Company lists · Data refreshed October 2026

Top 25 Renewable energy transition consultants worldwide

Name: Renewable energy transition consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 22, 2026 14,277 companies tracked

RevenueBase identified 14,277 company matches for renewable energy transition consultants worldwide as of October 2026 and tracks 149,026 professional contacts across them, including 44,112 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for renewable energy transition consultants 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 22, 2026. Country and city lists for renewable energy transition consultants 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 22, 2026 How this list was built

14,277Companies

149,026Contacts tracked

44,112Verified emails

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The 25 largest renewable energy transition consultants worldwide

Ranked by team size

Top 25 of 14,277 company matches for renewable energy transition consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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	Dalkia	Exact match	Saint-andré-lez-lille, FranceHQ recorded Oct 22, 2026	10001+	8,823 contacts →
	Exact match “Dalkia : ensemble, relevons le défi climatique!” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2	Vulcain Engineering Group	Exact match	Neuilly-sur-seine, FranceHQ recorded Oct 22, 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 22, 2026 · View company records in RevenueBase
3	Fichtner	Exact match	Stuttgart, GermanyHQ recorded Oct 22, 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 22, 2026 · View company records in RevenueBase
4	Casa DOS Ventos Energias Renováveis	Exact match	Sao Paulo, BrazilHQ recorded Oct 22, 2026	501-1,000	1,229 contacts →
	Exact match “A Casa dos Ventos é uma empresa brasileira que desenvolve, constrói e opera projetos de geração de energia a partir de fontes renováveis e tem atuado como protagonista na…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5	Lightsource BP	Exact match	London, United KingdomHQ recorded Oct 22, 2026	1,001-5,000	1,116 contacts →
	Exact match “Lightsource bp is working to support a future powered by renewable, affordable and reliable energy that benefits our partners, people and planet.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
6	Penspen	Exact match	London, United KingdomHQ recorded Oct 22, 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 22, 2026 · View company records in RevenueBase
7	Wärtsilä Energy	Exact match	Helsinki, FinlandHQ recorded Oct 22, 2026	10001+	965 contacts →
	Exact match “Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Oct 22, 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 22, 2026 · View company records in RevenueBase
9	Cleanmax	Exact match	Mumbai, IndiaHQ recorded Oct 22, 2026	201-500	809 contacts →
	Exact match “CleanMax is India’s largest commercial and industrial (“C&I”) renewable energy provider with 3 GW of operational, owned and managed capacity.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10	Hydro Tasmania	Exact match	Hobart, AustraliaHQ recorded Oct 22, 2026	1,001-5,000	780 contacts →
	Exact match “At Hydro Tasmania, we’re leaders in renewable energy, backed by our 100+ year legacy of hydropower.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11	Resource Innovations	Exact match	Half Moon Bay, CA, United StatesHQ recorded Oct 22, 2026	501-1,000	774 contacts →
	Exact match “Resource Innovations (RI) is an energy transformation firm.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12	Monenco Iran Consulting Engineers	Exact match	Tehran, IranHQ recorded Oct 22, 2026	1,001-5,000	773 contacts →
	Exact match “Monenco Iran was formed in 1973 as a joint venture between the private sector of Iran and Montreal Engineering Company of Canada.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13	Vikran Engineering LTD	Exact match	Thane, IndiaHQ recorded Oct 22, 2026	501-1,000	703 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 · Oct 22, 2026 · View company records in RevenueBase
14	WTS Energy	Exact match	The Hague, NetherlandsHQ recorded Oct 22, 2026	1,001-5,000	654 contacts →
	Exact match “The Energy Transition brings new challenges and opportunities to all of us.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15	Grupotec	Exact match	Valencia, SpainHQ recorded Oct 22, 2026	501-1,000	560 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 · Oct 22, 2026 · View company records in RevenueBase
16	Fourth Partner Energy	Exact match	Hyderabad, IndiaHQ recorded Oct 22, 2026	201-500	559 contacts →
	Exact match “Fourth Partner Energy is India’s leading Renewable Energy firm focusing on building and financing Solar, Wind, Hybrid and Battery Storage projects/ solutions for commercial…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17	Revergy	Exact match	Seville, SpainHQ recorded Oct 22, 2026	501-1,000	538 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 · Oct 22, 2026 · View company records in RevenueBase
18	Amara Nzero Brasil	Exact match	Salvador, BrazilHQ recorded Oct 22, 2026	501-1,000	531 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 · Oct 22, 2026 · View company records in RevenueBase
19	Natural Power	Exact match	Castle Douglas, United KingdomHQ recorded Oct 22, 2026	501-1,000	517 contacts →
	Exact match “Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20	Mitcon Consultancy And Engineering Services LTD	Exact match	Pune, IndiaHQ recorded Oct 22, 2026	201-500	499 contacts →
	Exact match “MITCON Consultancy & Engineering Services Limited, an ISO 9001:2015 certified company & NSE listed company, was established in 1982.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21	Ginger Sofreco	Exact match	Clichy, FranceHQ recorded Oct 22, 2026	51-200	497 contacts →
	Exact match “Ginger SOFRECO is an engineering and consulting firm dedicated to international development cooperation and the implementation of industrial projects.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22	Elera Renováveis	Exact match	São Paulo, BrazilHQ recorded Oct 22, 2026	501-1,000	486 contacts →
	Exact match “Nossa energia vem do sol, do vento e da água.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23	VSB Group	Exact match	Dresden, GermanyHQ recorded Oct 22, 2026	201-500	484 contacts →
	Exact match “The VSB Group is headquartered in Dresden and is one of the leading full-service providers in the field of renewable energy.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24	CRAM	Exact match	Le Havre, FranceHQ recorded Oct 22, 2026	501-1,000	464 contacts →
	Exact match “Nous sommes des femmes et des hommes engagés, qui chaque matin se lèvent avec une mission : être des acteurs clés de la transition énergétique.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25	Energiewacht	Exact match	Zwolle, NetherlandsHQ recorded Oct 22, 2026	1,001-5,000	454 contacts →
	Exact match “Welkom in de boeiende wereld van de energietransitie.” Recorded in the RevenueBase company graph · Oct 22, 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 “renewable energy transition consultants”. 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 14,277 renewable energy transition consultants worldwide

See the full list, filter by size, metro and specialty, and access 44,112 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable energy transition consultants worldwide at a glance

As of Oct 22, 2026

29.6%Verified-email coverage

10.4Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · London

Oct 22, 2026Page data refreshed

Companies by employee count

1-10

8,994

11-50

3,998

51-200

932

201-500

177

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 renewable energy transition consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “renewable energy transition consultants” 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 44,112 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 22, 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.

Renewable energy transition consultants by location

80 lists · largest first

Every Renewable energy transition consultants 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 “renewable energy transition consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy transition consultants are there worldwide?

RevenueBase identified 14,277 company matches for renewable energy transition consultants 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?

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

Which country has the most renewable energy transition consultants?

The United States leads with 1,228 companies, followed by Germany (970) and France (916). Every renewable energy transition consultants list by country and city is linked on this page.

Which city has the most renewable energy transition consultants?

London leads with 249 company records, followed by Madrid (151) and Paris (151).

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 44,112 professional contacts with verified work emails tracked across these 14,277 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 22, 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.