Geothermal energy installation companies focus on harnessing sustainable energy from the Earth’s core for heating and cooling needs. These firms create various systems, including underground loops and heat pumps, that utilize this clean resource. As a growing sector, the industry is attracting investment due to increasing demand for renewable energy solutions and energy-efficient technologies. Emerging trends include innovative drilling technologies and hybrid systems that combine geothermal with other renewable sources, positioning the sector for substantial growth.

This list features 27 prominent geothermal energy installation companies located in Nan, showcasing a range of sizes from startups to larger firms. With headquarters in multiple countries, these companies were mostly founded in the early 2000s and specialize in varied services like geothermal HVAC installations and project management. Each brings unique expertise, whether in residential systems or large-scale geothermal projects, highlighting the increasing global interest in energy sustainability.

Read on to discover the top geothermal energy installation companies.

Top 27 Geothermal Energy Companies

1. Dandelion Energy

• Website: dandelionenergy.com
• Ownership type: Private Equity
• Headquarters: Mount Kisco, New York, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Series C, $40.0M, September 2024
• Founded year: 2017
• Headcount: 51-200
• LinkedIn: dandelion-geothermal

Dandelion Energy, based in Mount Kisco, New York, is a private equity-backed geothermal energy provider that specializes in residential heating and cooling solutions. Founded in 2017, the company has quickly made a name for itself in the geothermal industry by focusing on energy efficiency and sustainability. Dandelion offers a comprehensive suite of services, including geothermal system design, ground loop installation, and drilling services tailored for homeowners and builders. Their innovative Dandelion Geo heat pump is engineered for high performance, enabling customers to significantly reduce their energy costs and environmental impact. With over 2,000 residential installations completed, Dandelion has developed a strong presence in the market. The company has also established a nationwide network of authorized installers, further expanding its reach. In September 2024, Dandelion secured $40 million in Series C funding, underscoring investor confidence in its growth potential and commitment to advancing geothermal technology.

2. Calpine

• Website: calpine.com
• Ownership type: Corporate
• Headquarters: Houston, Texas, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: $16.4B, January 2025
• Founded year: 1984
• Headcount: 1001-5000
• LinkedIn: calpine

Calpine Corporation, based in Houston, Texas, is an energy company that specializes in electricity generation from natural gas and geothermal resources. Founded in 1984, Calpine has grown to operate 77 facilities across the United States, Canada, and Mexico, generating approximately 27,000 megawatts of electricity. The company is particularly noted for its geothermal operations at The Geysers in Northern California, where it manages 725 megawatts of geothermal power, making it the largest geothermal power complex in the U.S. Calpine is committed to sustainability and innovation, focusing on low-carbon energy solutions and community impact. The company has a workforce of over 2,400 employees and emphasizes operational excellence and technological advancement in its energy generation processes. Calpine's strategic initiatives include investments in carbon capture technology and battery storage, further solidifying its position in the clean energy sector.

3. EarthLinked Technologies, Inc.

• Website: earthlinked.com
• Ownership type: Private
• Headquarters: Lakeland, Florida, United States (USA)
• Employee distribution: United States (USA) 74%, United Kingdom (UK) 26%
• Founded year: 1980
• Headcount: 11-50
• LinkedIn: earthlinked-technologies-inc.

EarthLinked Technologies, Inc., based in Lakeland, Florida, has been a player in the geothermal energy sector since its founding in 1980. The company specializes in geothermal HVAC systems designed for both residential and commercial use. Their products are engineered to provide substantial energy savings and minimize environmental impact, making them a viable option for energy-conscious consumers. EarthLinked operates through a network of authorized dealers, ensuring that customers receive professional installation and ongoing support. The company is committed to innovation, continuously refining its product offerings to enhance efficiency and performance. Their geothermal systems utilize the earth's stored solar energy, providing a sustainable solution for heating and cooling needs. EarthLinked's focus on quality and customer satisfaction has positioned them as a notable entity in the geothermal energy installation market.

