Company lists · Data refreshed September 2026

Top 25 Diversified holding companies based in Norway

RevenueBase identified 58 diversified holding companies headquartered in Norway as of September 2026 and tracks 756 professional contacts across them, including 129 with verified work emails. Oslo is the largest hub.

This list covers diversified holding companies 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 19, 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 19, 2026 86% judged on-target in blind review
58Companies
756Contacts tracked
129Verified emails
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The 25 largest diversified holding companies based in Norway

Ranked by team size
Top 25 of 58 diversified holding companies based in Norway, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to diversified holding companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceOslo, NorwayHQ checked Sep 19, 202610001+432 contacts →

Indirect evidence

“Orkla ASA is a leading industrial investment company.”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceTrondheim, NorwayHQ checked Sep 19, 2026n/a37 contacts →

Partial evidence

“REITAN AS er et holdingselskap som utøver aktivt eierskap gjennom selvstendige selskaper.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceOslo, NorwayHQ checked Sep 19, 202611-5023 contacts →

Indirect evidence

“SpareBank 1 Gruppen AS er som morselskap eier av fem datterselskaper som samlet utgjør SpareBank 1 Gruppen.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceOslo, NorwayHQ checked Sep 19, 202611-5022 contacts →

Indirect evidence

“The Blystad Group is a family-owned business with decades of history combining industrial expertise, ingenuity and capital markets.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceTrondheim, NorwayHQ checked Sep 19, 2026201-50020 contacts →

Indirect evidence

“Realinvest er et familieeid konsern med hovedkontor i Trondheim og ble etablert i 1891.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceOslo, NorwayHQ checked Sep 19, 2026201-50016 contacts →

Indirect evidence

“A driver for innovation and growth As owners, we are engaged and active.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceLysaker, NorwayHQ checked Sep 19, 202611-5015 contacts →

Partial evidence

“Akastor is an oil-services investment company with a portfolio of industrial holdings and other investments.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceSortland, NorwayHQ checked Sep 19, 2026201-50015 contacts →

Indirect evidence

“VÅRE DATTERSELSKAPER Kronstein Entreprenør AS består av datterselskapene Sortland Entreprenør, Harstadbygg Entreprenør, Kai og Anlegg Entreprenør, Harstadbygg Bolig og SE…”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceSortland, NorwayHQ checked Sep 19, 202651-20015 contacts →

Indirect evidence

“Datterselskap i A/S Bulldozer Maskinlag: 1993 - Sigerfjord Sand AS 1996 - Bulldozer Maskinlag Produksjon AS 1997 - Bulldozer Maskinlag Entreprenør AS 1997 - Bulldozer Maskinlag…”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceGrimstad, NorwayHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“Velkommen til J.B.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceOslo, NorwayHQ checked Sep 19, 20261-109 contacts →

Indirect evidence

“Tress Eiendom startet sin virksomhet i 2012 og har etablert seg som en anerkjent aktør som kan vise til sunn og god vekst.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceStavanger, NorwayHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“Base Gruppen er morselskapet i Base-konsernet og utøver et aktivt eierskap overfor datterselskapene.”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceBergen, NorwayHQ checked Sep 19, 202611-508 contacts →

Partial evidence

“Enkelhet satt i system er grunntanken i de driftsselskapene som er og blir stiftet under holdingselskapet.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceSpydeberg, NorwayHQ checked Sep 19, 202651-2008 contacts →

Indirect evidence

“Familieeide AE Gruppen skal være aktive eiere.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceBergen, NorwayHQ checked Sep 19, 202611-506 contacts →

Partial evidence

“Nordic Group Holding AS is a holding company for more than 20 subsidiaries.”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidenceBergen, NorwayHQ checked Sep 19, 20261-105 contacts →

Partial evidence

“Tertnes Holding er et aktivt investeringsselskap med langsiktig eierskap i selskaper på tvers av bransjer.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceOslo, NorwayHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“Watrium is a private investment company focusing on active, long-term ownership of a global financial portfolio, industrial assets and top-tier commercial property in central…”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceKolvereid, NorwayHQ checked Sep 19, 202651-2004 contacts →

Indirect evidence

“Veksten i Nærøysund Kraftbetong AS etter oppstarten i 2002 førte til ytterligere knoppskyting i distriktets næringsliv.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceOslo, NorwayHQ checked Sep 19, 202651-2003 contacts →

Indirect evidence

“BTG is an active investment company that focus on operational management and development of its subsidiaries.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceNorwayHQ checked Sep 19, 202651-2003 contacts →

Indirect evidence

“Rubb Industries AS is the umbrella company for several successful businesses in building, construction, and manufacturing industries worldwide.”

Source: RevenueBase Database · checked Sep 19, 2026
21Partial evidenceOslo, NorwayHQ checked Sep 19, 20261-103 contacts →

Partial evidence

“ELA AS is a holding and investment company, home of ELA Analytics, a data analytics consulting and IT development house and Numus, a personal finance and wealth management…”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceManstad, NorwayHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Rune Kilebu AS er et spesialisert investeringsselskap, lokalisert på Skjæløy i Fredrikstad Kommune.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceBergen, NorwayHQ checked Sep 19, 20261-102 contacts →

Partial evidence

“Active holding company involved with maritime industry, financial consultancy, investments & property development with a strategic and long term focus.”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceTrondheim, NorwayHQ checked Sep 19, 202611-501 contacts →

Partial evidence

“Selmer Holding er et management- og investeringsselskap som bl.a investerer i boligeiendom, industri, mm.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceMo I Rana, NorwayHQ checked Sep 19, 202611-501 contacts →

Indirect evidence

“Eiendomskonsern”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 58 diversified holding companies based in Norway

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Diversified holding companies based in Norway at a glance

As of Sep 19, 2026
17.1%Verified-email coverage
13.0Average contacts per company
1-10Median size (employees)
29.3%Largest-city concentration · Oslo
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
31
11-50
12
51-200
7
201-500
4
501-1,000
1
5,001-10,000
1
10001+
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 58 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 diversified holding companies, 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 “diversified holding companies”. 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 diversified holding companies), 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 diversified holding companies, 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, 129 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 19, 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.

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 diversified holding companies, 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 diversified holding companies are there based in Norway?

RevenueBase identified 58 diversified holding companies 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?

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

Which city has the most diversified holding companies?

Oslo leads with 17 headquartered companies, followed by Trondheim (6) and Bergen (4).

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 129 verified decision-maker contacts tracked across these 58 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 19, 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.