Company lists · Data refreshed September 2026
Top 25 Corporate law firms based in Oslo, Norway
RevenueBase identified 93 corporate law firms headquartered in Oslo, Norway as of September 2026 and tracks 2,870 professional contacts across them, including 1,195 with verified work emails and 111 with mobile numbers. Oslo is the largest hub.
This list covers corporate law firms 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 9, 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.
The 25 largest corporate law firms based in Oslo, Norway
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 386 contacts → | ||||
Partial evidence “Wikborg Rein is an international law firm with headquarters in Oslo and offices in Bergen, London, Singapore and Shanghai.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 2 | 334 contacts → | ||||
Indirect evidence “The roots of Advokatfirmaet Wiersholm extend back to 1875.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 3 | 230 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 9, 2026Thanks. The Data Team will review it. | |||||
| 4 | 211 contacts → | ||||
Strong evidence “Advokatfirmaet Selmer was founded in 1985 and is one of the largest and most recognized corporate law firms in Norway.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 5 | 132 contacts → | ||||
Partial evidence “We assist our clients with advice and procedural assignments in all key areas of law.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 6 | 118 contacts → | ||||
Partial evidence “Law firm based in Oslo, Norway with branch offices in Bergen, Sandefjord, Stavanger, Gol, Haugesund, Tromsø and Hamar.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 7 | 94 contacts → | ||||
Indirect evidence “Ræder Bing er et ledende advokatfirma med bred forretningsjuridisk kompetanse.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 8 | 84 contacts → | ||||
Indirect evidence “Brækhus has extensive and specialized experience in assisting clients doing business in Norway.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 9 | 80 contacts → | ||||
Partial evidence “Advokatfirmaet Føyen AS is one of Norway's leading law firms within its specialist fields of real estate, ICT media and employment.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 10 | 48 contacts → | ||||
Partial evidence “Codex Law Firm provides general legal services and is a trusted partner for all legal issues.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 11 | 41 contacts → | ||||
Partial evidence “Dalan Law firm was founded in 1992 following a merger between the firms Dalan, Sigmond and Swang (founded in 1876) and the lawyers Lous, Hagemann, Arff-Pettersen and Løken…” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 12 | 41 contacts → | ||||
Indirect evidence “Solver bistår både virksomheter og privatpersoner med problemløsning i vid forstand – vi tenker lengre enn den enkeltstående konflikten som har oppstått.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Indirect evidence “Our history stretches back nearly 150 years.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 14 | 32 contacts → | ||||
Indirect evidence “Advokatfirmaet Legalis AS bistår privatpersoner innen alle sivile rettsområder, blant annet arv, skifte, familierett, fast eiendom, kjøpsrett og trygderett.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 15 | 28 contacts → | ||||
Partial 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 9, 2026Thanks. The Data Team will review it. | |||||
| 16 | 28 contacts → | ||||
Indirect evidence “Aurlien Vordahl & Co Advokatfirma AS tilbyr høyt kvalifisert juridisk bistand til privatpersoner, bedrifter, organisasjoner og foreninger innenfor en rekke rettsområder.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 17 | 24 contacts → | ||||
Strong evidence “AGP is a transactions, capital markets and corporate focussed law firm in Oslo, Norway.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Indirect evidence “RIISA har spesialkompetanse innen erstatnings- og forsikringsrett med bistand opp mot de fleste forsikringsselskaper i Norge.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 19 | 23 contacts → | ||||
Indirect evidence “Advokatfirmaet Rogstad ble stiftet i 2014 og leverer juridiske tjenester til privatpersoner og bedrifter.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Indirect 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 9, 2026Thanks. The Data Team will review it. | |||||
| 21 | 19 contacts → | ||||
Indirect evidence “Advokatfirmaet Molteberg Nilsen AS er et fullservice advokatfirma som holder til i flotte kontorer sentralt på Majorstuen.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 22 | 18 contacts → | ||||
Indirect evidence “Hos Advokatfirmaet Lippestad er vi store nok til å håndtere komplekse juridiske utfordringer, men små nok til å gi personlig oppfølging.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence “Varder er et samarbeid mellom Advokatfirmaet Hulaas og HCA Revisjon & Rådgivning.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 24 | 16 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 contacts → | ||||
Partial evidence “Helmr is a commercial law firm focusing on employment law and HR, based in Oslo, Norway.” Source: RevenueBase Database · checked Sep 9, 2026Thanks. The Data Team will review it. | |||||
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: corporate law firms. 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 corporate law firms.
- Partial evidence
- Its own public description names part of corporate law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name corporate law firms. 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 93 corporate law firms based in Oslo, Norway
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Corporate law firms based in Oslo, Norway at a glance
As of Sep 9, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 11.0dCompany record updated
Median 61.0dHow 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 law firms, 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 law firms”. 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 law firms), 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 law firms, 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, 1,195 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 9, 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.
Corporate law firms by metro in Norway
- Corporate law firms in Oslo102
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 law firms, 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 law firms are there based in Oslo, Norway?
RevenueBase identified 93 corporate law firms 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?
Wikborg Rein, headquartered in Oslo, tops this list with the largest team on record.
Which city has the most corporate law firms?
Oslo leads with 102 headquartered companies, followed by Bergen (12) and Stavanger (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 1,195 verified decision-maker contacts tracked across these 93 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 9, 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.