Company lists · Data refreshed November 2026

Top 25 Geothermal energy suppliers worldwide

RevenueBase identified 1,035 company matches for geothermal energy suppliers worldwide as of November 2026 and tracks 22,440 professional contacts across them, including 6,326 with verified work emails. The United States is the largest market and Calgary the largest hub.

This list covers company matches for geothermal energy suppliers 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 suppliers 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
1,035Companies
22,440Contacts tracked
6,326Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest geothermal energy suppliers worldwide

Ranked by team size
Top 25 of 1,035 company matches for geothermal energy suppliers 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact 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
11Exact matchReykjavík, IcelandHQ recorded Nov 6, 2026501-1,000199 contacts →

Exact match

“Orkuveitan (Reykjavík Energy) provides electricity, geothermal water, cold water, carbon storage and a state-of-the-art fibre optic network through four subsidiaries: Veitur, ON…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchMatrei, AustriaHQ recorded Nov 6, 2026501-1,000152 contacts →

Exact match

“WIR SORGEN FÜR IHR WOHLBEFINDEN.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchIcelandHQ recorded Nov 6, 202651-200137 contacts →

Exact match

“ABOUT http://iceland-drilling.com/ Iceland Drilling Ltd is a leading high technical company in the field of high temperature geothermal drilling and has many decades of experience…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20261,001-5,000127 contacts →

Exact match

“Bilgi birikimini yatırıma ve tasarrufa dönüştürmek için çalışmalarını 1990 yılından bu yana sürdüren Doğan Jeotermal Group ülkemizin sahip olduğu jeotermal enerji kaynaklarını…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMount Kisco, NY, United StatesHQ recorded Nov 6, 202651-200124 contacts →

Exact match

“Dandelion Energy is the nation’s leading residential geothermal provider, on a mission to make the world’s most efficient heating and cooling technology accessible to everyone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSouth Jakarta, SingaporeHQ recorded Nov 6, 2026201-500118 contacts →

Exact match

“KS Orka Renewables is one of the most ambitious geothermal developers in the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNigrán, SpainHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“The Ecoforest group of companies was incorporated in Vigo in 1959 by owner and founder José Carlos Alonso Martinez specializing in the energy sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchArmonk, NY, United StatesHQ recorded Nov 6, 202651-200111 contacts →

Exact match

“Brightcore Energy is a leading renewable energy solutions provider serving commercial, institutional, and government clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSalt Lake City, UT, United StatesHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“Powering the future with the Earth’s hidden heat.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchHaliburton, ON, CanadaHQ recorded Nov 6, 2026n/a106 contacts →

Exact match

“Haliburton Geothermal has been established to provide economical and environmental choices pertaining to geothermal in Haliburton Country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchJakarta Timur, IndonesiaHQ recorded Nov 6, 2026501-1,000103 contacts →

Exact match

“We are PT Energia Prima Nusantara, a subsidiary of Astra International Tbk – with shareholders PT United Tractors Tbk.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchTaupo, New ZealandHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“MB Century is New Zealand's only end-to-end world-class renewable energy solutions provider specialising in Drilling, Reservoir & Wireline, Engineering Design, Precision…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchJakarta Selatan, IndonesiaHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“PT PLN Gas & Geothermal is a subsidiary of PT PLN (Persero) which was established on January 28, 2009 to carry out the development of geothermal aspect in Indonesia with a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLogroño, SpainHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“La evolución creciente de las demandas de consumo energético, la escasez de recursos no renovables y su impacto ambiental han supuesto en un breve lapso de tiempo el uso cada vez…”

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

Showing 25 of 1,035 geothermal energy suppliers worldwide

See the full list, filter by size, metro and specialty, and access 6,326 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal energy suppliers worldwide at a glance

As of Nov 6, 2026
28.2%Verified-email coverage
21.7Average contacts per company
1-10Median size (employees)
1.4%Largest-city concentration · Calgary
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
528
11-50
349
51-200
97
201-500
12
501-1,000
18
1,001-5,000
9
5,001-10,000
1
10001+
1

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 suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “geothermal energy suppliers” 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 6,326 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 suppliers by location

9 lists · largest first

Every Geothermal energy suppliers 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 suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal energy suppliers are there worldwide?

RevenueBase identified 1,035 company matches for geothermal energy suppliers 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?

Kengen Kenya tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most geothermal energy suppliers?

The United States leads with 181 companies, followed by Germany (68) and France (64). Every geothermal energy suppliers list by country and city is linked on this page.

Which city has the most geothermal energy suppliers?

Calgary leads with 15 company records, followed by Houston (14) and London (12).

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 6,326 professional contacts with verified work emails tracked across these 1,035 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.