# Energy Technology companies around the world

Tamtam tracks 101 Energy Technology companies worldwide. This list ranks the 50 largest by number of employees on LinkedIn, led by GE Vernova, Baker Hughes and First Solar. Their median headcount is 643. Half of them were founded in 2000 or later. The most common headquarters are Istanbul (3), Aberdeen (2) and Houston (2).

These Energy Technology companies operate globally, focusing on diverse solutions for electrification, decarbonization, and sustainable energy. The list includes large enterprises like GE Vernova, which electrifies and decarbonizes the planet, and Baker Hughes, providing innovative energy solutions. First Solar specializes in thin-film photovoltaic technology, while EV focuses on well diagnosis for operational performance.

The companies represent a mix of established global players and more specialized firms. Notable examples include Enpal, which provides solar panels and smart energy management for households, and INNIO Group, offering power generation and compression solutions. The headquarters are distributed across various countries, indicating a global reach rather than a specific geographical cluster for these larger entities.

🌍 World · 50 companies · Updated Nov 15, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [GE Vernova](https://www.tamtam.ai/c/ge-vernova) (linktr.ee)<br>A purpose-built company focused on electrifying the planet and decarbonizing it through a diverse portfolio of energy businesses, ensuring reliable and sustainable energy | Energy Technology | 🇺🇸 Boston | 70,646 |  |
| 2 | [Baker Hughes](https://www.tamtam.ai/c/baker-hughes-houston) (bakerhughes.com)<br>Energy technology company providing innovative solutions globally, focusing on safety, efficiency, and sustainability in the energy and industrial sectors | Energy Technology | 🇺🇸 Houston | 67,440 |  |
| 3 | [First Solar](https://www.tamtam.ai/c/first-solar) (firstsolar.com)<br>Leading American company specializing in advanced thin film photovoltaic technology, manufacturing high-performance solar modules for reliable power generation. | Energy Technology | 🇺🇸 Tempe | 6,686 | 1999 |
| 4 | [EV](https://www.tamtam.ai/c/ev) (evcam.com)<br>Specializing in well diagnosis, this company provides visual information to help operators understand and resolve wellbore issues, reducing risk and increasing operational performance | Energy Technology | 🇬🇧 Norwich | 5,696 | 2000 |
| 5 | [Enpal](https://www.tamtam.ai/c/enpal) (enpal.de)<br>Leading provider of solar panels, heat pumps, and smart energy management technology integrating storage, charging, and trading for households. | Energy Technology | 🇩🇪 Berlin | 3,758 | 2017 |
| 6 | [APAR Industries Limited](https://www.tamtam.ai/c/apar-industries-limited) (apar.com)<br>A global supplier of conductors, cables, oils, polymers, and lubricants, focusing on innovation, efficiency, and sustainability to solve real-world challenges | Energy Technology | 🇮🇳 Mumbai | 2,804 | 1958 |
| 7 | [INNIO Group](https://www.tamtam.ai/c/innio-group) (innio.com)<br>Provides innovative power generation and compression solutions with AI digital platform, supporting sustainable energy management and transition globally. | Energy Technology | 🇩🇪 Munich | 2,781 |  |
| 8 | [Equans Nederland](https://www.tamtam.ai/c/equans-nederland) (equans.nl)<br>A global leader in technical services, part of the Bouygues Group Helping customers accelerate the energy, digital, and industrial transitions with 6,000 employees in the Netherlands | Energy Technology | 🇳🇱 Bunnik | 2,776 |  |
| 9 | [KK Group](https://www.tamtam.ai/c/kk-group) (kkgroup.com)<br>A greentech company specializing in electrical systems for wind turbines, offering development, manufacturing, installation, and maintenance services globally | Energy Technology | 🇩🇰 Ikast | 2,495 | 1981 |
| 10 | [Çalık Enerji](https://www.tamtam.ai/c/cal-k-enerji) (calikenerji.com)<br>Leading energy organization specializing in implementing successful projects globally using innovative solutions and state-of-the-art technologies for a sustainable future | Energy Technology | 🇹🇷 Istanbul | 1,868 |  |
