Jan Grundeland Antonsen is a private shareholder. Jan Grundeland Antonsen holds stakes in 2 companies, and roles in several others.

Companies Jan Grundeland Antonsen owns

Company	Stake
JAARKITEKTER HOLDING AS	100.0%
JA ARKITEKTER AS	50.0%

Roles

Daglig leder

3 selskaper

JA ARKITEKTER ANTONSEN 821635632

JA ARKITEKTER AS 928238385

JAARKITEKTER HOLDING AS 931087894

Innehaver

1 selskap

JA ARKITEKTER ANTONSEN 821635632

Styremedlem

1 selskap

JA ARKITEKTER AS 928238385

Styrets leder

1 selskap

JAARKITEKTER HOLDING AS 931087894

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.