Company lists · Data refreshed November 2026

Top 25 Sustainability behavior change firms worldwide

RevenueBase identified 3,921 company matches for sustainability behavior change firms worldwide as of November 2026 and tracks 35,580 professional contacts across them, including 15,117 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for sustainability behavior change 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 behavior change 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
3,921Companies
35,580Contacts tracked
15,117Verified emails
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The 25 largest sustainability behavior change firms worldwide

Ranked by team size
Top 25 of 3,921 company matches for sustainability behavior change 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 6, 20265,001-10,0009,761 contacts →

Exact match

“Sustainability is our business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0004,208 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
3Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500427 contacts →

Exact match

“We’re MindGym.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchParis, FranceHQ recorded Nov 6, 2026501-1,000374 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
5Exact matchSt Leonards, AustraliaHQ recorded Nov 6, 2026201-500363 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
6Exact matchManlleu, SpainHQ recorded Nov 6, 2026201-500343 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
7Exact matchLausanne, SwitzerlandHQ recorded Nov 6, 2026201-500311 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
8Exact matchMadrid, SpainHQ recorded Nov 6, 202651-200255 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
9Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 2026201-500170 contacts →

Exact match

“Klimaatroute zet mensen in beweging.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchParis, FranceHQ recorded Nov 6, 202651-200168 contacts →

Exact match

“Expert de la réconciliation entre économie et écologie, R3 fait basculer les entreprises vers une transition environnementale et sociétale réellement performante.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBussum, NetherlandsHQ recorded Nov 6, 202651-200168 contacts →

Exact match

“Wij zijn Kyden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202651-200159 contacts →

Exact match

“Transformar empresas e pessoas por meio da sustentabilidade.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchParis, FranceHQ recorded Nov 6, 202651-200156 contacts →

Exact match

“Le temps presse, les défis que nous rencontrons sont immenses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBristol, United KingdomHQ recorded Nov 6, 202651-200143 contacts →

Exact match

“At Eunomia, we're social-environmental problem-solvers and researchers with a difference.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBekasi, IndonesiaHQ recorded Nov 6, 202651-200117 contacts →

Exact match

“We aim to foster sustainable change by empowering individuals with the skills, mindset, and knowledge needed to impact people and the planet positively.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSeattle, CA, United StatesHQ recorded Nov 6, 202651-200110 contacts →

Exact match

“Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBilzen, BelgiumHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“Encon supports businesses as an independent agency with creative and innovative solutions in their transition to become more sustainable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchUnited StatesHQ recorded Nov 6, 2026501-1,000100 contacts →

Exact match

“The ESG Institute is a global sustainability advisory, education, and solutions organization, with an international network of over 500 experts across Europe, the Middle East…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSydney, AustraliaHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“Edge Impact is a sustainability and climate advisory firm (founded 2008) that translates climate science into clear strategy and measurable outcomes, delivering transition…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchParis, FranceHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“UTOPIES is the top French consulting firm dedicated exclusively, since its creation in 1993, to the promotion of sustainable development through consulting and think tank…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGreifenberg, GermanyHQ recorded Nov 6, 202611-5086 contacts →

Exact match

“Seit unterstützt die DFGE Unternehmen dabei, Nachhaltigkeit messbar und strategisch nutzbar zu machen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGateshead, United KingdomHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMelbourne, AustraliaHQ recorded Nov 6, 202651-20074 contacts →

Exact match

“Nation Partners isn’t your typical consulting firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLyon, FranceHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“New-e, c'est la société de conseil opérationnel, spécialiste des métiers de la transition durable!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“We’re a global corporate reporting, communications and sustainability agency helping world leading brands deliver ambitious strategies, credible disclosures and meaningful…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,921 sustainability behavior change firms worldwide

See the full list, filter by size, metro and specialty, and access 15,117 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainability behavior change firms worldwide at a glance

As of Nov 6, 2026
42.5%Verified-email coverage
9.1Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
3,223
11-50
558
51-200
96
201-500
16
501-1,000
7
1,001-5,000
5
5,001-10,000
4
10001+
3

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 behavior change firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “sustainability behavior change 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 15,117 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 behavior change firms by location

32 lists · largest first

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

How many sustainability behavior change firms are there worldwide?

RevenueBase identified 3,921 company matches for sustainability behavior change 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?

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

Which country has the most sustainability behavior change firms?

The United States leads with 365 companies, followed by the United Kingdom (333) and France (306). Every sustainability behavior change firms list by country and city is linked on this page.

Which city has the most sustainability behavior change firms?

London leads with 162 company records, followed by Paris (92) and Sao Paulo (50).

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 15,117 professional contacts with verified work emails tracked across these 3,921 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.