Company lists · Data verified August 2026

Top 25 Clean energy consulting firms based in Denmark

Name: Clean energy consulting firms based in Denmark
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 228 companies tracked

There are 228 clean energy consulting firms headquartered in Denmark (RevenueBase, August 2026). RevenueBase tracks 2,194 professional contacts across them, including 181 with verified work emails and 71 with mobile numbers. Copenhagen is the largest hub.

This list covers clean energy consulting firms headquartered in Denmark, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

228Companies

2,194Contacts tracked

181Verified emails

71Mobile numbers

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The 25 largest clean energy consulting firms based in Denmark

Ranked by team size

Top 25 of 228 clean energy consulting firms based in Denmark, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	ISC Consulting Engineers	Kobenhavn	201-500	239	5
2	Agillix	Central	201-500	214	1
3	Wood Thilsted	Vejle	51-200	175	1
4	Copenhagen Infrastructure Service CO	Copenhagen	201-500	134	1
5	Modstrøm Danmark A S	Kobenhavn S	51-200	117	12
6	Navitas Renewables	n/a	51-200	93	2
7	Cetec Energy	Esbjerg Of Southern	51-200	53	1
8	K2 Management	Viby J	201-500	40	2
9	Kosmos	n/a	11-50	32	25
10	Ekolab APS	Aarhus	11-50	25	1
11	Holmsgaard A S Rådgivende Ingeniører FRI	Copenhagen	11-50	24	4
12	Prosolar APS	Ballerup	51-200	24	3
13	Ingeniør Huse A S	Kobenhavn O	11-50	22	14
14	Copenhagen Energy	Copenhagen	11-50	21	2
15	Fremsyn A S	Kgs. Lyngby	11-50	18	2
16	Vognsen Rådgivende Ingeniører A S	Randers No	11-50	18	1
17	LB Consult	Kolding	51-200	17	2
18	Scanenergi A S	Ikast	51-200	16	1
19	Delta Wind Partners	Aarhus C	11-50	14	7
20	Arnstrøm	Kobenhavn K	11-50	14	7
21	Aaen Engineering	Copenhagen	11-50	11	10
22	ASENT	Aarhus	1-10	11	4
23	SINUZ	Frederiksberg	11-50	11	2
24	Brinckmann Group	Aarhus Central	11-50	11	1
25	Solplus A S - Solceller	Middelfart	1-10	6	2

Showing 25 of 228 clean energy consulting firms based in Denmark

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Clean energy consulting firms based in Denmark at a glance

As of Aug 28, 2026

1-10Median size (employees)

CopenhagenLargest hub · 29 HQs

71Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

178

11-50

51-200

201-500

Clean energy consulting firms by metro

Metro	Companies
Clean energy consulting firms in Copenhagen	29
Clean energy consulting firms in Aarhus	10
Clean energy consulting firms in Aarhus Central	7
Clean energy consulting firms in Kobenhavn	6
Clean energy consulting firms in Skanderborg	4
Clean energy consulting firms in Kongens Lyngby	4
Clean energy consulting firms in Allerod	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “clean energy consulting firms”, with match quality audited by blind human judging, and headquartered in Denmark.
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: Contact records re-verify on a rolling cadence; 2 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many clean energy consulting firms are there based in Denmark?

There are 228 clean energy consulting firms headquartered in Denmark as of August 2026 (RevenueBase).

What is the largest company on this list?

ISC Consulting Engineers, headquartered in Kobenhavn, tops this list with the largest team on record.

Which city has the most clean energy consulting firms?

Copenhagen leads with 29 headquartered companies, followed by Aarhus (10) 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 181 verified decision-maker contacts tracked across these 228 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.