Company lists · Data refreshed September 2026

Top 25 Green energy infrastructure companies based in Denmark

RevenueBase identified 108 green energy infrastructure companies headquartered in Denmark as of September 2026 and tracks 17,118 professional contacts across them, including 766 with verified work emails. Copenhagen is the largest hub.

This list covers green energy infrastructure companies headquartered in Denmark, 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 16, 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 16, 2026 86% judged on-target in blind review
108Companies
17,118Contacts tracked
766Verified emails
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The 25 largest green energy infrastructure companies based in Denmark

Ranked by team size
Top 25 of 108 green energy infrastructure companies based in Denmark, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to green energy infrastructure companies: 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 evidenceEsbjerg, DenmarkHQ checked Sep 16, 20261,001-5,0001,947 contacts →

Partial evidence

“To fulfil the vision of a fossil-free future, we need conventional and renewable energy sources to coexist effectively until the day when renewables can fully keep the world…”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceIkast, DenmarkHQ checked Sep 16, 20261,001-5,0001,423 contacts →

Indirect evidence

“KK Wind Solutions is a dedicated greentech company with more than 35 years of experience in electrical systems for wind turbines.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceSøborg, DenmarkHQ checked Sep 16, 2026501-1,000704 contacts →

Partial evidence

“European Energy develops, finances, constructs and operates onshore and offshore wind and solar farms, Power-to-X facilities and Battery Energy Storage Systems.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceHobro, DenmarkHQ checked Sep 16, 2026501-1,000579 contacts →

Partial evidence

“Eurowind Energy develops, constructs, and operates renewable energy parks.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceEsbjerg N, DenmarkHQ checked Sep 16, 2026501-1,000504 contacts →

Partial evidence

“Hos N1 er vi dem, der kæmper for at tilføre elnettet ny energi.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceSvinninge, DenmarkHQ checked Sep 16, 2026501-1,000444 contacts →

Partial evidence

“I Andel Energi leverer vi el, naturgas og energirådgivning til mere end 1,2 mio.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceKøbenhavn S, DenmarkHQ checked Sep 16, 202651-200116 contacts →

Partial evidence

“Modstrøm er Danmarks førende grønne energiselskab.”

Source: RevenueBase Database · checked Sep 16, 2026
8Strong evidenceKøbenhavn K, DenmarkHQ checked Sep 16, 202651-200115 contacts →

Strong evidence

“AIP specialises in decarbonisation and energy infrastructure investments that facilitate the energy transition in Europe and North America.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceRoskilde, DenmarkHQ checked Sep 16, 202651-20094 contacts →

Partial evidence

“We want to be a role model that contributes to accelerating the green transition.”

Source: RevenueBase Database · checked Sep 16, 2026
10Strong evidenceVedbæk, DenmarkHQ checked Sep 16, 202651-20092 contacts →

Strong evidence

“Renewable energy solutions that accelerate the energy transformation GreenGo Energy has worked since 2011 to accelerate the green transformation through a distinguished…”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceCopenhagen, DenmarkHQ checked Sep 16, 2026201-50087 contacts →

Indirect evidence

“BioCirc is a circular bioeconomic company.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceSvendborg, DenmarkHQ checked Sep 16, 202651-20067 contacts →

Partial evidence

“SEF er en energikoncern ejet af Fonden SEF.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceCopenhagen, DenmarkHQ checked Sep 16, 202611-5044 contacts →

Partial evidence

“Reel is an electricity supplier and trader accelerating the energy transition.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceVejen, DenmarkHQ checked Sep 16, 202611-5040 contacts →

Partial evidence

Energi Innovation ApS has strong proven track record in photovoltaic business, providing a full range package of project management; from development, financing, construction…”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceSpøttrup, DenmarkHQ checked Sep 16, 202611-5033 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceCopenhagen, DenmarkHQ checked Sep 16, 202611-5031 contacts →

Partial evidence

“Aegir Insights is a technology-driven intelligence company empowering renewable energy decision-makers to make smarter commercial decisions.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceFrederiksberg, DenmarkHQ checked Sep 16, 202651-20030 contacts →

Partial evidence

“E.ON i Danmark producerer og leverer fjernvarme til mindre byer, og er dermed en del af svaret på samfundets ønske om at øge andelen af grøn energi.”

Source: RevenueBase Database · checked Sep 16, 2026
18Strong evidenceSkanderborg, DenmarkHQ checked Sep 16, 202611-5028 contacts →

Strong evidence

“NISSEN energy is a manufacturer and supplier of green energy solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceCopenhagen, DenmarkHQ checked Sep 16, 202611-5027 contacts →

Indirect evidence

“Power trading of tomorrow”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceRanders, DenmarkHQ checked Sep 16, 202611-5027 contacts →

Partial evidence

“Wind Estate is one of Denmark's leading energy companies.”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceBagsværd, DenmarkHQ checked Sep 16, 202611-5022 contacts →

Partial evidence

“Grøn energi er GodEnergi.”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceVodskov, DenmarkHQ checked Sep 16, 202611-5022 contacts →

Partial evidence

“Softcontrol A/S er producent af Energy Management Systemer siden 1997 og har de seneste år udviklet det intelligente hjem – ”CleverHouse”.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceKastrup, DenmarkHQ checked Sep 16, 202611-5022 contacts →

Partial evidence

“Velkommen til b.energy - Grøn strøm som alle andre.”

Source: RevenueBase Database · checked Sep 16, 2026
24Strong evidenceCopenhagen, DenmarkHQ checked Sep 16, 202611-5021 contacts →

Strong evidence

“At Copenhagen Energy A/S we take renewable energy projects from green field to final investment decision.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceAarhus, DenmarkHQ checked Sep 16, 20261-1019 contacts →

Partial evidence

“Helios Power Trading is an energy trading company with a clear ambition.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 108 green energy infrastructure companies based in Denmark

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Green energy infrastructure companies based in Denmark at a glance

As of Sep 16, 2026
4.5%Verified-email coverage
158.5Average contacts per company
11-50Median size (employees)
9.3%Largest-city concentration · Copenhagen
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
43
11-50
42
51-200
8
201-500
4
501-1,000
5
1,001-5,000
3
5,001-10,000
2

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 108 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 green energy infrastructure companies, 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 Denmark whose own description of what they do matches “green energy infrastructure companies”. 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 green energy infrastructure companies), 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 green energy infrastructure companies, and records with no verified work email. Companies headquartered outside Denmark 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, 766 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 16, 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 green energy infrastructure companies, 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 green energy infrastructure companies are there based in Denmark?

RevenueBase identified 108 green energy infrastructure companies headquartered in Denmark 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?

Semco Maritime, headquartered in Esbjerg, tops this list with the largest team on record.

Which city has the most green energy infrastructure companies?

Copenhagen leads with 10 headquartered companies, followed by Aarhus (3) and Herning (3).

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 766 verified decision-maker contacts tracked across these 108 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 16, 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.