4. Dalkia

• Website: dalkia.fr
• Ownership type: Corporate
• Headquarters: Chemy, Hauts-De-France, France
• Employee distribution: France 94%, United Kingdom (UK) 3%, Other 3%
• Latest funding: June 2014
• Founded year: 1937
• Headcount: 10001+
• LinkedIn: dalkia

Dalkia, a subsidiary of the EDF Group, is an energy services company based in Chemy, Hauts-De-France, France. Founded in 1937, Dalkia specializes in renewable and recovery energy solutions, providing tailored energy efficiency services across multiple sectors, including healthcare, municipalities, and industries. The company is committed to reducing energy consumption and carbon emissions through innovative technologies and performance contracts. Dalkia has a strong presence in France, with 94% of its workforce based there, and it also operates in the United Kingdom and other regions. Their services include the development of networks for heating and cooling, biomass, geothermal energy, and other renewable sources. Dalkia's approach emphasizes local energy solutions and aims to help clients achieve significant energy savings while contributing to environmental sustainability.

5. Aardyn B.V.

• Website: aardyn.nl
• Ownership type: Corporate
• Headquarters: Dordrecht, South Holland, Netherlands
• Employee distribution: Netherlands 100%
• Latest funding: October 2023
• Founded year: 2011
• Headcount: 11-50
• LinkedIn: aardyn-bv

Aardyn B.V., based in Dordrecht, South Holland, is a geothermal energy company founded in 2011. The firm specializes in the development, management, and operation of geothermal projects across the Netherlands. With a team of approximately 30 professionals, Aardyn is dedicated to providing sustainable heating solutions to businesses and local governments, thereby contributing to the transition towards renewable energy. Their approach combines geological research, financial modeling, and project management to ensure the successful production of geothermal energy. Recently, Aardyn was acquired by Gaia Energy B.V., which marks a significant milestone in their growth and ambition to realize a geothermal potential of 500 MW through a portfolio of over 25 projects. Aardyn's operational expertise and commitment to safety and environmental standards position them as a key player in the geothermal energy sector.

6. Geointegral

• Website: geointegral.es
• Ownership type: Private
• Headquarters: Spain
• Employee distribution: Spain 100%
• Founded year: 2011
• Headcount: 1-10
• LinkedIn: geointegral

Geointegral, established in 2011, is a private company based in Spain that specializes in geothermal energy solutions. The firm focuses on the design and installation of heating and cooling systems that utilize renewable geothermal technology. Their services cater to a wide array of clients, including residential, commercial, and industrial sectors. Geointegral's offerings include radiant floor heating, pool heating, and temperature control for industrial processes. The company prides itself on enhancing energy efficiency and sustainability through its geothermal installations. They also explore hybrid solutions that combine geothermal energy with aerothermal and photovoltaic technologies, showcasing their innovative approach to energy management. With a small team of around 18 employees, Geointegral is dedicated to executing geothermal projects that meet the specific needs of their clients, contributing to the growth of renewable energy in Spain.

7. Midwest Geothermal

• Website: mwgeothermal.com
• Ownership type: Private
• Headquarters: Grand Rapids, Michigan, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: midwest-geothermal

Midwest Geothermal, based in Grand Rapids, Michigan, is a private geothermal energy company that specializes in the installation of heating and cooling systems for both residential and commercial clients. Since its inception in 2007, the company has focused on providing efficient geothermal solutions that not only reduce energy costs but also minimize environmental impact. With a team of trained professionals, Midwest Geothermal offers a range of services, including geothermal ground-loop installation and heat pump installation. They are recognized for their expertise in drilling and installation, having completed over 4.5 million vertical bore feet across the United States. The company is licensed to operate in multiple states and is committed to delivering high-quality geothermal systems that enhance energy efficiency and indoor comfort. Their approach includes thorough project management, from budgeting and feasibility studies to final commissioning, ensuring successful outcomes for their clients.

8. Haliburton Geothermal

• Website: haliburtongeothermal.com
• Ownership type: Private
• Headquarters: United States (USA)
• Employee distribution: Oman 50%, Canada 50%
• Founded year: 2007
• Headcount: 1-10
• LinkedIn: haliburton-geothermal

Haliburton Geothermal is a private service company based in Haliburton, Ontario, specializing in the installation of geothermal heating and cooling systems. Established in 2007, the company has focused on providing energy-efficient solutions for homeowners, cottage owners, and commercial properties. With a commitment to environmental sustainability, Haliburton Geothermal has successfully installed over 50 geothermal systems in Haliburton County and neighboring areas. The company offers a range of services, including horizontal, vertical, and lake loop geothermal systems, and emphasizes a customer-centric approach throughout the installation process. Operated by Greg Brown and his team, Haliburton Geothermal leverages over 30 years of construction experience to ensure high-quality service and customer satisfaction.

