Company lists · Data refreshed September 2026

Top 25 Climate transition consultancies worldwide

Name: Climate transition consultancies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 19,800 companies tracked

RevenueBase identified 19,800 company matches for climate transition consultancies worldwide as of September 2026 and tracks 328,968 professional contacts across them, including 132,507 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for climate transition consultancies 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 September 27, 2026. Country and city lists for climate transition consultancies 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 Sep 27, 2026 How this list was built

19,800Companies

328,968Contacts tracked

132,507Verified emails

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The 25 largest climate transition consultancies worldwide

Ranked by team size

Top 25 of 19,800 company matches for climate transition consultancies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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	Boston Consulting Group BCG	Exact match	Boston, MA, United StatesHQ recorded Sep 27, 2026	10001+	38,730 contacts →
	Exact match “Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Arcadis	Exact match	Amsterdam, NetherlandsHQ recorded Sep 27, 2026	10001+	33,846 contacts →
	Exact match “Arcadis is a leading global partner, delivering transformative projects with businesses, cities and industries.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Stantec	Exact match	Edmonton, AB, CanadaHQ recorded Sep 27, 2026	10001+	28,416 contacts →
	Exact match “Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Bain & Company	Exact match	Boston, MA, United StatesHQ recorded Sep 27, 2026	10001+	21,689 contacts →
	Exact match “Bain & Company is a global consultancy that helps the world’s most ambitious change makers define the future.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	Engie Solutions France	Exact match	La Garenne-colombes, FranceHQ recorded Sep 27, 2026	10001+	12,011 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 · Sep 27, 2026 · View company records in RevenueBase
6	ERM	Exact match	London, United KingdomHQ recorded Sep 27, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Roland Berger	Exact match	Munich, GermanyHQ recorded Sep 27, 2026	1,001-5,000	4,632 contacts →
	Exact match “Roland Berger is the only leading global strategy consultancy of European origin.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	SLR Consulting	Exact match	London, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	3,848 contacts →
	Exact match “SLR is a committed partner in our clients’ sustainability journeys.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	APTIM	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,639 contacts →
	Exact match “APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	BDO Nederland	Exact match	Eindhoven, NetherlandsHQ recorded Sep 27, 2026	1,001-5,000	2,428 contacts →
	Exact match “At BDO, we help people and organisations achieve their sustainable future.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Baringa	Exact match	London, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	2,179 contacts →
	Exact match “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Ricardo	Exact match	West Sussex, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	2,104 contacts →
	Exact match “Ricardo, a member of @WSP, is a global engineering company, specialising in complex propulsion, driveline and energy systems, delivering high integrity solutions for customers…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Cerema	Exact match	Lyon, FranceHQ recorded Sep 27, 2026	1,001-5,000	1,951 contacts →
	Exact match “Le Cerema, référent public en aménagement, accompagne l’État, les collectivités et les entreprises pour adapter les territoires au changement climatique.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	BBA Consultants	Exact match	Mont-saint-hilaire, QC, CanadaHQ recorded Sep 27, 2026	1,001-5,000	1,863 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 · Sep 27, 2026 · View company records in RevenueBase
15	Implement Consulting Group	Exact match	Hellerup, DenmarkHQ recorded Sep 27, 2026	1,001-5,000	1,681 contacts →
	Exact match “How can organisations become truly fit for humans and fit for the future?” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,629 contacts →
	Exact match “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	IPE Global Limited	Exact match	New Delhi, IndiaHQ recorded Sep 27, 2026	501-1,000	1,322 contacts →
	Exact match “Headquartered in India with six international offices in Cambodia, Ethiopia, Kenya, the Philippines, Germany and the United Kingdom, IPE Global Group offers a range of integrated…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Ramboll Management Consulting	Exact match	2300 Copenhagen S, United KingdomHQ recorded Sep 27, 2026	501-1,000	1,199 contacts →
	Exact match “At Ramboll Management Consulting, we strive for sustainable change.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	OLA	Exact match	Austin, TX, United StatesHQ recorded Sep 27, 2026	n/a	1,145 contacts →
	Exact match “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Verdantas	Exact match	Tampa, FL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,139 contacts →
	Exact match “At Verdantas, we blend engineering and environmental science together with advanced technology and world-renowned labs to create solutions with the big picture in mind.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Baker Tilly Netherlands	Exact match	Utrecht, NetherlandsHQ recorded Sep 27, 2026	1,001-5,000	996 contacts →
	Exact match “Meer dan cijfers: wij zijn jouw partner in groei Bij Baker Tilly kijken we verder.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Anthesis Group	Exact match	London, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	894 contacts →
	Exact match “Anthesis guides clients to sustainable performance.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	South Pole	Exact match	Zurich, SwitzerlandHQ recorded Sep 27, 2026	501-1,000	811 contacts →
	Exact match “South Pole is the world's leading carbon asset developer and climate consultancy.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Energy Solutions	Exact match	Oakland, CA, United StatesHQ recorded Sep 27, 2026	201-500	772 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 · Sep 27, 2026 · View company records in RevenueBase
25	Climatebase	Exact match	San Francisco, CA, United StatesHQ recorded Sep 27, 2026	n/a	759 contacts →
	Exact match “Climatebase is the community for climate & sustainability professionals, and the world's #1 platform for green jobs.” Recorded in the RevenueBase company graph · Sep 27, 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 “climate transition consultancies”. 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 19,800 climate transition consultancies worldwide

See the full list, filter by size, metro and specialty, and access 132,507 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Climate transition consultancies worldwide at a glance

As of Sep 27, 2026

40.3%Verified-email coverage

16.6Average contacts per company

1-10Median size (employees)

3.3%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

14,890

11-50

3,911

51-200

708

201-500

133

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 climate transition consultancies are linked below.
What qualifies: Company records worldwide whose business descriptions match “climate transition consultancies” 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 132,507 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 September 27, 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.

Climate transition consultancies by location

92 lists · largest first

Every Climate transition consultancies 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 “climate transition consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many climate transition consultancies are there worldwide?

RevenueBase identified 19,800 company matches for climate transition consultancies worldwide as of September 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?

Boston Consulting Group BCG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most climate transition consultancies?

The United States leads with 2,105 companies, followed by the United Kingdom (1,601) and France (1,471). Every climate transition consultancies list by country and city is linked on this page.

Which city has the most climate transition consultancies?

London leads with 654 company records, followed by Paris (425) and Sao Paulo (280).

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 132,507 professional contacts with verified work emails tracked across these 19,800 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 September 27, 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.