Thorbjørn Back is a private shareholder with an estimated portfolio value of NOK 6.4m. Thorbjørn Back holds a stake in 1 company, and roles in several others.

Estimated portfolio value

NOK 6.4m

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

Companies Thorbjørn Back owns

Company	Stake	Value (est.)
EXTRA HOLDING AS	70.0%	NOK 6.4m

Roles

Styrets leder

2 selskaper

EXTRA HOLDING AS 989082620

JELLESTADVEIEN EIENDOM AS 930055395

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.