Company lists · Data refreshed September 2026
Top 25 Geothermal power plant operators worldwide
RevenueBase identified 280 company matches for geothermal power plant operators worldwide as of September 2026 and tracks 18,263 professional contacts across them, including 5,070 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers company matches for geothermal power plant operators 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 September 20, 2026. Country and city lists for geothermal power plant operators 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.
The 25 largest geothermal power plant operators worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,700 contacts → | ||||
Exact match “GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 2,112 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 1,998 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 1,719 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 1,281 contacts → | ||||
Exact match “With over five decades of experience, Ormat Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 501 contacts → | ||||
Exact match “PT Geo Dipa Energi (Persero) is a State-Owned Company specializing in Geothermal Energy” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 440 contacts → | ||||
Exact match “Euroasiatic (EA) is a Heat & Power Generation Solutions Provider.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 321 contacts → | ||||
Exact match “NEM is a global player in the power generation sector, committed to making a tangible impact on creating a better world.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 271 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 212 contacts → | ||||
Exact match “Wir sind ein moderner und regional verwurzelter Arbeitgeber in einem spannenden und anspruchsvollen Umfeld.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 208 contacts → | ||||
Exact match “Toshiba America Energy Systems Corporation (TAES), headquartered in Milwaukee, Wisconsin, with major manufacturing and services, provides turbine/generator equipment and services…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 149 contacts → | ||||
Exact match “EGESIM, founded in 1994, is an energy solutions company focused on industrial electrical and automation systems and EPC (engineering, procurement and construction) of geothermal…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 144 contacts → | ||||
Exact match “Somos una empresa fundada en el año 1975, especializada en el área de generación eléctrica.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 133 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 124 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 99 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 92 contacts → | ||||
Exact match “Somos una compañía formada por profesionales altamente calificados, fundada en el año 2010 con más de 10 años de experiencia en el mercado, dedicados a la Fabricación, Diseño…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 80 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 77 contacts → | ||||
Exact match “Con fecha 13 de diciembre de 2005 se constituyó Termoeléctrica José de San Martín S.A.(TSM) con el objeto de gerenciar la construcción de la obra tipo “Llave en Mano”…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 77 contacts → | ||||
Exact match “HS Orka is the largest privately owned power company in Iceland.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 46 contacts → | ||||
Exact match “CFG Services est une société de services et d’ingénierie, filiale à 100% du BRGM, spécialisée en géothermie qui dès le début des années 80 a été pionnière dans le développement…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 34 contacts → | ||||
Exact match “XGS Energy is a geothermal energy company founded and headquartered in Palo Alto, CA.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 28 contacts → | ||||
Exact match “GMK Energy is a world leader consulting, engineering and project development company which gives engineering, project design, consultancy, owner's engineering and integrated…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 24 contacts → | ||||
Exact match “Yeager Energy is an integrated geothermal energy company based in The Netherlands.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 24 contacts → | ||||
Exact match “KTS Engineering offers innovative, reliable and efficient solutions to generate the required power for various consumers - from industrial plants to entire neighbourhoods.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “geothermal power plant operators”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 280 geothermal power plant operators worldwide
See the full list, filter by size, metro and specialty, and access 5,070 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Geothermal power plant operators worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 power plant operators are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “geothermal power plant operators” 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 5,070 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 September 20, 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 power plant operators by location
1 lists · largest firstEvery Geothermal power plant operators 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 power plant operators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many geothermal power plant operators are there worldwide?
RevenueBase identified 280 company matches for geothermal power plant operators worldwide as of September 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?
Fieldcore tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most geothermal power plant operators?
The United States leads with 60 companies. Every geothermal power plant operators list by country and city is linked on this page.
Which city has the most geothermal power plant operators?
Houston leads with 11 company records, followed by Ankara (4) and Calgary (4).
