Sigbjørn Birkeland is a private shareholder with an estimated portfolio value of NOK 8.5m. Sigbjørn Birkeland holds stakes in 3 companies, and roles in several others.

Estimated portfolio value

NOK 8.5m

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

Companies Sigbjørn Birkeland owns

Company	Stake	Value (est.)
SISI HOLDING AS	29.0%	NOK 2.0m
VALSI AS	11.8%	NOK 6.0m
SISI HOLDING AS	7.0%	NOK 488,000

Roles

Varamedlem

3 selskaper

HENRIK BIRKELAND HOLDING AS 987890622

CHRISTIAN BIRKELAND HOLDING AS 987757140

BIRK ADVOKATFIRMA AS 925331554

Daglig leder

2 selskaper

SISI HOLDING AS 910593900

VALSI AS 925560537

Styrets leder

2 selskaper

SISI HOLDING AS 910593900

VALSI AS 925560537

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.