall Power’s mission is simple: To help utilities optimize the grid and power better lives. | Heimdall Power’s grid intelligence solution is trusted by 50+ utilities in 20 countries. Our platform combines plug-and-play software with the Neuron™ sensor—featuring advanced communications, award-winning hardware, and drone installation—to optimize grid capacity, prevent outages, monitor asset health, and help utilities run safer, more efficient power
HAMPTON TEDDER ELECTRIC
Founded in 1958, Hampton Tedder Electric is a family owned and operated electrical contractor specializing in high voltage systems. For more than sixty years, we have provided comprehensive design, construction, maintenance, and testing services for overhead and underground. Our reputation has been built on safety, reliability, and technical excellence, making HTE a trusted partner to utilities, municipalities, and private system owners. Headquartered in Montclair, California, Hampton Tedder Electric has operated from the same facility for over sixty three years. Our nine acre headquarters is fully equipped with the tools, equipment, and materials required to construct complete high voltage systems. To better serve our clients, we now operate three offices and nine construction yards throughout California, Nevada, and Arizona, allowing us to respond quickly to projects and emergencies across the United States. Hampton Tedder Electric has successfully completed more than one billion dollars in high voltage projects. Our experience includes work for schools, hospitals, universities, utilities, municipalities, renewable energy facilities, and industrial clients. We maintain an exceptional safety record with an Experience Modification Rate of 0.58 and perform more than six thousand field safety inspections each year. Our mission is to be the safest high voltage contractor in the United States, and safety, compliance, and efficiency are the foundation of every project we perform. Our workforce is comprised of master journeymen, high voltage designers, linemen, cable splicers, civil operators, and test technicians. Each employee is provided with modern technology, tools, and equipment to safely design, build, maintain, and restore high voltage systems. Hampton Tedder Electric has logged more than ten million man hours on high voltage projects with very few incidents, reflecting our strong culture of continuous improvement and accountability. HTE’s managers and supervisors collectively bring more than five hundred years of high voltage field experience. Every IBEW certified supervisor and foreman is carefully selected to lead crews with professionalism, technical expertise, and a strong commitment to safety. Our teams are qualified to work on systems up to five hundred kilovolts and are certified to perform work for city, county, state, federal, and private agencies. Hampton Tedder Electric provides twenty four hour emergency response. We maintain more than five hundred pieces of heavy duty equipment and a ten million dollar inventory of high voltage materials ready for immediate installation, including power cable, transformers, switchgear, poles, hardware, conduit, and duct bank supplies. As a WBENC certified woman owned business, HTE proudly supports supplier diversity goals while delivering dependable high voltage solutions nationwide. Our approach combines proven methods with forward thinking innovation, ensuring every project meets evolving industry standards. We invest heavily in training, safety programs, and equipment modernization to continuously improve performance. Clients rely on Hampton Tedder Electric for responsive communication, disciplined project management, and consistent execution. Whether supporting routine maintenance, major infrastructure upgrades, or critical emergency restoration, our teams deliver dependable results while protecting people, assets, and communities through careful planning and disciplined field operations across diverse operating environments nationwide. | Hampton Tedder Electric, a WBENC-certified woman-owned business, has provided high-voltage design, construction, testing, and maintenance since 1958. With decades of proven experience, IBEW-certified crews, and a nationwide 24/7 response, we deliver safe, reliable, and efficient power solutions for utilities, municipalities, solar fields, hospitals, universities, and private clients.