Company lists · Data refreshed November 2026

Top 25 Geothermal system design companies worldwide

RevenueBase identified 2,760 company matches for geothermal system design companies worldwide as of November 2026 and tracks 20,535 professional contacts across them, including 5,661 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers company matches for geothermal system design companies 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 system design companies 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
2,760Companies
20,535Contacts tracked
5,661Verified emails
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The 25 largest geothermal system design companies worldwide

Ranked by team size
Top 25 of 2,760 company matches for geothermal system design companies 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact matchPasig, PhilippinesHQ recorded Nov 6, 2026501-1,000279 contacts →

Exact match

“Thermaprime Drilling Corporation Geothermal, Oil & Gas Drilling BASIC SERVICES Well Construction Management • Drilling of geothermal wells • Drilling of onshore oil and gas wells…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchFort Wayne, IN, United StatesHQ recorded Nov 6, 2026201-500229 contacts →

Exact match

“WaterFurnace International, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchKhopoli, IndiaHQ recorded Nov 6, 202651-200214 contacts →

Exact match

“Exact Sun India specializes in delivering comprehensive mechanical, structural, and electrical design services, along with full-service installation solutions for both industrial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchGebze, TürkiyeHQ recorded Nov 6, 2026201-500164 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact 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
11Exact 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
12Exact 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
13Exact 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
14Exact 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
15Exact matchBangalore, IndiaHQ recorded Nov 6, 202651-200121 contacts →

Exact match

“Nuetech commands a rich heritage in the non-conventional energy industry with its origin in the very nascent days of solar thermal business in India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact 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
18Exact matchAthens, GreeceHQ recorded Nov 6, 2026201-500107 contacts →

Exact match

“SYCHEM S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchTulsa, CA, United StatesHQ recorded Nov 6, 2026201-500107 contacts →

Exact match

“Hayden is a technology and engineering company that builds critical infrastructure for compute, energy and thermal performance.”

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 matchSão Paulo, BrazilHQ recorded Nov 6, 2026201-500100 contacts →

Exact match

“Oferecemos soluções completas que abrangem a concepção, implementação, investimento, operação e manutenção nas áreas de geração de energia elétrica e térmica e eficiência…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact 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
23Exact matchPescara, ItalyHQ recorded Nov 6, 202611-5080 contacts →

Exact match

“servizi di progettazione integrata, risparmio energetico, analisi energetiche finalizzate all'energy saving impianti termici impianti elettrici energie alternative.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBratislava, SlovakiaHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“We are Breaking Barriers in Geothermal At GADrilling, we are changing what is possible in deep drilling.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGrindavík, IcelandHQ recorded Nov 6, 202651-20077 contacts →

Exact match

“HS Orka is the largest privately owned power company in Iceland.”

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

Showing 25 of 2,760 geothermal system design companies worldwide

See the full list, filter by size, metro and specialty, and access 5,661 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal system design companies worldwide at a glance

As of Nov 6, 2026
27.6%Verified-email coverage
7.4Average contacts per company
1-10Median size (employees)
0.5%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,493
11-50
973
51-200
202
201-500
27
501-1,000
4
1,001-5,000
3

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 system design companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “geothermal system design companies” 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 5,661 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 system design companies by location

14 lists · largest first

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

How many geothermal system design companies are there worldwide?

RevenueBase identified 2,760 company matches for geothermal system design companies 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?

Ormat Technologies, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most geothermal system design companies?

The United States leads with 428 companies, followed by Italy (309) and France (177). Every geothermal system design companies list by country and city is linked on this page.

Which city has the most geothermal system design companies?

Madrid leads with 15 company records, followed by Rome (15) and Berlin (14).

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 5,661 professional contacts with verified work emails tracked across these 2,760 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.