Company lists · Data refreshed September 2026
Top 25 Net zero consulting firms based in the Netherlands
RevenueBase identified 163 net zero consulting firms headquartered in the Netherlands as of September 2026 and tracks 1,783 professional contacts across them, including 961 with verified work emails and 176 with mobile numbers. Amsterdam is the largest hub.
This list covers net zero consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
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.
The 25 largest net zero consulting firms based in the Netherlands
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 556 | ||||
“As the leading environmental solutions partner for organizations globally, ACT helps its partners meet increasing environmental action and disclosure expectations from regulators…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 123 | ||||
“OTC Flow is your partner in achieving net zero emissions, providing customized solutions for your financial-environmental obligations and aspirations.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 51 | ||||
“At AllChiefs, we guide organisations to become leaders of change.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 50 | ||||
“Nexio Projects is an international consultancy firm, helping organisations reach their sustainability ambitions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 41 | ||||
“The clock is ticking.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 39 | ||||
“Wij zijn Anthesis Nederland, voorheen Climate Neutral Group.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 33 | ||||
“Label-up maakt verduurzaming haalbaar en eenvoudig.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 29 | ||||
“Our mission is to guide organizations in their transition to sustainable, socially responsible, and well-governed business practices.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 28 | ||||
“BlueTerra Energy Experts is een specialistisch en onafhankelijk energieadviesbureau voor de industrie en grootzakelijke markt.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 27 | ||||
“Wij geloven dat duurzame verandering ontstaat wanneer inhoud en intentie samenkomen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 27 | ||||
“Ecofys, a Navigant company, is a leading international energy and climate consultancy focused on sustainable energy for everyone.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | We-BoostIndirect evidence | 25 | |||
“We-Boost maakt door middel van advies en slimme oplossingen de gebouwde omgeving duurzamer, efficiënter en innovatiever.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 21 | ||||
“NewForesight is a strategy consulting firm that drives the transition to a sustainable economy.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 | ||||
“Ecomatters is a sustainability consultancy that works closely with corporate and governmental clients to address their sustainability challenges.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 | ||||
“Regreener empowers ambitious companies to take meaningful climate action.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 | ||||
“De wereld verandert en verlangt een lagere footprint van iedereen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 17 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 | ||||
“SQ Consult is an independent consultancy dedicated to supporting its clients in meeting the challenges of climate change and energy transition.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 | ||||
“New Impulse For Energy!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | QuintelPartial evidence | 13 | |||
“Quintel is an Energy Modelling, Strategy and Research firm that assists both central and local government, energy companies, consulting firms, institutions and NGO's around the…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | Good Growth CollectiveIndirect evidence | 11 | |||
“Creating good growth for organizations around the globe through the implementation of situation-specific sustainability solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Greenhouse SustainabilityIndirect evidence | 10 | |||
“At Greenhouse Sustainability, environmental footprint Calculation, Reduction, Offsetting and Storytelling come together and we help you towards a sustainable future.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 10 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 10 | ||||
“CarbonLeap is a European carbon insetting firm and independent provider of verified Scope 1 and Scope 3 transport emissions reductions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 163 net zero consulting firms based in the Netherlands
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Net zero consulting firms based in the Netherlands at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 net zero consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “net zero consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among net zero consulting firms, 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 an evidence 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, 961 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 5, 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.
Net zero consulting firms by metro
- Net zero consulting firms in Amsterdam28
Frequently asked
How many net zero consulting firms are there based in the Netherlands?
RevenueBase identified 163 net zero consulting firms 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?
ACT Group, headquartered in Amsterdam, tops this list with the largest team on record.
Which city has the most net zero consulting firms?
Amsterdam leads with 28 headquartered companies, followed by Utrecht (13) and Rotterdam (9).
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 961 verified decision-maker contacts tracked across these 163 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 5, 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.
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