Company lists · Data refreshed October 2026

Top 25 Clean energy service companies based in Denmark

Name: Clean energy service companies based in Denmark
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 186 companies tracked

RevenueBase identified 186 company matches for clean energy service companies associated with Denmark as of October 2026 and tracks 36,600 professional contacts across them, including 2,545 with verified work emails. Copenhagen is the largest hub.

This list covers company matches for clean energy service companies associated with Denmark, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 9, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 9, 2026 How this list was built

186Companies

36,600Contacts tracked

2,545Verified emails

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The 25 largest clean energy service companies based in Denmark

Ranked by team size

Top 25 of 186 company matches for clean energy service companies based in Denmark, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Vestas	Exact match	Aarhus, DenmarkHQ recorded Oct 9, 2026	10001+	27,666 contacts →
	Exact match “Vestas is the energy industry’s global partner on sustainable energy solutions.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	Muehlhan Wind Service	Exact match	Fredericia, DenmarkHQ recorded Oct 9, 2026	1,001-5,000	1,602 contacts →
	Exact match “Muehlhan Wind Service is a leading full-scope independent service provider delivering wind turbine installation and Operations & Maintenance solutions to wind energy clients in…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Fairwind	Exact match	Vejle, DenmarkHQ recorded Oct 9, 2026	1,001-5,000	1,298 contacts →
	Exact match “FairWind is a leading provider of one-stop solutions for the installation and service of onshore and offshore wind turbines throughout the world, having worked in more than 40…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	KK Wind Solutions	Exact match	Ikast, DenmarkHQ recorded Oct 9, 2026	1,001-5,000	886 contacts →
	Exact match “KK Wind Solutions is a dedicated greentech company with more than 35 years of experience in electrical systems for wind turbines.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Flex Wind	Exact match	Vejle, DenmarkHQ recorded Oct 9, 2026	501-1,000	657 contacts →
	Exact match “Flex Wind began as a company focused on wind turbine installation.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Swire Renewable Energy	Exact match	Aarhus, DenmarkHQ recorded Oct 9, 2026	201-500	519 contacts →
	Exact match “Leading global renewable energy inspection, repair and maintenance service provider for wind turbine manufacturers and wind farm owners, providing services and expertise to all…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Aura Energi	Exact match	Viby, DenmarkHQ recorded Oct 9, 2026	201-500	215 contacts →
	Exact match “AURA Energi er et konkurrencedygtigt energiselskab med 300 medarbejdere og en omsætning på DKK 780 mio.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Modstrøm Danmark A S	Exact match	København S, DenmarkHQ recorded Oct 9, 2026	51-200	112 contacts →
	Exact match “Modstrøm er Danmarks førende grønne energiselskab.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Navitas Renewables	Exact match	Give, DenmarkHQ recorded Oct 9, 2026	51-200	95 contacts →
	Exact match “Navitas Wind A/S was founded in 2019 to meet the growing demand for highly qualified technicians within the wind industry.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	Poul Sejr Nielsen A S	Exact match	Birkerød, DenmarkHQ recorded Oct 9, 2026	201-500	90 contacts →
	Exact match “Poul Sejr Nielsen A/S er en af Nordsjællands største energientreprenører.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	JGH Group	Exact match	Copenhagen S, DenmarkHQ recorded Oct 9, 2026	11-50	88 contacts →
	Exact match “For more than 60 years JGH Group has provided cost efficient and customized solutions to our clients all over the world.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Copenhagen Infrastructure Service CO	Exact match	Copenhagen, DenmarkHQ recorded Oct 9, 2026	201-500	66 contacts →
	Exact match “CISC is a service company working exclusively for Copenhagen Infrastructure Partners (CIP).” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Techem	Exact match	Århus, DenmarkHQ recorded Oct 9, 2026	51-200	49 contacts →
	Exact match “Allocation and tecnical installation within the field of energy” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Energi Innovation APS	Exact match	Vejen, DenmarkHQ recorded Oct 9, 2026	11-50	38 contacts →
	Exact match “Energi Innovation ApS has strong proven track record in photovoltaic business, providing a full range package of project management; from development, financing, construction…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	Stenger & Ibsen Construction	Exact match	Spøttrup, DenmarkHQ recorded Oct 9, 2026	11-50	37 contacts →
