Jan Grundeland Antonsen is a private shareholder with an estimated portfolio value of NOK 525,000. Jan Grundeland Antonsen holds stakes in 2 companies, and roles in several others.

Estimated portfolio value

NOK 525,000

The sum of estimated values across all known holdings in Norwegian AS/ASA companies

Companies Jan Grundeland Antonsen owns

Company	Stake	Value (est.)
JAARKITEKTER HOLDING AS	100.0%	NOK 8,000
JA ARKITEKTER AS	50.0%	NOK 517,000

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 02.09.2026.