| 11 | [FGH GmbH](https://www.tamtam.ai/c/fgh-gmbh) (fgh-ma.de)<br>A company founded in 1921 offering research, consulting, and certification services to the energy industry, focusing on electrical energy supply advancements | Energy Technology | 🇩🇪 Mannheim | 1,673 | 1921 |
| 12 | [Equans Switzerland](https://www.tamtam.ai/c/equans-switzerland) (equans.ch)<br>Leading provider in Switzerland for Energy Services, Facility Management, and Building Technology Offering high-quality solutions to reduce energy consumption and improve efficiency for various sectors | Energy Technology | 🇨🇭 Zurich | 1,572 | 2024 |
| 13 | [Clarke Energy](https://www.tamtam.ai/c/clarke-energy) (clarke-energy.com)<br>Specializes in energy efficient, low carbon and flexible energy systems, delivering projects with gas engines, biogas upgraders, battery storage, and more globally | Energy Technology | 🇬🇧 Liverpool | 1,374 | 1989 |
| 14 | [Ormat Technologies, Inc.](https://www.tamtam.ai/c/ormat-technologies-inc) (ormat.com)<br>A leading geothermal company focusing on renewable energy solutions, energy storage, and recovered energy generation with a global presence | Energy Technology | 🇺🇸 Reno | 1,337 | 1965 |
| 15 | [NDT Global](https://www.tamtam.ai/c/ndt-global) (ndt-global.com)<br>Provider of advanced ultrasonic and non-ultrasonic inspection technologies delivering predictive insights for safer, cost-effective pipeline infrastructure management and risk reduction. | Energy Technology | 🇨🇦 Quebec City | 1,310 | 2000 |
| 16 | [Proserv](https://www.tamtam.ai/c/proserv) (proserv.com)<br>Specializing in energy technology solutions, our company offers innovative, flexible, and environmentally-friendly controls, monitoring, intelligence, and optimization services for the energy sector | Energy Technology | 🇬🇧 Aberdeen | 1,305 |  |
| 17 | [Commonwealth Fusion Systems](https://www.tamtam.ai/c/commonwealth-fusion-systems) (cfs.energy)<br>A company specializing in commercial fusion energy, developing compact power plants using HTS magnet technology to combat climate change | Energy Technology | 🇺🇸 Devens | 1,089 | 2018 |
| 18 | [IMPSA](https://www.tamtam.ai/c/impsa) (impsa.com)<br>A century-old company providing integrated solutions for renewable power generation, process industry equipment, and environmental services with internationally certified quality management systems | Energy Technology | 🇦🇷 Godoy Cruz | 1,069 | 1907 |
| 19 | [CRC Evans](https://www.tamtam.ai/c/crc-evans) (crcevans.com)<br>CRC Evans offers welding and coating services, technologies, and solutions for the energy and infrastructure industries on a global scale | Energy Technology | 🇬🇧 Edinburgh | 1,066 | 1933 |
| 20 | [AMAZUL](https://www.tamtam.ai/c/amazul) (amazul.mar.mil.br)<br>A public organization under the Ministry of Defense specializing in developing and maintaining sensitive technologies for the Navy's nuclear and submarine programs | Energy Technology | 🇧🇷 São Paulo | 804 | 2013 |
| 21 | [Aksa Power Generation](https://www.tamtam.ai/c/aksa-power-generation) (aksa.com.tr)<br>Global leader in manufacturing a wide range of generator sets, lighting towers, and generator hardware, focusing on innovation, sustainability, and worldwide service coverage | Energy Technology | 🇹🇷 Istanbul | 714 | 1984 |
| 22 | [Teksan](https://www.tamtam.ai/c/teksan) (teksan.com)<br>Turkish engineering company designs and manufactures generator sets, lighting towers, cogeneration-trigeneration solutions, and hybrid power systems, exporting products to over 130 countries | Energy Technology | 🇹🇷 Istanbul | 701 | 1994 |
| 23 | [Petrotec Group](https://www.tamtam.ai/c/petrotec-group) (petrotec.com)<br>A group of private companies specializing in equipment and management systems for the oil industry, as well as smart mobility solutions globally | Energy Technology | 🇵🇹 Guimarães | 693 | 1983 |
