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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
GE Vernovalinktr.ee
A purpose-built company focused on electrifying the planet and decarbonizing it through a diverse portfolio of energy businesses, ensuring reliable and sustainable energy |
70,646 | |||
| 2 |
Baker Hughesbakerhughes.com
Energy technology company providing innovative solutions globally, focusing on safety, efficiency, and sustainability in the energy and industrial sectors |
67,440 | |||
| 3 |
First Solarfirstsolar.com
Leading American company specializing in advanced thin film photovoltaic technology, manufacturing high-performance solar modules for reliable power generation. |
6,686 | |||
| 4 | 5,696 | ||||
| 5 | 3,758 | ||||
| 6 |
APAR Industries Limitedapar.com
A global supplier of conductors, cables, oils, polymers, and lubricants, focusing on innovation, efficiency, and sustainability to solve real-world challenges |
2,804 | |||
| 7 |
INNIO Groupinnio.com
Provides innovative power generation and compression solutions with AI digital platform, supporting sustainable energy management and transition globally. |
2,781 | |||
| 8 |
Equans Nederlandequans.nl
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 |
2,776 | |||
| 9 |
KK Groupkkgroup.com
A greentech company specializing in electrical systems for wind turbines, offering development, manufacturing, installation, and maintenance services globally |
2,495 | |||
| 10 |
Çalık Enerjicalikenerji.com
Leading energy organization specializing in implementing successful projects globally using innovative solutions and state-of-the-art technologies for a sustainable future |
1,868 | |||
| 11 | 1,673 | ||||
| 12 |
Equans Switzerlandequans.ch
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 |
1,572 | |||
| 13 |
Clarke Energyclarke-energy.com
Specializes in energy efficient, low carbon and flexible energy systems, delivering projects with gas engines, biogas upgraders, battery storage, and more globally |
1,374 | |||
| 14 |
Ormat Technologies, Inc.ormat.com
A leading geothermal company focusing on renewable energy solutions, energy storage, and recovered energy generation with a global presence |
1,337 | |||
| 15 |
NDT Globalndt-global.com
Provider of advanced ultrasonic and non-ultrasonic inspection technologies delivering predictive insights for safer, cost-effective pipeline infrastructure management and risk reduction. |
1,310 | |||
| 16 |
Proservproserv.com
Specializing in energy technology solutions, our company offers innovative, flexible, and environmentally-friendly controls, monitoring, intelligence, and optimization services for the energy sector |
1,305 | |||
| 17 |
Commonwealth Fusion Systemscfs.energy
A company specializing in commercial fusion energy, developing compact power plants using HTS magnet technology to combat climate change |
1,089 | |||
| 18 | 1,069 | ||||
| 19 |
CRC Evanscrcevans.com
CRC Evans offers welding and coating services, technologies, and solutions for the energy and infrastructure industries on a global scale |
1,066 | |||
| 20 |
AMAZULamazul.mar.mil.br
A public organization under the Ministry of Defense specializing in developing and maintaining sensitive technologies for the Navy's nuclear and submarine programs |
804 | |||
| 21 |
Aksa Power Generationaksa.com.tr
Global leader in manufacturing a wide range of generator sets, lighting towers, and generator hardware, focusing on innovation, sustainability, and worldwide service coverage |
714 | |||
| 22 |
Teksanteksan.com
Turkish engineering company designs and manufactures generator sets, lighting towers, cogeneration-trigeneration solutions, and hybrid power systems, exporting products to over 130 countries |
701 | |||
| 23 |
Petrotec Grouppetrotec.com
A group of private companies specializing in equipment and management systems for the oil industry, as well as smart mobility solutions globally |
693 | |||
| 24 |
Smart DCCsmartdcc.co.uk
Digitising Britain's energy infrastructure through a secure wireless network connecting smart meters to energy suppliers and operators for efficiency. |
684 | |||
| 25 |
Peekay Steelpeekaysteel.com
