Company lists · Data refreshed September 2026

Top 25 Energy industry consulting firms based in the Netherlands

RevenueBase identified 542 energy industry consulting firms headquartered in the Netherlands as of September 2026 and tracks 5,310 professional contacts across them, including 1,937 with verified work emails. Amsterdam is the largest hub.

This list covers energy industry 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, 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
542Companies
5,310Contacts tracked
1,937Verified emails
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The 25 largest energy industry consulting firms based in the Netherlands

Ranked by team size
Top 25 of 542 energy industry consulting firms based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy industry 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 evidenceThe Hague, NetherlandsHQ checked Sep 21, 20261,001-5,000651 contacts →

Partial evidence

“The Energy Transition brings new challenges and opportunities to all of us.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceMaastricht, NetherlandsHQ checked Sep 21, 2026201-500234 contacts →

Partial evidence

“Als gids in de complexe energiemarkt wijst NieuweStroom je de weg naar winst.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceGouda, NetherlandsHQ checked Sep 21, 202651-200157 contacts →

Partial evidence

“DWA building services & energy consultants is a consultancy firm that offers research and consultancy services on the field of renewable energy and energy efficiency in the built…”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceUtrecht, NetherlandsHQ checked Sep 21, 202651-200110 contacts →

Indirect evidence

“Green Giraffe Advisory is the pioneering advisory arm of the Green Giraffe Group, dedicated to pushing the next frontier in finance and climate.”

Source: RevenueBase Database · checked Sep 21, 2026
5Partial evidenceAh, NetherlandsHQ checked Sep 21, 202651-200109 contacts →

Partial evidence

“Wij zijn Duurzaam Energie Perspectief, dé technisch consultants op het gebied van energiesystemen.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceAlmere, NetherlandsHQ checked Sep 21, 202651-200101 contacts →

Partial evidence

“Ventolines is a leading agency in the dynamic renewable energy market with expertise in all phases of wind, solar and storage projects: development, contracting, legal services…”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceEindhoven, NetherlandsHQ checked Sep 21, 202651-20089 contacts →

Partial evidence

“Ecorus turns large-scale energy projects into predictable energy assets.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202651-20088 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceArnhem, NetherlandsHQ checked Sep 21, 202651-20080 contacts →

Partial evidence

“At IF Technology we are committed to the transition from the use of fossil fuels to sustainable energy.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceOldenzaal, NetherlandsHQ checked Sep 21, 202651-20079 contacts →

Indirect evidence

“Geofoxx is een succesvolle dienstverlener voor milieuvraagstukken met vestigingen in Gouda, Oldenzaal en Tilburg.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 2026201-50078 contacts →

Partial evidence

“At Petrogenium, we help energy and chemical businesses operate smarter, cleaner, and more profitably: make the right products, run reliably, and grow margins : improve energy and…”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceHerveld, NetherlandsHQ checked Sep 21, 202651-20064 contacts →

Indirect evidence

“In ons werk stellen we mensen centraal.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceArnhem, NetherlandsHQ checked Sep 21, 202651-20062 contacts →

Partial evidence

“As renewable energy project consultants, we provide market parties and governments with the expertise and tools required.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202651-20060 contacts →

Partial evidence

Enerjisa Commodities B.V.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceBergen Op Zoom, NetherlandsHQ checked Sep 21, 2026201-50059 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceRotterdam, NetherlandsHQ checked Sep 21, 202651-20058 contacts →

Indirect evidence

“Trinomics B.V.”

Source: RevenueBase Database · checked Sep 21, 2026
17Strong evidenceRijswijk, NetherlandsHQ checked Sep 21, 202651-20050 contacts →

Strong evidence

“Triple specializes in consulting services and provision of staff to the energy, oil, gas, chemical, power and related processing industries.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceArnhem, NetherlandsHQ checked Sep 21, 202651-20044 contacts →

Partial evidence

“Maximizing your energy potential OutSmart is an independent team of 45 renewable energy specialists, dedicated to optimizing wind, solar, and storage projects.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202651-20044 contacts →

Partial evidence

“If you want to understand the future, think energy.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceDrachten, NetherlandsHQ checked Sep 21, 202651-20041 contacts →

Indirect evidence

“De grootste technische uitdagingen vragen om meer dan kennis.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceUtrecht, NetherlandsHQ checked Sep 21, 202611-5040 contacts →

Partial evidence

“De wereld verduurzamen, daar krijgen wij energie van.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceOosterbeek, NetherlandsHQ checked Sep 21, 202611-5035 contacts →

Partial evidence

“GreenTrust Consultancy- Changing energy GreenTrust Consultancy is specialized in many different aspects of renewable energy, providing first class results to our customers due to…”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidenceEindhoven, NetherlandsHQ checked Sep 21, 202611-5032 contacts →

Partial evidence

“HetEnergieBureau BV is een full-service adviesbureau, gericht op projecten en kansen rond duurzame ontwikkeling en energie.”

Source: RevenueBase Database · checked Sep 21, 2026
24Partial evidenceLeiden, NetherlandsHQ checked Sep 21, 202611-5032 contacts →

Partial evidence

“IX Renewables specializes in management and consultancy services for wind energy projects, both offshore wind (bottom fixed and floating) and onshore wind.”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceHoevelaken, NetherlandsHQ checked Sep 21, 202611-5031 contacts →

Partial evidence

Energieadviesbureau Hellemans Consultancy Betrouwbaar en onafhankelijk Hellemans Consultancy is al sinds 1997 actief op de energiemarkt.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 542 energy industry consulting firms based in the Netherlands

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Energy industry consulting firms based in the Netherlands at a glance

As of Sep 21, 2026
36.5%Verified-email coverage
9.8Average contacts per company
1-10Median size (employees)
7.4%Largest-city concentration · Amsterdam
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
392
11-50
112
51-200
30
201-500
4
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 542 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 energy industry 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 the Netherlands whose own description of what they do matches “energy industry 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 energy industry 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 energy industry 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 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, 1,937 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.

Energy industry consulting firms by metro

  • Energy industry consulting firms in Amsterdam40

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 energy industry 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 energy industry consulting firms are there based in the Netherlands?

RevenueBase identified 542 energy industry 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?

WTS Energy, headquartered in The Hague, tops this list with the largest team on record.

Which city has the most energy industry consulting firms?

Amsterdam leads with 40 headquartered companies, followed by Rotterdam (22) and The Hague (21).

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 1,937 verified decision-maker contacts tracked across these 542 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.