The geothermal energy industry in Texas is a rapidly growing sector, marked by companies that tap into the Earth's internal heat for power generation. Deep below the state's surface, these companies employ advanced technologies, leveraging the constant heat from the Earth's crust to operate power plants and supply clean, reliable energy. As a result, they play a crucial role in fighting climate change and diversifying the energy mix, contributing to a future that could see Texas less dependent on fossil fuels. From utilizing modern geosciences to pioneering design and construction of facilities, the state's geothermal firms offer a broad range of services that cater to the global shift towards sustainable power sources.


Top 25 geothermal energy companies in Texas

1. Calpine

  • Website: calpine.com
  • Headquarters: Houston, Texas, United States
  • Founded: 1984
  • Headcount: 1001-5000
  • Latest funding type: Acquired
  • LinkedIn

Calpine is a premier competitive power company that operates geothermal and natural gas-fired power plants. Their modern fleet utilizes advanced technologies to generate low-carbon and environmentally responsible power. They serve as a model for sustainable power generation.


2. Fervo Energy

  • Website: fervoenergy.com
  • Headquarters: Houston, Texas, United States
  • Founded: 2017
  • Headcount: 11-50
  • Latest funding type: Series C
  • LinkedIn

Fervo Energy is a company that specializes in developing next-generation geothermal projects to deliver 24/7 carbon-free energy. They leverage innovation in geoscience to accelerate the clean energy transition by applying proven technologies such as horizontal drilling and distributed fiber optic sensing.


3. Thermal Energy Partners, LLC

Thermal Energy Partners (TEP) is a renewable energy company based in Texas that specializes in geothermal project design, finance, construction, energy production and operation of facilities.


4. Alternative Energy Advisors

Alternative Energy Advisors is a consulting firm that offers project development, project finance, project construction, and project start-up and operations services to the alternative energy industry.


5. Jenbacher Limited

Jenbacher is a leading provider of renewable gas, natural gas, and hydrogen-rich solutions. They offer tailored power generating concepts that meet the needs of communities, industry, and the public. With a focus on sustainability, reliability, and economics, Jenbacher helps to provide access to sustainable and reliable power.


6. Mineral Technologies

  • Website: mtienergy.com
  • Headquarters: Midland, Texas, United States
  • Headcount: 11-50

MTI Energy is a company that provides customized renewable energy solutions with an emphasis on solar, wind, geothermal, and biomass technologies. Their services include project development, financing, design, engineering, construction, and maintenance for commercial and industrial clients worldwide.


7. Kepler Carbon ReCapture

Kepler Recapture is a company participating in the XPRIZE Carbon Removal competition. They aim to create a net-negative, gigaton-scale solution for rebalancing the atmosphere-ocean carbon cycle. With funding from the Musk Foundation, they are developing deep water spar platforms for CO₂ capture, renewable energy generation, and desalinated water supply.


8. METCO Engineering Inc.

METCO Engineering is a sustainable energy solutions company that offers custom-built financing alternatives for commercial real estate investors. They specialize in performance contracting and Design-Build Own Operate Maintain, helping clients manage their working capital needs and improve their balance sheets.


9. Allied Air Texas INC.

Allied Air Conditioning and Heating is a Texas-based company providing residential and commercial geothermal systems, factory trained technicians for repairs and installations, and energy-saving solutions for clients in Houston and nearby areas.


10. Cheniere Energy, Inc.

  • Website: cheniere.com
  • Headquarters: Houston, Texas, United States
  • Founded: 1983
  • Headcount: 1001-5000
  • LinkedIn

Cheniere Energy, Inc. is a full-service global provider of clean, secure, and affordable LNG. They offer proven infrastructure and energy solutions to support growth and development.


11. ENGIE North America Inc.

  • Website: engie-na.com
  • Headquarters: Houston, Texas, United States
  • Founded: 1981
  • Headcount: 5001-10000
  • Latest funding type: Undisclosed
  • LinkedIn

ENGIE North America is an energy company focused on providing efficient, long-term, carbon-reducing solutions. They support customers in their transition to renewable and low-carbon energy, while creating jobs, economic opportunities, and building trusted partnerships with customers and communities.


12. UPower Energy

  • Website: upowerenergy.com
  • Headquarters: Austin, Texas, United States
  • Headcount: 1-10

UPower Energy LLC is a company that operates in the Environmental Services industry. It employs 6-10 people and has $1M-$5M of revenue. The company is headquartered in Austin, Texas.


