Company lists · Data refreshed October 2026

Top 25 Energy transition consulting services worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 23,177 companies tracked

RevenueBase identified 23,177 company matches for energy transition consulting services worldwide as of October 2026 and tracks 346,094 professional contacts across them, including 111,517 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for energy transition 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 October 12, 2026. Country and city lists for energy transition 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 Oct 12, 2026 How this list was built

23,177Companies

346,094Contacts tracked

111,517Verified emails

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The 25 largest energy transition consulting services worldwide

Ranked by team size

Top 25 of 23,177 company matches for energy transition consulting services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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 Oct 12, 2026	10001+	35,018 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 · Oct 12, 2026 · View company records in RevenueBase
2	Technipfmc	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Oct 12, 2026	10001+	20,783 contacts →
	Exact match “TechnipFMC is a leading technology provider to the traditional and new energies industry, delivering fully integrated projects, products, and services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	WOOD	Exact match	Aberdeen, United KingdomHQ recorded Oct 12, 2026	10001+	16,351 contacts →
	Exact match “Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Engie Solutions France	Exact match	La Garenne-colombes, FranceHQ recorded Oct 12, 2026	10001+	11,566 contacts →
	Exact match “Les activités Infrastructures Energétiques Locales d’ENGIE accompagnent les collectivités, les industries et le secteur du bâtiment sur la voie de la décarbonation.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	ERM	Exact match	London, United KingdomHQ recorded Oct 12, 2026	5,001-10,000	9,532 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Dalkia	Exact match	Saint-andré-lez-lille, FranceHQ recorded Oct 12, 2026	10001+	8,823 contacts →
	Exact match “Dalkia : ensemble, relevons le défi climatique!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	KENT	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 12, 2026	10001+	7,369 contacts →
	Exact match “We design, build and maintain the assets that power the world for today and make it future-ready for tomorrow.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Roland Berger	Exact match	Munich, GermanyHQ recorded Oct 12, 2026	1,001-5,000	4,936 contacts →
	Exact match “Roland Berger is the only leading global strategy consultancy of European origin.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	FTI	Exact match	Menasha, WI, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,979 contacts →
	Exact match “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,206 contacts →
	Exact match “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Baycurrent	Exact match	港区, JapanHQ recorded Oct 12, 2026	5,001-10,000	2,164 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	BBA Consultants	Exact match	Mont-saint-hilaire, QC, CanadaHQ recorded Oct 12, 2026	1,001-5,000	1,925 contacts →
	Exact match “We help companies with their challenges and transformation by relying on our sharp business acumen, extensive practical experience and vast technological curiosity.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Westwood Professional Services	Exact match	Plano, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,801 contacts →
	Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Vulcain Engineering Group	Exact match	Neuilly-sur-seine, FranceHQ recorded Oct 12, 2026	5,001-10,000	1,643 contacts →
	Exact match “Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Steag Energy Services India Pvt. LTD	Exact match	Noida, IndiaHQ recorded Oct 12, 2026	1,001-5,000	1,639 contacts →
	Exact match “STEAG Energy Services India, established in 2001 as a wholly owned subsidiary of STEAG GmbH, Germany, is now part of the Bluspring Enterprises Limited, India’s integrated…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,513 contacts →
	Exact match “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Elsewedy Electric Power Systems Projects	Exact match	Cairo, EgyptHQ recorded Oct 12, 2026	1,001-5,000	1,462 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 · Oct 12, 2026 · View company records in RevenueBase
18	Fichtner	Exact match	Stuttgart, GermanyHQ recorded Oct 12, 2026	1,001-5,000	1,349 contacts →
	Exact match “As a leading, independent engineering and consultancy enterprise active in the sectors of energy and infrastructure, Fichtner handles challenging projects in countries all over…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Aurora Energy Research	Exact match	Oxford, FranceHQ recorded Oct 12, 2026	1,001-5,000	1,123 contacts →
	Exact match “Established in 2013, Aurora Energy Research is a leading global provider of power market forecasting and analytics for critical investment and financing decisions.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Gruppo AB	Exact match	Orzinuovi, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	1,119 contacts →
	Exact match “Since 1981, AB has tackled the challenges posed by energy sustainability, working alongside our customers to improve their competitiveness while saving energy and reducing…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Penspen	Exact match	London, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	1,056 contacts →
	Exact match “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Wärtsilä Energy	Exact match	Helsinki, FinlandHQ recorded Oct 12, 2026	10001+	965 contacts →
	Exact match “Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Anthesis Group	Exact match	London, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	927 contacts →
	Exact match “Anthesis guides clients to sustainable performance.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Fraunhofer-Institut FÜR Solare Energiesysteme ISE	Exact match	Freiburg, GermanyHQ recorded Oct 12, 2026	1,001-5,000	900 contacts →
	Exact match “The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany is the largest solar research institute in Europe.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	872 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 · Oct 12, 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 “energy transition 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 23,177 energy transition consulting services worldwide

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Energy transition consulting services worldwide at a glance

As of Oct 12, 2026

32.2%Verified-email coverage

14.9Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · London

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

15,173

11-50

6,080

51-200

1,354

201-500

272

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 energy transition consulting services are linked below.
What qualifies: Company records worldwide whose business descriptions match “energy transition 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 111,517 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 October 12, 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.

Energy transition consulting services by location

121 lists · largest first

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

How many energy transition consulting services are there worldwide?

RevenueBase identified 23,177 company matches for energy transition consulting services worldwide as of October 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 energy transition consulting services?

The United States leads with 2,613 companies, followed by France (1,480) and Germany (1,459). Every energy transition consulting services list by country and city is linked on this page.

Which city has the most energy transition consulting services?

London leads with 427 company records, followed by Paris (289) and Madrid (236).

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 111,517 professional contacts with verified work emails tracked across these 23,177 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 October 12, 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.