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 5,070 professional contacts with verified work emails tracked across these 280 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 September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 280 geothermal power plant operators worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 geothermal power plant operators worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 280 matching company records for geothermal power plant operators worldwide, with 18,263 tracked contacts and 5,070 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 geothermal power plant operators worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Fieldcorefieldcore.comHQ: Atlanta, GA, United StatesReported employees: 10001+ | Atlanta, GA, United States | 10001+ | Exact match | 3,700 contacts → |
“GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Calpinecalpine.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,112 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Kengen Kenyakengen.co.ke HQ: Nairobi, KenyaReported employees: 1,001-5,000 | Nairobi, Kenya | 1,001-5,000 | Exact match | 1,998 contacts → |
“Kenya Electricity Generating Company PLC (KenGen) is the leading electric power generating company in East Africa.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Energy Development Corporationenergy.com.phHQ: Pasig City, PhilippinesReported employees: 1,001-5,000 | Pasig City, Philippines | 1,001-5,000 | Exact match | 1,719 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Ormat Technologies, INCormat.comHQ: Reno, NV, United StatesReported employees: 1,001-5,000 | Reno, NV, United States | 1,001-5,000 | Exact match | 1,281 contacts → |
“With over five decades of experience, Ormat Technologies, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | PT GEO Dipa Energi Perserogeodipa.co.id HQ: Jakarta Selatan, IndonesiaReported employees: 201-500 | Jakarta Selatan, Indonesia | 201-500 | Exact match | 501 contacts → |
“PT Geo Dipa Energi (Persero) is a State-Owned Company specializing in Geothermal Energy” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Euroasiaticeuroasiatic.com HQ: Bumi Serpong Damai City Tangerang Selatan, IndonesiaReported employees: 201-500 | Bumi Serpong Damai City Tangerang Selatan, Indonesia | 201-500 | Exact match | 440 contacts → |
“Euroasiatic (EA) is a Heat & Power Generation Solutions Provider.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | NEM Energy Groupnem-energy.com HQ: Zoeterwoude, NetherlandsReported employees: 201-500 | Zoeterwoude, Netherlands | 201-500 | Exact match | 321 contacts → |
“NEM is a global player in the power generation sector, committed to making a tangible impact on creating a better world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Supreme Energysupreme-energy.com HQ: Jakarta Selatan, IndonesiaReported employees: 201-500 | Jakarta Selatan, Indonesia | 201-500 | Exact match | 271 contacts → |
“Supreme Energy Group of Companies (SEML/SERD/SERB), a growing Multinational Energy Companies with its core business on renewable energy Geothermal Power Plant.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Leibstadt, SwitzerlandReported employees: 201-500 | Leibstadt, Switzerland | 201-500 | Exact match | 212 contacts → |
“Wir sind ein moderner und regional verwurzelter Arbeitgeber in einem spannenden und anspruchsvollen Umfeld.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Toshiba America Energy Systemstoshiba.comHQ: West Allis, WI, United StatesReported employees: 201-500 | West Allis, WI, United States | 201-500 | Exact match | 208 contacts → |
“Toshiba America Energy Systems Corporation (TAES), headquartered in Milwaukee, Wisconsin, with major manufacturing and services, provides turbine/generator equipment and services…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Egesim Groupegesim.comHQ: Gebze, TürkiyeReported employees: 201-500 | Gebze, Türkiye | 201-500 | Exact match | 149 contacts → |
“EGESIM, founded in 1994, is an energy solutions company focused on industrial electrical and automation systems and EPC (engineering, procurement and construction) of geothermal…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Inserven C.Ainserven.com HQ: Caracas, VenezuelaReported employees: 201-500 | Caracas, Venezuela | 201-500 | Exact match | 144 contacts → |
“Somos una empresa fundada en el año 1975, especializada en el área de generación eléctrica.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | AP Renewables Inc. Aboitizpower Geothermal Unitaboitizpower.com HQ: United StatesReported employees: 201-500 | United States | 201-500 | Exact match | 133 contacts → |
