Birgitte Marie Siem is a private shareholder with an estimated portfolio value of NOK 540.4m. Birgitte Marie Siem holds stakes in 3 companies, and roles in several others.

Estimated portfolio value

NOK 540.4m

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

Companies Birgitte Marie Siem owns

Company	Stake	Value (est.)
BIRMA AS	90.0%	NOK 486.4m
BIRMA AS	10.0%	NOK 54.0m
AS FOLEHAVNA	4.2%	NOK 4,000

Roles

Styremedlem

2 selskaper

ERNA OG KNUT ENGS BARNEFOND STI 980983730

BIRMA AS 950579714

Daglig leder

1 selskap

BIRMA AS 950579714

Innehaver

1 selskap

BIRGITTE M. SIEM 924789158

Styrets leder

1 selskap

ORFEUS PUBLISHING AS 928624994

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.