Øystein Trosterud is a private shareholder. Øystein Trosterud holds stakes in 2 companies, and roles in several others.

Companies Øystein Trosterud owns

Company	Stake
ØTBT HOLDING AS	100.0%
TROSTERUD HOLDING AS	33.3%

Roles

Daglig leder

2 selskaper

ØTBT HOLDING AS 989215019

TROSTERUD HOLDING AS 912158373

Styrets leder

2 selskaper

ØTBT HOLDING AS 989215019

TROSTERUD HOLDING AS 912158373

Varamedlem

2 selskaper

TTLT HOLDING AS 989215132

ETKT HOLDING AS 989215086

Styremedlem

1 selskap

TROSTERUD MEKANISKE VERKSTED AS 934118944

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 03.10.2026.