“Aboitiz Power Corporation (AboitizPower, AP) is a leader in the Philippine Electric Power Industry with a portfolio of assets located across the country.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Doğan Jeotermal Groupdoganjeotermal.com.tr HQ: Ankara, TürkiyeReported employees: 1,001-5,000 | Ankara, Türkiye | 1,001-5,000 | Exact match | 124 contacts → |
“Bilgi birikimini yatırıma ve tasarrufa dönüştürmek için çalışmalarını 1990 yılından bu yana sürdüren Doğan Jeotermal Group ülkemizin sahip olduğu jeotermal enerji kaynaklarını…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | PT Energia Prima Nusantara Astra Groupepnusantara.com HQ: Jakarta Timur, IndonesiaReported employees: 501-1,000 | Jakarta Timur, Indonesia | 501-1,000 | Exact match | 99 contacts → |
“We are PT Energia Prima Nusantara, a subsidiary of Astra International Tbk – with shareholders PT United Tractors Tbk.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  RK Power Corprkpowergenerator.comHQ: San Juan, United StatesReported employees: 51-200 | San Juan, United States | 51-200 | Exact match | 92 contacts → |
“Somos una compañía formada por profesionales altamente calificados, fundada en el año 2010 con más de 10 años de experiencia en el mercado, dedicados a la Fabricación, Diseño…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | PT PLN Energi GASplnenergigas.co.id HQ: Jakarta Selatan, IndonesiaReported employees: 51-200 | Jakarta Selatan, Indonesia | 51-200 | Exact match | 80 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Termoeléctrica José DE SAN Martín S.Atsm.com.arHQ: Retiro, ArgentinaReported employees: 51-200 | Retiro, Argentina | 51-200 | Exact match | 77 contacts → |
“Con fecha 13 de diciembre de 2005 se constituyó Termoeléctrica José de San Martín S.A.(TSM) con el objeto de gerenciar la construcción de la obra tipo “Llave en Mano”…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HS Orkahsorka.is HQ: Grindavík, IcelandReported employees: 51-200 | Grindavík, Iceland | 51-200 | Exact match | 77 contacts → |
“HS Orka is the largest privately owned power company in Iceland.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | CFG Geothermalcfg-geo.fr HQ: Orleans, FranceReported employees: 11-50 | Orleans, France | 11-50 | Exact match | 46 contacts → |
“CFG Services est une société de services et d’ingénierie, filiale à 100% du BRGM, spécialisée en géothermie qui dès le début des années 80 a été pionnière dans le développement…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | XGS Energyxgsenergy.com HQ: Palo Alto, CA, United StatesReported employees: 11-50 | Palo Alto, CA, United States | 11-50 | Exact match | 34 contacts → |
“XGS Energy is a geothermal energy company founded and headquartered in Palo Alto, CA.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | GMK Energygmkenerji.com.tr HQ: Bayraklı, TürkiyeReported employees: 11-50 | Bayraklı, Türkiye | 11-50 | Exact match | 28 contacts → |
“GMK Energy is a world leader consulting, engineering and project development company which gives engineering, project design, consultancy, owner's engineering and integrated…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Yeager Energyyeager-energy.com HQ: Leiden, NetherlandsReported employees: 11-50 | Leiden, Netherlands | 11-50 | Exact match | 24 contacts → |
“Yeager Energy is an integrated geothermal energy company based in The Netherlands.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  KTS Engineeringkts-eng.comHQ: Pecherskyi District, UkraineReported employees: 51-200 | Pecherskyi District, Ukraine | 51-200 | Exact match | 24 contacts → |
“KTS Engineering offers innovative, reliable and efficient solutions to generate the required power for various consumers - from industrial plants to entire neighbourhoods.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 280 company matches
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Geothermal power plant operators: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
280 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 280 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Geothermal power plant operators by location
1 lists · largest firstEvery Geothermal power plant operators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for geothermal power plant operators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many geothermal power plant operators did RevenueBase find worldwide?
