# Top 35 Energy Technology companies in the United States
Tamtam tracks 35 Energy Technology companies headquartered in the United States. This list ranks all of them by number of employees on LinkedIn, led by GE Vernova, Baker Hughes and First Solar. Their median headcount is 147. Half of them were founded in 2015 or later. The most common headquarters are Houston (4), New York (2) and Oakland (2).
These US-based energy technology companies range from large groups to younger firms, focusing on electrifying and decarbonizing the planet. They specialize in diverse areas such as renewable energy generation, energy storage, and modernizing the power grid. Key players include GE Vernova, which focuses on sustainable energy, and Baker Hughes, providing innovative energy solutions. First Solar specializes in thin-film photovoltaic technology, while Ormat Technologies is a geothermal energy leader.
A notable pattern among these companies is the concentration of headquarters in Texas, particularly Houston, with companies like Baker Hughes and Solaris Energy Infrastructure. California also features prominently with firms like SB Energy and Peak Energy. The companies cover a broad spectrum of energy solutions, from traditional oil and gas efficiency improvements by Solaris Energy Infrastructure to advanced fusion energy development by Commonwealth Fusion Systems and SHINE Technologies, and grid modernization efforts by Base Power Company.
๐บ๐ธ United States ยท 35 companies ยท Updated Nov 15, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [GE Vernova](https://www.tamtam.ai/c/ge-vernova) (linktr.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 | Energy Technology | ๐บ๐ธ Boston | 70,646 | |
| 2 | [Baker Hughes](https://www.tamtam.ai/c/baker-hughes-houston) (bakerhughes.com)
Energy technology company providing innovative solutions globally, focusing on safety, efficiency, and sustainability in the energy and industrial sectors | Energy Technology | ๐บ๐ธ Houston | 67,440 | |
| 3 | [First Solar](https://www.tamtam.ai/c/first-solar) (firstsolar.com)
Leading American company specializing in advanced thin film photovoltaic technology, manufacturing high-performance solar modules for reliable power generation. | Energy Technology | ๐บ๐ธ Tempe | 6,686 | 1999 |
| 4 | [Ormat Technologies, Inc.](https://www.tamtam.ai/c/ormat-technologies-inc) (ormat.com)
A leading geothermal company focusing on renewable energy solutions, energy storage, and recovered energy generation with a global presence | Energy Technology | ๐บ๐ธ Reno | 1,337 | 1965 |
| 5 | [Commonwealth Fusion Systems](https://www.tamtam.ai/c/commonwealth-fusion-systems) (cfs.energy)
A company specializing in commercial fusion energy, developing compact power plants using HTS magnet technology to combat climate change | Energy Technology | ๐บ๐ธ Devens | 1,089 | 2018 |
| 6 | [Eos Energy Enterprises, Inc.](https://www.tamtam.ai/c/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 | Energy Technology | ๐บ๐ธ Edison | 469 | 2008 |
| 7 | [Solaris Energy Infrastructure](https://www.tamtam.ai/c/solaris-energy-infrastructure) (solaris-energy.com)
Innovative oil and gas industry leader improving wellsite performance with cutting-edge technologies, automated control systems, and customer-focused support | Energy Technology | ๐บ๐ธ Houston | 434 | 2014 |
| 8 | [Base Power Company](https://www.tamtam.ai/c/base-power-company) (basepowercompany.com)
Modernizing the aging power grid with a nationwide network of distributed batteries to strengthen infrastructure and reduce energy costs. | Energy Technology | ๐บ๐ธ Austin | 393 | 2023 |
| 9 | [SB Energy](https://www.tamtam.ai/c/sb-energy) (sbenergy.com)
SB Energy is a leading Climate Infrastructure and Technology Platform developing, owning, and operating renewable energy projects at scale | Energy Technology | ๐บ๐ธ San Francisco | 342 | 2019 |
| 10 | [SHINE Technologies](https://www.tamtam.ai/c/shine-technologies) (shinefusion.com)
