Company lists · Data refreshed September 2026

Top 18 Corporate legal services providers based in Oslo, Norway

RevenueBase identified 30 corporate legal services providers headquartered in Oslo, Norway as of September 2026 and tracks 1,178 professional contacts across them, including 514 with verified work emails. Across Norway, Oslo is the largest hub for this category.

This list covers corporate legal services providers 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 28, 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 28, 2026 86% judged on-target in blind review
30Companies
1,178Contacts tracked
514Verified emails
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The 18 largest corporate legal services providers based in Oslo, Norway

Ranked by team size
Top 18 of 30 corporate legal services providers based in Oslo, Norway, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to corporate legal services providers: 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 28, 2026201-500334 contacts →

Indirect evidence

“The roots of Advokatfirmaet Wiersholm extend back to 1875.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceOslo, NorwayHQ checked Sep 28, 2026201-500230 contacts →

Indirect evidence

“Simonsen Vogt Wiig’s 180 lawyers assist national and international clients from offices in Oslo, Bergen, Trondheim, Stavanger, Kristiansand, Tromsø and Singapore.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceOslo, NorwayHQ checked Sep 28, 202651-20084 contacts →

Indirect evidence

“Brækhus has extensive and specialized experience in assisting clients doing business in Norway.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceOslo, NorwayHQ checked Sep 28, 202651-20048 contacts →

Partial evidence

“Codex Law Firm provides general legal services and is a trusted partner for all legal issues.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceOslo, NorwayHQ checked Sep 28, 202611-5028 contacts →

Indirect evidence

“BERNGAARD is a law firm in Oslo with vast expertise in construction law, technology and media, and public procurement.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceOslo, NorwayHQ checked Sep 28, 202611-5024 contacts →

Partial evidence

“AGP is a transactions, capital markets and corporate focussed law firm in Oslo, Norway.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceOslo, NorwayHQ checked Sep 28, 202611-5022 contacts →

Partial evidence

“Since 1986, SGB has assisted small and medium-sized businesses, public authorities and private clients with pointed, legal advice within our core areas.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceOslo, NorwayHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“Wahl-Larsen Advokatfirma AS is a law firm centrally situated in Oslo, founded in 1874.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261-108 contacts →

Indirect evidence

“Advokatfirmaet Strandenæs is a commercial law firm based in Oslo.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“Gille advokater DA is a boutique firm within the fields of- IT law - Intellectual Property Rights - Public procurement - Delivery contract, construction law and offshore -…”

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceOslo, NorwayHQ checked Sep 28, 20261-103 contacts →

Strong evidence

“The lawyers in Bjerke Lowzow von Ahnen provides legal advice and dispute resolution in several areas - trade, corporate and transport.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Hjelseth Advokatfirma hjelper private selskaper og personer med juridiske problemstillinger i nærings- og arbeidslivet.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Riid Advokatfirma leverer juridiske tjenester i tverrsnittet av næringslivets viktigste økonomiske områder.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Advokatfirmaet Grønvigh, Tjersland & Indrevær DA er et advokatfirma med kontor i Oslo, og våre advokater bistår bredt innen de forretningsjuridiske områdene.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Advokatfirmaet Haaland DA er et advokatkontor lokalisert i Oslo sentrum.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceOslo, NorwayHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“ADVOKATFIRMAET OPØIEN is a company based out of Seilduksgata 5D, OSLO, Oslo, Norway.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceOslo, NorwayHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Javelin is a full service corporate services provider located in Oslo, Norway.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceOslo, NorwayHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“House Legal Advokat AS tilbyr spesialtilpasset forretningsjuridisk rådgivning, selskapsrådgivning og ledelsesstøtte til små og store bedrifter.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 18 of 30 corporate legal services providers based in Oslo, Norway

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Corporate legal services providers based in Oslo, Norway at a glance

As of Sep 28, 2026
43.6%Verified-email coverage
39.3Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
7
51-200
4
201-500
3

Email recency for this list is measured across the whole Norway list rather than for Oslo, so it is reported there. Company counts and contact totals on this page are exact for Oslo, over 30 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 corporate legal services providers, 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 “corporate legal services providers”. 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 corporate legal services providers), 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 corporate legal services providers, 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, 514 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 28, 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 corporate legal services providers, 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 corporate legal services providers are there based in Oslo, Norway?

RevenueBase identified 30 corporate legal services providers 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?

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

Which city in Norway has the most corporate legal services providers?

Oslo leads Norway with 30 headquartered companies, followed by Stavanger (3) 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 514 verified decision-maker contacts tracked across these 30 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 28, 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.