Company lists · Data refreshed November 2026

Top 25 Transformer installation contractors based in Norway

RevenueBase identified 113 company matches for transformer installation contractors associated with Norway as of November 2026 and tracks 903 professional contacts across them, including 379 with verified work emails. Oslo is the largest hub.

This list covers company matches for transformer installation contractors associated with Norway, 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 November 6, 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 Nov 6, 2026 How this list was built
113Companies
903Contacts tracked
379Verified emails
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The 25 largest transformer installation contractors based in Norway

Ranked by team size
Top 25 of 113 company matches for transformer installation contractors based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLysaker, NorwayHQ recorded Nov 6, 2026201-500141 contacts →

Exact match

“Nettpartner er en ledende entreprenør innen elektrisk infrastruktur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSandeid, NorwayHQ recorded Nov 6, 2026201-500118 contacts →

Exact match

“Helgevold er den ledende totaltekniske elektroentreprenøren på Haugalandet, med over 340 dyktige ansatte og en moderne bilpark på 140 kjøretøy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLysaker, NorwayHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Lefdal Installasjon ble stiftet av elektroentreprenøren Klaus Lefdal i 1934.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchRolvsøy, NorwayHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“Installatøren Fredrikstad AS har holdt koken i over 30 år og det feiret vi skikkelig i 2019.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchVåle, NorwayHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“ALT Installasjon - vårt valg av navn er ingen tilfeldighet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBergen, NorwayHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Pettersson & Gjellesvik (PG) er en ledende elektroentreprenør i Bergensregionen og totalleverandør av elektroinstallasjoner innen privat, offentlig og næringsmarkedet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchOslo, NorwayHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“Elektro-Kontakten AS is a construction company based out of Grenseveien 71B, OSLO, Norway.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact match0680 Oslo, NorwayHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“Storm Elektro Oslo-Akershus AS ble stiftet i 2002 og vi utfører alt av elektriske arbeider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMoss, NorwayHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“Moss Elektro is a company based out of Årvollskogen 10, Moss, Viken, Norway.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLevanger, NorwayHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“LinjePartner AS sin strategi er å være Midt-Norges mest attraktive energientreprenør innen utbygging, installasjon, drift og vedlikehold av lav- og høyspennings…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchOslo, NorwayHQ recorded Nov 6, 20261-1012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchOslo, NorwayHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Når kvalitet teller!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSarpsborg, NorwayHQ recorded Nov 6, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLillestrøm, NorwayHQ recorded Nov 6, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchRygge, NorwayHQ recorded Nov 6, 202611-509 contacts →

Exact match

“CRS Elektro leverer komplette elektrotekniske installasjoner og rådgiving innenfor elektro.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchStraume, NorwayHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Straume Elektriske er en registrert installatørvirksomhet og totalleverandør av elektro- og automasjonsløsninger for bolig, næring og industri.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDrammen, NorwayHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Entreprenør og EPC-leverandør for trafo- og koblingsstasjoner, høyspentlinjer og industri.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchVoss, NorwayHQ recorded Nov 6, 202651-2008 contacts →

Exact match

“Vangen Elektriske AS er en elektroentreprenør som leverer både svakstrøm og sterkstrøm løsninger til bolig, forretning og industri.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSteinkjer, NorwayHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Norsk Transformator is a Distribution Transformer Manufacturing company based out of Steinkjer, Norway.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchStavanger, NorwayHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Relatek Elektro AS er en elektrobedrift lokalisert i Stavanger.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchOslo, NorwayHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Elektroentreprenør som tilbyr elektrikertjenester, rådgivningstjenster og tilstandskontroll.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchStraume, NorwayHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Øygarden Elektriske ble etablert i 1954 og er totalleverandør av elektriske installasjoner for bedrifts- og privatmarkedet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSofiemyr, NorwayHQ recorded Nov 6, 202611-507 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchOslo, NorwayHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Atom elektro AS is a construction company based out of Gladengveien 3B, Oslo, Norway.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLakselv, NorwayHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Gabriel Elektro AS er en autorisert elektroinstallasjonsvirksomhet lokalisert i Lakselv, med kontoradresse i Arne M.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 113 transformer installation contractors based in Norway

See the full list, filter by size, metro and specialty, and access 379 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformer installation contractors based in Norway at a glance

As of Nov 6, 2026
42.0%Verified-email coverage
8.0Average contacts per company
1-10Median size (employees)
16.8%Largest-city concentration · Oslo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
61
11-50
35
51-200
11
201-500
2

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 113 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 Norway whose business descriptions match “transformer installation contractors” 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 379 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 November 6, 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 “transformer installation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transformer installation contractors are there based in Norway?

RevenueBase identified 113 company matches for transformer installation contractors associated with Norway as of November 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?

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

Which city has the most transformer installation contractors?

Oslo leads with 19 company records, followed by Bergen (5) and Lillehammer (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 379 professional contacts with verified work emails tracked across these 113 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 November 6, 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.