Norway's largest law firms
Companies providing legal services.
The register holds 2 054 law firms with filed revenue. Together they turn over NOK 27.6bn and employ 7 106 people. The largest is ADVOKATFIRMAET THOMMESSEN AS, with NOK 1.9bn in revenue. The highest operating result belongs to ADVOKATFIRMAET THOMMESSEN AS, at NOK 974.1m. The median operating margin is 16.5% across the 244 companies with real trading substance. Most are based in Oslo (654 companies).
2 054Companies
NOK 27.6bnCombined revenue
7 106Employees
16.5%Median operating margin
Ranking
Largest by revenue
Ranked by the most recently reported operating revenue.
#
Company
Amount
1
ADVOKATFIRMAET THOMMESSEN AS
org.nr 957423248 · Oslo, Oslo
NOK 1.9bn
2
WIKBORG REIN ADVOKATFIRMA AS
org.nr 916782195 · Oslo, Oslo
NOK 1.7bn
3
ADVOKATFIRMAET BAHR AS
org.nr 919513063 · Oslo, Oslo
NOK 1.6bn
4
ADVOKATFIRMAET WIERSHOLM AS
org.nr 981371593 · Oslo, Oslo
NOK 1.4bn
5
ERNST & YOUNG ADVOKATFIRMA AS
org.nr 984328796 · Oslo, Oslo
NOK 801.2m
6
ADVOKATFIRMAET HAAVIND AS
org.nr 986420177 · Oslo, Oslo
NOK 783.7m
7
SANDS ADVOKATFIRMA AS
org.nr 935597404 · Oslo, Oslo
NOK 749.2m
8
DELOITTE ADVOKATFIRMA AS
org.nr 994116177 · Oslo, Oslo
NOK 732.6m
9
ADVOKATFIRMAET SELMER AS
org.nr 920969798 · Oslo, Oslo
NOK 706.1m
10
CMS KLUGE ADVOKATFIRMA AS
org.nr 913296117 · Stavanger, Rogaland
NOK 699.6m
11
ADVOKATFIRMAET ARNTZEN AS
org.nr 982409705 · Oslo, Oslo
NOK 641.8m
12
ADVOKATFIRMAET SIMONSEN VOGT WIIG AS
org.nr 898783812 · Oslo, Oslo
NOK 571.4m
13
ADVOKATFIRMAET SCHJØDT AS
org.nr 996918122 · Oslo, Oslo
NOK 536.0m
14
ADVOKATFIRMAET PRICEWATERHOUSECOOPERS AS
org.nr 988371084 · Oslo, Oslo
NOK 487.9m
15
KPMG LAW ADVOKATFIRMA AS
org.nr 912056880 · Oslo, Oslo
NOK 436.7m
16
KVALE ADVOKATFIRMA DA
org.nr 947996053 · Oslo, Oslo
NOK 420.5m
17
ADVOKATFIRMAET DLA PIPER NORWAY AS
org.nr 934609255 · Oslo, Oslo
NOK 400.7m
18
ADVOKATFIRMAET HJORT AS
org.nr 929191811 · Oslo, Oslo
NOK 321.2m
19
ADVOKATFIRMAET CLP DA
org.nr 991341129 · Oslo, Oslo
NOK 302.4m
20
ELDEN ADVOKATFIRMA AS
org.nr 925880426 · Oslo, Oslo
NOK 301.0m
21
RÆDER BING ADVOKATFIRMA AS
org.nr 919100265 · Oslo, Oslo
NOK 295.0m
22
ADVOKATFIRMAET BULL AS
org.nr 981459326 · Oslo, Oslo
NOK 233.3m
23
BDO ADVOKATER AS
org.nr 996798577 · Oslo, Oslo
NOK 230.8m
24
BRÆKHUS ADVOKATFIRMA AS
org.nr 933326071 · Oslo, Oslo
NOK 215.8m
25
ADVOKATFIRMAET FØYEN AS
org.nr 885719392 · Oslo, Oslo
NOK 201.7m
Showing 25 companies
Ranking
Most profitable
Ranked by the most recently reported operating profit (EBIT).
