Company lists · Data refreshed October 2026

Top 25 Energy efficiency engineering consultants based in Denmark

Name: Energy efficiency engineering consultants based in Denmark
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 130 companies tracked

RevenueBase identified 130 company matches for energy efficiency engineering consultants associated with Denmark as of October 2026 and tracks 1,343 professional contacts across them, including 108 with verified work emails. Copenhagen is the largest hub.

This list covers company matches for energy efficiency engineering consultants 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 October 12, 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 Oct 12, 2026 How this list was built

130Companies

1,343Contacts tracked

108Verified emails

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The 25 largest energy efficiency engineering consultants based in Denmark

Ranked by team size

Top 25 of 130 company matches for energy efficiency engineering consultants based in Denmark, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	AI Arkitekter & Ingeniører	Exact match	Copenhagen K, DenmarkHQ recorded Oct 12, 2026	51-200	127 contacts →
	Exact match “Hos AI Arkitekter & Ingeniører leverer vi helhedsbaseret totalrådgivning.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Lyngkilde	Exact match	Næstved, DenmarkHQ recorded Oct 12, 2026	51-200	69 contacts →
	Exact match “Firmaet er med sine ca.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Danakon	Exact match	Taastrup, DenmarkHQ recorded Oct 12, 2026	11-50	27 contacts →
	Exact match “Danakon a/s er en rådgivende ingeniørvirksomhed med over 60 års erfaring inden for bygningsrådgivning, nybyggeri, renovering, modernisering og energioptimering.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Ekolab APS	Exact match	Aarhus, DenmarkHQ recorded Oct 12, 2026	11-50	27 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 · Oct 12, 2026 · View company records in RevenueBase
5	Erasmus & Partnere A S	Exact match	Hjørring, DenmarkHQ recorded Oct 12, 2026	11-50	24 contacts →
	Exact match “Erasmus & Partnere AS rådgivende ingeniører i Hjørring og Aalborg udfører teknisk rådgivning i forb.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Ingeniør Huse A S	Exact match	Brabrand, DenmarkHQ recorded Oct 12, 2026	11-50	24 contacts →
	Exact match “Ingeniør Huse er en rådgivnings- og konsulentvirksomhed, der tilbyder ekspertrådgivning til fjernvarme- og kølebranchen plus i nogen grad til boligforeninger og offentlige…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Holmsgaard A S Rådgivende Ingeniører FRI	Exact match	Copenhagen, DenmarkHQ recorded Oct 12, 2026	11-50	23 contacts →
	Exact match “Holmsgaard a/s er en rådgivende ingeniørvirksomhed med fokus på bæredygtighed.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Topdahl Ingeniører, Arkitekter & Energirådgivere APS	Exact match	Herlev, DenmarkHQ recorded Oct 12, 2026	11-50	22 contacts →
	Exact match “Topdahl Ingeniører & Energirådgivere er et tværfagligt rådgiverhus med speciale i renovering af den eksisterende bygningsmasse.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Hj-Energi	Exact match	Dronninglund, DenmarkHQ recorded Oct 12, 2026	11-50	21 contacts →
	Exact match “HJ-Energi er en rådgivende ingeniørvirksomhed, specialiseret i byggeriet og den eksisterende bygningsmasse.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Fremsyn A S	Exact match	Kgs. Lyngby, DenmarkHQ recorded Oct 12, 2026	11-50	21 contacts →
	Exact match “Fremsyn er et selvstændigt konsulenthus med speciale i grøn forretningsudvikling og rådgivning inden for energi og transport.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Vognsen Rådgivende Ingeniører A S	Exact match	Randers Nø, DenmarkHQ recorded Oct 12, 2026	11-50	19 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 · Oct 12, 2026 · View company records in RevenueBase
12	Scanenergi A S	Exact match	Ikast, DenmarkHQ recorded Oct 12, 2026	51-200	14 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 · Oct 12, 2026 · View company records in RevenueBase
13	Ntek APS	Exact match	Ikast, DenmarkHQ recorded Oct 12, 2026	11-50	13 contacts →
