Company lists · Data refreshed November 2026

Top 25 Geothermal energy consulting services worldwide

Name: Geothermal energy consulting services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,060 companies tracked

RevenueBase identified 13,060 company matches for geothermal energy consulting services worldwide as of November 2026 and tracks 154,087 professional contacts across them, including 45,106 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for geothermal energy consulting services 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 consulting services 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

13,060Companies

154,087Contacts tracked

45,106Verified emails

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The 25 largest geothermal energy consulting services worldwide

Ranked by team size

Top 25 of 13,060 company matches for geothermal energy consulting services 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Worley	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	10001+	35,481 contacts →
	Exact match “Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Langan Engineering & Environmental Services	Exact match	Parsippany, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,492 contacts →
	Exact match “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Elsewedy Electric Power Systems Projects	Exact match	Cairo, EgyptHQ recorded Nov 6, 2026	1,001-5,000	1,529 contacts →
	Exact match “An integrated energy solutions -design and build- provider specialized in Power Generation, Water Treatment and Hydropower while currently diversifying our business segments to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	PT Pertamina Drilling Services Indonesia	Exact match	South Jakarta, IndonesiaHQ recorded Nov 6, 2026	1,001-5,000	1,344 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
5	Ormat Technologies, INC	Exact match	Reno, NV, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,328 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
6	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	897 contacts →
	Exact match “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	BGC Engineering INC	Exact match	Vancouver, BC, CanadaHQ recorded Nov 6, 2026	501-1,000	846 contacts →
	Exact match “BGC Engineering is an international consulting firm that provides professional services in applied earth sciences.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	AGR	Exact match	Oslo, NorwayHQ recorded Nov 6, 2026	501-1,000	837 contacts →
	Exact match “AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Integral S.A. Ingenieros Consultores	Exact match	Medellín \| Bogotá \| Lima \| Miami \| Nueva Delhi, ColombiaHQ recorded Nov 6, 2026	1,001-5,000	809 contacts →
	Exact match “Over six decades offering our consultancy services locally and internationally, based on ethical principles and commitments, always through honest, socially responsible actions…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Geotec	Exact match	Ate, BelgiumHQ recorded Nov 6, 2026	1,001-5,000	690 contacts →
	Exact match “Geotec S.A, empresa de perforación perteneciente a Boyles Bros, fue fundado en 1963 posicionándose como una empresa líder en la industria minera peruana.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	ARGAS	Exact match	4204 King Fahd Road, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	594 contacts →
	Exact match “ARGAS, since its inception in 1966, was focused on developing Geological and Geophysical field solutions to further explore the earth’s Natural Resources.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	PT GEO Dipa Energi Persero	Exact match	Jakarta Selatan, IndonesiaHQ recorded Nov 6, 2026	201-500	591 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
13	RRC Companies	Exact match	Round Rock, NM, United StatesHQ recorded Nov 6, 2026	201-500	564 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
14	Revergy	Exact match	Seville, SpainHQ recorded Nov 6, 2026	501-1,000	545 contacts →
	Exact match “REVERGY nace mediante un proyecto de profesionales procedentes de diferentes ámbitos del sector de las energías renovables con el fin de presentar un proyecto marcado por la…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	AKD International	Exact match	PanamaHQ recorded Nov 6, 2026	201-500	513 contacts →
	Exact match “AKD® International es el Aliado Estratégico de toda Empresa de Minería, Energía y/o Petróleo en Latinoamérica que busca un Experto en Perforación con Gran Amor por lo que hace y…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	ERG Engenharia	Exact match	Belo Horizonte, BrazilHQ recorded Nov 6, 2026	201-500	508 contacts →
	Exact match “Empresa mineira, fundada em 1988, a ERG Engenharia mantém vivo o seu ideal de participar da construção de um mundo melhor e sustentável.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Geo-Technology Associates, Inc. GTA	Exact match	Abingdon, OH, United KingdomHQ recorded Nov 6, 2026	501-1,000	503 contacts →
	Exact match “Geo-Technology Associates, Inc.(GTA) proudly celebrates more than 40 years of service, backed by a team of 600+ professionals-including geotechnical engineers, environmental…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	GEO	Exact match	Kgs. Lyngby (copenhagen), DenmarkHQ recorded Nov 6, 2026	201-500	497 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
19	Groupe Coriance	Exact match	Noisy-le-grand, FranceHQ recorded Nov 6, 2026	501-1,000	491 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
20	Groupe ABS	Exact match	Montréal, QC, CanadaHQ recorded Nov 6, 2026	501-1,000	474 contacts →
	Exact match “Fondé en 1993 et établi dans onze régions du Québec et en Ontario.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Constructora Y Perforadora Latina, S.A. DE C.V	Exact match	MexicoHQ recorded Nov 6, 2026	201-500	471 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
22	Equinox Engineering LTD	Exact match	Calgary, TX, CanadaHQ recorded Nov 6, 2026	501-1,000	434 contacts →
	Exact match “Our vision is to lead the industry in quality and create a company where exceptional people thrive.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	International Energy Services Limited	Exact match	Lagos, NigeriaHQ recorded Nov 6, 2026	201-500	428 contacts →
	Exact match “International Energy Services Limited (IESL) – Key Company Information IESL was registered in Nigeria in 1990 as an indigenous energy services company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Neo2	Exact match	Levallois-perret, FranceHQ recorded Nov 6, 2026	501-1,000	408 contacts →
	Exact match “NEO2 is an Engineering Consultancy and Resource Provider active in the Oil & Gas, Water Treatment & Desalination, and Power Generation industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Iplan Gestión Integral	Exact match	Barcelona, SpainHQ recorded Nov 6, 2026	501-1,000	405 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

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 energy consulting services”. 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 13,060 geothermal energy consulting services worldwide

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Geothermal energy consulting services worldwide at a glance

As of Nov 6, 2026

29.3%Verified-email coverage

11.8Average contacts per company

1-10Median size (employees)

1.0%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

8,400

11-50

3,494

51-200

784

201-500

127

501-1,000

1,001-5,000

5,001-10,000

10001+

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 consulting services are linked below.
What qualifies: Company records worldwide whose business descriptions match “geothermal energy consulting services” 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 45,106 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 consulting services by location

69 lists · largest first

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

How many geothermal energy consulting services are there worldwide?

RevenueBase identified 13,060 company matches for geothermal energy consulting services 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?

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

Which country has the most geothermal energy consulting services?

The United States leads with 1,672 companies, followed by Germany (853) and France (710). Every geothermal energy consulting services list by country and city is linked on this page.

Which city has the most geothermal energy consulting services?

Houston leads with 128 company records, followed by Calgary (109) and Madrid (106).

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 45,106 professional contacts with verified work emails tracked across these 13,060 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.