| 24 | [Smart DCC](https://www.tamtam.ai/c/smart-dcc) (smartdcc.co.uk)<br>Digitising Britain's energy infrastructure through a secure wireless network connecting smart meters to energy suppliers and operators for efficiency. | Energy Technology | 🇬🇧 London | 684 | 2013 |
| 25 | [Peekay Steel](https://www.tamtam.ai/c/peekay-steel) (peekaysteel.com)<br>Leading manufacturer of steel castings serving industries like Oil and Gas, Power, Mining, and Engineering sectors with high-quality products and cutting-edge technology | Energy Technology | 🇮🇳 Kozhikode | 643 | 1991 |
| 26 | [ASTA](https://www.tamtam.ai/c/asta) (astagroup.com)<br>A global leader in producing high-quality copper components for high-voltage industries, energy transition, and sustainability, with a focus on innovation and circular economy concepts | Energy Technology | 🇦🇹 Oed | 628 | 1814 |
| 27 | [KJ Power Generator](https://www.tamtam.ai/c/kj-power-generator) (kj.com.tr)<br>Manufacturer of diesel generator sets (10-2750 kVA) adhering to international standards, exporting to 120+ countries, utilizing leading engine brands and innovative production approaches | Energy Technology | 🇹🇷 Kocaeli | 543 | 1996 |
| 28 | [LOHUM](https://www.tamtam.ai/c/lohum) (lohum.com)<br>Specializing in next-gen li-ion battery mobility & energy solutions, we manufacture batteries, provide 2nd life solutions, and recycle valuable materials | Energy Technology | 🇮🇳 New Delhi | 490 |  |
| 29 | [Eos Energy Enterprises, Inc.](https://www.tamtam.ai/c/eos-energy-enterprises-inc) (eose.com)<br>This company specializes in designing and manufacturing safe, scalable, and sustainable energy storage solutions to accelerate the shift to clean energy | Energy Technology | 🇺🇸 Edison | 469 | 2008 |
| 30 | [YEO](https://www.tamtam.ai/c/yeo) (yeo.com.tr)<br>Leading automation and electrification solutions provider specializing in engineering, manufacturing, and integrated project solutions for various industries worldwide | Energy Technology | 🇹🇷 Kartal | 467 | 2004 |
| 31 | [ÚJV Řež, a. s. (Nuclear Research Institute Rez plc)](https://www.tamtam.ai/c/ujv-rez-a-s-nuclear-research-institute-rez-plc) (ujv.cz)<br>Specializing in safe energy solutions, ÚJV Řež offers technical services, research, and infrastructure for nuclear energy, industry, and medicine through its subsidiaries | Energy Technology | 🇨🇿 Husinec-Řež | 460 | 1955 |
| 32 | [Pod](https://www.tamtam.ai/c/pod-london) (podenergy.com)<br>Leading provider of electric vehicle charging solutions for homes, public spaces, and workplaces, making clean energy easy, affordable, and accessible. | Energy Technology | 🇬🇧 London | 453 | 2009 |
| 33 | [Solaris Energy Infrastructure](https://www.tamtam.ai/c/solaris-energy-infrastructure) (solaris-energy.com)<br>Innovative oil and gas industry leader improving wellsite performance with cutting-edge technologies, automated control systems, and customer-focused support | Energy Technology | 🇺🇸 Houston | 434 | 2014 |
| 34 | [Base Power Company](https://www.tamtam.ai/c/base-power-company) (basepowercompany.com)<br>Modernizing the aging power grid with a nationwide network of distributed batteries to strengthen infrastructure and reduce energy costs. | Energy Technology | 🇺🇸 Austin | 393 | 2023 |
| 35 | [EA Technology](https://www.tamtam.ai/c/ea-technology) (eatechnology.com)<br>Global provider of power engineering solutions, specializing in asset management and smart grid solutions for energy, utilities, and infrastructure sectors | Energy Technology | 🇬🇧 Chester | 367 | 1966 |
| 36 | [Camlin Group](https://www.tamtam.ai/c/camlin-group) (camlingroup.com)<br>A provider of innovative monitoring products and services improving safety, efficiency, resilience, and sustainability of electricity and rail networks | Energy Technology | 🇬🇧 Lisburn | 366 | 2008 |
| 37 | [ROVOP](https://www.tamtam.ai/c/rovop) (rovop.com)<br>Global ROV specialist providing high-performing assets and personnel for exceptional subsea operations, reducing risk and cost while maximizing safety and performance | Energy Technology | 🇬🇧 Aberdeen | 349 | 2011 |
