Company lists · Data refreshed September 2026

Top 25 Renewable energy electrical contractors based in Norway

Name: Renewable energy electrical contractors based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 302 companies tracked

RevenueBase identified 302 renewable energy electrical contractors headquartered in Norway as of September 2026 and tracks 3,990 professional contacts across them, including 1,190 with verified work emails. Oslo is the largest hub.

This list covers renewable energy electrical contractors headquartered in Norway, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

302Companies

3,990Contacts tracked

1,190Verified emails

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The 25 largest renewable energy electrical contractors based in Norway

Ranked by team size

Top 25 of 302 renewable energy electrical contractors based in Norway, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy electrical contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	GK	Indirect evidence	Oslo, NorwayHQ checked Sep 17, 2026	1,001-5,000	1,150 contacts →
	Indirect evidence “GK er en ledende teknisk entreprenør og servicepartner.” Source: RevenueBase Database · checked Sep 17, 2026
2	OTOVO	Partial evidence	Oslo, NorwayHQ checked Sep 17, 2026	201-500	289 contacts →
	Partial evidence “Otovo is an AI-Native home and business energy services company with a primary focus on solar power.” Source: RevenueBase Database · checked Sep 17, 2026
3	NTE	Indirect evidence	Steinkjer, NorwayHQ checked Sep 17, 2026	201-500	283 contacts →
	Indirect evidence “NTE er et trøndersk eid fornybarselskap som har fokus på kundenes framtidige behov.” Source: RevenueBase Database · checked Sep 17, 2026
4	LOS Elektro	Partial evidence	Bremnes, NorwayHQ checked Sep 17, 2026	201-500	134 contacts →
	Partial evidence “LOS Elektro er en totalleverandør av elektrotekniske tjenester til kunder innen maritime næringer, energisektoren og bygg- og anleggsbransjen.” Source: RevenueBase Database · checked Sep 17, 2026
5	Nettpartner AS	Indirect evidence	Lysaker, NorwayHQ checked Sep 17, 2026	201-500	129 contacts →
	Indirect evidence “Nettpartner er en ledende entreprenør innen elektrisk infrastruktur.” Source: RevenueBase Database · checked Sep 17, 2026
6	Helgevold	Indirect evidence	Sandeid, NorwayHQ checked Sep 17, 2026	201-500	110 contacts →
	Indirect evidence “Helgevold er den ledende totaltekniske elektroentreprenøren på Haugalandet, med over 340 dyktige ansatte og en moderne bilpark på 140 kjøretøy.” Source: RevenueBase Database · checked Sep 17, 2026
7	Hydro Rein	Strong evidence	Oslo, NorwayHQ checked Sep 17, 2026	51-200	86 contacts →
	Strong evidence “At Hydro Rein, we're leading the race to decarbonize industry, delivering renewable energy solutions tailored to the demands of energy-intensive processes.” Source: RevenueBase Database · checked Sep 17, 2026
8	Ingeniør Ivar Pettersen AS	Indirect evidence	Drammen, NorwayHQ checked Sep 17, 2026	201-500	77 contacts →
	Indirect evidence “Til næringseiendommer, industrielle og kommunale bygg, leverer vi elektriske installasjoner.” Source: RevenueBase Database · checked Sep 17, 2026
9	Lefdal Installasjon AS	Indirect evidence	Lysaker, NorwayHQ checked Sep 17, 2026	51-200	68 contacts →
	Indirect evidence “Lefdal Installasjon ble stiftet av elektroentreprenøren Klaus Lefdal i 1934.” Source: RevenueBase Database · checked Sep 17, 2026
10	Lysteknikk Elektroentreprenør AS	Strong evidence	Oslo, NorwayHQ checked Sep 17, 2026	51-200	67 contacts →
	Strong evidence “Lysteknikk Elektroentreprenør AS is a leading Norwegian electrical contractor, specializing in the design, installation, and maintenance of advanced electrical systems for the B2B…” Source: RevenueBase Database · checked Sep 17, 2026
11	Rønning Elektro	Indirect evidence	Stavanger, NorwayHQ checked Sep 17, 2026	201-500	55 contacts →
	Indirect evidence “Rønning Elektro er en av de største elektroentreprenørene i hele Rogaland.” Source: RevenueBase Database · checked Sep 17, 2026
12	Installatøren Fredrikstad AS	Indirect evidence	Rolvsøy, NorwayHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “Installatøren Fredrikstad AS har holdt koken i over 30 år og det feiret vi skikkelig i 2019.” Source: RevenueBase Database · checked Sep 17, 2026
13	Smart Elektro AS	Indirect evidence	Oslo, NorwayHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “Smart Elektro ble etablert i 7.11.2002, og er et privateid elektroinstallasjonsselskap.” Source: RevenueBase Database · checked Sep 17, 2026
14	Alltec	Strong evidence	Stord, NorwayHQ checked Sep 17, 2026	51-200	36 contacts →
	Strong evidence “Alltec: Pioneering Sustainable Energy Solutions with Innovation and Expertise At Alltec, we're committed to empowering the renewable energy transition through high-quality…” Source: RevenueBase Database · checked Sep 17, 2026
15	ALT Installasjon AS	Indirect evidence	Våle, NorwayHQ checked Sep 17, 2026	51-200	32 contacts →
