Company lists · Data refreshed September 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 Data refreshed Sep 2, 2026 82 companies tracked

RevenueBase identified 82 company matches for energy efficiency consulting firms associated with Denmark as of September 2026 and 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 company matches for energy efficiency consulting firms associated with Denmark, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 2, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 2, 2026 How this list was built

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 company matches for energy efficiency consulting firms based in Denmark, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 2, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Kosmos	Exact match	Denmark	11-50	32 contacts →
	Exact match “KOSMOS is a Cost & Carbon Management consultancy with offices in Denmark & Ireland.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
2	Ekolab APS	Exact match	Aarhus, Denmark	11-50	25 contacts →
	Exact match “Vi har specialiseret os i bæredygtighedsprocesser, sundt indeklima og energioptimering for at bidrage til at transformere byggeriet i en positiv retning.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
3	Holmsgaard A S Rådgivende Ingeniører FRI	Exact match	Copenhagen, Denmark	11-50	24 contacts →
	Exact match “Holmsgaard a/s er en rådgivende ingeniørvirksomhed med fokus på bæredygtighed.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
4	Vognsen Rådgivende Ingeniører A S	Exact match	Randers No, Denmark	11-50	18 contacts →
	Exact match “VOGNSEN Rådgivende Ingeniører A/S varetager alle relevante ingeniørdiscipliner inden for bygge- og anlægsområdet, og virksomheden har desuden stor erfaring med energioptimering og…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
5	LB Consult	Exact match	Kolding, Denmark	51-200	17 contacts →
	Exact match “LB Consult er et rådgivende ingeniørfirma, som leverer gennemtænkt rådgivning med fokus på bæredygtighed og lavenergi.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
6	Scanenergi A S	Exact match	Ikast, Denmark	51-200	16 contacts →
	Exact match “Det er dyrt at bruge energi, men det er spild af penge at bruge for meget energi.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
7	Aaen Engineering	Exact match	Copenhagen, Denmark	11-50	11 contacts →
	Exact match “Aaen Engineering er en rådgivende ingeniørvirksomhed med fokus på at implementere konkrete, målbare og mærkbare bæredygtighedsinitiativer i det byggede miljø.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
8	SINUZ	Exact match	Frederiksberg, Denmark	11-50	11 contacts →
	Exact match “SINUZ er et rådgivende ingeniørfirma, der har specialiseret sig i tekniske installationer, energi og indeklima med fokus på bæredygtige og miljøvenlige løsninger.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
9	CX & Tekniq	Exact match	Ishoj, Denmark	11-50	11 contacts →
	Exact match “Sammenhæng og balance i bygningernes tekniske anlæg: Cx & tekniq bistår bygherrer og entreprenører med udviklingen af bygbare og velfungerende tekniske anlæg i nybyggerier…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
10	Proenergi	Exact match	Struer Central, Denmark	1-10	9 contacts →
	Exact match “ProEnergi er en uvildig energirådgivningsvirksomhed, som rådgiver virksomheder, boligforeninger og institutioner med optimering af energiforbruget og andre aspekter af…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
11	C&c A S	Exact match	Frederiksberg Capital Of Denmark, Denmark	1-10	6 contacts →
	Exact match “C&C udfører projektering af tekniske installationer (vvs, ventilation, kloak og el), energi og indeklima i de fleste typer bygninger, både indenfor nybyggeri, renovering og…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
12	Energi Team	Exact match	Kolding, Denmark	1-10	6 contacts →
	Exact match “Our aim is to help you gain an overview of your energy agreements and purchases.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
13	Zmart Netzero	Exact match	Denmark	1-10	4 contacts →
	Exact match “Energy markets are changing-and industrial companies are feeling it.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
14	Olafi Solar	Exact match	Taastrup, Denmark	1-10	4 contacts →
	Exact match “Hos Olafi tilbyder vi skræddersyede og effektive energiløsninger, der hjælper dig med at reducere dit miljøaftryk og spare på energiomkostningerne.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
15	Mendole A S	Exact match	Copenhagen, Denmark	51-200	4 contacts →
	Exact match “We provide services and installation to reduce the energy consumption of commercial and industrial buildings.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
16	Prolution	Exact match	Ry, Denmark	1-10	4 contacts →
	Exact match “Hos Prolution hjælper vi virksomheder med at skabe en grønnere fremtid gennem produktionsoptimering, ESG-rapportering, bæredygtige strategier.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
17	ENGKO	Exact match	Thisted, Denmark	1-10	3 contacts →
	Exact match “Engko er uafhængig energirådgivning til private og erhverv.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
18	Noenco	Exact match	Denmark	1-10	3 contacts →
	Exact match “NOENCO is your wingman at sea.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
19	Ingeniørgruppen SYD	Exact match	Padborg, Denmark	1-10	3 contacts →
	Exact match “ingeniørgruppen syd er et rådgivende ingeniørfirma, der favner bredt inden for bygge- og installations området Firmaet har specialiseret sig indenfor installations- og…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
20	Probalance	Exact match	Viborg, Denmark	1-10	3 contacts →
	Exact match “ProBalance, established in 2024 by Christian Rasmussen, aims to enhance the competitiveness of Danish manufacturing companies through sustainability.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
21	Energiberegner APS	Exact match	Taastrup Capital Of Denmark, Denmark	1-10	2 contacts →
	Exact match “Energiberegner ApS er en rådgivende ingeniørvirksomhed, der yder bistand til professionelle bygherrer, arkitekter, bygherrer og andre rådgivere inden for kategorien ENERGI og…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
22	Astro Energi	Exact match	Copenhagen Capital Of Denmark, Denmark	1-10	2 contacts →
	Exact match “Astro Energi leverer integrerede løsninger, der fremmer både miljøet og din virksomheds økonomiske effektivitet gennem målbare og bæredygtige energibesparelser.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
23	Leaves Automation APS	Exact match	Daugard Central, Denmark	1-10	1 contacts →
	Exact match “Leverandør af konsulentydelser indenfor energioptimering og engineering, herunder industri- og bygningsautomatik samt programmering og udvikling i flere forskellige…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “energy efficiency consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

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 Sep 2, 2026

12.9%Verified-email coverage

3.0%Mobile-number coverage

6.8Average contacts per company

1-10Median size (employees)

7.3%Largest-city concentration · Copenhagen

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Denmark whose business descriptions match “energy efficiency consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 72 professional contacts with verified work emails across the full matched dataset. 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 2, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “energy efficiency consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 82 company matches for energy efficiency consulting firms associated with Denmark as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Kosmos tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most energy efficiency consulting firms?

Copenhagen leads with 6 company records, 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 limited free results with 500 credits to start. Upgrading provides access to the 72 professional contacts with verified work emails tracked across these 82 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 2, 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 SmartSearch, 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.