| 38 | [SB Energy](https://www.tamtam.ai/c/sb-energy) (sbenergy.com)<br>SB Energy is a leading Climate Infrastructure and Technology Platform developing, owning, and operating renewable energy projects at scale | Energy Technology | 🇺🇸 San Francisco | 342 | 2019 |
| 39 | [SHINE Technologies](https://www.tamtam.ai/c/shine-technologies) (shinefusion.com)<br>The company accelerates the development of fusion energy technology to address current challenges in various industries such as medicine and energy | Energy Technology | 🇺🇸 Janesville | 342 | 2005 |
| 40 | [PuREEnergy India](https://www.tamtam.ai/c/pureenergy-india) (pureenergy.co.in)<br>Research-led company, pioneers battery energy storage systems, and electric two-wheelers. Advanced AI technology enhances user experience with enhanced performance, connectivity, convenience. | Energy Technology | 🇮🇳 Sangareddy | 339 | 2015 |
| 41 | [ELiN Türkiye](https://www.tamtam.ai/c/elin-turkiye) (elin.com.tr)<br>Established in 1981, specializing in electrical construction consultancy, projects, and contracting Known for expertise, strong financial structure, timely delivery, and focus on customer satisfaction | Energy Technology | 🇹🇷 Ankara | 316 | 1981 |
| 42 | [Repos](https://www.tamtam.ai/c/repos) (bit.ly)<br>The company aims to revolutionize energy distribution in India by offering all types of fuels through a convenient app-based platform | Energy Technology | 🇮🇳 Pune | 308 | 2017 |
| 43 | [Diggia Group](https://www.tamtam.ai/c/diggia-group) (diggia.com)<br>Dedicated to promoting a transition to clean and renewable energies, offering innovative solutions for a sustainable economy and reducing greenhouse gas emissions | Energy Technology | 🇪🇸 Madrid | 294 |  |
| 44 | [ON.energy](https://www.tamtam.ai/c/on-energy) (on.energy)<br>Industry leader in energy storage development in the Americas, offering advanced analytics, AI-powered energy management software, and custom solutions for grid-scale and C&I projects | Energy Technology | 🇺🇸 Miami | 229 | 2016 |
| 45 | [James Fisher Energy](https://www.tamtam.ai/c/james-fisher-energy) (james-fisher.com)<br>International supplier of marine back deck, subsea equipment, and engineering services for global subsea contractors in decommissioning, construction, inspection, repair, and maintenance projects | Energy Technology | 🇬🇧 Aberdeenshire | 213 | 1874 |
| 46 | [ALTEO](https://www.tamtam.ai/c/alteo) (alteo.hu)<br>A Hungarian energy company specializes in renewable energy production, trading, and customized energy services for businesses, committed to sustainability and shareholder value | Energy Technology | 🇭🇺 Budapest | 210 | 2008 |
| 47 | [Renew Home](https://www.tamtam.ai/c/renew-home) (renewhome.com)<br>The company partners across the energy industry to help customers save energy and money at home, revolutionizing the way we power the world | Energy Technology | 🇺🇸 Oakland | 203 |  |
| 48 | [Cleantech Industry Resources (CIR)](https://www.tamtam.ai/c/cleantech-industry-resources-cir) (cleantechindustryresources.com)<br>A company providing renewable energy project development and construction services with full transparency, efficiency, and 24-hour support for projects of any size | Energy Technology | 🇺🇸 Burlington | 202 | 2012 |
| 49 | [Edina](https://www.tamtam.ai/c/edina) (edina.eu)<br>Specializing in engineering, installation, and asset-care support for hydrogen-enabled gas engines, standby generation, and battery energy storage systems, globally promoting low-carbon power generation | Energy Technology | 🇬🇧 Stockport | 186 | 1985 |
| 50 | [3P Energia](https://www.tamtam.ai/c/3p-energia) (3penergia.com.br)<br>The company specializes in designing and implementing solar energy solutions with a focus on reliability, technical excellence, and customer respect They have a strong track record of successful installations | Energy Technology | 🇧🇷 Salvador | 181 | 2016 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 15, 2026.