	Exact match “With over 30 years in the renewable energy industry and a portfolio of more than 2,500 casted onshore foundations, SIC has developed specialized expertise and know-how.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Demskov EL & Demskov Grøn	Exact match	Rødovre, DenmarkHQ recorded Oct 9, 2026	51-200	35 contacts →
	Exact match “DEMSKOV-EL & Demskov Grøn er en autoriseret el-installatør.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	fairpris.dk	Exact match	København S, DenmarkHQ recorded Oct 9, 2026	11-50	32 contacts →
	Exact match “Fairpris er danskernes bedste alternativ til økonomiske energikilder – leveret, monteret og installeret hos kunden selv.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Elektriker Løsningen APS	Exact match	Rousthøje, DenmarkHQ recorded Oct 9, 2026	51-200	31 contacts →
	Exact match “Elektriker Løsningen ApS blev dannet i 2003 og drives i dag af Peter Breum, Tommy Knudsen, Steffen Wennick og Jon Ljungstrøm.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Olesen & Jensen A S	Exact match	Esbjerg, DenmarkHQ recorded Oct 9, 2026	51-200	25 contacts →
	Exact match “Olesen & Jensen A/S er med over 90 års erfaring et godt fundament for et langvarigt samarbejde.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Softcontrol A S	Exact match	Vodskov, DenmarkHQ recorded Oct 9, 2026	11-50	24 contacts →
	Exact match “Softcontrol A/S er producent af Energy Management Systemer siden 1997 og har de seneste år udviklet det intelligente hjem – ”CleverHouse”.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Phønix TAG Århus A S	Exact match	Hadsten, DenmarkHQ recorded Oct 9, 2026	11-50	24 contacts →
	Exact match “Phønix Tag Århus A/S udfører tagpapløsninger til nye bygninger, komplette tagrenoveringer, og foretager store og små reparationer på tagpaptage.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	JK A S	Exact match	Glamsbjerg, DenmarkHQ recorded Oct 9, 2026	51-200	24 contacts →
	Exact match “JK+ er en teknik-installatør med flere stærke kompetencer, alle sammen samlet under ét og samme tag.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	John Drejer A S	Exact match	Randers, DenmarkHQ recorded Oct 9, 2026	11-50	16 contacts →
	Exact match “John Drejer A/S is an electrical/electronic manufacturing company based out of 10 Alsikevej, Randers, Central Denmark Region, Denmark.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Solarfuture APS	Exact match	Albertslund, DenmarkHQ recorded Oct 9, 2026	11-50	16 contacts →
	Exact match “SolarFuture er en højt specialiseret rådgivnings, montage og driftsvirksomhed indenfor større anlæg af solceller til industri og erhverv i Danmark og Skandinavien.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Arnstrøm	Exact match	København K, DenmarkHQ recorded Oct 9, 2026	11-50	15 contacts →
	Exact match “Hos Arnstrøm arbejder vi for at gøre grøn energi tilgængelig, intelligent og økonomisk fordelagtig – både for private boligejere og virksomheder.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “clean energy service companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 186 clean energy service companies based in Denmark

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Clean energy service companies based in Denmark at a glance

As of Oct 9, 2026

7.0%Verified-email coverage

196.8Average contacts per company

11-50Median size (employees)

7.5%Largest-city concentration · Copenhagen

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for Denmark, so it is reported there. Company counts and contact totals on this page are exact for Denmark, over 186 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Denmark whose business descriptions match “clean energy service companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,545 professional contacts with verified work emails across the full matched dataset. 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 October 9, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “clean energy service companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clean energy service companies are there based in Denmark?

RevenueBase identified 186 company matches for clean energy service companies associated with Denmark as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Vestas tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most clean energy service companies?

Copenhagen leads with 14 company records, followed by Ikast (4) and Central (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,545 professional contacts with verified work emails tracked across these 186 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 9, 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.