Industry code 69.100 · Oslo
Legal activities in Oslo
There are 968 active companies in legal activities in Oslo. 50 of them were registered in the last 12 months. Together they have 5,380 registered employees. The largest company is Advokatfirmaet Thommessen AS with 370 employees. The oldest, Advokatfirmaet Norman & Co ANS, was founded in 1878. 45% are limited companies.
- Active companies
- 968
- New in the last 12 months
- 50
- Registered employees
- 5,380
- Share of limited companies
- 45 %
The largest companies in legal activities in Oslo
Sorted by number of employees. Figures are from the Register of Legal Entities and the Register of Company Accounts.
| # | Company | Org. no. | Employees | Revenue | Founded |
|---|---|---|---|---|---|
| 1 | Advokatfirmaet Thommessen AS | 957423248 | 370 | NOK 1.9 bn | 1990 |
| 2 | Advokatfirmaet Wiersholm AS | 981371593 | 297 | NOK 1.4 bn | 1999 |
| 3 | Wikborg Rein Advokatfirma AS | 916782195 | 292 | NOK 1.7 bn | 2016 |
| 4 | Advokatfirmaet Bahr AS | 919513063 | 290 | NOK 1.6 bn | 2017 |
| 5 | Advokatfirmaet Haavind AS | 986420177 | 225 | NOK 783.7 m | 2003 |
| 6 | Deloitte Advokatfirma AS | 994116177 | 199 | NOK 732.6 m | 2009 |
| 7 | Kpmg Law Advokatfirma AS | 912056880 | 197 | NOK 445 m | 2013 |
| 8 | Advokatfirmaet Schjødt AS | 996918122 | 188 | NOK 536 m | 2011 |
| 9 | Advokatfirmaet Arntzen AS | 982409705 | 177 | NOK 641.8 m | 2000 |
| 10 | Advokatfirmaet Selmer AS | 920969798 | 164 | NOK 706.1 m | 2018 |
| 11 | Sands Advokatfirma AS | 935597404 | 153 | NOK 749.2 m | 2025 |
| 12 | Advokatfirmaet Simonsen Vogt Wiig AS | 898783812 | 150 | NOK 571.4 m | 2012 |
| 13 | Ernst & Young Advokatfirma AS | 984328796 | 133 | NOK 801.2 m | 2002 |
| 14 | Advokatfirmaet Pricewaterhousecoopers AS | 988371084 | 130 | NOK 487.9 m | 2005 |
| 15 | Kvale Advokatfirma DA | 947996053 | 98 | NOK 420.5 m | 1988 |
| 16 | Elden Advokatfirma AS | 925880426 | 85 | NOK 301 m | 2020 |
| 17 | Bdo Advokater AS | 996798577 | 78 | – | 2011 |
| 18 | Advokatfirmaet Dla Piper Norway AS | 934609255 | 73 | NOK 400.7 m | 2024 |
| 19 | Finansklagenemnda | 971437022 | 73 | NOK 106.2 m | 1970 |
| 20 | Advokatfirmaet Hjort AS | 929191811 | 65 | NOK 321.2 m | 2022 |
| 21 | Bryn Aarflot AS | 979993269 | 65 | NOK 187.3 m | 1998 |
| 22 | Ræder Bing Advokatfirma AS | 919100265 | 63 | NOK 295 m | 2017 |
| 23 | Cedra Advokatfirma AS | 836490312 | 55 | – | 2025 |
| 24 | Advokatfirmaet Føyen AS | 885719392 | 55 | NOK 201.7 m | 2003 |
| 25 | Advokatfirmaet Clp DA | 991341129 | 55 | NOK 302.4 m | 2007 |
Newest companies in legal activities in Oslo
- Advokatfirmaet Jarbekk AS5 Nov 2026
- Olsen Nexus23 Oct 2026
- Advokatfirmaet Rusiti22 Oct 2026
- Juritzen Advokatfirma AS5 Oct 2026
- Plan Horgen15 Sept 2026
- Arne Ringnes10 Sept 2026
- Iva Parlov19 Jul 2026
- Advokatfirma Mg Partner AS8 Jul 2026
- Kristensen Advokat25 Jun 2026
- Johannes Hygen Meyer23 Jun 2026
Frequently asked questions
How many companies in legal activities are there in Oslo?
The Register of Legal Entities lists 968 active companies in legal activities in Oslo. 50 of them were registered in the last 12 months.
Which is the largest company in legal activities in Oslo?
Advokatfirmaet Thommessen AS is the largest by number of employees, with 370 employees. The organisation number is 957423248.
How many people work in legal activities in Oslo?
The companies have 5,380 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 25 of the 25 largest companies have reported employees.
How long have there been companies in legal activities in Oslo?
The oldest active company, Advokatfirmaet Norman & Co ANS, was founded in 1878. 45% of the companies are limited companies.
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 69.100. Figures are updated continuously.