MK
Martin Kosberg
Martin Kosberg is a private shareholder with an estimated portfolio value of NOK 1.0m. Martin Kosberg holds stakes in 3 companies, and roles in several others.
Estimated portfolio value
NOK 1.0m
The sum of estimated values across all known holdings in Norwegian AS/ASA companies
Companies Martin Kosberg owns
| Company | Stake | Value (est.) |
|---|---|---|
| KOSBERG ENTREPRENØR AS | 96.7% | NOK 896,000 |
| MJUKEN UTBYGGING OG DRIFT AS | 0.5% | NOK 5,000 |
| KVIKNE-RENNEBU KRAFTLAG AS | 0.1% | NOK 139,000 |
Roles
Daglig leder
1 selskap
KOSBERG ENTREPRENØR AS
933294072
Innehaver
1 selskap
MARTIN KOSBERG
995021331
Styremedlem
1 selskap
KOSBERG ENTREPRENØR AS
933294072
Active roles recorded in the Register of Business Enterprises / the Central Coordinating Register
Former roles
MJUKEN UTBYGGING OG DRIFT AS
Styremedlem resigned
Roles the person has resigned from, or that have been deregistered
Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 02.09.2026.