9. Comfortworks, Inc.

• Website: comfort.works
• Ownership type: Private
• Headquarters: Oklahoma City, Oklahoma, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: comfortworks-inc

Comfortworks, Inc., based in Oklahoma City, Oklahoma, is a private company founded in 2007 that specializes in geothermal HVAC systems. With a team of 23 employees, Comfortworks focuses on providing installation and maintenance services tailored to both residential and commercial clients. The company emphasizes energy efficiency and sustainability, helping customers achieve significant savings on heating and cooling costs through innovative geothermal technology. Comfortworks has successfully installed over 3,000 geothermal systems, including more than 700 in Habitat for Humanity homes, showcasing their commitment to community and environmental responsibility. Their services also include guidance on federal tax credits and local utility rebates, making geothermal systems not only an environmentally friendly choice but also a financially sound investment for homeowners and businesses alike.

10. miEnergy

• Website: mienergy.ca
• Ownership type: Private
• Headquarters: Saskatoon, Saskatchewan, Canada
• Employee distribution: Canada 100%
• Founded year: 2000
• Headcount: 51-200
• LinkedIn: mienergy

miEnergy, based in Saskatoon, Saskatchewan, is a private renewable energy provider that has been in operation since 2000. The company specializes in solar and geothermal energy solutions, catering to residential, commercial, and agricultural clients. With a workforce of approximately 31 employees, miEnergy has successfully completed over 2,000 projects across Western Canada, demonstrating their expertise in the renewable energy sector. Their geothermal offerings include heating and cooling systems that leverage the earth's temperature, promising significant savings on energy costs for homeowners and businesses alike. miEnergy is dedicated to sustainability, helping clients reduce their energy expenses and environmental impact through innovative energy solutions. Their commitment to quality is underscored by their Power Pledge guarantee, which assures customers of reliable energy production from their installations.

11. Axiclim

• Website: axiclim.fr
• Ownership type: Private
• Headquarters: Arnage, Pays De La Loire, France
• Employee distribution: France 100%
• Founded year: 2000
• Headcount: 51-200
• LinkedIn: axiclim

Axiclim, founded in 2000 and based in Arnage, Pays De La Loire, France, is a private company that specializes in climate engineering and energy solutions. With a workforce of approximately 36 employees, Axiclim has established itself as a key player in the installation and maintenance of heating and cooling systems, particularly focusing on energy efficiency and renewable energy solutions. The company has a strong emphasis on geothermal energy, offering various types of heat pumps, including ground-source and water-source systems. Over the past two decades, Axiclim has completed more than 5,000 installations, showcasing their expertise and commitment to helping both residential and commercial clients reduce energy costs and environmental impact. Their certifications, including being recognized as an RGE (Reconnu Garant de l'Environnement) artisan, further validate their proficiency in the field. Axiclim's dedication to making renewable energy accessible aligns with current trends in energy sustainability.

12. Géothermique

• Website: geothermique-normandie.com
• Ownership type: Private
• Headquarters: Eslettes, Normandy, France
• Employee distribution: France 100%
• Founded year: 1997
• Headcount: 11-50
• LinkedIn: g%c3%a9othermique

Géothermique, based in Eslettes, Normandy, France, is a private heating service provider that specializes in energy efficiency solutions. Founded in 1997, the company has over 25 years of experience in the industry. They offer a range of services including geothermal heating, heat pump installations, and solar panel setups, catering to both homeowners and businesses looking to reduce energy costs and enhance sustainability. Géothermique is dedicated to providing installation, maintenance, and support for their systems, ensuring that clients receive comprehensive service. The company is certified RGE, which highlights their commitment to quality and environmental standards. They operate primarily in the Normandy region, covering several departments, and have built a reputation for reliability and customer satisfaction, as reflected in numerous positive testimonials from clients.

13. Pansogal Energías Renovables

• Website: pansogal.com
• Ownership type: Private
• Headquarters: O Milladoiro, A Coruña, Spain
• Employee distribution: Spain 100%
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: pansogal-slne

Pansogal Energías Renovables, founded in 2006 and based in O Milladoiro, A Coruña, Spain, is a private company specializing in renewable energy solutions. With a workforce of 11 to 50 employees, Pansogal focuses on the installation and maintenance of solar, geothermal, and aerothermal energy systems. Their services are designed to enhance energy efficiency for a wide range of clients, including businesses, industries, and private individuals. Pansogal's geothermal offerings provide solutions for heating, cooling, and hot water, showcasing their technical expertise in this area. The company operates throughout Spain, demonstrating a strong regional presence in the renewable energy sector. Their commitment to helping clients transition to sustainable energy sources is evident in their project approach, which emphasizes cost reduction and energy independence.

