Company lists · Data refreshed September 2026

Top 25 Corporate sustainability consulting firms worldwide

Name: Corporate sustainability consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 21,986 companies tracked

RevenueBase identified 21,986 company matches for corporate sustainability consulting firms worldwide as of September 2026 and tracks 178,291 professional contacts across them, including 61,678 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for corporate sustainability consulting 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 September 27, 2026. Country and city lists for corporate sustainability consulting 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 Sep 27, 2026 How this list was built

21,986Companies

178,291Contacts tracked

61,678Verified emails

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The 25 largest corporate sustainability consulting firms worldwide

Ranked by team size

Top 25 of 21,986 company matches for corporate sustainability consulting firms 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	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	10001+	9,318 contacts →
	Exact match “What if you could shape built and natural environments – and the future of those that use them?” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	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
3	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
4	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
5	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
6	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
7	Ecovadis	Exact match	Paris, JapanHQ recorded Sep 27, 2026	1,001-5,000	1,854 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	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
9	Adec Innovations	Exact match	Irvine, CA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,304 contacts →
	Exact match “ADEC Innovations seamlessly delivers fully integrated, cost-effective industry expertise, business process & data management, and software services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	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
11	BPA	Exact match	Montréal, QC, CanadaHQ recorded Sep 27, 2026	1,001-5,000	882 contacts →
	Exact match “IMPACTFUL ENGINEERING At BPA, it’s simple: we are building experts.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Tauw Nederland	Exact match	Deventer, NetherlandsHQ recorded Sep 27, 2026	1,001-5,000	800 contacts →
	Exact match “TAUW is een Europees advies- en ingenieursbureau.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	Uniqus Consultech INC	Exact match	San Jose, CA, United StatesHQ recorded Sep 27, 2026	501-1,000	675 contacts →
	Exact match “Uniqus Consultech is an AI and global tech-enabled consulting company that specializes in Accounting & Reporting Consulting, Governance, Risk & Compliance, Sustainability &…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Ricardo PLC	Exact match	London, United KingdomHQ recorded Sep 27, 2026	1,001-5,000	670 contacts →
	Exact match “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	Antea Group USA	Exact match	St Paul, MN, United StatesHQ recorded Sep 27, 2026	1,001-5,000	658 contacts →
	Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Quadrante	Exact match	Alfragide, PortugalHQ recorded Sep 27, 2026	1,001-5,000	570 contacts →
	Exact match “Quadrante is an Iberian leading professional services consulting firm in Engineering, Architecture, Environment and Sustainability, renowned for its agility, client-centric…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Diagonal	Exact match	Sao Paulo, BrazilHQ recorded Sep 27, 2026	501-1,000	527 contacts →
	Exact match “Diagonal is a pioneering socio-environmental management consultancy that helps companies, organizations and governments to raise their ESG standard and generate a positive…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Synergia Consultoria Socioambiental	Exact match	São Paulo, BrazilHQ recorded Sep 27, 2026	201-500	497 contacts →
	Exact match “We are a company specialized in pioneer socio-environmental consultancy, in which for more than 17 years have worked with the creation and execution of effective solutions to the…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	ADP Consulting	Exact match	Melbourne, AustraliaHQ recorded Sep 27, 2026	201-500	468 contacts →
	Exact match “ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Sete Soluções E Tecnologia Ambiental	Exact match	Belo Horizonte, BrazilHQ recorded Sep 27, 2026	501-1,000	448 contacts →
	Exact match “Somos uma das maiores consultorias em meio ambiente do Brasil, fundada em 1997, contando, hoje, com uma equipe técnica multidisciplinar permanente, que congrega profissionais das…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Groundwater & Environmental Services, INC	Exact match	Wall Township, NJ, United StatesHQ recorded Sep 27, 2026	201-500	447 contacts →
	Exact match “We are Groundwater & Environmental Services, Inc, better known as GES.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	SIPL	Exact match	Noida, IndiaHQ recorded Sep 27, 2026	n/a	400 contacts →
	Exact match “SIPL Pvt Ltd is an established and reputed firm in the Sustainable domain since 2008.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Greenflex	Exact match	Paris, FranceHQ recorded Sep 27, 2026	501-1,000	390 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 · Sep 27, 2026 · View company records in RevenueBase
24	TRIO	Exact match	Irvine, CA, United StatesHQ recorded Sep 27, 2026	201-500	383 contacts →
	Exact match “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	P2s	Exact match	Long Beach, CA, United StatesHQ recorded Sep 27, 2026	201-500	375 contacts →
	Exact match “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” 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 “corporate sustainability consulting 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 21,986 corporate sustainability consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 61,678 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Corporate sustainability consulting firms worldwide at a glance

As of Sep 27, 2026

34.6%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

16,859

11-50

4,199

51-200

663

201-500

129

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 corporate sustainability consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “corporate sustainability consulting 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 61,678 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.

Corporate sustainability consulting firms by location

120 lists · largest first

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

How many corporate sustainability consulting firms are there worldwide?

RevenueBase identified 21,986 company matches for corporate sustainability consulting firms 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?

WSP In The U.S tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most corporate sustainability consulting firms?

The United States leads with 2,133 companies, followed by Brazil (2,094) and France (1,264). Every corporate sustainability consulting firms list by country and city is linked on this page.

Which city has the most corporate sustainability consulting firms?

London leads with 515 company records, followed by Sao Paulo (447) and Paris (368).

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 61,678 professional contacts with verified work emails tracked across these 21,986 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.