The company accelerates the development of fusion energy technology to address current challenges in various industries such as medicine and energy | Energy Technology | ๐บ๐ธ Janesville | 342 | 2005 |
| 11 | [ON.energy](https://www.tamtam.ai/c/on-energy) (on.energy)
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 | ๐บ๐ธ Miami | 229 | 2016 |
| 12 | [Renew Home](https://www.tamtam.ai/c/renew-home) (renewhome.com)
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 | ๐บ๐ธ Oakland | 203 | |
| 13 | [Cleantech Industry Resources (CIR)](https://www.tamtam.ai/c/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 | Energy Technology | ๐บ๐ธ Burlington | 202 | 2012 |
| 14 | [Giga Energy](https://www.tamtam.ai/c/giga-energy) (gigaenergy.com)
International energy infrastructure company based in Houston & Shanghai, manufacturing electrical equipment, data centers, and power generation assets, with operations in North and South America | Energy Technology | ๐บ๐ธ Houston | 177 | 2019 |
| 15 | [Peak Energy](https://www.tamtam.ai/c/peak-energy) (peakenergy.com)
An American venture specializing in low-cost, giga-scale storage for clean, affordable, and reliable energy, with expertise in sodium-ion battery technology | Energy Technology | ๐บ๐ธ San Francisco Bay Area | 173 | 2023 |
| 16 | [Energy CX](https://www.tamtam.ai/c/energy-cx) (energycx.com)
Innovative energy procurement company focused on maximizing savings, transparency, and sustainability for businesses through technology and industry expertise Join now! | Energy Technology | ๐บ๐ธ Chicago | 161 | 2010 |
| 17 | [Rondo Energy](https://www.tamtam.ai/c/rondo-energy) (rondo.com)
Providing zero-carbon industrial heat solutions using a heat battery that powers processes with renewable electricity, reducing costs and emissions. | Energy Technology | ๐บ๐ธ Oakland | 159 | |
| 18 | [Zap Energy](https://www.tamtam.ai/c/zap-energy) (zapenergy.com)
Innovative company developing a low-cost, small fusion reactor as an alternative path to viable fusion energy, without relying on magnets | Energy Technology | ๐บ๐ธ Everett | 147 | 2017 |
| 19 | [Leap](https://www.tamtam.ai/c/leap-sacramento) (leap.energy)
A platform that integrates distributed energy resources with energy markets to access grid services revenue streams and create virtual power plants | Energy Technology | ๐บ๐ธ Sacramento | 112 | |
| 20 | [WellStat](https://www.tamtam.ai/c/wellstat) (wellstat.io)
Advanced data analytics and IoT integration for energy management, air quality improvement, and sustainable building performance optimization in built environments. | Energy Technology | ๐บ๐ธ New York | 76 | 2004 |
| 21 | [David Energy](https://www.tamtam.ai/c/david-energy) (davidenergy.com)
technology-driven electricity company integrating smart devices to optimize renewable energy use, reduce costs, and improve power reliability for homes and businesses | Energy Technology | ๐บ๐ธ New York | 57 | 2019 |
| 22 | [ISA](https://www.tamtam.ai/c/isa-sedona) (isaindustries.com)
A collective of entrepreneurs and engineers developing sustainable and affordable energy solutions to empower users towards energy independence | Energy Technology | ๐บ๐ธ Sedona | 35 | 2016 |
| 23 | [SISU Energy and Environmental](https://www.tamtam.ai/c/sisu-energy-and-environmental) (sisu-ee.com)
A solutions-driven partner specializing in emissions reduction, retrofit optimization, field service, waste heat recovery, renewables, and distributed energy for sustainable projects | Energy Technology | ๐บ๐ธ Tulsa | 35 | 2015 |
| 24 | [Verne](https://www.tamtam.ai/c/verne) (verne-power.com)
A cleantech startup accelerating the shift to zero-emission heavy transportation through innovative high-density hydrogen technology for trucks and heavy vehicles Visit website for career opportunities | Energy Technology | ๐บ๐ธ San Francisco | 25 | |
| 25 | [CAMX Power](https://www.tamtam.ai/c/camx-power) (camxpower.com)
