Company lists · Data refreshed September 2026

Top 25 Sustainability consulting services based in Denmark

RevenueBase identified 296 sustainability consulting services headquartered in Denmark as of September 2026 and tracks 3,555 professional contacts across them, including 252 with verified work emails. Copenhagen is the largest hub.

This list covers sustainability consulting services 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 22, 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 22, 2026 86% judged on-target in blind review
296Companies
3,555Contacts tracked
252Verified emails
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The 25 largest sustainability consulting services based in Denmark

Ranked by team size
Top 25 of 296 sustainability consulting services based in Denmark, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability consulting services: 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 evidenceHøjbjerg, DenmarkHQ checked Sep 22, 2026n/a1,176 contacts →

Indirect evidence

“Miljø er vores kernekompetence og vores ansvar.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceAalborg, DenmarkHQ checked Sep 22, 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 22, 2026
3Indirect evidenceAalborg Sv, DenmarkHQ checked Sep 22, 2026201-500214 contacts →

Indirect evidence

“Vi er Agillix.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceCopenhagen, DenmarkHQ checked Sep 22, 202651-200134 contacts →

Indirect evidence

“Our expertise is the green transition.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceCopenhagen K, DenmarkHQ checked Sep 22, 202651-200118 contacts →

Indirect evidence

“Hos AI Arkitekter & Ingeniører leverer vi helhedsbaseret totalrådgivning.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceKøbenhavn, DenmarkHQ checked Sep 22, 202611-5032 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceCharlottenlund, DenmarkHQ checked Sep 22, 202611-5029 contacts →

Indirect evidence

“Bygherrerådgivning.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceAarhus, DenmarkHQ checked Sep 22, 202611-5026 contacts →

Indirect 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 22, 2026
9Indirect evidenceCopenhagen, DenmarkHQ checked Sep 22, 202611-5024 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceCopenhagen, DenmarkHQ checked Sep 22, 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 22, 2026
11Indirect evidenceHjørring, DenmarkHQ checked Sep 22, 202611-5021 contacts →

Indirect evidence

“Erasmus & Partnere AS rådgivende ingeniører i Hjørring og Aalborg udfører teknisk rådgivning i forb.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceHjørring, DenmarkHQ checked Sep 22, 202611-5020 contacts →

Indirect evidence

“Arkitektur - Speciale i bæredygtig arkitektur, lavenergi & passivhusdesign Vi er en tegnestue med en lang historie.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceKgs. Lyngby, DenmarkHQ checked Sep 22, 202611-5018 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceRanders Nø, DenmarkHQ checked Sep 22, 202611-5018 contacts →

Indirect 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 22, 2026
15Indirect evidenceAarhus, DenmarkHQ checked Sep 22, 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 22, 2026
16Indirect evidenceIkast, DenmarkHQ checked Sep 22, 202651-20016 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceIkast, DenmarkHQ checked Sep 22, 202611-5014 contacts →

Indirect evidence

“NTEK ApS Indeklima | Ventilationsanlæg | CO2 Reduktion | Håndtering af Farligt Affald NTEK er specialiserede rådgivere inden for indeklima med en dedikation til at optimere energi…”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceCity, DenmarkHQ checked Sep 22, 202611-5014 contacts →

Indirect evidence

“D|K2 Bygherrerådgivning er en uafhængig virksomhed, der fra sine kontorer i Aarhus og København leverer landsdækkende bygherrerådgivning i forbindelse med store og mellemstore…”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceKøbenhavn N, DenmarkHQ checked Sep 22, 202611-5013 contacts →

Indirect evidence

“Econet er en uafhængig konsulentvirksomhed, der i næsten 30 år har rådgivet om miljø, affald og ressourcer.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceAarhus, DenmarkHQ checked Sep 22, 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 22, 2026
21Strong evidenceKøbenhavn K, DenmarkHQ checked Sep 22, 20261-1012 contacts →

Strong evidence

“Quercus Group is an international consulting company for sustainability based in Nairobi.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceCopenhagen, DenmarkHQ checked Sep 22, 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 22, 2026
23Indirect evidenceFrederiksberg, DenmarkHQ checked Sep 22, 202611-5011 contacts →

Indirect 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 22, 2026
24Strong evidenceAarhus, DenmarkHQ checked Sep 22, 202611-5011 contacts →

Strong 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 22, 2026
25Partial evidenceKornerup, DenmarkHQ checked Sep 22, 202611-509 contacts →

Partial evidence

“C7 Consulting A/S er industriens rådgiver indenfor hovedområderne miljø, energi, arbejdsmiljø, risiko, bæredygtighed (CSRD m.v.) og ledelsessystemer.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 296 sustainability consulting services based in Denmark

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Sustainability consulting services based in Denmark at a glance

As of Sep 22, 2026
7.1%Verified-email coverage
12.0Average contacts per company
1-10Median size (employees)
15.2%Largest-city concentration · Copenhagen
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
245
11-50
41
51-200
6
201-500
4

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 296 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 sustainability consulting services, 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 “sustainability consulting services”. 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 sustainability consulting services), 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 sustainability consulting services, 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, 252 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 22, 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.

Sustainability consulting services by metro

  • Sustainability consulting services in Copenhagen45

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 sustainability consulting services, 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 sustainability consulting services are there based in Denmark?

RevenueBase identified 296 sustainability consulting services 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?

DGE Danmark, headquartered in Hojbjerg, tops this list with the largest team on record.

Which city has the most sustainability consulting services?

Copenhagen leads with 45 headquartered companies, followed by Kobenhavn (10) and Aarhus (8).

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 252 verified decision-maker contacts tracked across these 296 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 22, 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.