Norway25+ companies

Companies in Oslo

Free directory of companies headquartered in Oslo, Norway. Click any entry below for the full annual report history, board members and ownership structure, sourced directly from Brønnøysundsregistrene.

Top companies by revenue

20 ranked

1
Elkjøp Norge ASAS
Retail sale of electrical household appliancesOrg 947054600
Revenue
NOK 13.9bn
Employees
2,508
Est.
1988
2
Af Gruppen Norge ASAS
Construction of bridges and tunnelsOrg 938333572
Revenue
NOK 10.1bn
Employees
1,514
Est.
1985
3
Mestergruppen Byggevare ASAS
Wholesale of wood, construction materials and sanitary equipmentOrg 997166221
Revenue
NOK 8.8bn
Employees
676
Est.
2011
4
Elkem ASAASA
Manufacture of other inorganic basic chemicalsOrg 911382008
Revenue
NOK 8.5bn
Employees
1,619
Est.
1904
5
If Skadeforsikring NufNUF
Non-life insuranceOrg 981290666
Revenue
NOK 7.4bn
Employees
1,746
Est.
1999
6
Multiconsult Norge ASAS
Engineering activities and related technical consultancyOrg 918836519
Revenue
NOK 5.2bn
Employees
2,871
Est.
2017
7
Clas Ohlson ASAS
Other non-specialised retail saleOrg 937402198
Revenue
NOK 4.7bn
Employees
2,030
Est.
1985
8
Caverion Norge ASAS
Electrical installationOrg 959069743
Revenue
NOK 3.8bn
Employees
1,804
Est.
1990
9
Ark Bokhandel ASAS
Retail sale of booksOrg 911100797
Revenue
NOK 2.0bn
Employees
1,256
Est.
1978
10
Norli ASAS
Retail sale of booksOrg 913820509
Revenue
NOK 2.0bn
Employees
1,442
Est.
1972
11
Unibuss ASAS
Scheduled passenger transport by roadOrg 985615616
Revenue
NOK 1.7bn
Employees
1,284
Est.
2003
12
Lindex ASAS
Retail sale of clothingOrg 819282102
Revenue
NOK 1.5bn
Employees
1,122
Est.
1969
13
Danske Bank A/S NufNUF
Other monetary intermediationOrg 977074010
Revenue
NOK 1.4bn
Employees
622
Est.
1997
14
Stiftelsen SignoSTI
Residential nursing care activitiesOrg 970533427
Revenue
NOK 848.3m
Employees
1,513
Est.
1987
15
Zero Five ASAS
Restaurant activitiesOrg 951816981
Revenue
NOK 844.5m
Employees
1,319
Est.
1989
16
Personalhuset Staffing Group ASAS
Temporary employment agency activities and other human resource provisionsOrg 982742765
Revenue
NOK 733.5m
Employees
3,063
Est.
2000
17
Jag Assistanse ASAS
Social work activities without accommodation for older persons or persons with disabilitiesOrg 995256339
Revenue
NOK 272.0m
Employees
1,084
Est.
2010
18
Enora ASAS
Accounting, bookkeeping and auditing activities; tax consultancyOrg 935701430
Revenue
NOK 75.1m
Employees
638
Est.
2025
19
Norges Røde KorsFLI
Other social work activities without accommodation n.e.c.Org 864139442
Revenue
NOK 0
Employees
1,185
Est.
1865
20
Oslo Kommune Bydel 2 GrunerløkkaORGL
Regulation of health care, education, cultural services and other social servicesOrg 870534612
Revenue
—
Employees
1,829
Est.
1989

Oslo in numbers

Measured by latest reported revenue, Elkjøp Norge AS is the largest company headquartered in Oslo that Riskpilot has indexed, with a reported revenue of NOK 13.9bn. It is followed by Af Gruppen Norge AS and Mestergruppen Byggevare AS. The 20 companies on this page span 19 different industries; the most common is Retail sale of books, which accounts for 2 of them. The longest-established name on the list, Norges Røde Kors, dates back to 1865, while the newest entry was founded in 2025.

Companies indexed: 25+
Largest by revenue: Elkjøp Norge AS
Industries on this page: 19
Established since: 1865

Top industries in Oslo

Industry breakdown not yet available for this municipality.

About companies in Oslo

Oslo is a municipality in Norway. Riskpilot tracks every active company headquartered in Oslo and registered with Brønnøysundsregistrene, exposing the full annual report history, ownership structure and board composition for each entity.

Companies are ranked by latest reported revenue. Use the industry breakdown above to drill into the specific NACE sector most relevant to your market analysis. Every page is free, no account required, and indexable in full by search engines.