Company lists · Data refreshed September 2026

Top 25 Sustainability reporting consultants worldwide

Name: Sustainability reporting consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 10,964 companies tracked

RevenueBase identified 10,964 company matches for sustainability reporting consultants worldwide as of September 2026 and tracks 89,631 professional contacts across them, including 32,000 with verified work emails. Brazil is the largest market and London the largest hub.

This list covers company matches for sustainability reporting 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 September 22, 2026. Country and city lists for sustainability reporting 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 Sep 22, 2026 How this list was built

10,964Companies

89,631Contacts tracked

32,000Verified emails

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The 25 largest sustainability reporting consultants worldwide

Ranked by team size

Top 25 of 10,964 company matches for sustainability reporting consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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	ERM	Exact match	London, United KingdomHQ recorded Sep 22, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2	SLR Consulting	Exact match	London, United KingdomHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
3	BDO Nederland	Exact match	Eindhoven, NetherlandsHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
4	Ecovadis	Exact match	Paris, JapanHQ recorded Sep 22, 2026	1,001-5,000	1,854 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5	Adec Innovations	Exact match	Irvine, CA, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
6	OLA	Exact match	Austin, TX, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
7	Achilles Information Limited	Exact match	Abingdon, United KingdomHQ recorded Sep 22, 2026	501-1,000	836 contacts →
	Exact match “For more than 30 years, Achilles has protected organisations’ business interests and reputations by providing unrivalled levels of supply chain transparency, carbon reduction and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8	Uniqus Consultech INC	Exact match	San Jose, CA, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
9	Diagonal	Exact match	Sao Paulo, BrazilHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
10	ADP Consulting	Exact match	Melbourne, AustraliaHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
11	SIPL	Exact match	Noida, IndiaHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
12	TRIO	Exact match	Irvine, CA, United StatesHQ recorded Sep 22, 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 22, 2026 · View company records in RevenueBase
13	AESG	Exact match	London, United Arab EmiratesHQ recorded Sep 22, 2026	201-500	373 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 · Sep 22, 2026 · View company records in RevenueBase
14	BSR	Exact match	San Francisco, CA, United StatesHQ recorded Sep 22, 2026	51-200	369 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 · Sep 22, 2026 · View company records in RevenueBase
15	EMM Consulting PTY Limited	Exact match	St Leonards, AustraliaHQ recorded Sep 22, 2026	201-500	361 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 · Sep 22, 2026 · View company records in RevenueBase
16	Valpak Limited	Exact match	Stratford-upon-avon, United KingdomHQ recorded Sep 22, 2026	201-500	347 contacts →
	Exact match “Valpak, a Reconomy brand, is an EcoVadis Platinum certified leader in environmental compliance, recycling, and sustainability solutions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17	Ecol Studio Lifeanalytics	Exact match	Lucca, ItalyHQ recorded Sep 22, 2026	201-500	345 contacts →
	Exact match “Salute, Sicurezza, Ambiente e Qualità del prodotto: sei davvero sostenibile?” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18	Anthesis ESP	Exact match	Manlleu, SpainHQ recorded Sep 22, 2026	201-500	337 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 · Sep 22, 2026 · View company records in RevenueBase
19	NUS Consulting Group	Exact match	Park Ridge, NJ, United StatesHQ recorded Sep 22, 2026	201-500	336 contacts →
	Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20	Moore Brasil	Exact match	BrazilHQ recorded Sep 22, 2026	501-1,000	332 contacts →
	Exact match “Desde 1997 no Brasil, somos membros da Moore Global, uma das principais redes de Auditoria, Consultoria, Outsourcing e Tributos presente em mais de 114 países e entre as maiores…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21	Umwelt Environmental & Social Consultants	Exact match	Teralba, AustraliaHQ recorded Sep 22, 2026	201-500	329 contacts →
	Exact match “Umwelt has been trusted by clients and communities for over 30 years.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22	Quantis	Exact match	Lausanne, SwitzerlandHQ recorded Sep 22, 2026	201-500	325 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 · Sep 22, 2026 · View company records in RevenueBase
23	Atelier TEN	Exact match	London, United KingdomHQ recorded Sep 22, 2026	51-200	323 contacts →
	Exact match “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24	Position Green	Exact match	Malmö, SwedenHQ recorded Sep 22, 2026	201-500	306 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 · Sep 22, 2026 · View company records in RevenueBase
25	WST LAW & TAX Firm	Exact match	Milano, ItalyHQ recorded Sep 22, 2026	201-500	300 contacts →
	Exact match “WST is a firm providing integrated consultancy in Legal, Tax, Risk, Compliance, ESG and Accounting areas of business.” Recorded in the RevenueBase company graph · Sep 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 “sustainability reporting 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 10,964 sustainability reporting consultants worldwide

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Sustainability reporting consultants worldwide at a glance

As of Sep 22, 2026

35.7%Verified-email coverage

8.2Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

8,453

11-50

2,061

51-200

334

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 reporting consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “sustainability reporting 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 32,000 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 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.

Sustainability reporting consultants by location

58 lists · largest first

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

How many sustainability reporting consultants are there worldwide?

RevenueBase identified 10,964 company matches for sustainability reporting consultants 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?

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

Which country has the most sustainability reporting consultants?

Brazil leads with 927 companies, followed by the United States (850) and the United Kingdom (820). Every sustainability reporting consultants list by country and city is linked on this page.

Which city has the most sustainability reporting consultants?

London leads with 350 company records, followed by Sao Paulo (215) and Paris (162).

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 32,000 professional contacts with verified work emails tracked across these 10,964 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 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.