#
Company
Amount
1
ADVOKATFIRMAET THOMMESSEN AS
org.nr 957423248 · Oslo, Oslo
NOK 974.1m
2
WIKBORG REIN ADVOKATFIRMA AS
org.nr 916782195 · Oslo, Oslo
NOK 900.6m
3
ADVOKATFIRMAET BAHR AS
org.nr 919513063 · Oslo, Oslo
NOK 671.4m
4
ADVOKATFIRMAET WIERSHOLM AS
org.nr 981371593 · Oslo, Oslo
NOK 599.3m
5
ADVOKATFIRMAET HAAVIND AS
org.nr 986420177 · Oslo, Oslo
NOK 327.5m
6
ADVOKATFIRMAET SCHJØDT AS
org.nr 996918122 · Oslo, Oslo
NOK 315.3m
7
ADVOKATFIRMAET SELMER AS
org.nr 920969798 · Oslo, Oslo
NOK 314.7m
8
ADVOKATFIRMAET ARNTZEN AS
org.nr 982409705 · Oslo, Oslo
NOK 309.2m
9
SANDS ADVOKATFIRMA AS
org.nr 935597404 · Oslo, Oslo
NOK 296.8m
10
CMS KLUGE ADVOKATFIRMA AS
org.nr 913296117 · Stavanger, Rogaland
NOK 272.5m
11
KVALE ADVOKATFIRMA DA
org.nr 947996053 · Oslo, Oslo
NOK 166.7m
12
ADVOKATFIRMAET SIMONSEN VOGT WIIG AS
org.nr 898783812 · Oslo, Oslo
NOK 163.3m
13
ADVOKATFIRMAET DLA PIPER NORWAY AS
org.nr 934609255 · Oslo, Oslo
NOK 127.9m
14
ADVOKATFIRMAET HJORT AS
org.nr 929191811 · Oslo, Oslo
NOK 107.5m
15
DELOITTE ADVOKATFIRMA AS
org.nr 994116177 · Oslo, Oslo
NOK 84.4m
16
ADVOKATFIRMAET PRICEWATERHOUSECOOPERS AS
org.nr 988371084 · Oslo, Oslo
NOK 81.1m
17
BRÆKHUS ADVOKATFIRMA AS
org.nr 933326071 · Oslo, Oslo
NOK 69.2m
18
ADVOKATFIRMAET BULL AS
org.nr 981459326 · Oslo, Oslo
NOK 67.7m
19
ADVOKATFIRMAET GLITTERTIND AS
org.nr 916284055 · Oslo, Oslo
NOK 65.8m
20
KPMG LAW ADVOKATFIRMA AS
org.nr 912056880 · Oslo, Oslo
NOK 65.3m
21
RO SOMMERNES ADVOKATFIRMA DA
org.nr 965870016 · Oslo, Oslo
NOK 63.6m
22
ELDEN ADVOKATFIRMA AS
org.nr 925880426 · Oslo, Oslo
NOK 49.3m
23
ADVOKATFIRMAET FØYEN AS
org.nr 885719392 · Oslo, Oslo
NOK 48.8m
24
HAVER ADVOKATFIRMA AS
org.nr 817252532 · Stavanger, Rogaland
NOK 45.3m
25
RIISA ADVOKATFIRMA ANS
org.nr 947280740 · Oslo, Oslo
NOK 44.2m
Showing 25 companies
Ranking
Highest operating margin
Operating profit as a percentage of revenue. Only companies with at least 5 employees and more than NOK 5m in revenue.
