Kolbjørn Ertenstein is a private shareholder. Kolbjørn Ertenstein holds stakes in 2 companies, and roles in several others.

Companies Kolbjørn Ertenstein owns

Company	Stake
KGR AS	100.0%
ENHET 11 AS	100.0%

Roles

Daglig leder

2 selskaper

KGR AS 985342490

ENHET 11 AS 916682417

Styrets leder

2 selskaper

KGR AS 985342490

ENHET 11 AS 916682417

Styremedlem

1 selskap

SAMEIET FRAKKAGJERDVEGEN 195 937119399

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.