Leading manufacturer of steel castings serving industries like Oil and Gas, Power, Mining, and Engineering sectors with high-quality products and cutting-edge technology |
643 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
ASTAastagroup.com
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 |
628 | |||
| 27 |
KJ Power Generatorkj.com.tr
Manufacturer of diesel generator sets (10-2750 kVA) adhering to international standards, exporting to 120+ countries, utilizing leading engine brands and innovative production approaches |
543 | |||
| 28 | 490 | ||||
| 29 |
Eos Energy Enterprises, Inc.eose.com
This company specializes in designing and manufacturing safe, scalable, and sustainable energy storage solutions to accelerate the shift to clean energy |
469 | |||
| 30 |
YEOyeo.com.tr
Leading automation and electrification solutions provider specializing in engineering, manufacturing, and integrated project solutions for various industries worldwide |
467 | |||
| 31 |
ÚJV Řež, a. s. (Nuclear Research Institute Rez plc)ujv.cz
Specializing in safe energy solutions, ÚJV Řež offers technical services, research, and infrastructure for nuclear energy, industry, and medicine through its subsidiaries |
460 | |||
| 32 |
Podpodenergy.com
Leading provider of electric vehicle charging solutions for homes, public spaces, and workplaces, making clean energy easy, affordable, and accessible. |
453 | |||
| 33 |
Solaris Energy Infrastructuresolaris-energy.com
Innovative oil and gas industry leader improving wellsite performance with cutting-edge technologies, automated control systems, and customer-focused support |
434 | |||
| 34 |
Base Power Companybasepowercompany.com
Modernizing the aging power grid with a nationwide network of distributed batteries to strengthen infrastructure and reduce energy costs. |
393 | |||
| 35 |
EA Technologyeatechnology.com
Global provider of power engineering solutions, specializing in asset management and smart grid solutions for energy, utilities, and infrastructure sectors |
367 | |||
| 36 |
Camlin Groupcamlingroup.com
A provider of innovative monitoring products and services improving safety, efficiency, resilience, and sustainability of electricity and rail networks |
366 | |||
| 37 | 349 | ||||
| 38 |
SB Energysbenergy.com
SB Energy is a leading Climate Infrastructure and Technology Platform developing, owning, and operating renewable energy projects at scale |
342 | |||
| 39 |
SHINE Technologiesshinefusion.com
The company accelerates the development of fusion energy technology to address current challenges in various industries such as medicine and energy |
342 | |||
| 40 |
PuREEnergy Indiapureenergy.co.in
Research-led company, pioneers battery energy storage systems, and electric two-wheelers. Advanced AI technology enhances user experience with enhanced performance, connectivity, convenience. |
339 | |||
| 41 |
ELiN Türkiyeelin.com.tr
Established in 1981, specializing in electrical construction consultancy, projects, and contracting Known for expertise, strong financial structure, timely delivery, and focus on customer satisfaction |
316 | |||
| 42 | 308 | ||||
| 43 |
Diggia Groupdiggia.com
Dedicated to promoting a transition to clean and renewable energies, offering innovative solutions for a sustainable economy and reducing greenhouse gas emissions |
294 | |||
| 44 | 229 | ||||
| 45 |
James Fisher Energyjames-fisher.com
International supplier of marine back deck, subsea equipment, and engineering services for global subsea contractors in decommissioning, construction, inspection, repair, and maintenance projects |
213 | |||
| 46 | 210 | ||||
| 47 |
Renew Homerenewhome.com
The company partners across the energy industry to help customers save energy and money at home, revolutionizing the way we power the world |
203 | |||
| 48 |
Cleantech Industry Resources (CIR)cleantechindustryresources.com
A company providing renewable energy project development and construction services with full transparency, efficiency, and 24-hour support for projects of any size |
202 | |||
| 49 | 186 | ||||
| 50 |
3P Energia3penergia.com.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 |
181 | |||
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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.
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