Company lists · Data verified August 2026

Top 23 Energy efficiency consulting firms based in Denmark

Name: Energy efficiency 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 82 companies tracked

There are 82 energy efficiency consulting firms headquartered in Denmark (RevenueBase, August 2026). RevenueBase tracks 559 professional contacts across them, including 72 with verified work emails and 17 with mobile numbers. Copenhagen is the largest hub.

This list covers energy efficiency 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.

82Companies

559Contacts tracked

72Verified emails

17Mobile numbers

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The 23 largest energy efficiency consulting firms based in Denmark

Ranked by team size

Top 23 of 82 energy efficiency 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	Kosmos	n/a	11-50	32	25
2	Ekolab APS	Aarhus	11-50	25	1
3	Holmsgaard A S Rådgivende Ingeniører FRI	Copenhagen	11-50	24	4
4	Vognsen Rådgivende Ingeniører A S	Randers No	11-50	18	1
5	LB Consult	Kolding	51-200	17	2
6	Scanenergi A S	Ikast	51-200	16	1
7	Aaen Engineering	Copenhagen	11-50	11	10
8	SINUZ	Frederiksberg	11-50	11	2
9	CX & Tekniq	Ishoj	11-50	11	1
10	Proenergi	Struer Central	1-10	9	3
11	C&c A S	Frederiksberg Capital Of Denmark	1-10	6	5
12	Energi Team	Kolding	1-10	6	3
13	Zmart Netzero	n/a	1-10	4	3
14	Olafi Solar	Taastrup	1-10	4	2
15	Mendole A S	Copenhagen	51-200	4	1
16	Prolution	Ry	1-10	4	1
17	ENGKO	Thisted	1-10	3	1
18	Noenco	n/a	1-10	3	1
19	Ingeniørgruppen SYD	Padborg	1-10	3	1
20	Probalance	Viborg	1-10	3	1
21	Energiberegner APS	Taastrup Capital Of Denmark	1-10	2	1
22	Astro Energi	Copenhagen Capital Of Denmark	1-10	2	1
23	Leaves Automation APS	Daugard Central	1-10	1	1

Showing 23 of 82 energy efficiency consulting firms based in Denmark

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Energy efficiency consulting firms based in Denmark at a glance

As of Aug 28, 2026

1-10Median size (employees)

CopenhagenLargest hub · 6 HQs

17Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Energy efficiency consulting firms by metro

Metro	Companies
Energy efficiency consulting firms in Copenhagen	6
Energy efficiency consulting firms in Aarhus	4
Energy efficiency consulting firms in Frederikshavn	2
Energy efficiency consulting firms in Aalborg	2
Energy efficiency consulting firms in Denmark	2
Energy efficiency consulting firms in Herlev	2
Energy efficiency consulting firms in Kolding	2

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 “energy efficiency 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; 0 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 energy efficiency consulting firms are there based in Denmark?

There are 82 energy efficiency consulting firms headquartered in Denmark as of August 2026 (RevenueBase).

What is the largest company on this list?

Kosmos, headquartered in Denmark, tops this list with the largest team on record.

Which city has the most energy efficiency consulting firms?

Copenhagen leads with 6 headquartered companies, followed by Aarhus (4) and Frederikshavn (2).

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 72 verified decision-maker contacts tracked across these 82 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.