Tone Ruud Krogstad is a private shareholder. Tone Ruud Krogstad holds a stake in 1 company, and roles in several others.

Companies Tone Ruud Krogstad owns

Company	Stake
PROSA HOLDING AS	50.0%

Roles

Styrets leder

2 selskaper

PROSA AS 934339819

PROSA HOLDING AS 935022592

Styremedlem

1 selskap

VIKA HELSEKOST AS 937541333

Varamedlem

1 selskap

HELSEMAGASINET AS 981500172

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.