Company lists · Data refreshed September 2026

Top 25 Net zero strategy consultancies based in the Netherlands

RevenueBase identified 130 net zero strategy consultancies headquartered in the Netherlands as of September 2026 and tracks 950 professional contacts across them, including 503 with verified work emails. Amsterdam is the largest hub.

This list covers net zero strategy consultancies 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
130Companies
950Contacts tracked
503Verified emails
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The 25 largest net zero strategy consultancies based in the Netherlands

Ranked by team size
Top 25 of 130 net zero strategy consultancies 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 net zero strategy consultancies: 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
1Strong evidenceAmsterdam, NetherlandsHQ checked Sep 29, 202651-200123 contacts →

Strong evidence

“OTC Flow is your partner in achieving net zero emissions, providing customized solutions for your financial-environmental obligations and aspirations.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceHerveld, NetherlandsHQ checked Sep 29, 202651-20064 contacts →

Indirect evidence

“In ons werk stellen we mensen centraal.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceRotterdam, NetherlandsHQ checked Sep 29, 202651-20051 contacts →

Indirect evidence

“At AllChiefs, we guide organisations to become leaders of change.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceRotterdam, NetherlandsHQ checked Sep 29, 202611-5050 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceRotterdam, NetherlandsHQ checked Sep 29, 202611-5041 contacts →

Indirect evidence

“The clock is ticking.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceUtrecht, NetherlandsHQ checked Sep 29, 20261,001-5,00039 contacts →

Indirect evidence

“Wij zijn Anthesis Nederland, voorheen Climate Neutral Group.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 29, 202611-5029 contacts →

Indirect evidence

“Our mission is to guide organizations in their transition to sustainable, socially responsible, and well-governed business practices.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceHilversum, NetherlandsHQ checked Sep 29, 202611-5027 contacts →

Indirect evidence

“Wij geloven dat duurzame verandering ontstaat wanneer inhoud en intentie samenkomen.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceUtrecht, NetherlandsHQ checked Sep 29, 202651-20027 contacts →

Indirect evidence

“Ecofys, a Navigant company, is a leading international energy and climate consultancy focused on sustainable energy for everyone.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceUtrecht, NetherlandsHQ checked Sep 29, 202611-5025 contacts →

Indirect evidence

“We-Boost maakt door middel van advies en slimme oplossingen de gebouwde omgeving duurzamer, efficiënter en innovatiever.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceUtrecht, NetherlandsHQ checked Sep 29, 202611-5021 contacts →

Partial evidence

“NewForesight is a strategy consulting firm that drives the transition to a sustainable economy.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceHeerenveen, NetherlandsHQ checked Sep 29, 20261-1017 contacts →

Indirect evidence

“De wereld verandert en verlangt een lagere footprint van iedereen.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceUtrecht, NetherlandsHQ checked Sep 29, 202611-5016 contacts →

Indirect evidence

“SQ Consult is an independent consultancy dedicated to supporting its clients in meeting the challenges of climate change and energy transition.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceZeist, NetherlandsHQ checked Sep 29, 202611-5015 contacts →

Indirect evidence

“ESP Renewables is a broad group of passionate experts, excited to support with renewable projects.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceUtrecht, NetherlandsHQ checked Sep 29, 202611-5015 contacts →

Indirect evidence

“YoungProfs is a consultancy firm that helps organisations with the transition to a sustainable and future-proof society.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceTilburg, NetherlandsHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“Wij helpen onze klanten met het neerzetten en uitvoeren van een duurzame groeistrategie.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceAmsterdam, NetherlandsHQ checked Sep 29, 202611-5013 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 29, 2026
18Indirect 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
19Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 20261-1011 contacts →

Indirect evidence

“Creating good growth for organizations around the globe through the implementation of situation-specific sustainability solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceDoorn, NetherlandsHQ checked Sep 29, 20261-1011 contacts →

Indirect evidence

“AMPARE levert adviesdiensten aan bedrijven en overheden, met een duidelijke focus op het succesvol opzetten en realiseren van duurzame business, en hernieuwbare energie…”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceNetherlandsHQ checked Sep 29, 20261-1010 contacts →

Partial evidence

“Kalavasta is a strategy consultancy which aims to uncover and advance transitions to sustainable equilibria.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceNieuwkoop, NetherlandsHQ checked Sep 29, 20261-1010 contacts →

Indirect evidence

“At Greenhouse Sustainability, environmental footprint Calculation, Reduction, Offsetting and Storytelling come together and we help you towards a sustainable future.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect 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
24Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 20261-1010 contacts →

Indirect evidence

“CarbonLeap is a European carbon insetting firm and independent provider of verified Scope 1 and Scope 3 transport emissions reductions.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceUtrecht, NetherlandsHQ checked Sep 29, 20261-109 contacts →

Indirect evidence

“We are goodberries: the sustainable advisory boutique for finance & business, located in Utrecht, the Netherlands.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 130 net zero strategy consultancies based in the Netherlands

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Net zero strategy consultancies based in the Netherlands at a glance

As of Sep 29, 2026
52.9%Verified-email coverage
7.3Average contacts per company
1-10Median size (employees)
13.8%Largest-city concentration · Amsterdam
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
101
11-50
18
51-200
6
201-500
1
501-1,000
1
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 130 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 net zero strategy consultancies, 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 “net zero strategy consultancies”. 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 net zero strategy consultancies), 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 net zero strategy consultancies, 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, 503 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 net zero strategy consultancies, 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 net zero strategy consultancies are there based in the Netherlands?

RevenueBase identified 130 net zero strategy consultancies 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?

OTC Flow, headquartered in Amsterdam, tops this list with the largest team on record.

Which city has the most net zero strategy consultancies?

Amsterdam leads with 18 headquartered companies, followed by Utrecht (11) and Rotterdam (7).

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 503 verified decision-maker contacts tracked across these 130 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.