The saved snapshot records 280 matching company records, 18,263 tracked contacts and 5,070 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 geothermal power plant operators worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/geothermal-power-plant-operators.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 geothermal power plant operators worldwide
RevenueBase records 280 matching company records for geothermal power plant operators worldwide, with 18,263 tracked contacts and 5,070 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 geothermal power plant operators worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Fieldcorefieldcore.com HQ: Atlanta, GA, United StatesReported employees: 10001+ | Atlanta, GA, United States | 10001+ | Exact match | 3,700 contacts → |
“GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Calpinecalpine.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 2,112 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Kengen Kenyakengen.co.ke HQ: Nairobi, KenyaReported employees: 1,001-5,000 | Nairobi, Kenya | 1,001-5,000 | Exact match | 1,998 contacts → |
“Kenya Electricity Generating Company PLC (KenGen) is the leading electric power generating company in East Africa.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Energy Development Corporationenergy.com.ph HQ: Pasig City, PhilippinesReported employees: 1,001-5,000 | Pasig City, Philippines | 1,001-5,000 | Exact match | 1,719 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Ormat Technologies, INCormat.com HQ: Reno, NV, United StatesReported employees: 1,001-5,000 | Reno, NV, United States | 1,001-5,000 | Exact match | 1,281 contacts → |
“With over five decades of experience, Ormat Technologies, Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | PT GEO Dipa Energi Perserogeodipa.co.id HQ: Jakarta Selatan, IndonesiaReported employees: 201-500 | Jakarta Selatan, Indonesia | 201-500 | Exact match | 501 contacts → |
“PT Geo Dipa Energi (Persero) is a State-Owned Company specializing in Geothermal Energy” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Euroasiaticeuroasiatic.com HQ: Bumi Serpong Damai City Tangerang Selatan, IndonesiaReported employees: 201-500 | Bumi Serpong Damai City Tangerang Selatan, Indonesia | 201-500 | Exact match | 440 contacts → |
“Euroasiatic (EA) is a Heat & Power Generation Solutions Provider.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | NEM Energy Groupnem-energy.com HQ: Zoeterwoude, NetherlandsReported employees: 201-500 | Zoeterwoude, Netherlands | 201-500 | Exact match | 321 contacts → |
“NEM is a global player in the power generation sector, committed to making a tangible impact on creating a better world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Supreme Energysupreme-energy.com HQ: Jakarta Selatan, IndonesiaReported employees: 201-500 | Jakarta Selatan, Indonesia | 201-500 | Exact match | 271 contacts → |
“Supreme Energy Group of Companies (SEML/SERD/SERB), a growing Multinational Energy Companies with its core business on renewable energy Geothermal Power Plant.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Leibstadt, SwitzerlandReported employees: 201-500 | Leibstadt, Switzerland | 201-500 | Exact match | 212 contacts → |
“Wir sind ein moderner und regional verwurzelter Arbeitgeber in einem spannenden und anspruchsvollen Umfeld.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Toshiba America Energy Systemstoshiba.com HQ: West Allis, WI, United StatesReported employees: 201-500 | West Allis, WI, United States | 201-500 | Exact match | 208 contacts → |
“Toshiba America Energy Systems Corporation (TAES), headquartered in Milwaukee, Wisconsin, with major manufacturing and services, provides turbine/generator equipment and services…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Egesim Groupegesim.com HQ: Gebze, TürkiyeReported employees: 201-500 | Gebze, Türkiye | 201-500 | Exact match | 149 contacts → |
“EGESIM, founded in 1994, is an energy solutions company focused on industrial electrical and automation systems and EPC (engineering, procurement and construction) of geothermal…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Inserven C.Ainserven.com HQ: Caracas, VenezuelaReported employees: 201-500 | Caracas, Venezuela | 201-500 | Exact match | 144 contacts → |
“Somos una empresa fundada en el año 1975, especializada en el área de generación eléctrica.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | AP Renewables Inc. Aboitizpower Geothermal Unitaboitizpower.com HQ: United StatesReported employees: 201-500 | United States | 201-500 | Exact match | 133 contacts → |
