Company lists · Data refreshed November 2026

Top 25 Energy transition consulting groups worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 15,358 companies tracked

RevenueBase identified 15,358 company matches for energy transition consulting groups worldwide as of November 2026 and tracks 235,822 professional contacts across them, including 74,253 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 groups 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 energy transition consulting groups 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

15,358Companies

235,822Contacts tracked

74,253Verified emails

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The 25 largest energy transition consulting groups worldwide

Ranked by team size

Top 25 of 15,358 company matches for energy transition consulting groups 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	WOOD	Exact match	Aberdeen, United KingdomHQ recorded Nov 6, 2026	10001+	16,375 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 · Nov 6, 2026 · View company records in RevenueBase
3	Engie Solutions France	Exact match	La Garenne-colombes, FranceHQ recorded Nov 6, 2026	10001+	11,810 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 · Nov 6, 2026 · View company records in RevenueBase
4	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,264 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 · Nov 6, 2026 · View company records in RevenueBase
5	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,570 contacts →
	Exact match “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure company delivering integrated solutions to create reliable power and modernize infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Aurora Energy Research	Exact match	Oxford, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,163 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 · Nov 6, 2026 · View company records in RevenueBase
7	Penspen	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,100 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 · Nov 6, 2026 · View company records in RevenueBase
8	Wärtsilä Energy	Exact match	Helsinki, FinlandHQ recorded Nov 6, 2026	10001+	991 contacts →
	Exact match “Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Rystad Energy	Exact match	Oslo, NorwayHQ recorded Nov 6, 2026	501-1,000	990 contacts →
	Exact match “Rystad Energy is an independent research and intelligence company, dedicated to equipping clients with data, insights and education that power better decision-making.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Anthesis Group	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	956 contacts →
	Exact match “Anthesis guides clients to sustainable performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	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
12	Capco Energy	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	880 contacts →
	Exact match “For 25 years Capco’s Energy practice has combined innovative thinking with deep industry knowledge to provide business consulting, digital transformation and technology services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Energy Solutions	Exact match	Oakland, CA, United StatesHQ recorded Nov 6, 2026	201-500	815 contacts →
	Exact match “Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Resource Innovations	Exact match	Half Moon Bay, OR, United StatesHQ recorded Nov 6, 2026	501-1,000	793 contacts →
	Exact match “Resource Innovations (RI) is an energy transformation firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	South Pole	Exact match	Zurich, SwitzerlandHQ recorded Nov 6, 2026	501-1,000	790 contacts →
	Exact match “South Pole is the world's leading carbon asset developer and climate consultancy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Electric Power Engineers	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	716 contacts →
	Exact match “Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	WTS Energy	Exact match	The Hague, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	675 contacts →
	Exact match “The Energy Transition brings new challenges and opportunities to all of us.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	E CO	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	645 contacts →
	Exact match “For over 26 years, our consultants have been supporting and guiding our clients to achieve low-carbon climate-resilient development.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Amara Nzero Brasil	Exact match	Salvador, BrazilHQ recorded Nov 6, 2026	501-1,000	551 contacts →
	Exact match “Somos uma empresa com uma grande experiência integral em energia sustentável fortemente comprometida com a Transição Energética.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Serentica	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	201-500	549 contacts →
	Exact match “Serentica Renewables India Private Limited,(Serentica) is a is an end-to-end energy solutions company enabling large-scale heavy energy intensive industries and sector to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	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
22	Kapsarc	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	51-200	533 contacts →
	Exact match “King Abdullah Petroleum Studies and Research Center (KAPSARC) is an advisory think tank within global energy economics and sustainability providing services to entities and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	XODUS	Exact match	Aberdeen, United KingdomHQ recorded Nov 6, 2026	201-500	527 contacts →
	Exact match “As a global energy consultancy, we unite our unique and diverse people to share knowledge, innovate and inspire change within the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	German Energy Agency Dena	Exact match	Berlin, GermanyHQ recorded Nov 6, 2026	501-1,000	525 contacts →
	Exact match “dena is a centre of excellence for the applied energy transition and climate protection.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Natural Power	Exact match	Castle Douglas, United KingdomHQ recorded Nov 6, 2026	501-1,000	519 contacts →
	Exact match “Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” 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 “energy transition consulting groups”. 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 15,358 energy transition consulting groups worldwide

See the full list, filter by size, metro and specialty, and access 74,253 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy transition consulting groups worldwide at a glance

As of Nov 6, 2026

31.5%Verified-email coverage

15.4Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

10,284

11-50

3,812

51-200

832

201-500

161

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 groups are linked below.
What qualifies: Company records worldwide whose business descriptions match “energy transition consulting groups” 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 74,253 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.

Energy transition consulting groups by location

92 lists · largest first

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

How many energy transition consulting groups are there worldwide?

RevenueBase identified 15,358 company matches for energy transition consulting groups 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 energy transition consulting groups?

The United States leads with 2,001 companies, followed by the United Kingdom (1,213) and France (1,199). Every energy transition consulting groups list by country and city is linked on this page.

Which city has the most energy transition consulting groups?

London leads with 375 company records, followed by Paris (241) and Madrid (179).

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 74,253 professional contacts with verified work emails tracked across these 15,358 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.