Martin Kosberg is a private shareholder. Martin Kosberg holds stakes in 3 companies, and roles in several others.

Companies Martin Kosberg owns

Company	Stake
KOSBERG ENTREPRENØR AS	96.7%
MJUKEN UTBYGGING OG DRIFT AS	0.5%
KVIKNE-RENNEBU KRAFTLAG AS	0.1%

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

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 03.10.2026.