Company lists · Data refreshed November 2026

Top 25 Geothermal energy engineers worldwide

RevenueBase identified 2,707 company matches for geothermal energy engineers worldwide as of November 2026 and tracks 35,865 professional contacts across them, including 9,568 with verified work emails. The United States is the largest market and Ankara the largest hub.

This list covers company matches for geothermal energy engineers 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 engineers 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
2,707Companies
35,865Contacts tracked
9,568Verified emails
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The 25 largest geothermal energy engineers worldwide

Ranked by team size
Top 25 of 2,707 company matches for geothermal energy engineers 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 matchKennesaw, PA, United StatesHQ recorded Nov 6, 20261,001-5,0002,022 contacts →

Exact match

“ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSouth Jakarta, IndonesiaHQ recorded Nov 6, 20261,001-5,0001,344 contacts →

Exact match

“PT Pertamina Drilling Services Indonesia (Pertamina Drilling) was established on June 13th, 2008.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 202610001+1,159 contacts →

Exact match

“Electrical Power Construction Co, Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchOeiras, PortugalHQ recorded Nov 6, 20261,001-5,000772 contacts →

Exact match

“Engineering Service Provider / Contractor on Telecom, IT, GIS, Electricity, Renewable Energy, Energy Generation, Hydraulic Facilities, Gas, Pipeline, Industrial installations…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchThane, IndiaHQ recorded Nov 6, 2026501-1,000731 contacts →

Exact match

“M/s VIKRAN Engineering Ltd is a reputed and established engineering company specializing in providing comprehensive solutions in the fields of renewable energy, engineering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchValencia, SpainHQ recorded Nov 6, 2026501-1,000579 contacts →

Exact match

“GRUPOTEC - Empresa multidisciplinar de ingeniería y arquitectura y líder en el sector de la energía fotovoltaica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRound Rock, NM, United StatesHQ recorded Nov 6, 2026201-500564 contacts →

Exact match

“RRC is a top-tier designer of utility-scale wind, solar, energy storage, data center, and oil & gas projects in the US and select international markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKgs. Lyngby (copenhagen), DenmarkHQ recorded Nov 6, 2026201-500497 contacts →

Exact match

“Founded in 1943, Geo is a market leading engineering consultancy company and contractor, specialised within the fields of geotechnical and environmental engineering (geoteknik og…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchFortaleza, BrazilHQ recorded Nov 6, 20261,001-5,000425 contacts →

Exact match

“Somos uma empresa de engenharia, especializada em infraestrutura para o setor de energia renovável, tendo executado diversos parques eólicos e solares de médio e grande porte.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBarcelona, SpainHQ recorded Nov 6, 2026501-1,000405 contacts →

Exact match

“Iplan is a company related to the engineering services of projects developed mainly in the energy sector, civil works, renewable energies and environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchToruń, PolandHQ recorded Nov 6, 20261,001-5,000347 contacts →

Exact match

“We deliver innovative geophysical, geological and geotechnical solutions for energy sector as well as renewable energy in Poland and worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWillow Grove, MA, United StatesHQ recorded Nov 6, 20261,001-5,000305 contacts →

Exact match

“Asplundh Engineering Services leverages more than 100 years of experience to provide a superior, single-point solution for engineering, design and testing services to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact 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
15Exact matchGoiânia, BrazilHQ recorded Nov 6, 20261,001-5,000285 contacts →

Exact match

“Fundada em 1992, a CEL ENERGIA é uma empresa brasileira especializada em soluções de engenharia elétrica, infraestrutura e construção, reconhecida pela excelência técnica…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAustin, TX, United StatesHQ recorded Nov 6, 2026201-500282 contacts →

Exact match

“The world runs on power.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500280 contacts →

Exact match

“SÓLIDA, a Bureau Veritas Company, is an independent company founded in 2007 that provides high added-value engineering and consulting services within the renewable energy sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact 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
19Exact matchRueil-malmaison, FranceHQ recorded Nov 6, 202651-200230 contacts →

Exact match

“Beicip-Franlab is a leading Energy Consultancy and Software Editor created in the 1960's with recognized worldwide hands-on expertise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBurlington, ON, CanadaHQ recorded Nov 6, 2026201-500218 contacts →

Exact match

“TWD is a leading global engineering firm focusing on traditional and transitional energy projects and innovative infrastructure projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact 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
22Exact matchGoiânia, BrazilHQ recorded Nov 6, 2026501-1,000195 contacts →

Exact match

“Fundada em 2006, em Goiânia-GO, a Enerwatt Engenharia iniciou suas atividades atuando na área de projetos e consultoria energética.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchOakland, TX, United StatesHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“Revamp is the premier engineering firm for large-scale renewable energy projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNeuquén, ArgentinaHQ recorded Nov 6, 2026201-500183 contacts →

Exact match

“Ciar es una empresa líder en servicios de ingeniería que forma parte del grupo Clusterciar.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSingaporeHQ recorded Nov 6, 2026201-500183 contacts →

Exact match

“Sunkonnect is a leading energy transition and renewable energy consulting company delivering end-to-end engineering, quality assurance, project management consultancy, and…”

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

Showing 25 of 2,707 geothermal energy engineers worldwide

See the full list, filter by size, metro and specialty, and access 9,568 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal energy engineers worldwide at a glance

As of Nov 6, 2026
26.7%Verified-email coverage
13.2Average contacts per company
1-10Median size (employees)
1.2%Largest-city concentration · Ankara
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,447
11-50
925
51-200
226
201-500
50
501-1,000
18
1,001-5,000
12
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 engineers are linked below.
What qualifies
Company records worldwide whose business descriptions match “geothermal energy engineers” 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 9,568 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 engineers by location

18 lists · largest first

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

Countries

Cities

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 engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal energy engineers are there worldwide?

RevenueBase identified 2,707 company matches for geothermal energy engineers 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?

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

Which country has the most geothermal energy engineers?

The United States leads with 289 companies, followed by Spain (189) and Italy (188). Every geothermal energy engineers list by country and city is linked on this page.

Which city has the most geothermal energy engineers?

Ankara leads with 33 company records, followed by Calgary (27) and Madrid (26).

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 9,568 professional contacts with verified work emails tracked across these 2,707 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.