Thomas Sem Grøstad is a private shareholder. Thomas Sem Grøstad holds stakes in 2 companies, and roles in several others.

Companies Thomas Sem Grøstad owns

Company	Stake
T GRØSTAD HOLDING AS	100.0%
FASTTEKK AS	50.0%

Roles

Daglig leder

2 selskaper

T GRØSTAD HOLDING AS 931518364

FASTTEKK AS 917095000

Styrets leder

2 selskaper

T GRØSTAD HOLDING AS 931518364

FASTTEKK AS 917095000

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.