14. Eavor Technologies Inc.

• Website: eavor.com
• Ownership type: Private Equity
• Headquarters: Calgary, Alberta, Canada
• Employee distribution: Canada 90%, Germany 3%, United States (USA) 3%, Other 3%
• Latest funding: Other (Debt), $139.5M, May 2024
• Founded year: 2017
• Headcount: 51-200
• LinkedIn: eavor

Eavor Technologies Inc., based in Calgary, Alberta, is an energy technology firm that specializes in geothermal energy solutions. Founded in 2017, the company has developed innovative projects like Eavor-Europe™, Eavor-Deep™, and Eavor-Lite™, which are designed to provide scalable and clean energy alternatives. Eavor's unique Eavor-Loop™ technology represents a significant advancement in geothermal energy, allowing for clean baseload power without the environmental concerns associated with traditional geothermal methods, such as fracking or aquifer contamination. The company primarily serves energy developers looking for sustainable energy solutions. Eavor has also attracted substantial investment, with a recent funding round totaling approximately $139 million, reflecting strong market interest in their technology and projects. Their commitment to creating a cleaner energy future positions them as a notable player in the geothermal energy sector.

15. Ranzato Impianti

• Website: ranzatoimpianti.it
• Ownership type: Corporate
• Headquarters: Padua, Italy
• Employee distribution: Italy 100%
• Latest funding: October 2022
• Founded year: 1986
• Headcount: 51-200
• LinkedIn: ranzato-impianti

Ranzato Impianti, founded in 1986 and based in Padua, Italy, is an energy service company specializing in electrical installations, energy efficiency renovations, and facility management. With a workforce of approximately 79 employees, the company serves both residential and commercial sectors, providing innovative solutions aimed at enhancing energy performance and system reliability. Ranzato Impianti has expanded its services beyond Italy, reaching international markets, including Hungary and Panama. The company operates through five main divisions: electrical systems, energy efficiency and building renovations, thermohydraulic systems, automation and security, and facility management. Notably, Ranzato Impianti has installed over 12,000 photovoltaic modules and is recognized for its commitment to energy efficiency, having obtained ESCO certification in 2013. This certification enables them to offer comprehensive energy solutions, including geothermal installations, which are part of their broader focus on renewable energy technologies.

16. Geo Concept

• Website: geoconcept.hu
• Ownership type: Private
• Headquarters: Budapest, Budapest, Hungary
• Employee distribution: Hungary 100%
• Founded year: 2015
• Headcount: 11-50
• LinkedIn: geo-concept-hu

Geo Concept Kft. is a private service company based in Budapest, Hungary, founded in 2015. The company specializes in geothermal systems and heat pump technology, providing comprehensive services that include the design, installation, and maintenance of various heating and cooling solutions. They serve a wide array of clients, from residential to commercial and industrial sectors, emphasizing energy efficiency and sustainability in their operations. Geo Concept has completed over 100 projects, showcasing their expertise in the field. Notably, they were involved in the installation of the MOL Campus geothermal system, which is recognized as one of the largest geothermal systems in Hungary. Their focus on innovative solutions and long-term guarantees for their systems further solidifies their position in the geothermal energy market.

17. Supreme Energy

• Website: supreme-energy.com
• Ownership type: Private
• Headquarters: South Jakarta, Jakarta, Indonesia
• Employee distribution: Indonesia 98%, United States (USA) 2%
• Latest funding: Other (Debt), $92.6M, January 2025
• Founded year: 2008
• Headcount: 201-500
• LinkedIn: supreme-energy-muara-laboh

Supreme Energy, founded in 2008 and based in South Jakarta, Indonesia, is a private company dedicated to the development of geothermal energy solutions. The firm focuses on sustainable energy production, engaging in activities such as drilling, construction of power plants, and the overall development of geothermal resources. Supreme Energy operates several projects, including PT Supreme Energy Muara Laboh, PT Supreme Energy Rantau Dedap, and PT Supreme Energy Rajabasa, each contributing to the generation of clean electricity. The company has established partnerships with government entities and energy companies, showcasing its role in providing reliable energy sources. Recently, Supreme Energy secured $92.6 million in funding, reflecting its ongoing commitment to advancing geothermal energy initiatives in Indonesia.