	Exact match “NTEK ApS Indeklima \| Ventilationsanlæg \| CO2 Reduktion \| Håndtering af Farligt Affald NTEK er specialiserede rådgivere inden for indeklima med en dedikation til at optimere energi…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	CX & Tekniq	Exact match	Ishøj, DenmarkHQ recorded Oct 12, 2026	11-50	13 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 · Oct 12, 2026 · View company records in RevenueBase
15	Aaen Engineering	Exact match	Copenhagen, DenmarkHQ recorded Oct 12, 2026	11-50	12 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 · Oct 12, 2026 · View company records in RevenueBase
16	SINUZ	Exact match	Frederiksberg, DenmarkHQ recorded Oct 12, 2026	11-50	12 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 · Oct 12, 2026 · View company records in RevenueBase
17	LB Consult	Exact match	Aarhus, DenmarkHQ recorded Oct 12, 2026	51-200	12 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 · Oct 12, 2026 · View company records in RevenueBase
18	Proenergi	Exact match	Struer, DenmarkHQ recorded Oct 12, 2026	1-10	11 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 · Oct 12, 2026 · View company records in RevenueBase
19	JPH Energi A S	Exact match	Dronninglund, DenmarkHQ recorded Oct 12, 2026	11-50	10 contacts →
	Exact match “JPH Energi A/S har stor erfaring indenfor rådgivning omkring energianlæg som kraftvarme, damp, kedel- og biogasanlæg, varmepumper og store elkedler.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	C&c A S	Exact match	Frederiksberg, DenmarkHQ recorded Oct 12, 2026	1-10	8 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 · Oct 12, 2026 · View company records in RevenueBase
21	Olav Kristensen Rådgivende Ingeniørfirma	Exact match	Esbjerg, DenmarkHQ recorded Oct 12, 2026	1-10	7 contacts →
	Exact match “Olav Kristensen Rådgivende Ingeniørfirma ApS rådgiver virksomheder og offentlige myndigheder om primært byggeri, anlæg, energi og installationer.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Brinckmann Group	Exact match	Aarhus, DenmarkHQ recorded Oct 12, 2026	11-50	7 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	GH Energi & Rådgivning APS	Exact match	Birkerød, DenmarkHQ recorded Oct 12, 2026	1-10	6 contacts →
	Exact match “Vi har erfaring fra en stor portefølje af projekter og opgaver i hele Danmark og løser store som små opgaver inden for rådgivning, renovering og energibesparelser i bygninger.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Zmart Netzero	Exact match	Copenhagen, DenmarkHQ recorded Oct 12, 2026	1-10	4 contacts →
	Exact match “Energy markets are changing-and industrial companies are feeling it.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Cx1	Exact match	Herning, DenmarkHQ recorded Oct 12, 2026	1-10	4 contacts →
	Exact match “CX1 er en ledende aktør indenfor Commissioning, generelt tekniskrådgivning, driftsrådgivning/-optimering og CTS CX1 er grundlagt af Simon Skaarup der med sin grundlæggende rolle…” Recorded in the RevenueBase company graph · Oct 12, 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 engineering consultants”. 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 25 of 130 energy efficiency engineering consultants based in Denmark

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Energy efficiency engineering consultants based in Denmark at a glance

As of Oct 12, 2026

8.0%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

10.0%Largest-city concentration · Copenhagen

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 130 companies.

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 engineering consultants” 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 108 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 October 12, 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 engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficiency engineering consultants are there based in Denmark?

RevenueBase identified 130 company matches for energy efficiency engineering consultants associated with Denmark as of October 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?

AI Arkitekter & Ingeniører tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most energy efficiency engineering consultants?

Copenhagen leads with 13 company records, followed by Aarhus (3) and Copenhagen Capital Of Denmark (3).

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 108 professional contacts with verified work emails tracked across these 130 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 October 12, 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.