Company lists · Data refreshed August 2026

Top 25 Clean energy consultancy companies based in Denmark

RevenueBase identified 249 clean energy consultancy companies headquartered in Denmark as of August 2026 and tracks 2,786 professional contacts across them, including 226 with verified work emails and 78 with mobile numbers. Copenhagen is the largest hub.

This list covers clean energy consultancy 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review
249Companies
2,786Contacts tracked
226Verified emails
78Mobile numbers
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The 25 largest clean energy consultancy companies based in Denmark

Ranked by team size
Top 25 of 249 clean energy consultancy companies based in Denmark, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy consultancy 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 evidenceSvinninge, Denmark501-1,000443 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
2Indirect evidenceKobenhavn, Denmark201-500239 contacts →

Indirect evidence

“Since 1967, ISC has been an active part of the development of Denmark and the world.”

Source: RevenueBase Database · checked Aug 31, 2026
3Indirect evidenceCentral, Denmark201-500214 contacts →

Indirect evidence

“Vi er Agillix.”

Source: RevenueBase Database · checked Aug 31, 2026
4Strong evidenceVejle, Denmark51-200175 contacts →

Strong evidence

“Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.”

Source: RevenueBase Database · checked Aug 31, 2026
5Indirect evidenceCopenhagen, Denmark201-500134 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
6Partial evidenceKobenhavn S, Denmark51-200117 contacts →

Partial evidence

“Modstrøm er Danmarks førende grønne energiselskab.”

Source: RevenueBase Database · checked Aug 31, 2026
7Indirect evidenceRoskilde Roskilde, Denmark51-20095 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
8Indirect evidenceHjorring, Denmark51-20047 contacts →

Indirect evidence

“Brix & Kamp er en af Danmarks ældste rådgivende ingeniørvirksomheder med rødder tilbage til 1930´erne.”

Source: RevenueBase Database · checked Aug 31, 2026
9Indirect evidenceCopenhagen, Denmark11-5044 contacts →

Indirect evidence

“Professional advice for sustainable development: Since 1989 NCG Denmark has contributed to global development by delivering high-quality advisory services to multilateral…”

Source: RevenueBase Database · checked Aug 31, 2026
10Partial evidenceViby J, Denmark201-50040 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 Aug 31, 2026
11Partial evidenceDenmark11-5032 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
12Partial evidenceAarhus, Denmark11-5025 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 Aug 31, 2026
13Indirect evidenceCopenhagen, Denmark11-5024 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
14Partial evidenceBallerup, Denmark51-20024 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 Aug 31, 2026
15Indirect evidenceKobenhavn O, Denmark11-5022 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 Aug 31, 2026
16Partial evidenceCopenhagen, Denmark11-5021 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
17Partial evidenceKgs. Lyngby, Denmark11-5018 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
18Partial evidenceRanders No, Denmark11-5018 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 Aug 31, 2026
19Indirect evidenceKolding, Denmark51-20017 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
20Partial evidenceIkast, Denmark51-20016 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Aug 31, 2026
21Partial evidenceAarhus C, Denmark11-5014 contacts →

Partial evidence

“Delta Wind Partners, a Danish consultancy and advisory firm operating in the global wind business, was founded with the vision to provide in-depth operational experience and…”

Source: RevenueBase Database · checked Aug 31, 2026
22Partial evidenceKobenhavn K, Denmark11-5014 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 Aug 31, 2026
23Indirect evidenceCopenhagen, Denmark11-5011 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 Aug 31, 2026
24Partial evidenceFrederiksberg, Denmark11-5011 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 Aug 31, 2026
25Partial evidenceAarhus Central, Denmark11-5011 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 Aug 31, 2026

Showing 25 of 249 clean energy consultancy companies based in Denmark

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Clean energy consultancy companies based in Denmark at a glance

As of Aug 31, 2026
8.1%Verified-email coverage
2.8%Mobile-number coverage
11.2Average contacts per company
1-10Median size (employees)
13.3%Largest-city concentration · Copenhagen
Aug 31, 2026Page data refreshed

Companies by employee count

1-10
187
11-50
43
51-200
11
201-500
6
501-1,000
1

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 consultancy 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 “clean energy consultancy 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 clean energy consultancy 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 clean energy consultancy 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, 226 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 August 31, 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 consultancy companies by metro

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 consultancy 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 clean energy consultancy companies are there based in Denmark?

RevenueBase identified 249 clean energy consultancy companies headquartered in Denmark as of August 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?

Andel Energi, headquartered in Svinninge, tops this list with the largest team on record.

Which city has the most clean energy consultancy companies?

Copenhagen leads with 33 headquartered companies, followed by Aarhus (11) and Aarhus Central (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 226 verified decision-maker contacts tracked across these 249 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.