	Indirect evidence “ALT Installasjon - vårt valg av navn er ingen tilfeldighet.” Source: RevenueBase Database · checked Sep 17, 2026
16	Datelco AS	Indirect evidence	Ryen, NorwayHQ checked Sep 17, 2026	51-200	28 contacts →
	Indirect evidence “Datelco er en elektro, EKOM- og systemleverandør som leverer smarte elektroløsninger for grønne bygg.” Source: RevenueBase Database · checked Sep 17, 2026
17	Solcellekraft AS	Indirect evidence	Straume, NorwayHQ checked Sep 17, 2026	11-50	27 contacts →
	Indirect evidence “Solcellekraft er en totalleverandør av komplette solcelleanlegg.” Source: RevenueBase Database · checked Sep 17, 2026
18	Avitell Elektro	Indirect evidence	Kristiansand, NorwayHQ checked Sep 17, 2026	51-200	26 contacts →
	Indirect evidence “Avitell er et av Kristiansands ledene elektrofirma med ekspertise innen elektro, automasjon og svakstrøm.” Source: RevenueBase Database · checked Sep 17, 2026
19	Elektroxperten	Indirect evidence	Kristiansand, NorwayHQ checked Sep 17, 2026	51-200	24 contacts →
	Indirect evidence “Elektroxperten is a company based out of Norway.” Source: RevenueBase Database · checked Sep 17, 2026
20	EFA Elektro AS	Indirect evidence	Oppegård, NorwayHQ checked Sep 17, 2026	11-50	21 contacts →
	Indirect evidence “Efa Elektro AS er en mellomstor aktør på markedet for installasjonsløsninger, men vi har både kunder og leverandører som er blant de største.” Source: RevenueBase Database · checked Sep 17, 2026
21	Elektro-Kontakten AS	Indirect evidence	Oslo, NorwayHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence “Elektro-Kontakten AS is a construction company based out of Grenseveien 71B, OSLO, Norway.” Source: RevenueBase Database · checked Sep 17, 2026
22	Elektro 4 AS	Indirect evidence	Skien, NorwayHQ checked Sep 17, 2026	51-200	16 contacts →
	Indirect evidence “Elektro 4 er en elektroinstallatør med lang og stolt tradisjon.” Source: RevenueBase Database · checked Sep 17, 2026
23	Bluetec AS	Partial evidence	Tønsberg, NorwayHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “Vi leverer hele energisystemet!” Source: RevenueBase Database · checked Sep 17, 2026
24	Rett Elektro AS	Indirect evidence	Oslo, NorwayHQ checked Sep 17, 2026	1-10	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	Linjepartner AS	Partial evidence	Levanger, NorwayHQ checked Sep 17, 2026	11-50	12 contacts →
	Partial evidence “LinjePartner AS sin strategi er å være Midt-Norges mest attraktive energientreprenør innen utbygging, installasjon, drift og vedlikehold av lav- og høyspennings…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: renewable energy electrical contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names renewable energy electrical contractors.
Partial evidence: Its own public description names part of renewable energy electrical contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy electrical contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 302 renewable energy electrical contractors based in Norway

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Renewable energy electrical contractors based in Norway at a glance

As of Sep 17, 2026

29.8%Verified-email coverage

13.2Average contacts per company

1-10Median size (employees)

15.2%Largest-city concentration · Oslo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

181

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for Norway, so it is reported there. Company counts and contact totals on this page are exact for Norway, over 302 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among renewable energy electrical contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Norway whose own description of what they do matches “renewable energy electrical contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names renewable energy electrical contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among renewable energy electrical contractors, and records with no verified work email. Companies headquartered outside Norway are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,190 across the full list. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Renewable energy electrical contractors by metro

Renewable energy electrical contractors in Oslo46

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names renewable energy electrical contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many renewable energy electrical contractors are there based in Norway?

RevenueBase identified 302 renewable energy electrical contractors headquartered in Norway as of September 2026, matched on each company's own description of what it does rather than its industry code.

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 renewable energy electrical contractors?

Oslo leads with 46 headquartered companies, followed by Bergen (14) and Kristiansand (9).

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 1,190 verified decision-maker contacts tracked across these 302 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 Smart Search, 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.