Cutting-edge energy storage technology development company providing breakthrough battery innovations through deep expertise in lithium-ion systems and state-of-the-art facilities | Energy Technology | ๐บ๐ธ Lexington | 22 | 2014 |
| 26 | [Energy Company](https://www.tamtam.ai/c/energy-company) (energycompany.com)
A company specializing in renewable energy solutions such as solar panels, batteries, and electric vehicle charging stations | Energy Technology | ๐บ๐ธ Los Angeles | 19 | 2021 |
| 27 | [Vindum Engineering Inc.](https://www.tamtam.ai/c/vindum-engineering-inc) (vindum.com)
Specializing in high-pressure pumps, valves, and laboratory equipment since 1987 Known for innovative designs, durability, and global customer satisfaction | Energy Technology | ๐บ๐ธ Lodi | 10 | 1987 |
| 28 | [Capacitech Energy](https://www.tamtam.ai/c/capacitech-energy) (capacitechenergy.com)
Capacitech innovates energy storage by integrating it into power cords, helping customers enhance batteries and renewables while reducing costs | Energy Technology | ๐บ๐ธ Orlando | 6 | 2016 |
| 29 | [Thermal Energy HQ](https://www.tamtam.ai/c/thermal-energy-hq) (in.powerpanel.com)
Innovative solar technology solutions provider offering hybrid solar-thermal technology, rapid deployment systems, and sustainable energy solutions for various industries and applications | Energy Technology | ๐บ๐ธ Oxford | 6 | 2007 |
| 30 | [oilfield.aiยฎ](https://www.tamtam.ai/c/oilfield-ai) (maillance.com)
Global industrial AI SaaS company supporting oil & gas upstream digital transformation Provides tools combining physics and AI/ML for cost reduction and emissions | Energy Technology | ๐บ๐ธ Houston | 5 | 2017 |
| 31 | [Shomax Energy](https://www.tamtam.ai/c/shomax-energy) (shomax.ca)
A global leader in renewable and clean energy initiatives, focusing on quality development and operational excellence to deliver exceptional returns to investors | Energy Technology | ๐บ๐ธ Wichita Falls | 5 | |
| 32 | [Xeco Energy](https://www.tamtam.ai/c/xeco-energy) (xecoenergy.com)
Engineering and consulting firm offering energy management solutions for commercial and industrial clients globally, focusing on improving efficiencies and reducing costs | Energy Technology | ๐บ๐ธ Georgetown | 4 | 2013 |
| 33 | [Servant Energy Business Solutions (SEBS)](https://www.tamtam.ai/c/servant-energy-business-solutions-sebs) (servantenergy.com)
This company provides permanent and temporary power solutions, energy efficiency consultation, LED lighting, bill audits, waste/recycling consultation, EV charging stations, and solar power solutions | Energy Technology | ๐บ๐ธ Irving | 3 | 2010 |
| 34 | [Energy Driven Technologies, LLC (Editekk)](https://www.tamtam.ai/c/energy-driven-technologies-llc-editekk) (editekk.com)
The company develops custom surfaces and coatings using nanotechnology to enhance material performance, focusing on advanced materials for healthcare and energy devices | Energy Technology | ๐บ๐ธ State College | 3 | |
| 35 | [FinSat Inc.](https://www.tamtam.ai/c/finsat-inc) (finsat.space)
FinSat Inc integrates GIS and fintech to empower real estate industry professionals with tools and insights for informed decision-making and optimized investments | Energy Technology | ๐บ๐ธ Manhattan | 1 | 2023 |
## 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 United States
- [The largest companies in the United States](https://www.tamtam.ai/l/largest-companies-united-states) (104,982)
- [Multinational companies in the United States](https://www.tamtam.ai/l/multinational-companies-united-states) (16,192)
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## The same list elsewhere
- [Energy Technology companies in the world](https://www.tamtam.ai/l/energy-technology-companies-in-the-world) (101)
- [Energy Technology companies in North America](https://www.tamtam.ai/l/energy-technology-companies-in-north-america) (39)
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Source: https://www.tamtam.ai/l/energy-technology-companies-united-states