Bjørn Robert Antonsen is a private shareholder with an estimated portfolio value of NOK 4.1m. Bjørn Robert Antonsen holds stakes in 3 companies, and roles in several others.

Estimated portfolio value

NOK 4.1m

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

Companies Bjørn Robert Antonsen owns

Company	Stake	Value (est.)
ROSTAN INVEST AS	100.0%	NOK 642,000
ADVOKATFIRMAET GRINDSTAD & CO AS	20.0%	NOK 3.4m
LOSJEVEIEN 2 AS	5.3%	NOK 32,000

Roles

Styremedlem

2 selskaper

NYGAARDSGATEN 23-27 AS 925260339

ADVOKATFIRMAET GRINDSTAD & CO AS 833197592

Styrets leder

2 selskaper

CICIGNON BYDELSFORENING 897935872

ROSTAN INVEST AS 934141970

Daglig leder

1 selskap

ROSTAN INVEST AS 934141970

Varamedlem

1 selskap

TORGAUTEN AS 990523673

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.