Company lists · Data refreshed September 2026

Top 25 Sustainability audit services based in the Netherlands

RevenueBase identified 81 sustainability audit services headquartered in the Netherlands as of September 2026 and tracks 1,415 professional contacts across them, including 520 with verified work emails. Amsterdam is the largest hub.

This list covers sustainability audit services headquartered in the Netherlands, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
81Companies
1,415Contacts tracked
520Verified emails
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The 25 largest sustainability audit services based in the Netherlands

Ranked by team size
Top 25 of 81 sustainability audit services based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability audit services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 20261,001-5,000954 contacts →

Indirect evidence

“Morningstar Sustainalytics data and insights allow investors and companies to spend less time grappling with ESG and climate, and more time making the most of it.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceRotterdam, NetherlandsHQ checked Sep 29, 202611-5050 contacts →

Partial evidence

“Nexio Projects is an international consultancy firm, helping organisations reach their sustainability ambitions.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceRotterdam, NetherlandsHQ checked Sep 29, 202611-5037 contacts →

Indirect evidence

“We simplify ESG performance tracking and reporting.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceAmstelveen, NetherlandsHQ checked Sep 29, 202651-20024 contacts →

Partial evidence

“Sustainability is no longer about doing less harm.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceRotterdam, NetherlandsHQ checked Sep 29, 202611-5022 contacts →

Partial evidence

“The Global Sustainable Enterprise System (GSES) is worlds most used and trusted sustainability rating platform based on third party verified data.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceUtrecht, NetherlandsHQ checked Sep 29, 202611-5019 contacts →

Partial evidence

“Ecomatters is a sustainability consultancy that works closely with corporate and governmental clients to address their sustainability challenges.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceAmsterdam, NetherlandsHQ checked Sep 29, 202611-5018 contacts →

Partial evidence

“The Overview Effect was founded by a mix of freelance sustainability consultants and seasoned ESG veterans who have successfully built a sustainability consultancy before.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceAmsterdam, NetherlandsHQ checked Sep 29, 202611-5017 contacts →

Partial evidence

“Hedgehog provides the Hedgehog Carbon Platform, an easy-to-use carbon accounting platform, and sustainability consultancy aimed at SMEs, corporate businesses and local governments.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceThe Hague, NetherlandsHQ checked Sep 29, 202611-5015 contacts →

Partial evidence

“Intire is a boutique consultancy firm that is specialized in sustainability reporting, integrated reporting, and non-financial reporting.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceZwolle, NetherlandsHQ checked Sep 29, 202611-5012 contacts →

Indirect evidence

“Bij Planet Yes helpen we organisaties duurzaamheid in te zetten als Wij geloven dat duurzaamheid niet iets is wat je ‘erbij doet’, maar de sleutel is tot een sterke en…”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceArnhem, NetherlandsHQ checked Sep 29, 20261-1011 contacts →

Partial evidence

“One Click ESG is a consultancy firm that supports organizations in integrating sustainability into their business processes and reporting on Environmental, Social, and Governance…”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 2026n/a10 contacts →

Indirect evidence

“AV Group (AVG) is consulting company specializing on projects improving the profitability of business through the implementation of the philosophy of sustainable development and…”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 20261-109 contacts →

Indirect evidence

“Eevery heeft als missie: verduurzaming eenvoudig maken voor het mkb.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceRotterdam, NetherlandsHQ checked Sep 29, 20261-108 contacts →

Indirect evidence

“The numbers tell the tale!”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceVeenendaal, NetherlandsHQ checked Sep 29, 20261-108 contacts →

Indirect evidence

“The effects of climate change are becoming increasingly visible in everyday life, placing growing pressure on companies, communities, and individuals.”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceThe Hague, NetherlandsHQ checked Sep 29, 202611-508 contacts →

Partial evidence

“Sustainfinity, as a Corporate Sustainability Platform, helps companies to gather and analyze data, implementation of surveys and materiality analysis to create materiality matrix…”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceAmsterdam, NetherlandsHQ checked Sep 29, 20261-106 contacts →

Partial evidence

“Kroll Sustainability Reporting (Kroll SR) supports investors, shareholders and organizations in gaining clear insight into ESG risks, opportunities, and impact.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceNetherlandsHQ checked Sep 29, 20261-105 contacts →

Indirect evidence

“Green Label Service provides customized advice to make organizations more sustainable.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 202611-504 contacts →

Indirect evidence

“Everything we do impacts people and planet.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceUtrecht, NetherlandsHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“Lutz Consulting is a renewables and environment company based out of Florence Nightingale laan 12, UTRECHT, Utrecht, Netherlands.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceThe Hague, NetherlandsHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“The Sustainability Firm is your partner in making the world a better place.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceSchiedam, NetherlandsHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“We don't have to explain to you that sustainability is important.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceAmsterdam, NetherlandsHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“Sustainability is crucial.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceRotterdam, NetherlandsHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“We believe that true progress starts with trust, built on simplicity.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceHeiloo, NetherlandsHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“SUB | Sustainable Boost is een duurzaam adviesbureau met een enthousiast team van Impactmakers en Boosters.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 81 sustainability audit services based in the Netherlands

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Sustainability audit services based in the Netherlands at a glance

As of Sep 29, 2026
36.7%Verified-email coverage
17.5Average contacts per company
1-10Median size (employees)
19.8%Largest-city concentration · Amsterdam
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
16
51-200
1
201-500
2
1,001-5,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 81 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sustainability audit services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the Netherlands whose own description of what they do matches “sustainability audit services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sustainability audit services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among sustainability audit services, and records with no verified work email. Companies headquartered outside Netherlands are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 520 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sustainability audit services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sustainability audit services are there based in the Netherlands?

RevenueBase identified 81 sustainability audit services headquartered in the Netherlands as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Morningstar Sustainalytics, headquartered in Netherlands, tops this list with the largest team on record.

Which city has the most sustainability audit services?

Amsterdam leads with 16 headquartered companies, followed by Rotterdam (10) and Arnhem (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 520 verified decision-maker contacts tracked across these 81 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.