13. Green Mountain Energy Company

Green Mountain Energy is a sustainable energy company that offers renewable electricity plans and solar power solutions for businesses and residential customers. They provide clean and carbon-free energy alternatives to traditional electricity sources.


14. Raven Petroleum, L.L.C.

  • Website: ravenpetro.com
  • Headquarters: The Woodlands, Texas, United States
  • Founded: 2012
  • Headcount: 51-200
  • LinkedIn

Raven Petroleum, LLC is a development company based out of The Woodlands, TX that focuses on the energy sector. They buy, sell, and develop petroleum refineries, ethanol plants, and natural gas operations with an emphasis on clean energies.


15. Howard Energy Partners

Howard Energy Partners is a diversified, growth-oriented energy company focused on providing innovative midstream solutions for our customers. We aim to provide abundant, clean, low cost, reliable energy that powers communities and businesses and helps improve people’s quality of life.


16. Enchanted Rock

  • Website: enchantedrock.com
  • Headquarters: Houston, Texas, United States
  • Founded: 2006
  • Headcount: 51-200
  • Latest funding type: Series Unknown
  • LinkedIn

Enchanted Rock is a company that offers electrical resiliency-as-a-service and microgrid solutions. They provide reliable and sustainable power solutions for businesses, replacing expensive and harmful diesel-powered backups. With their proprietary technologies and expertise, they are redefining the microgrid industry.


17. Panda Power Funds

Panda Power Funds is a private equity firm specializing in clean energy investments. They develop, own, operate, and manage power generation projects, with a focus on renewable and sustainable sources. Their portfolio includes combined-cycle power plants, solar farms, and other clean energy facilities. With a strong team of industry professionals and extensive industry relationships, Panda Power Funds is well-positioned to contribute to the growth of the U.S. power sector.


18. Spruce Power

  • Website: sprucepower.com
  • Headquarters: Houston, Texas, United States
  • Founded: 2012
  • Headcount: 51-200
  • Latest funding type: Acquired
  • LinkedIn

Spruce Power is a leading owner and operator of distributed solar energy assets across the United States. They offer subscription-based services to over 52,000 customers, making renewable energy more accessible. With a 15-year track record in clean energy, Spruce provides flexible and reliable products to help homeowners take control of their power needs.


19. Think Power Solutions

Think Power Solutions is a company that offers innovative and sustainable energy solutions. They provide expertise in renewable energy, energy efficiency, and smart grid technology.


20. TritenIAG

TritenIAG specializes in converting biomass and landfill gas into hydrogen and electricity in a clean and responsible manner. They offer project development, project assurance, and project management services to inform critical decisions throughout the entire project lifecycle.


21. Rangel Renewables

Rangel Renewables is a clean energy company based in Cypress, TX. They offer clean energy solutions to residential and commercial customers, helping them reduce their carbon footprint and lower their energy costs.


22. GivePower

GivePower is a foundation that provides sustainable solar water farms to water-scarce regions, offering clean water access to thousands of people daily.


23. Trailstone Group

Trailstone Group is a global energy and technology company operating at the intersection of renewable and conventional power. They utilize their unparalleled reservoir of data to optimize assets, manage risk, and reduce operational costs in the energy market.


24. Laredo Energy

  • Website: laredoenergy.com
  • Headquarters: Houston, Texas, United States
  • Founded: 2001
  • Headcount: 11-50
  • Latest funding type: Private Equity
  • LinkedIn

Laredo Energy is a company that offers various products and services in the energy industry. They provide solutions for energy sourcing, production, and distribution. With a focus on sustainability and efficiency, they aim to meet the growing demand for clean and reliable energy.


25. EarthX

  • Website: earthx.org
  • Headquarters: Dallas, Texas, United States
  • Founded: 2011
  • Headcount: 51-200
  • LinkedIn

EarthX Expo is the world's largest green gathering that takes place annually around Earth Day in Dallas, Texas. It features conferences, exhibitions, and showcases focused on environmental and sustainability-related topics. The event aims to inspire, educate, and promote solutions for safeguarding the future of our planet.


Want to find more geothermal energy companies?


If you want to find more companies that offer varied services from advanced power generation to innovative project design you can do so with Inven. This list was built with Inven and there are hundreds of companies like these globally.


With Inven you'll also get to know the company's:


  • Ownership: Which of these are private equity backed? Which are family-owned?
  • Contact data: Who are the owners and CEO's? What are their emails and phone numbers?
  • Financials: How do these companies perform financially? What are their revenues and profit margins?

...and a lot more!