Company lists · Data refreshed September 2026

Top 25 Sustainable IT consulting firms based in Denmark

RevenueBase identified 170 sustainable IT consulting firms headquartered in Denmark as of September 2026 and tracks 4,355 professional contacts across them, including 167 with verified work emails and 129 with mobile numbers. Copenhagen is the largest hub.

This list covers sustainable IT consulting firms 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 6, 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 6, 2026 86% judged on-target in blind review
170Companies
4,355Contacts tracked
167Verified emails
129Mobile numbers
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The 25 largest sustainable IT consulting firms based in Denmark

Ranked by team size
Top 25 of 170 sustainable IT consulting firms based in Denmark, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable IT consulting firms: 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 evidenceHellerup, DenmarkHQ checked Sep 6, 20261,001-5,0001,681 contacts →

“How can organisations become truly fit for humans and fit for the future?”

Source: company website · checked Sep 6, 2026
2Indirect evidenceHøjbjerg, DenmarkHQ checked Sep 6, 2026n/a1,176 contacts →

“Miljø er vores kernekompetence og vores ansvar.”

Source: company website · checked Sep 6, 2026
3Partial evidenceAalborg, DenmarkHQ checked Sep 6, 2026201-500246 contacts →

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

Source: company website · checked Sep 6, 2026
4Indirect evidenceCopenhagen, DenmarkHQ checked Sep 6, 202651-200134 contacts →

“Our expertise is the green transition.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceSkovlunde, DenmarkHQ checked Sep 6, 202651-20048 contacts →

“ADmire udspringer af en ambition om at udfordre det bestående.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceAarhus, DenmarkHQ checked Sep 6, 202611-5026 contacts →

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

Source: company website · checked Sep 6, 2026
7Indirect evidenceCopenhagen, DenmarkHQ checked Sep 6, 202611-5024 contacts →

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

Source: company website · checked Sep 6, 2026
8Indirect evidenceCopenhagen, DenmarkHQ checked Sep 6, 20261-1023 contacts →

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

Source: company website · checked Sep 6, 2026
9Indirect evidenceHjørring, DenmarkHQ checked Sep 6, 202611-5020 contacts →

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

Source: company website · checked Sep 6, 2026
10Indirect evidenceKgs. Lyngby, DenmarkHQ checked Sep 6, 202611-5018 contacts →

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

Source: company website · checked Sep 6, 2026
11Strong evidenceKøbenhavn K, DenmarkHQ checked Sep 6, 20261-1012 contacts →

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

Source: company website · checked Sep 6, 2026
12Indirect evidenceCopenhagen, DenmarkHQ checked Sep 6, 202611-5011 contacts →

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

Source: company website · checked Sep 6, 2026
13Strong evidenceAarhus, DenmarkHQ checked Sep 6, 202611-5011 contacts →

“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: company website · checked Sep 6, 2026
14Partial evidenceSøborg, DenmarkHQ checked Sep 6, 20261-108 contacts →

“Strategic and sustainable environmental consultancy (demolition, environmental remediation, circular economy, waste, land and resources)”

Source: company website · checked Sep 6, 2026
15Partial evidenceHillerød, DenmarkHQ checked Sep 6, 20261-108 contacts →

“ITGuy er en IT-konsulentvirksomhed indenfor opsætning, support/fejlfinding, optimering/vedligeholdelse, design, drift, backup, analyse og implementering.”

Source: company website · checked Sep 6, 2026
16Partial evidenceKolding, DenmarkHQ checked Sep 6, 20261-107 contacts →

“At BTP Our vision is to help you create sustainable business – through people and our mission is to enable your full potential.”

Source: company website · checked Sep 6, 2026
17Partial evidenceHerning, DenmarkHQ checked Sep 6, 20261-106 contacts →

“We specialize in providing professional firesafety consulting for both large and small projects.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceRoskilde, DenmarkHQ checked Sep 6, 20261-106 contacts →
Source: company website · checked Sep 6, 2026
19Partial evidenceCopenhagen, DenmarkHQ checked Sep 6, 202611-506 contacts →

“For a decade we’ve worked as a sustainable idea factory using data, business strategy, and our extensive expertise in sustainability to turn sustainable ideas into reality.”

Source: company website · checked Sep 6, 2026
20Indirect evidenceRoskilde, DenmarkHQ checked Sep 6, 20261-105 contacts →

“Hos CoreHome tilbyder vi design og rådgivning af klimavenligt og bæredygtigt byggeri.”

Source: company website · checked Sep 6, 2026
21Partial evidenceAarhus, DenmarkHQ checked Sep 6, 20261-105 contacts →

“At Worldperfect, we work with sustainability as a tool for innovation.”

Source: company website · checked Sep 6, 2026
22Strong evidenceLystrup, DenmarkHQ checked Sep 6, 20261-104 contacts →

“At Sustainor, we combine many years of sustainability consulting experience with a user-friendly digital platform that not only ensures ESG compliance but also helps you create…”

Source: company website · checked Sep 6, 2026
23Partial evidenceAarhus, DenmarkHQ checked Sep 6, 20261-104 contacts →

“The purpose of Rethink Event is to offer sustainable solutions and relations, which gives your events a sustainable profile.”

Source: company website · checked Sep 6, 2026
24Partial evidenceCopenhagen, DenmarkHQ checked Sep 6, 20261-104 contacts →

“We provide advice on responsible growth and value creation, including via M&A, assuring sustainability standards, compliance and lasting social impact by design in the process.”

Source: company website · checked Sep 6, 2026
25Partial evidenceCopenhagen, DenmarkHQ checked Sep 6, 20261-104 contacts →

“Unlock the Unstoppable Potential of Sustainability in Your Business!”

Source: company website · checked Sep 6, 2026

Showing 25 of 170 sustainable IT consulting firms based in Denmark

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Sustainable IT consulting firms based in Denmark at a glance

As of Sep 6, 2026
3.8%Verified-email coverage
3.0%Mobile-number coverage
25.6Average contacts per company
1-10Median size (employees)
15.9%Largest-city concentration · Copenhagen
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
141
11-50
21
51-200
4
201-500
3
1,001-5,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 sustainable IT consulting firms, 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 “sustainable IT consulting firms”. 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 sustainable IT consulting firms), 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 sustainable IT consulting firms, 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, 167 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 6, 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.

Sustainable IT consulting firms by metro

  • Sustainable IT consulting firms in Copenhagen27

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 sustainable IT consulting firms, 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 sustainable IT consulting firms are there based in Denmark?

RevenueBase identified 170 sustainable IT consulting firms 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?

Implement Consulting Group, headquartered in Copenhagen, tops this list with the largest team on record.

Which city has the most sustainable IT consulting firms?

Copenhagen leads with 27 headquartered companies, followed by Aalborg (5) and Aarhus Central (5).

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 167 verified decision-maker contacts tracked across these 170 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 6, 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.