Company lists · Data verified August 2026

Top 25 Clean energy consultancy companies based in the Netherlands

Name: Clean energy consultancy companies based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,149 companies tracked

There are 1,149 clean energy consultancy companies headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 8,941 professional contacts across them, including 3,693 with verified work emails and 764 with mobile numbers. Amsterdam is the largest hub.

This list covers clean energy consultancy companies headquartered in the Netherlands, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

1,149Companies

8,941Contacts tracked

3,693Verified emails

764Mobile numbers

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The 25 largest clean energy consultancy companies based in the Netherlands

Ranked by team size

Top 25 of 1,149 clean energy consultancy companies based in the Netherlands, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Energiewacht	Ca	1,001-5,000	433	266
2	Groendus	Utrecht	51-200	196	121
3	Wave International	Rotterdam	201-500	191	128
4	Adviesbureau DWA	Rijssen	51-200	156	98
5	JD Ross Energy	Bt	201-500	138	47
6	Viegand Maagøe	Ax	51-200	133	4
7	CENSO	Nieuwegein	51-200	115	83
8	Green Giraffe Advisory	Cb	51-200	114	51
9	Duurzaam Energie Perspectief	Ah	51-200	109	64
10	Ventolines	Almere	51-200	101	75
11	Delta Energie	Eh	51-200	97	61
12	flux.partners	Xn	51-200	92	68
13	Nextenergy	Utrecht	51-200	91	63
14	AFS Energy	Amsterdam	51-200	85	24
15	Winst UIT JE Woning	Ma	51-200	82	29
16	IF Technology	Arnhem	51-200	79	56
17	Petrogenium	Amsterdam	201-500	79	53
18	Hinicio	n/a	51-200	76	39
19	Anexo Energy	Poeldijk	51-200	69	47
20	Energyprofs	Herveld	51-200	65	45
21	Pondera	Arnhem	51-200	65	35
22	IVER	Stiens	51-200	49	32
23	OXXIO	Rotterdam	51-200	45	2
24	LEK Habo	Em	51-200	44	25
25	Outsmart	Arnhem	51-200	44	24

Showing 25 of 1,149 clean energy consultancy companies based in the Netherlands

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Clean energy consultancy companies based in the Netherlands at a glance

As of Aug 28, 2026

1-10Median size (employees)

AmsterdamLargest hub · 85 HQs

764Contacts with mobile numbers

25Emails re-verified in last 30 days

Companies by employee count

1-10

831

11-50

241

51-200

201-500

501-1,000

1,001-5,000

Clean energy consultancy companies by metro

Metro	Companies
Clean energy consultancy companies in Amsterdam	85
Clean energy consultancy companies in Rotterdam	42
Clean energy consultancy companies in Utrecht	40
Clean energy consultancy companies in Arnhem	22
Clean energy consultancy companies in The Hague	19
Clean energy consultancy companies in S-Hertogenbosch	13
Clean energy consultancy companies in Eindhoven	10

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “clean energy consultancy companies”, with match quality audited by blind human judging, and headquartered in the Netherlands.
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: Contact records re-verify on a rolling cadence; 25 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many clean energy consultancy companies are there based in the Netherlands?

There are 1,149 clean energy consultancy companies headquartered in the Netherlands as of August 2026 (RevenueBase).

What is the largest company on this list?

Energiewacht, headquartered in Ca, tops this list with the largest team on record.

Which city has the most clean energy consultancy companies?

Amsterdam leads with 85 headquartered companies, followed by Rotterdam (42) and Utrecht (40).

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 3,693 verified decision-maker contacts tracked across these 1,149 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.