18. DrillHeat

• Website: drillheat.com
• Ownership type: Private
• Headquarters: Maisse, Île-De-France, France
• Employee distribution: France 100%
• Founded year: 2022
• Headcount: 11-50
• LinkedIn: drillheat

DrillHeat, based in Maisse, Île-De-France, is a private company founded in 2022 that specializes in geothermal energy solutions. As a subsidiary of the Arverne Group, DrillHeat is dedicated to providing geothermal drilling and installation services aimed at both public and private sectors. The company emphasizes sustainable energy solutions for heating and cooling, offering comprehensive project management and technical support to ensure effective implementation of geothermal systems. With a team of 18 employees, DrillHeat is fully operational in France and actively collaborates with local drilling companies to enhance its service offerings. Their recent projects, including a significant geothermal installation for an EHPAD facility, highlight their growing presence in the industry and commitment to reducing carbon footprints through innovative geothermal solutions.

19. Allied Well Drilling

• Website: alliedwells.com
• Ownership type: Private
• Headquarters: Laurel, Maryland, United States (USA)
• Employee distribution: United States (USA) 93%, United Kingdom (UK) 7%
• Founded year: 1994
• Headcount: 51-200
• LinkedIn: allied-well-drilling

Allied Well Drilling, founded in 1994 and based in Laurel, Maryland, is a private company specializing in geothermal drilling. With a workforce of approximately 43 employees, the company focuses on the design, installation, and maintenance of geothermal heating and cooling systems. They primarily serve businesses and organizations in Maryland, Virginia, and Southern Pennsylvania, but their services extend to several other states including New Jersey, Georgia, and New York. Allied Well Drilling is committed to providing sustainable energy solutions, emphasizing efficiency and environmental responsibility. Their portfolio includes notable projects such as the geothermal loop field installation at West Chester University, which is recognized as the largest campus-wide geothermal plant on the East Coast. The company also offers water well drilling and dewatering services, further showcasing their expertise in the drilling industry. Allied has received accolades for their craftsmanship and safety record, highlighting their dedication to quality and worker safety in all operations.

20. Fervo Energy

• Website: fervoenergy.com
• Ownership type: Venture Capital
• Headquarters: Houston, Texas, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Other (Debt), $120.0M, December 2024
• Founded year: 2017
• Headcount: 51-200
• LinkedIn: fervo-energy

Fervo Energy, based in Houston, Texas, is a geothermal energy company established in 2017. The firm is dedicated to developing next-generation geothermal projects that deliver 24/7 carbon-free energy. Fervo Energy targets power buyers and organizations seeking reliable energy solutions, leveraging innovative technologies to enhance geothermal energy production. The company has made significant strides in the industry, including the successful drilling of multiple wells at their Cape Station project, which is set to become one of the most productive enhanced geothermal systems in history. Fervo has secured substantial funding, including a recent $120 million debt financing round, to support its ambitious projects. Their mission is to accelerate the clean energy transition by providing cost-effective and reliable geothermal energy alternatives, addressing the growing demand for sustainable power.

21. Synergy Boreholes Ltd

• Website: synergyboreholes.co.uk
• Ownership type: Family Owned
• Headquarters: Aylesbury, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 100%
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: synergy-boreholes-and-systems-ltd.

Synergy Boreholes Ltd, established in 2006, is a family-owned company based in Aylesbury, England. The firm specializes in borehole drilling services, focusing on geothermal heating and water management solutions. With a team of skilled professionals, Synergy Boreholes has built a reputation for handling complex projects across various sectors, including residential homes, hospitals, schools, and commercial establishments. They drill an impressive average of over 100 kilometers of geothermal boreholes each year, utilizing state-of-the-art equipment tailored for efficiency and minimal disruption. The company is committed to addressing critical issues such as energy security and climate change through sustainable practices. Their services include not only the installation of ground source heat pumps but also comprehensive project management, ensuring that clients receive a full package from initial assessment to post-installation support. Synergy Boreholes is also ISO9001 accredited, reflecting their commitment to quality and customer satisfaction.

