Company lists · Data verified August 2026

Top 23 Energy efficiency consulting firms based in Norway

Name: Energy efficiency consulting firms based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 50 companies tracked

There are 50 energy efficiency consulting firms headquartered in Norway (RevenueBase, August 2026). RevenueBase tracks 1,573 professional contacts across them, including 588 with verified work emails and 44 with mobile numbers. Oslo is the largest hub.

This list covers energy efficiency consulting firms headquartered in Norway, 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.

50Companies

1,573Contacts tracked

588Verified emails

44Mobile numbers

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The 23 largest energy efficiency consulting firms based in Norway

Ranked by team size

Top 23 of 50 energy efficiency consulting firms based in Norway, 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	GK	Oslo	1,001-5,000	1,149	425
2	Norsk Energi	Laksevag	51-200	79	52
3	ENTRO	Trondheim	51-200	51	28
4	EM Systemer AS	n/a	51-200	25	14
5	Elkraft AS	Oslo	51-200	23	8
6	Evotek AS	Lysaker	11-50	22	5
7	Green Norway	n/a	11-50	15	1
8	Enøktotal	Mandal	11-50	14	11
9	Pascal Automasjon	Ski	11-50	11	10
10	Termoenergi Norge AS	Sandefjord	11-50	10	2
11	Variable	Oslo	1-10	8	5
12	Ensonor AS	Oslo	1-10	7	6
13	Vill Energi	Oslo	1-10	6	5
14	Eld365	Skodje	1-10	6	3
15	Energiråd AS	Alesund	1-10	4	3
16	Energima Analyse	Alesund	n/a	3	1
17	energipakka.no	Askollen	51-200	2	2
18	Riecon AS	Skjetten	1-10	2	2
19	EEFFY	Oslo	1-10	2	1
20	Pens AS	Trondheim	1-10	2	1
21	Fjordvarme AS	Nordfjordeid	1-10	1	1
22	Energitiltaket AS	Kristiansand	1-10	1	1
23	RIE Telemark AS	Notodden	n/a	1	1

Showing 23 of 50 energy efficiency consulting firms based in Norway

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Energy efficiency consulting firms based in Norway at a glance

As of Aug 28, 2026

1-10Median size (employees)

OsloLargest hub · 13 HQs

44Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Energy efficiency consulting firms by metro

Metro	Companies
Energy efficiency consulting firms in Oslo	13
Energy efficiency consulting firms in Trondheim	5
Energy efficiency consulting firms in Kristiansand	2
Energy efficiency consulting firms in Alesund	2
Energy efficiency consulting firms in Moss	1
Energy efficiency consulting firms in Molde	1
Energy efficiency consulting firms in Ski	1

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 Norway.
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 Norway?

There are 50 energy efficiency consulting firms headquartered in Norway as of August 2026 (RevenueBase).

What is the largest company on this list?

GK, headquartered in Oslo, tops this list with the largest team on record.

Which city has the most energy efficiency consulting firms?

Oslo leads with 13 headquartered companies, followed by Trondheim (5) and Kristiansand (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 588 verified decision-maker contacts tracked across these 50 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.