Company lists · Data refreshed September 2026

Top 25 Clean energy consultants based in Denmark

RevenueBase identified 183 clean energy consultants headquartered in Denmark as of September 2026 and tracks 2,598 professional contacts across them, including 195 with verified work emails. Copenhagen is the largest hub.

This list covers clean energy consultants 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
183Companies
2,598Contacts tracked
195Verified emails
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The 25 largest clean energy consultants based in Denmark

Ranked by team size
Top 25 of 183 clean energy consultants 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 clean energy consultants: 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
1Indirect evidenceAalborg, DenmarkHQ checked Sep 16, 2026201-500246 contacts →

Indirect evidence

“Since 2007, we have delivered sustainable development projects and provided advisory services within engineering, policy, economics, and social fields.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceAalborg Sv, DenmarkHQ checked Sep 16, 2026201-500214 contacts →

Indirect evidence

“Vi er Agillix.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceCopenhagen, DenmarkHQ checked Sep 16, 2026201-500135 contacts →

Indirect evidence

“CISC is a service company working exclusively for Copenhagen Infrastructure Partners (CIP).”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceCopenhagen, DenmarkHQ checked Sep 16, 202651-200134 contacts →

Indirect evidence

“Our expertise is the green transition.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceKøbenhavn S, DenmarkHQ checked Sep 16, 202651-200116 contacts →

Partial evidence

“Modstrøm er Danmarks førende grønne energiselskab.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceGive, DenmarkHQ checked Sep 16, 202651-20094 contacts →

Indirect evidence

“Navitas Wind A/S was founded in 2019 to meet the growing demand for highly qualified technicians within the wind industry.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceViby J, DenmarkHQ checked Sep 16, 2026201-50039 contacts →

Partial evidence

“We support our clients in their efforts to develop and operate energy projects that achieve the best possible return on investment.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceKøbenhavn, DenmarkHQ checked Sep 16, 202611-5032 contacts →

Partial evidence

“KOSMOS is a Cost & Carbon Management consultancy with offices in Denmark & Ireland.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceAarhus, DenmarkHQ checked Sep 16, 202611-5026 contacts →

Partial evidence

“Vi har specialiseret os i bæredygtighedsprocesser, sundt indeklima og energioptimering for at bidrage til at transformere byggeriet i en positiv retning.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceCopenhagen, DenmarkHQ checked Sep 16, 202611-5025 contacts →

Partial evidence

“MEC Intelligence (MEC+) is a strategic research and consulting firm specializing in the energy, and cleantech sectors.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceCopenhagen, DenmarkHQ checked Sep 16, 202611-5024 contacts →

Indirect evidence

“Holmsgaard a/s er en rådgivende ingeniørvirksomhed med fokus på bæredygtighed.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceBallerup, DenmarkHQ checked Sep 16, 202651-20024 contacts →

Partial evidence

“ProSolar – din solcellepartner i grøn energi Hos ProSolar er vi dedikerede til at levere innovative solcelleløsninger til både private og virksomheder.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceCopenhagen, DenmarkHQ checked Sep 16, 20261-1023 contacts →

Indirect evidence

“Improve Business - Skaber vækst og bæredygtig udvikling Vi er et landsdækkende konsulenthus specialiseret indenfor bæredygtig udvikling.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceBrabrand, DenmarkHQ checked Sep 16, 202611-5022 contacts →

Indirect evidence

“Ingeniør Huse er en rådgivnings- og konsulentvirksomhed, der tilbyder ekspertrådgivning til fjernvarme- og kølebranchen plus i nogen grad til boligforeninger og offentlige…”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial 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
16Partial evidenceCopenhagen, DenmarkHQ checked Sep 16, 202611-5021 contacts →

Partial 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
17Partial evidenceKgs. Lyngby, DenmarkHQ checked Sep 16, 202611-5018 contacts →

Partial evidence

“Fremsyn er et selvstændigt konsulenthus med speciale i grøn forretningsudvikling og rådgivning inden for energi og transport.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceRanders Nø, DenmarkHQ checked Sep 16, 202611-5018 contacts →

Partial evidence

“VOGNSEN Rådgivende Ingeniører A/S varetager alle relevante ingeniørdiscipliner inden for bygge- og anlægsområdet, og virksomheden har desuden stor erfaring med energioptimering og…”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceAarhus, DenmarkHQ checked Sep 16, 202651-20017 contacts →

Indirect evidence

“LB Consult er et rådgivende ingeniørfirma, som leverer gennemtænkt rådgivning med fokus på bæredygtighed og lavenergi.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceIkast, DenmarkHQ checked Sep 16, 202651-20016 contacts →

Partial evidence

“Det er dyrt at bruge energi, men det er spild af penge at bruge for meget energi.”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceKøbenhavn K, DenmarkHQ checked Sep 16, 202611-5014 contacts →

Partial evidence

“Hos Arnstrøm arbejder vi for at gøre grøn energi tilgængelig, intelligent og økonomisk fordelagtig – både for private boligejere og virksomheder.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceAarhus, DenmarkHQ checked Sep 16, 20261-1012 contacts →

Indirect evidence

“asent er en konsulentvirksomhed med rådgivningsydelser til forsyningssektoren og private virksomheder, med fokus på bæredygtige investeringer.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceCopenhagen, DenmarkHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

“Aaen Engineering er en rådgivende ingeniørvirksomhed med fokus på at implementere konkrete, målbare og mærkbare bæredygtighedsinitiativer i det byggede miljø.”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceFrederiksberg, DenmarkHQ checked Sep 16, 202611-5011 contacts →

Partial evidence

“SINUZ er et rådgivende ingeniørfirma, der har specialiseret sig i tekniske installationer, energi og indeklima med fokus på bæredygtige og miljøvenlige løsninger.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceAarhus, DenmarkHQ checked Sep 16, 202611-5011 contacts →

Partial evidence

“We a global business and sustainability consulting firm that exists to further the fight against climate change by transforming the energy systems of our globe.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 183 clean energy consultants based in Denmark

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Clean energy consultants based in Denmark at a glance

As of Sep 16, 2026
7.5%Verified-email coverage
14.2Average contacts per company
1-10Median size (employees)
15.3%Largest-city concentration · Copenhagen
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
129
11-50
34
51-200
12
201-500
8

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 183 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 clean energy consultants, 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 “clean energy consultants”. 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 clean energy consultants), 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 clean energy consultants, 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, 195 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.

Clean energy consultants by metro

  • Clean energy consultants in Copenhagen28

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 clean energy consultants, 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 clean energy consultants are there based in Denmark?

RevenueBase identified 183 clean energy consultants 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?

NTU International A S, headquartered in Aalborg, tops this list with the largest team on record.

Which city has the most clean energy consultants?

Copenhagen leads with 28 headquartered companies, followed by Aarhus (7) and Kobenhavn (7).

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 195 verified decision-maker contacts tracked across these 183 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.