22. Reykjavik Geothermal

• Website: rg.is
• Ownership type: Private
• Headquarters: Reykjavík, Reykjavíkurborg, Iceland
• Employee distribution: Iceland 76%, United Kingdom (UK) 24%
• Founded year: 2008
• Headcount: 11-50
• LinkedIn: reykjavik-geothermal

Reykjavik Geothermal, based in Reykjavík, Iceland, is a private geothermal energy developer established in 2008. The company specializes in the sustainable development of geothermal resources aimed at utility-scale power production. With a dedicated team of experts, Reykjavik Geothermal manages the entire geothermal value chain, from exploration and reservoir assessment to project financing and operational management. They are currently involved in significant projects in Ethiopia, including the Corbetti and Tulu Moye geothermal projects, which are among the largest independent power producer (IPP) investments in Africa. The company emphasizes the importance of clean energy solutions, aiming to enhance energy security and reduce reliance on fossil fuels. Their commitment to environmental and social governance is evident in their proactive approach to sustainable development and community engagement.

23. Gnz LLC

• Website: gnzenergy.com
• Ownership type: Private
• Headquarters: Lewes, Delaware, United States (USA)
• Founded year: 2007
• Headcount: 201-500
• LinkedIn: gnz-energy-limited

Gnz LLC, operating under the brand GNZ Energy, is a private renewable energy company based in Lewes, Delaware. Founded in 2007, the company specializes in various forms of renewable energy, with a strong emphasis on geothermal energy solutions. GNZ Energy has undertaken significant projects across several countries, including the Union of the Comoros, Kenya, and Spain, where they are working to develop geothermal power plants. Their projects aim to provide sustainable energy alternatives, thereby reducing dependence on fossil fuels. The company also engages in drilling services, which are crucial for geothermal energy extraction. GNZ Energy collaborates with experienced partners to enhance its operational capabilities and ensure the successful execution of its projects. Their strategic focus on geothermal energy, particularly in regions with high geothermal potential, underscores their commitment to advancing renewable energy initiatives.

24. StratéGéO Conseil

• Website: strategeo-conseil.fr
• Ownership type: Private
• Headquarters: Grigny, Auvergne-Rhône-Alpes, France
• Employee distribution: France 100%
• Founded year: 2016
• Headcount: 11-50
• LinkedIn: strat%c3%a9g%c3%a9o-conseil

StratéGéO Conseil, founded in 2016 and based in Grigny, Auvergne-Rhône-Alpes, France, is a private consulting firm that specializes in geothermal energy and hydrogeology. With a team of approximately 20 employees, the company focuses on providing comprehensive services such as feasibility studies, environmental assessments, and project management. Their expertise is particularly valuable to construction companies and public entities looking to implement sustainable energy solutions and manage water resources effectively. StratéGéO Conseil has positioned itself as a key player in the transition to renewable energy, emphasizing the importance of geothermal energy as a local and efficient solution for heating and cooling buildings. They have worked on various projects, including renovations and new constructions, showcasing their commitment to environmental sustainability and energy efficiency.

25. GeoServ

• Website: geoservsolutions.com
• Ownership type: Private
• Headquarters: Bray, Wicklow, Ireland
• Employee distribution: Ireland 100%
• Founded year: 2003
• Headcount: 1-10
• LinkedIn: geoserv

GeoServ, based in Bray, Wicklow, Ireland, is a private company founded in 2003 that specializes in geothermal energy solutions. With a team of experienced professionals, GeoServ offers consultancy and turnkey project services tailored for both residential and commercial clients. Their expertise covers all aspects of geothermal systems, including design, drilling, installation, and maintenance. Over the years, GeoServ has successfully completed various projects, such as the installation of ground source heat pump systems at prestigious institutions like Trinity College Dublin and Queen’s University Belfast. Their commitment to providing high-quality, tailored geothermal solutions is evident in their extensive project portfolio. GeoServ operates solely in Ireland, ensuring a focused approach to the local geothermal market, and they are well-regarded for their technical proficiency and project management capabilities.