“Aboitiz Power Corporation (AboitizPower, AP) is a leader in the Philippine Electric Power Industry with a portfolio of assets located across the country.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Doğan Jeotermal Groupdoganjeotermal.com.tr HQ: Ankara, TürkiyeReported employees: 1,001-5,000 | Ankara, Türkiye | 1,001-5,000 | Exact match | 124 contacts → |
“Bilgi birikimini yatırıma ve tasarrufa dönüştürmek için çalışmalarını 1990 yılından bu yana sürdüren Doğan Jeotermal Group ülkemizin sahip olduğu jeotermal enerji kaynaklarını…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | PT Energia Prima Nusantara Astra Groupepnusantara.com HQ: Jakarta Timur, IndonesiaReported employees: 501-1,000 | Jakarta Timur, Indonesia | 501-1,000 | Exact match | 99 contacts → |
“We are PT Energia Prima Nusantara, a subsidiary of Astra International Tbk – with shareholders PT United Tractors Tbk.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | RK Power Corprkpowergenerator.com HQ: San Juan, United StatesReported employees: 51-200 | San Juan, United States | 51-200 | Exact match | 92 contacts → |
“Somos una compañía formada por profesionales altamente calificados, fundada en el año 2010 con más de 10 años de experiencia en el mercado, dedicados a la Fabricación, Diseño…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | PT PLN Energi GASplnenergigas.co.id HQ: Jakarta Selatan, IndonesiaReported employees: 51-200 | Jakarta Selatan, Indonesia | 51-200 | Exact match | 80 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Termoeléctrica José DE SAN Martín S.Atsm.com.ar HQ: Retiro, ArgentinaReported employees: 51-200 | Retiro, Argentina | 51-200 | Exact match | 77 contacts → |
“Con fecha 13 de diciembre de 2005 se constituyó Termoeléctrica José de San Martín S.A.(TSM) con el objeto de gerenciar la construcción de la obra tipo “Llave en Mano”…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HS Orkahsorka.is HQ: Grindavík, IcelandReported employees: 51-200 | Grindavík, Iceland | 51-200 | Exact match | 77 contacts → |
“HS Orka is the largest privately owned power company in Iceland.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | CFG Geothermalcfg-geo.fr HQ: Orleans, FranceReported employees: 11-50 | Orleans, France | 11-50 | Exact match | 46 contacts → |
“CFG Services est une société de services et d’ingénierie, filiale à 100% du BRGM, spécialisée en géothermie qui dès le début des années 80 a été pionnière dans le développement…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | XGS Energyxgsenergy.com HQ: Palo Alto, CA, United StatesReported employees: 11-50 | Palo Alto, CA, United States | 11-50 | Exact match | 34 contacts → |
“XGS Energy is a geothermal energy company founded and headquartered in Palo Alto, CA.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | GMK Energygmkenerji.com.tr HQ: Bayraklı, TürkiyeReported employees: 11-50 | Bayraklı, Türkiye | 11-50 | Exact match | 28 contacts → |
“GMK Energy is a world leader consulting, engineering and project development company which gives engineering, project design, consultancy, owner's engineering and integrated…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Yeager Energyyeager-energy.com HQ: Leiden, NetherlandsReported employees: 11-50 | Leiden, Netherlands | 11-50 | Exact match | 24 contacts → |
“Yeager Energy is an integrated geothermal energy company based in The Netherlands.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | KTS Engineeringkts-eng.com HQ: Pecherskyi District, UkraineReported employees: 51-200 | Pecherskyi District, Ukraine | 51-200 | Exact match | 24 contacts → |
“KTS Engineering offers innovative, reliable and efficient solutions to generate the required power for various consumers - from industrial plants to entire neighbourhoods.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Geothermal power plant operators: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
280 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 280 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Geothermal power plant operators by location
1 lists · largest firstEvery Geothermal power plant operators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for geothermal power plant operators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many geothermal power plant operators did RevenueBase find worldwide?
The saved snapshot records 280 matching company records, 18,263 tracked contacts and 5,070 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 geothermal power plant operators worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/geothermal-power-plant-operators.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