Company lists · Data refreshed September 2026
Top 25 Securities law firms based in Norway
RevenueBase identified 44 securities law firms headquartered in Norway as of September 2026 and tracks 1,121 professional contacts across them, including 550 with verified work emails and 52 with mobile numbers. Oslo is the largest hub.
This list covers securities law firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 securities law firms based in Norway
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 334 | ||||
“The roots of Advokatfirmaet Wiersholm extend back to 1875.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 231 | ||||
“Haavind is one of Norway’s leading law firms.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 211 | ||||
“Advokatfirmaet Selmer was founded in 1985 and is one of the largest and most recognized corporate law firms in Norway.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 44 | ||||
“I over 100 år har Haver Advokatfirma vært en trygg juridisk partner for næringslivet.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 27 | ||||
“Advokatfirmaet Dehn har kompetanse og erfaring på de fleste rettsområder, og bistår både virksomheter, privatpersoner og det offentlige.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 24 | ||||
“AGP is a transactions, capital markets and corporate focussed law firm in Oslo, Norway.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 14 | ||||
“Advokatfirmaet Mageli har kontorer i Hamar, Lillestrøm og Oslo.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 12 | ||||
“Advokatfirmaet Tollefsen starta i 1990 som eit enkeltmannsforetak i kontorfellesskap med 2 andre advokatar.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 10 | ||||
“Aabø-Evensen & Co is a Norwegian boutique law firm with main focus on M&A and Capital Markets transactions The firm has a proven track record of delivering excellent quality legal…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 9 | ||||
“The law firm HOFFMANN THINN assists clients in a wide range of business areas.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 | ||||
“Advokatfirmaet Frøy holder til sentralt på Lysaker, tett på vår lokalregion Asker og Bærum.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 | ||||
“Rådgivning | Transaksjoner | Prosedyre” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | BULLIndirect evidence | 5 | |||
“Bull was founded in 1864.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 | ||||
“Advokatfirmaet Rekve Pleym er ett av de ledende advokatfirmaene i Nord-Norge.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 | ||||
“Advokatfirmaet Forsberg ble startet i 2010 av en gruppe advokater med lang erfaring innenfor forretningsjuss.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Advokatfirmaet TorstrupPartial evidence | 4 | |||
“Torstrup is one of Stavanger's leading law firms, specializing in litigation and arbitration, business law, real estate law, criminal law and familiy law.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 | ||||
“Skjerpen Bugge Advokatfirma AS satser på kjøpsrett, erstatning-og forsikringsrett, naborett, pengekrav, avtale-og kontraktsrett, arbeidsrett, selskapsrett og entrepriserett.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 | ||||
“Casus dekker et bredt spekter av fagområder, men konsentrerer selskapets virksomhet rundt utvalgte fagområder hvor selskapet har lang og omfattende erfaring i rådgivning og…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 | ||||
“Hjelseth Advokatfirma hjelper private selskaper og personer med juridiske problemstillinger i nærings- og arbeidslivet.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 | ||||
“Advokatfirma Lunde Robertsen er et spesialisert advokatfirma som jobber innen de fleste forretningsjuridiske rettsområder.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 | ||||
“Advokatfirmaet Grønvigh, Tjersland & Indrevær DA er et advokatfirma med kontor i Oslo, og våre advokater bistår bredt innen de forretningsjuridiske områdene.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 | ||||
“Riid Advokatfirma leverer juridiske tjenester i tverrsnittet av næringslivets viktigste økonomiske områder.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Advokatfirmaet Judicia DAIndirect evidence | 1 | |||
“JUDICIA er et moderne advokatfirma med solid erfaring i bunn.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 | ||||
“Advokatfirmaet Kolbjørnsen Cyvin AS er et rendyrket forretningsadvokatfirma, og vår visjon er å være det foretrukne valget for høykvalitets, spesialiserte forretningsjuridiske…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 | ||||
“Birk sine kjerneområder er eiendom og selskapsrett.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 44 securities law firms based in Norway
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Securities law firms based in Norway at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 securities law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Norway whose own description of what they do matches “securities law firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among securities law firms, 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 an evidence 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, 550 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 6, 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
How many securities law firms are there based in Norway?
RevenueBase identified 44 securities law firms 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?
Wiersholm, headquartered in Oslo, tops this list with the largest team on record.
Which city has the most securities law firms?
Oslo leads with 20 headquartered companies, followed by Bergen (3) and Alesund (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 550 verified decision-maker contacts tracked across these 44 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 6, 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 SmartSearch, 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.