Company lists · Data refreshed November 2026

Top 25 Geothermal energy developers worldwide

RevenueBase identified 1,447 company matches for geothermal energy developers worldwide as of November 2026 and tracks 41,844 professional contacts across them, including 12,762 with verified work emails. The United States is the largest market and Calgary the largest hub.

This list covers company matches for geothermal energy developers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for geothermal energy developers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,447Companies
41,844Contacts tracked
12,762Verified emails
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The 25 largest geothermal energy developers worldwide

Ranked by team size
Top 25 of 1,447 company matches for geothermal energy developers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRome, ItalyHQ recorded Nov 6, 20265,001-10,0005,313 contacts →

Exact match

“We are the Enel Group company dedicated to the development and management of renewable energy generation worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchOslo, NorwayHQ recorded Nov 6, 20265,001-10,0004,251 contacts →

Exact match

“Statkraft is a leading company in hydropower internationally and Europe’s largest generator of renewable energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNairobi, KenyaHQ recorded Nov 6, 20261,001-5,0002,218 contacts →

Exact match

“Kenya Electricity Generating Company PLC (KenGen) is the leading electric power generating company in East Africa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,0002,199 contacts →

Exact match

“A business unit of Constellation (NASDAQ: CEG), Calpine Corporation is America’s largest generator of electricity from natural gas and geothermal resources with operations in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPasig City, PhilippinesHQ recorded Nov 6, 20261,001-5,0001,924 contacts →

Exact match

“The Energy Development Corporation (EDC) is a pioneer in generating 100% clean, renewable, and reliable power as an electricity supplier in the Philippines for over 40 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGambir, IndonesiaHQ recorded Nov 6, 2026201-5001,423 contacts →

Exact match

“Indonesia Geothermal Company”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchReno, NV, United StatesHQ recorded Nov 6, 20261,001-5,0001,328 contacts →

Exact match

“Clean, reliable energy solutions provided by geothermal power, recovered energy, and energy storage solutions are our expertise, commitment, and focus.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchJakarta Selatan, IndonesiaHQ recorded Nov 6, 2026201-500591 contacts →

Exact match

“PT Geo Dipa Energi (Persero) is a State-Owned Company specializing in Geothermal Energy”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchNoisy-le-grand, FranceHQ recorded Nov 6, 2026501-1,000491 contacts →

Exact match

“Pour une énergie propre et mieux utilisée Notre mission : fournir des solutions énergétiques performantes et économiques, tout en minimisant l'impact environnemental.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMexicoHQ recorded Nov 6, 2026201-500471 contacts →

Exact match

“Constructora y Perforadora LATINA (“LATINA”) Es una empresa privada con mas de 60 años de experiencia en el sector de energía y actualmente es la principal empresa en…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGaziantep, TürkiyeHQ recorded Nov 6, 2026501-1,000361 contacts →

Exact match

“1997 yılında başladığı enerji yatırımları ile grup şirketlerinin ihtiyacı olan enerjiyi üreterek enerji sektörüne ilk adımlarını atan Sanko Holding sahip olduğu yenilenebilir…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchValhalla, NY, United StatesHQ recorded Nov 6, 2026201-500305 contacts →

Exact match

“Who We Are Con Edison Development develops, owns and operates renewable and energy infrastructure projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchJakarta Selatan, IndonesiaHQ recorded Nov 6, 2026201-500303 contacts →

Exact match

“Supreme Energy Group of Companies (SEML/SERD/SERB), a growing Multinational Energy Companies with its core business on renewable energy Geothermal Power Plant.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchFuveau, FranceHQ recorded Nov 6, 2026201-500286 contacts →

Exact match

“Fondé en 2008, au cœur de la région PACA, Tenergie est un producteur indépendant d’énergies renouvelables : nos 500 centrales solaires et éoliennes ont produit plus de 250 GWh en…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchHouston, CA, United StatesHQ recorded Nov 6, 202651-200285 contacts →

Exact match

“Fervo Energy provides 24/7 carbon-free energy through the development of next-generation geothermal power.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDes Moines, CA, United StatesHQ recorded Nov 6, 2026501-1,000242 contacts →

Exact match

“BHE Renewables delivers sustainable energy solutions for customers and communities by producing renewable energy for both the wholesale market and for customers under long-term…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202651-200210 contacts →

Exact match

“Fiba Renewables was established in 2007 as a subsidiary of Fiba Group, with the aim of developing renewable energy projects and establishing production facilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchUnited StatesHQ recorded Nov 6, 2026201-500206 contacts →

Exact match

“Marriott Drilling Group is the UK’s only remaining truly independent land Drilling Specialist, trusted for over 75 years to deliver safe, efficient and technically robust drilling…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMakati City, PhilippinesHQ recorded Nov 6, 2026201-500172 contacts →

Exact match

“The Philippine Geothermal Production Company, Inc.(PGPC) is a 100% Filipino corporation operating the Tiwi and Mak-Ban geothermal steam fields and is committed to operating in a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSilver Spring, MD, United StatesHQ recorded Nov 6, 202651-200169 contacts →

Exact match

“Competitive Power Ventures (CPV) has 25 years of unprecedented success in the development and operation of highly efficient and low emitting electric generation and renewable…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchShepton Mallet, United KingdomHQ recorded Nov 6, 202651-200169 contacts →

Exact match

“Clean energy, powered with purpose.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchParis, FranceHQ recorded Nov 6, 202651-200168 contacts →

Exact match

“Depuis 2004, JP Energie Environnement développe, finance, construit et exploite des unités de production d’électricité d’origine renouvelables dans tous les domaines d’activités …”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchVoorburg, NetherlandsHQ recorded Nov 6, 202651-200158 contacts →

Exact match

“Eteck levert duurzame energie in de vorm van koude en warmte.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchUnited StatesHQ recorded Nov 6, 2026201-500158 contacts →

Exact match

“Aboitiz Power Corporation (AboitizPower, AP) is a leader in the Philippine Electric Power Industry with a portfolio of assets located across the country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAhmedabad, IndiaHQ recorded Nov 6, 2026201-500155 contacts →

Exact match

“Opera Energy (Opera Group) is a leading renewable energy developer committed to providing customized solutions for independent power producers and commercial and industrial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,447 geothermal energy developers worldwide

See the full list, filter by size, metro and specialty, and access 12,762 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal energy developers worldwide at a glance

As of Nov 6, 2026
30.5%Verified-email coverage
28.9Average contacts per company
11-50Median size (employees)
1.3%Largest-city concentration · Calgary
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
696
11-50
497
51-200
169
201-500
29
501-1,000
22
1,001-5,000
17
5,001-10,000
3
10001+
2

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for geothermal energy developers are linked below.
What qualifies
Company records worldwide whose business descriptions match “geothermal energy developers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 12,762 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Geothermal energy developers by location

11 lists · largest first

Every Geothermal energy developers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geothermal energy developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal energy developers are there worldwide?

RevenueBase identified 1,447 company matches for geothermal energy developers worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Enel Green Power tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most geothermal energy developers?

The United States leads with 229 companies, followed by Germany (76) and France (69). Every geothermal energy developers list by country and city is linked on this page.

Which city has the most geothermal energy developers?

Calgary leads with 19 company records, followed by London (19) and Houston (18).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 12,762 professional contacts with verified work emails tracked across these 1,447 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.