#
Company
Operating margin
1
ADVOKATFIRMAET STERRI, REHMAN OG HENRIKSEN AS
org.nr 992585749 · Oslo, Oslo
59.5%
2
ADVOKATFIRMAET SCHJØDT AS
org.nr 996918122 · Oslo, Oslo
58.8%
3
ADVOKATFIRMAET STORRVIK AS
org.nr 929474635 · Oslo, Oslo
57.0%
4
ADVOKATFIRMAET ECKHOFF FOSMARK & CO DA
org.nr 855197812 · Oslo, Oslo
54.2%
5
ADVOKATFIRMAET TASHAKORI AS
org.nr 934626176 · Oslo, Oslo
53.2%
6
CON.TAX.NOR ADVOKATFIRMA AS
org.nr 992424834 · Oslo, Oslo
53.0%
7
ADVOKATFIRMAET TORGERSEN AS
org.nr 819854602 · Asker, Akershus
53.0%
8
WIKBORG REIN ADVOKATFIRMA AS
org.nr 916782195 · Oslo, Oslo
52.1%
9
ADVOKATFIRMAET THOMMESSEN AS
org.nr 957423248 · Oslo, Oslo
51.2%
10
GRINDSTAD LYDERSEN ADVOKATFIRMA AS
org.nr 989208160 · Sarpsborg, Østfold
50.6%
11
ADVOKATFIRMAET ARNTZEN AS
org.nr 982409705 · Oslo, Oslo
48.2%
12
ADVOKATFIRMA DREVLAND & GRAPE DA
org.nr 980060756 · Oslo, Oslo
47.7%
13
ADVOKATFIRMAET VITEN AS
org.nr 930747920 · Oslo, Oslo
47.3%
14
RIISA ADVOKATFIRMA ANS
org.nr 947280740 · Oslo, Oslo
46.0%
15
ADVOKATSELSKAPET JUSTITIA AS
org.nr 977557445 · Tromsø, Troms
45.6%
16
ADVOKATFIRMA WIGEMYR & CO DA
org.nr 977049997 · Kristiansand, Agder
44.8%
17
ADVOKATFIRMAET SELMER AS
org.nr 920969798 · Oslo, Oslo
44.6%
18
ADVOKATFIRMAET THALLAUG ANS
org.nr 950522550 · Lillehammer, Innlandet
44.5%
19
ADVOKATFIRMAET SIMONSEN VOGT WIIG KRISTIANSAND DA
org.nr 988343412 · Kristiansand, Agder
43.9%
20
AGP ADVOKATER AS
org.nr 923559841 · Oslo, Oslo
43.7%
21
SØRLANDSADVOKATENE DA
org.nr 885722512 · Kristiansand, Agder
43.5%
22
ADVOKATFIRMAET WIERSHOLM AS
org.nr 981371593 · Oslo, Oslo
43.3%
23
ADVOKATFIRMAET BAHR AS
org.nr 919513063 · Oslo, Oslo
42.8%
24
ADVOKATFIRMAET HAAVIND AS
org.nr 986420177 · Oslo, Oslo
41.8%
25
ADVOKATFIRMAET MAGELI DA
org.nr 880636502 · Hamar, Innlandet
41.7%
Showing 25 companies
Ranking
Largest employers
Ranked by registered headcount.
