Company lists · Data refreshed September 2026

Top 19 Middle market private equity companies based in Oslo, Norway

RevenueBase identified 33 middle market private equity companies headquartered in Oslo, Norway as of September 2026 and tracks 789 professional contacts across them, including 200 with verified work emails and 31 with mobile numbers. Across Norway, Oslo is the largest hub for this category.

This list covers middle market private equity companies headquartered in Oslo, 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 13, 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 13, 2026 86% judged on-target in blind review
33Companies
789Contacts tracked
200Verified emails
31Mobile numbers
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The 19 largest middle market private equity companies based in Oslo, Norway

Ranked by team size
Top 19 of 33 middle market private equity companies based in Oslo, Norway, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to middle market private equity 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 13, 202610001+432 contacts →

Indirect evidence

“Orkla ASA is a leading industrial investment company.”

Source: RevenueBase Database · checked Sep 13, 2026
2Strong evidenceOslo, NorwayHQ checked Sep 13, 202651-200126 contacts →

Strong evidence

“Established in FSN Capital Partners is a leading Northern European private equity firm and investment advisor to the FSN Capital Funds.”

Source: RevenueBase Database · checked Sep 13, 2026
3Strong evidenceOslo, NorwayHQ checked Sep 13, 202651-20056 contacts →

Strong evidence

“Norvestor Advisory is a leading private equity company focusing on mid-market buyouts in the Nordic region.”

Source: RevenueBase Database · checked Sep 13, 2026
4Indirect evidenceOslo, NorwayHQ checked Sep 13, 202611-5026 contacts →

Indirect evidence

“Kistefos AS is an investment firm with investments in offshore, shipping, financial services, IT/telecom and real estate.”

Source: RevenueBase Database · checked Sep 13, 2026
5Indirect evidenceOslo, NorwayHQ checked Sep 13, 2026201-50016 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 13, 2026
6Partial evidenceOslo, NorwayHQ checked Sep 13, 202611-5016 contacts →

Partial evidence

“Canica is one of the largest privately owned investment companies in Norway.”

Source: RevenueBase Database · checked Sep 13, 2026
7Strong evidenceOslo, NorwayHQ checked Sep 13, 20261-1011 contacts →

Strong evidence

“Equip Capital was founded in 2018 by five experienced private equity professionals with its headquarter in Oslo, Norway.”

Source: RevenueBase Database · checked Sep 13, 2026
8Strong evidenceOslo, NorwayHQ checked Sep 13, 202611-5010 contacts →

Strong evidence

“Established in 2015, Longship is the leading private equity investor dedicated to the Norwegian lower mid-market.”

Source: RevenueBase Database · checked Sep 13, 2026
9Indirect evidenceOslo, NorwayHQ checked Sep 13, 20261-109 contacts →

Indirect evidence

“Monte Rosa Capital is focused on investing in and developing mid-sized companies either through accelerated growth or through turning underperforming businesses into healthy ones.”

Source: RevenueBase Database · checked Sep 13, 2026
10Indirect evidenceOslo, NorwayHQ checked Sep 13, 20261-108 contacts →

Indirect evidence

“A partner of choice in helping growth companies and entrepreneurial management teams to excel.”

Source: RevenueBase Database · checked Sep 13, 2026
11Indirect evidenceOslo, NorwayHQ checked Sep 13, 20261-106 contacts →

Indirect evidence

“Papillon was set up to serve as vehicle to achieve long-term, viable, sustainable growth for primarily European based vertical software companies.”

Source: RevenueBase Database · checked Sep 13, 2026
12Indirect evidenceOslo, NorwayHQ checked Sep 13, 20261-106 contacts →

Indirect evidence

“Inin Group is an industrial owner that follows a vertical-focused buy-and-build strategy in order to identify and invest in profitable niches with potential for development and…”

Source: RevenueBase Database · checked Sep 13, 2026
13Indirect evidenceOslo, NorwayHQ checked Sep 13, 20261-106 contacts →

Indirect evidence

“Selmer Capital Partners is a family owned investment company.”

Source: RevenueBase Database · checked Sep 13, 2026
14Partial evidenceOslo, NorwayHQ checked Sep 13, 20261-105 contacts →

Partial evidence

“BlueCorp is a private corporate advisory and investment company, focused on providing business-critial advice to companies by taking an active role in the top-management.”

Source: RevenueBase Database · checked Sep 13, 2026
15Indirect evidenceOslo, NorwayHQ checked Sep 13, 202611-504 contacts →

Indirect evidence

“Montin er et aktivt investeringsselskap med hovedfokus på eiendomsrelaterte investeringer.”

Source: RevenueBase Database · checked Sep 13, 2026
16Indirect evidenceOslo, NorwayHQ checked Sep 13, 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 13, 2026
17Indirect evidenceOslo, NorwayHQ checked Sep 13, 20261-103 contacts →

Indirect evidence

“Moxie AS, established in is located in Oslo, Norway.”

Source: RevenueBase Database · checked Sep 13, 2026
18Indirect evidenceOslo, NorwayHQ checked Sep 13, 20261-102 contacts →

Indirect evidence

“Saga Management søker aktivt bransjer, bedrifter eller grupper av selskaper som står overfor strategiske, finansielle og/eller operasjonelle utfordringer og som søker…”

Source: RevenueBase Database · checked Sep 13, 2026
19Indirect evidenceOslo, NorwayHQ checked Sep 13, 20261-101 contacts →

Indirect evidence

“Named after a mountain plateau in central/north Norway known for its vast open spaces.”

Source: RevenueBase Database · checked Sep 13, 2026

Showing 19 of 33 middle market private equity companies based in Oslo, Norway

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Middle market private equity companies based in Oslo, Norway at a glance

As of Sep 13, 2026
25.3%Verified-email coverage
3.9%Mobile-number coverage
23.9Average contacts per company
1-10Median size (employees)
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
5
51-200
4
201-500
1
10001+
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

Company record updated

Median 71.0d

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 middle market private equity 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 Oslo, Norway whose own description of what they do matches “middle market private equity 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 middle market private equity 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 middle market private equity companies, and records with no verified work email. Companies headquartered outside Oslo 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, 200 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 13, 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 middle market private equity 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 middle market private equity companies are there based in Oslo, Norway?

RevenueBase identified 33 middle market private equity companies headquartered in Oslo, 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 in Norway has the most middle market private equity companies?

Oslo leads Norway with 33 headquartered companies, followed by Stavanger (4) and Bergen (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 200 verified decision-maker contacts tracked across these 33 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 13, 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.