26. Medco Power Indonesia

• Website: medcopower.co.id
• Ownership type: Private
• Headquarters: Jakarta, Jakarta, Indonesia
• Employee distribution: Indonesia 100%
• Founded year: 2004
• Headcount: 1001-5000
• LinkedIn: medco-power-indonesia

PT Medco Power Indonesia, established in 2004, is a private energy company based in Jakarta, Indonesia. It specializes in electricity generation and renewable energy solutions, operating as an Independent Power Producer (IPP). The company manages over 3,100 MW of power across 15 locations in Indonesia, with a significant focus on sustainable energy projects, including geothermal and solar power. Medco Power is committed to providing reliable energy sources and has been involved in various projects aimed at enhancing clean energy development. Their recent activities include exploration for geothermal energy at Blawan Ijen and securing a new geothermal license in North Sumatra, showcasing their active role in the geothermal sector. Additionally, they offer Operation and Maintenance (O&M) services, further solidifying their position in the energy market.

27. Terra Energy

• Website: terra-energy.be
• Ownership type: Private
• Headquarters: Geel, Flanders, Belgium
• Employee distribution: Mexico 82%, Belgium 18%
• Founded year: 2009
• Headcount: 1-10
• LinkedIn: terra-energy-nv

Terra Energy, based in Geel, Flanders, Belgium, is a private consultancy firm founded in 2009. With a small team of around 17 employees, they specialize in renewable thermal energy systems, particularly geothermal energy. Their services include conducting feasibility studies, designing systems, and optimizing HVAC installations for larger buildings. Terra Energy has established itself as a trusted partner for engineering firms and real estate developers seeking sustainable energy solutions. The company has a notable history, originating from the VITO project group focused on underground energy storage, and has accumulated over 20 years of experience in energy extraction and storage technologies. They have introduced Aquifer Thermal Energy Storage (ATES) and Borehole Thermal Energy Storage (BTES) systems to the Belgian market, showcasing their commitment to advancing geothermal energy applications. Their portfolio includes more than 150 projects, demonstrating their active involvement in the geothermal sector.

Geothermal Energy Insights: Key Companies

Company	Headquarter	Size	Founded	Ownership
Dandelion Energy	Mount Kisco, New York, United States (USA)	51-200	2017	Private Equity
Calpine	Houston, Texas, United States (USA)	1001-5000	1984	Corporate
EarthLinked Technologies, Inc.	Lakeland, Florida, United States (USA)	11-50	1980	Private
Dalkia	Chemy, Hauts-De-France, France	10001+	1937	Corporate
Aardyn B.V.	Dordrecht, South Holland, Netherlands	11-50	2011	Corporate
Geointegral	Spain	1-10	2011	Private
Midwest Geothermal	Grand Rapids, Michigan, United States (USA)	11-50	2007	Private
Haliburton Geothermal	United States (USA)	1-10	2007	Private
Comfortworks, Inc.	Oklahoma City, Oklahoma, United States (USA)	11-50	2007	Private
miEnergy	Saskatoon, Saskatchewan, Canada	51-200	2000	Private
Axiclim	Arnage, Pays De La Loire, France	51-200	2000	Private
Géothermique	Eslettes, Normandy, France	11-50	1997	Private
Pansogal Energías Renovables	O Milladoiro, A Coruña, Spain	11-50	2006	Private
Eavor Technologies Inc.	Calgary, Alberta, Canada	51-200	2017	Private Equity
Ranzato Impianti	Padua, Italy	51-200	1986	Corporate
Geo Concept	Budapest, Budapest, Hungary	11-50	2015	Private
Supreme Energy	South Jakarta, Jakarta, Indonesia	201-500	2008	Private
DrillHeat	Maisse, Île-De-France, France	11-50	2022	Private
Allied Well Drilling	Laurel, Maryland, United States (USA)	51-200	1994	Private
Fervo Energy	Houston, Texas, United States (USA)	51-200	2017	Venture Capital
Synergy Boreholes Ltd	Aylesbury, England, United Kingdom (UK)	11-50	2006	Family Owned
Reykjavik Geothermal	Reykjavík, Reykjavíkurborg, Iceland	11-50	2008	Private
Gnz LLC	Lewes, Delaware, United States (USA)	201-500	2007	Private
StratéGéO Conseil	Grigny, Auvergne-Rhône-Alpes, France	11-50	2016	Private
GeoServ	Bray, Wicklow, Ireland	1-10	2003	Private
Medco Power Indonesia	Jakarta, Jakarta, Indonesia	1001-5000	2004	Private
Terra Energy	Geel, Flanders, Belgium	1-10	2009	Private

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