#
Company
Employees
1
ADVOKATFIRMAET THOMMESSEN AS
org.nr 957423248 · Oslo, Oslo
357
2
ADVOKATFIRMAET WIERSHOLM AS
org.nr 981371593 · Oslo, Oslo
291
3
WIKBORG REIN ADVOKATFIRMA AS
org.nr 916782195 · Oslo, Oslo
278
4
ADVOKATFIRMAET BAHR AS
org.nr 919513063 · Oslo, Oslo
259
5
ADVOKATFIRMAET HAAVIND AS
org.nr 986420177 · Oslo, Oslo
221
6
KPMG LAW ADVOKATFIRMA AS
org.nr 912056880 · Oslo, Oslo
192
7
DELOITTE ADVOKATFIRMA AS
org.nr 994116177 · Oslo, Oslo
190
8
ADVOKATFIRMAET SCHJØDT AS
org.nr 996918122 · Oslo, Oslo
186
9
ADVOKATFIRMAET ARNTZEN AS
org.nr 982409705 · Oslo, Oslo
175
10
ADVOKATFIRMAET SELMER AS
org.nr 920969798 · Oslo, Oslo
162
11
SANDS ADVOKATFIRMA AS
org.nr 935597404 · Oslo, Oslo
161
12
CMS KLUGE ADVOKATFIRMA AS
org.nr 913296117 · Stavanger, Rogaland
153
13
ADVOKATFIRMAET SIMONSEN VOGT WIIG AS
org.nr 898783812 · Oslo, Oslo
146
14
ADVOKATFIRMAET PRICEWATERHOUSECOOPERS AS
org.nr 988371084 · Oslo, Oslo
131
15
ERNST & YOUNG ADVOKATFIRMA AS
org.nr 984328796 · Oslo, Oslo
131
16
KVALE ADVOKATFIRMA DA
org.nr 947996053 · Oslo, Oslo
97
17
ELDEN ADVOKATFIRMA AS
org.nr 925880426 · Oslo, Oslo
83
18
ADVOKATFIRMAET DLA PIPER NORWAY AS
org.nr 934609255 · Oslo, Oslo
76
19
BDO ADVOKATER AS
org.nr 996798577 · Oslo, Oslo
75
20
FINANSKLAGENEMNDA
org.nr 971437022 · Oslo, Oslo
67
21
RÆDER BING ADVOKATFIRMA AS
org.nr 919100265 · Oslo, Oslo
65
22
BRYN AARFLOT AS
org.nr 979993269 · Oslo, Oslo
65
23
ADVOKATFIRMAET HJORT AS
org.nr 929191811 · Oslo, Oslo
61
24
BRÆKHUS ADVOKATFIRMA AS
org.nr 933326071 · Oslo, Oslo
58
25
ADVOKATFIRMAET CLP DA
org.nr 991341129 · Oslo, Oslo
55
Showing 25 companies
Geography
Where law firms are based
County
Number of companiesActivity codes included
This industry gathers the following SN2007 activity codes. Each code also has its own overview page.
About the figures
Figures are the latest annual accounts filed with the Register of Company Accounts, matched to the activity code the company carries in the Central Coordinating Register. A company lands in an industry on the strength of that registered code, not an assessment of what it actually does.
The operating-margin list and the median use only the 244 companies with at least 5 employees and over 5 mill. kr in revenue, so a small company with erratic figures cannot top the list.
11 companies are held out because their operating margin exceeds 75% – far above the norm for this industry. That is almost always a wrong activity code or fair-value gains booked as operating revenue, not trading.
Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 02.09.2026.
Changes
Latest changes among law firms
16.09.2026
ADVOKATHUSET JUSTISIA AS
org.nr 924455977 · Sarpsborg, Østfold
Name change
16.09.2026
ADVOKAT NIELS - CHRISTIAN HOLM AS
org.nr 879943132 · Asker, Akershus
Name change, Activity code change
15.09.2026
XPARTNERS NORWAY HOLDING AS
org.nr 934045181 · Oslo, Oslo
Activity code change
15.09.2026
ADVOKAT TORE SVEEN AS
org.nr 989228226 · Trondheim, Trøndelag
Activity code change
15.09.2026
OSIRIO AS
org.nr 923945113 · Oslo, Oslo
Activity code change
15.09.2026
HARPERS HOLDING AS
org.nr 932022842 · Hamar, Innlandet
Activity code change
Other industries
These lists show actual registered figures from public sources (the Brønnøysund registers). They are not an assessment of creditworthiness, solidity or suitability as a customer, supplier or investment. Figures are for the most recently reported financial year.