Company lists · Data refreshed September 2026

Top 23 Sustainable energy consulting firms based in Amsterdam, Netherlands

RevenueBase identified 72 sustainable energy consulting firms headquartered in Amsterdam, Netherlands as of September 2026 and tracks 792 professional contacts across them, including 328 with verified work emails. Amsterdam is the largest hub.

This list covers sustainable energy consulting firms headquartered in Amsterdam, 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 21, 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 21, 2026 86% judged on-target in blind review
72Companies
792Contacts tracked
328Verified emails
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The 23 largest sustainable energy consulting firms based in Amsterdam, Netherlands

Ranked by team size
Top 23 of 72 sustainable energy consulting firms based in Amsterdam, Netherlands, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable energy consulting firms: 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
1Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 2026201-500407 contacts →

Partial evidence

“Photon Energy Group is a group of companies with a shared mission: making clean energy, clean water and clean environments accessible to all.”

Source: RevenueBase Database · checked Sep 21, 2026
2Strong evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202651-20088 contacts →

Strong evidence

“AFS Energy is a leading intermediary operating in the sustainability and renewable energy market.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202611-5024 contacts →

Partial evidence

“Voltiq is a leading and globally active premier financial advisor in the renewable energy and energy transition space.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-1020 contacts →

Partial evidence

“Think Big Act Now helps organisations with their sustainable transition.”

Source: RevenueBase Database · checked Sep 21, 2026
5Strong evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202611-5018 contacts →

Strong evidence

“Founded in 2006, we are one of the Netherlands’ pioneering full-service energy consulting firms.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202611-5016 contacts →

Partial evidence

“Nieuwe energie uit bestaand vastgoed.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-1012 contacts →

Partial evidence

“Resourcefully heeft een integrale aanpak ontwikkeld om gebouwen, buurten en steden te helpen volledig over te schakelen op duurzame energie.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202611-5011 contacts →

Partial evidence

“GreenWise Holland is in maart 2020 ontstaan uit de samenwerking tussen Energielabel Holland en Slim energiebeheer.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-1011 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-109 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-106 contacts →

Indirect evidence

“MSG Strategies helpt organisaties om duurzaamheid te integreren in hun kernstrategie.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202611-506 contacts →

Partial evidence

“Verduurzaam uw vastgoed met Mijn Energielabel!”

Source: RevenueBase Database · checked Sep 21, 2026
13Strong evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-104 contacts →

Strong evidence

“Recruitment | Executive Search | Management Consulting Sustainability Works supports your development as a sustainability frontrunner, or as an organisation that aspires to be one.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-103 contacts →

Partial evidence

“Numard is a sustainable development company with respect for human life on a finite planet.”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“We are agile sustainability managers.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Indirect evidence

“Barnebies provides hands-on support for decision makers in business or government.”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Headstart is a consultancy company that is specialized in two markets segments: energy transition and sports and entertainment.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“IAS Group | IAS Green - Sustainability Services | IAS Blue - Rentals & Sales | IAS Special Projects - Tailored Services”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202651-2001 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
20Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202611-501 contacts →

Partial evidence

“Acrux Consultancy assists clients develop and successfully execute large capital projects in the Energy Industry.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-101 contacts →

Indirect evidence

“Van de Wetering Advies heeft ruime ervaring uw bedrijf te verduurzamen, kosten te besparen en te laten voldoen aan de wettelijke verplichtingen.”

Source: RevenueBase Database · checked Sep 21, 2026
23Strong evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-101 contacts →

Strong evidence

“The Best Journey Ever is a company based in Amsterdam, and operating globally, offering Organisational Advisory and Business Consulting in the field of Sustainability.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 23 of 72 sustainable energy consulting firms based in Amsterdam, Netherlands

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Sustainable energy consulting firms based in Amsterdam, Netherlands at a glance

As of Sep 21, 2026
41.4%Verified-email coverage
11.0Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · Amsterdam
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
56
11-50
12
51-200
3
201-500
1

Email recency for this list is measured across the whole Netherlands list rather than for Amsterdam, so it is reported there. Company counts and contact totals on this page are exact for Amsterdam, over 72 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 sustainable energy consulting firms, 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 Amsterdam, Netherlands whose own description of what they do matches “sustainable energy consulting firms”. 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 sustainable energy consulting firms), 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 sustainable energy consulting firms, and records with no verified work email. Companies headquartered outside Amsterdam 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, 328 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 21, 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.

Sustainable energy consulting firms by metro in the Netherlands

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 sustainable energy consulting firms, 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 sustainable energy consulting firms are there based in Amsterdam, Netherlands?

RevenueBase identified 72 sustainable energy consulting firms headquartered in Amsterdam, 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?

Photon Energy Group, headquartered in Amsterdam, tops this list with the largest team on record.

Which city has the most sustainable energy consulting firms?

Amsterdam leads with 72 headquartered companies, followed by Rotterdam (34) and Utrecht (32).

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 328 verified decision-maker contacts tracked across these 72 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 21, 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.