Company lists · Data refreshed September 2026
Top 25 Biglaw firms based in Oslo, Norway
RevenueBase identified 54 biglaw firms headquartered in Oslo, Norway as of September 2026 and tracks 2,039 professional contacts across them, including 851 with verified work emails. Across Norway, Oslo is the largest hub for this category.
This list covers biglaw 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 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.
The 25 largest biglaw firms based in Oslo, Norway
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 386 contacts → | ||||
Indirect 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 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 211 contacts → | ||||
Indirect 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 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 132 contacts → | ||||
Indirect evidence “We assist our clients with advice and procedural assignments in all key areas of law.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 118 contacts → | ||||
Indirect evidence “Law firm based in Oslo, Norway with branch offices in Bergen, Sandefjord, Stavanger, Gol, Haugesund, Tromsø and Hamar.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 94 contacts → | ||||
Indirect evidence “Ræder Bing er et ledende advokatfirma med bred forretningsjuridisk kompetanse.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 41 contacts → | ||||
Indirect 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 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 28 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 24 contacts → | ||||
Indirect evidence “AGP is a transactions, capital markets and corporate focussed law firm in Oslo, Norway.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 23 contacts → | ||||
Indirect evidence “Advokatfirmaet Rogstad ble stiftet i 2014 og leverer juridiske tjenester til privatpersoner og bedrifter.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 18 contacts → | ||||
Indirect evidence “With us, you'll encounter a personal, knowledgeable, and inclusive law firm with an efficient, dedicated, and experienced team of personal advisors.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 14 contacts → | ||||
Indirect evidence “Dæhlin Sand advokatfirma - DSA - er et spesialistfirma med hovedfokus på eiendom, fornybar energi og miljø.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 13 contacts → | ||||
Indirect evidence “Wahl-Larsen Advokatfirma AS is a law firm centrally situated in Oslo, founded in 1874.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 13 contacts → | ||||
Indirect evidence “Hulaas law firm was founded in 2010, continuing the law practice of Koren, Hulaas & Storm that started up in 1974.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 10 contacts → | ||||
Indirect evidence “Advokatfirmaet Ness Lundin startet opp i 1990 og har jobbet med erstatningsrett fra begynnelsen av.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Indirect evidence “Fend specializes in dispute resolution, litigation and financial crime.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Indirect evidence “Advokatfirmaet Strandenæs is a commercial law firm based in Oslo.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “SKARP er et nisjeadvokatfirma bygget på en desentralisert modell.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Indirect evidence “Advokatfirmaet Forsberg ble startet i 2010 av en gruppe advokater med lang erfaring innenfor forretningsjuss.” Source: RevenueBase Database · checked Sep 28, 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: biglaw 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 biglaw firms.
- Partial evidence
- Its own public description names part of biglaw firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name biglaw 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 54 biglaw firms based in Oslo, Norway
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Biglaw firms based in Oslo, Norway at a glance
As of Sep 28, 2026Companies by employee count
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 54 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 biglaw 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 “biglaw 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 biglaw 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 biglaw 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, 851 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 biglaw 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 biglaw firms are there based in Oslo, Norway?
RevenueBase identified 54 biglaw 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 in Norway has the most biglaw firms?
Oslo leads Norway with 54 headquartered companies, followed by Stavanger (7) and Bergen (6).
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 851 verified decision-maker contacts tracked across these 54 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.