Karl Christian Sandstø is a private shareholder. Karl Christian Sandstø holds stakes in 2 companies, and roles in several others.

Companies Karl Christian Sandstø owns

Company	Stake
ATTRITUS AS	100.0%
SFIT HELSE AS	50.0%

Roles

Styrets leder

3 selskaper

IONSPIRE MATERIALS AS 935095093

ATTRITUS AS 827299332

BULDRTECH AS 926756451

Daglig leder

2 selskaper

IONSPIRE MATERIALS AS 935095093

BULDRTECH AS 926756451

Styremedlem

1 selskap

SFIT HELSE AS 911595273

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.