Industry code 42 · Oslo
Civil engineering in Oslo
There are 139 active companies in civil engineering in Oslo. 8 of them were registered in the last 12 months. Together they have 12,822 registered employees. The largest company is Bane Nor SF with 5,646 employees. The oldest, Eltel Networks AS, was founded in 1933. 67% are limited companies.
- Active companies
- 139
- New in the last 12 months
- 8
- Registered employees
- 12,822
- Share of limited companies
- 67 %
The largest companies in civil engineering 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 | Bane Nor SF | 917082308 | 5,646 | NOK 20.7 bn | 2016 |
| 2 | Mesta AS | 992804440 | 1,519 | NOK 6.3 bn | 2008 |
| 3 | Af Gruppen Norge AS | 938333572 | 1,483 | NOK 10.1 bn | 1985 |
| 4 | Ncc Norge AS | 911274426 | 722 | NOK 4.6 bn | 1953 |
| 5 | Baneservice AS | 986392912 | 674 | NOK 2.4 bn | 2003 |
| 6 | Eltel Networks AS | 912955915 | 521 | NOK 1.2 bn | 1933 |
| 7 | Hitachi Energy Norway AS | 921186061 | 422 | NOK 3.2 bn | 2018 |
| 8 | Infratek Norge AS | 984277032 | 322 | NOK 950.4 m | 2002 |
| 9 | Netel AS | 983096514 | 300 | NOK 946.6 m | 2001 |
| 10 | Peab Anlegg AS | 913502566 | 183 | NOK 1.4 bn | 2014 |
| 11 | Madonu Bygg Og Anlegg AS | 925390313 | 145 | NOK 61.9 m | 2020 |
| 12 | Transtema Norge AS | 991386343 | 113 | NOK 678.5 m | 2007 |
| 13 | Pa Entreprenør AS | 952159429 | 111 | NOK 273.4 m | 1989 |
| 14 | Ghella S.p.a NUF | 914889782 | 106 | NOK 1.6 bn | – |
| 15 | Infranord Norge AS | 996230007 | 97 | NOK 1.1 bn | 2010 |
| 16 | Fred. Olsen Windcarrier ASA | 988598976 | 75 | NOK 213.2 m | 2005 |
| 17 | Anleggservice Øst AS | 876898462 | 61 | NOK 202 m | 1996 |
| 18 | Energianlegg AS | 991588221 | 51 | NOK 218.5 m | 2007 |
| 19 | Aventi Installation AS | 913825543 | 43 | NOK 153.8 m | 2014 |
| 20 | Copuno Sweden Ab NUF | 915236634 | 41 | NOK 175.3 m | – |
| 21 | Arox Tunnel AS | 926096567 | 34 | NOK 600k | 2020 |
| 22 | Oneco Mobil AS | 925894168 | 28 | NOK 90.7 m | 2020 |
| 23 | Deme Offshore No AS | 929575687 | 28 | NOK 8 m | 2022 |
| 24 | Acciona Construccion S.a. NUF | 914890519 | 26 | NOK 415.2 m | – |
| 25 | Østlandske Vei Og Betong AS | 985475628 | 20 | NOK 47.3 m | 2003 |
Newest companies in civil engineering in Oslo
- Norge Entrepreneur Ltd NUF20 Oct 2026
- Newton Ground Engineering (Eu) AS9 Sept 2026
- Eirewest AS9 Sept 2026
- Ncl AS9 Sept 2026
- Votruba Anlegg Og Va29 Jun 2026
- Nexus Core Systems Norway AS20 Mar 2026
- Brusetkollen SA23 Dec 2025
- Hagem Dykke Lyche17 Dec 2025
- Karl Engebretsen26 Sept 2025
- Gruber-Hofer Metalltechnik Gmbh NUF22 Aug 2025
Frequently asked questions
How many companies in civil engineering are there in Oslo?
The Register of Legal Entities lists 139 active companies in civil engineering in Oslo. 8 of them were registered in the last 12 months.
Which is the largest company in civil engineering in Oslo?
Bane Nor SF is the largest by number of employees, with 5,646 employees. The organisation number is 917082308.
How many people work in civil engineering in Oslo?
The companies have 12,822 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 civil engineering in Oslo?
The oldest active company, Eltel Networks AS, was founded in 1933. 67% of the companies are limited companies.
Sub-industries in Oslo
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 42. Figures are updated continuously.