## More company lists in the world

- [The largest companies in the world](https://www.tamtam.ai/l/largest-companies-in-the-world) (415,093)
- [Multinational companies in the world](https://www.tamtam.ai/l/multinational-companies-in-the-world) (74,908)
- [Manufacturers in the world](https://www.tamtam.ai/l/manufacturers-in-the-world) (39,570)
- [Retail chains in the world](https://www.tamtam.ai/l/retail-chains-in-the-world) (35,502)
- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,336)
- [Financial services firms in the world](https://www.tamtam.ai/l/financial-services-firms-in-the-world) (26,817)
- [Professional services firms in the world](https://www.tamtam.ai/l/professional-services-firms-in-the-world) (24,736)
- [Education providers in the world](https://www.tamtam.ai/l/education-companies-in-the-world) (23,937)
- [IT Services and IT Consulting companies in the world](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-the-world) (23,573)
- [Critical infrastructure operators in the world](https://www.tamtam.ai/l/critical-infrastructure-operators-in-the-world) (23,309)
- [SaaS companies in the world](https://www.tamtam.ai/l/saas-companies-in-the-world) (22,460)
- [IT services companies in the world](https://www.tamtam.ai/l/it-services-companies-in-the-world) (20,934)
- [Software Development companies in the world](https://www.tamtam.ai/l/software-development-companies-in-the-world) (20,532)
- [Hardware manufacturers in the world](https://www.tamtam.ai/l/hardware-companies-in-the-world) (20,150)
- [Financial Services companies in the world](https://www.tamtam.ai/l/financial-services-companies-in-the-world) (19,958)
- [Companies with a mobile app in the world](https://www.tamtam.ai/l/companies-with-mobile-app-in-the-world) (18,921)
- [Public sector organisations in the world](https://www.tamtam.ai/l/public-sector-organisations-in-the-world) (18,491)
- [Healthcare providers in the world](https://www.tamtam.ai/l/healthcare-providers-in-the-world) (16,034)
- [Consulting firms in the world](https://www.tamtam.ai/l/consulting-firms-in-the-world) (16,009)
- [Family-owned companies in the world](https://www.tamtam.ai/l/family-owned-companies-in-the-world) (14,667)
- [Distributors and wholesalers in the world](https://www.tamtam.ai/l/distributors-and-wholesalers-in-the-world) (13,471)
- [Hospitals and Health Care companies in the world](https://www.tamtam.ai/l/hospitals-and-health-care-companies-in-the-world) (12,914)
- [Corporate groups and holding companies in the world](https://www.tamtam.ai/l/holding-companies-in-the-world) (12,863)
- [E-commerce companies in the world](https://www.tamtam.ai/l/ecommerce-companies-in-the-world) (12,015)

## The same list elsewhere

- [Energy Technology companies in Europe](https://www.tamtam.ai/l/energy-technology-companies-in-europe) (48)
- [Energy Technology companies in North America](https://www.tamtam.ai/l/energy-technology-companies-in-north-america) (39)
- [Energy Technology companies in the United States](https://www.tamtam.ai/l/energy-technology-companies-united-states) (35)

---

Source: https://www.tamtam.ai/l/energy-technology-companies-in-the-world