Industry code 43.120 · Oslo
Site preparation in Oslo
There are 167 active companies in site preparation in Oslo. 12 of them were registered in the last 12 months. Together they have 307 registered employees. The largest company is Jr Anlegg AS with 58 employees. The oldest, Anders Johnsen AS, was founded in 1980. 53% are limited companies.
- Active companies
- 167
- New in the last 12 months
- 12
- Registered employees
- 307
- Share of limited companies
- 53 %
The largest companies in site preparation 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 | Jr Anlegg AS | 934763505 | 58 | NOK 291.6 m | 1983 |
| 2 | Gast Entreprenør AS | 987627484 | 53 | NOK 131.3 m | 2004 |
| 3 | Christiania Entreprenør Og Maskin AS | 915651666 | 33 | NOK 66.9 m | 2015 |
| 4 | Enviro Entreprenør AS | 917995427 | 25 | NOK 85.7 m | 2016 |
| 5 | Steinbakken Entreprenør AS | 921061374 | 23 | NOK 38.9 m | 2018 |
| 6 | Hot Mix Oy Finland NUF | 935382653 | 21 | – | – |
| 7 | Stake & Grave Service AS | 936775454 | 14 | NOK 22.9 m | 1985 |
| 8 | Roar Wilhelmsen AS | 922768099 | 13 | NOK 132.1 m | 2019 |
| 9 | Brødrene Hansen Graveservice AS | 877021572 | 8 | NOK 11.8 m | 1996 |
| 10 | Bybonden Transport AS | 925992550 | 8 | NOK 6.5 m | 2020 |
| 11 | Specto Remote AS | 993433802 | 8 | NOK 18.4 m | 2008 |
| 12 | Sanco Solution AS | 925854654 | 6 | NOK 12.2 m | 2020 |
| 13 | Us Operation AS | 934599772 | 6 | NOK 10.2 m | 2024 |
| 14 | Golden Ratio AS | 935115744 | 6 | NOK 464.3k | 2025 |
| 15 | Oslo Grunnarbeid AS | 926821237 | 5 | NOK 7 m | 2021 |
| 16 | Svendsen Fjellsprengning AS | 929366328 | 5 | NOK 12.1 m | 2022 |
| 17 | New Rio AS | 933564053 | 5 | NOK 4.1 m | 2024 |
| 18 | Oslo Landskap AS | 933935841 | 5 | NOK 11 m | 2024 |
| 19 | Service - Jo Egil Klever | 990632081 | 5 | – | – |
| 20 | Hammer Bygg & Graveservice AS | 818588712 | – | NOK 240.5k | 2017 |
| 21 | Ma Betong AS | 819650152 | – | NOK 11.2 m | 2017 |
| 22 | Hallvard Grini Enger | 821895332 | – | – | – |
| 23 | Fsg Holding AS | 827433292 | – | NOK 0 | 2021 |
| 24 | Entreprenør Tore Sandell AS | 828075152 | – | NOK 4.3 m | 2021 |
| 25 | Eivind Holsen Service | 829011492 | – | – | – |
Newest companies in site preparation in Oslo
- Larsen Østlandske Utemiljø10 Oct 2026
- Maskin Thorsen21 Sept 2026
- Robøle Eiendomsservice14 Sept 2026
- Utleiegutta AS10 Sept 2026
- Holmstrøm Anleggsservice16 Jul 2026
- Husein Harake Entrepenør14 Jul 2026
- Oslo Graving Og Betong AS13 May 2026
- Moldovanu Adi Bogdan12 May 2026
- Brekken Maskin16 Apr 2026
- Longvanes Anleggsservice11 Apr 2026
Frequently asked questions
How many companies in site preparation are there in Oslo?
The Register of Legal Entities lists 167 active companies in site preparation in Oslo. 12 of them were registered in the last 12 months.
Which is the largest company in site preparation in Oslo?
Jr Anlegg AS is the largest by number of employees, with 58 employees. The organisation number is 934763505.
How many people work in site preparation in Oslo?
The companies have 307 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 19 of the 25 largest companies have reported employees.
How long have there been companies in site preparation in Oslo?
The oldest active company, Anders Johnsen AS, was founded in 1980. 53% 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 43.120. Figures are updated continuously.