Industry code 08 · Oslo
Other mining and quarrying in Oslo
There are 29 active companies in other mining and quarrying in Oslo. 1 of them were registered in the last 12 months. Together they have 34 registered employees. The largest company is Norock & Co AS with 10 employees. The oldest, AS Norsk Labrador- & Granitindustri, was founded in 1911. 76% are limited companies.
- Active companies
- 29
- New in the last 12 months
- 1
- Registered employees
- 34
- Share of limited companies
- 76 %
The largest companies in other mining and quarrying 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 | Norock & Co AS | 846272712 | 10 | NOK 101.3 m | 1987 |
| 2 | Stonetech AS | 921320728 | 7 | NOK 3.2 m | 2018 |
| 3 | Glærum Kalksteingruve AS | 960593871 | 7 | NOK 6.9 m | 1991 |
| 4 | Norkalsitt AS | 957031110 | 5 | NOK 1.8 m | 1990 |
| 5 | Grorud Granitt Og Skifer AS | 984369379 | 5 | NOK 20.6 m | 2002 |
| 6 | Nordic Minerals AS | 836743032 | – | – | 2025 |
| 7 | Nlg Holding AS | 888958452 | – | NOK 0 | 2005 |
| 8 | Isabelle Marietta Karine Rosé | 890575382 | – | – | – |
| 9 | AS Norsk Labrador- & Granitindustri | 914783534 | – | NOK 734.3k | 1911 |
| 10 | Trygve Ollendorff | 915200303 | – | – | – |
| 11 | Al-Khidmat Gravstein AS | 918672230 | – | NOK 577k | 2017 |
| 12 | Dumas Capital AS | 919207299 | – | – | 2017 |
| 13 | Porthos Capital AS | 919207337 | – | – | 2017 |
| 14 | Magnesium Alloys Norway AS | 921045298 | – | – | 2018 |
| 15 | Poseidon Offshore Mining AS | 923640096 | – | – | 2019 |
| 16 | Srk Exploration Services Limited | 925602604 | – | – | – |
| 17 | Green Minerals AS | 925852481 | – | – | 2020 |
| 18 | Ascent Graphite AS | 928132250 | – | – | 2021 |
| 19 | Bleka Gruber AS | 930075760 | – | NOK 64k | 1936 |
| 20 | United Minerals AS | 935249562 | – | – | 2025 |
| 21 | Metall AS | 935457084 | – | – | 2025 |
| 22 | Ø Invest AS | 950875917 | – | NOK 141.5k | 1988 |
| 23 | Frode Kamp | 980157547 | – | – | – |
| 24 | Irene Alice Gusdal | 987911492 | – | – | – |
| 25 | Gab Gesellschaft Zur Aufbereitung Von Baustoffen Mbh | 991800964 | – | – | – |
Newest companies in other mining and quarrying in Oslo
- Nordic Minerals AS10 Dec 2025
- Metall AS7 May 2025
- United Minerals AS21 Mar 2025
- Ascent Graphite AS22 Nov 2021
- Green Minerals AS6 Nov 2020
- Srk Exploration Services Limited15 Sept 2020
- Poseidon Offshore Mining AS21 Oct 2019
- Stonetech AS30 Aug 2018
- Magnesium Alloys Norway AS22 Jun 2018
- Dumas Capital AS27 Jun 2017
Frequently asked questions
How many companies in other mining and quarrying are there in Oslo?
The Register of Legal Entities lists 29 active companies in other mining and quarrying in Oslo. 1 of them were registered in the last 12 months.
Which is the largest company in other mining and quarrying in Oslo?
Norock & Co AS is the largest by number of employees, with 10 employees. The organisation number is 846272712.
How many people work in other mining and quarrying in Oslo?
The companies have 34 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 5 of the 25 largest companies have reported employees.
How long have there been companies in other mining and quarrying in Oslo?
The oldest active company, AS Norsk Labrador- & Granitindustri, was founded in 1911. 76% 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 08. Figures are updated continuously.