Company lists · Data refreshed November 2026

Top 25 Sustainability strategy firms worldwide

Name: Sustainability strategy firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 11,000 companies tracked

RevenueBase identified 11,000 company matches for sustainability strategy firms worldwide as of November 2026 and tracks 124,661 professional contacts across them, including 44,095 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for sustainability strategy firms 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 sustainability strategy firms 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

11,000Companies

124,661Contacts tracked

44,095Verified emails

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The 25 largest sustainability strategy firms worldwide

Ranked by team size

Top 25 of 11,000 company matches for sustainability strategy firms 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	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
2	ERM	Exact match	London, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	9,761 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	SLR Consulting	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	4,208 contacts →
	Exact match “SLR is a committed partner in our clients’ sustainability journeys.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	BDO Nederland	Exact match	Eindhoven, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	2,458 contacts →
	Exact match “At BDO, we help people and organisations achieve their sustainable future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Ecovadis	Exact match	Paris, JapanHQ recorded Nov 6, 2026	1,001-5,000	1,842 contacts →
	Exact match “EcoVadis is a purpose-driven company dedicated to embedding sustainability intelligence into every business decision worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Franklin Energy	Exact match	Port Washington, WI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	899 contacts →
	Exact match “Franklin Energy delivers end-to-end sustainability solutions through a portfolio of intelligent products and services that lower energy costs, reduce carbon and waste, and grow…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Watershed	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	201-500	589 contacts →
	Exact match “Watershed is the enterprise sustainability platform.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	ACT Group	Exact match	Amsterdam, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	566 contacts →
	Exact match “Organizations come to ACT when a climate target, regulatory requirement, or emissions challenge needs a solution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	AESG	Exact match	London, United Arab EmiratesHQ recorded Nov 6, 2026	201-500	427 contacts →
	Exact match “AESG is an international Consultancy, Engineering and Advisory firm committed to driving sustainability in the built environment and beyond.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	SIPL	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	n/a	407 contacts →
	Exact match “SIPL Pvt Ltd is an established and reputed firm in the Sustainable domain since 2008.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	TRIO	Exact match	Irvine, MA, United StatesHQ recorded Nov 6, 2026	201-500	393 contacts →
	Exact match “We are Trio – global energy and sustainability advisors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	The Carbon Trust	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	391 contacts →
	Exact match “Our mission is to accelerate the move to a decarbonised future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	BSR	Exact match	San Francisco, United StatesHQ recorded Nov 6, 2026	51-200	379 contacts →
	Exact match “BSR® is a sustainable business network that provides global insights, strategic advisory services, and collaborations to nearly 250 member companies in Asia, Europe, and North…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Greenflex	Exact match	Paris, FranceHQ recorded Nov 6, 2026	501-1,000	374 contacts →
	Exact match “Since 2009, GreenFlex has been a key partner in the energy, environmental and societal transformation of organizations, enabling them to change their trajectory towards an economy…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	EMM Consulting PTY Limited	Exact match	St Leonards, AustraliaHQ recorded Nov 6, 2026	201-500	363 contacts →
	Exact match “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	NUS Consulting Group	Exact match	Park Ridge, United StatesHQ recorded Nov 6, 2026	201-500	363 contacts →
	Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Climatepartner	Exact match	Munich, GermanyHQ recorded Nov 6, 2026	501-1,000	346 contacts →
	Exact match “ClimatePartner makes climate action valuable for every company at any stage of their journey.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Anthesis ESP	Exact match	Manlleu, SpainHQ recorded Nov 6, 2026	201-500	343 contacts →
	Exact match “Som una empresa especialitzada en sostenibilitat, aliada amb les organitzacions, territoris i persones compromesos amb un món més sostenible, als quals acompanyem en la seva…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Quantis	Exact match	Lausanne, SwitzerlandHQ recorded Nov 6, 2026	201-500	311 contacts →
	Exact match “Quantis, part of BCG, is a sustainability consulting firm that helps organizations translate sustainability ambition into measurable business value.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Grupo Partnership	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	1,001-5,000	273 contacts →
	Exact match “Com uma força propulsora de inovação, nos dedicamos a criar e aplicar soluções que elevam o padrão de nossos serviços no mercado.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Position Green	Exact match	Malmö, SwedenHQ recorded Nov 6, 2026	201-500	270 contacts →
	Exact match “Position Green is a sustainability data reporting and management platform that combines software capabilities with expert advisory services to revolutionize the way businesses…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Adelphi	Exact match	Berlin, GermanyHQ recorded Nov 6, 2026	201-500	255 contacts →
	Exact match “adelphi consult is a leading independent consultancy specialising in climate, environment and development.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Valora Consultores	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	51-200	255 contacts →
	Exact match “VALORA is a consulting company who focus its activity towards a new professional innovative and thrilling challenge.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Global Reporting Initiative GRI	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	51-200	249 contacts →
	Exact match “Global Reporting Initiative (GRI) is the independent nonprofit organization that is the architect of the common global language to assess and report on environmental, social and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Wardell Armstrong LLP NOW SLR	Exact match	Stoke On Trent, United KingdomHQ recorded Nov 6, 2026	501-1,000	226 contacts →
	Exact match “Wardell Armstrong is now part of SLR which is a leading global consultancy, accelerating our ability to deliver the net zero transition and helping our clients address critical…” 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 “sustainability strategy firms”. 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 11,000 sustainability strategy firms worldwide

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Sustainability strategy firms worldwide at a glance

As of Nov 6, 2026

35.4%Verified-email coverage

11.3Average contacts per company

1-10Median size (employees)

3.5%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

8,413

11-50

2,085

51-200

352

201-500

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 sustainability strategy firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “sustainability strategy firms” 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 44,095 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.

Sustainability strategy firms by location

86 lists · largest first

Every Sustainability strategy firms 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 “sustainability strategy firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainability strategy firms are there worldwide?

RevenueBase identified 11,000 company matches for sustainability strategy firms 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?

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

Which country has the most sustainability strategy firms?

The United Kingdom leads with 930 companies, followed by the United States (881) and Brazil (685). Every sustainability strategy firms list by country and city is linked on this page.

Which city has the most sustainability strategy firms?

London leads with 382 company records, followed by Paris (185) and Sao Paulo (167).

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 44,095 professional contacts with verified work emails tracked across these 11,000 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.