John Kristian Wold Jahnsen is a private shareholder. John Kristian Wold Jahnsen holds a stake in 1 company, and roles in several others.

Companies John Kristian Wold Jahnsen owns

Company	Stake
MAINFRAME DATA AS	100.0%

Roles

Styremedlem

2 selskaper

FREDRIKSTAD PISTOLKLUBB 817860192

REGIMENTSMYRA SKYTEPARK 914492513

Styrets leder

2 selskaper

NROF AVD. SØNDRE ØSTFOLD 813141132

MAINFRAME DATA AS 984027990

Daglig leder

1 selskap

MAINFRAME DATA AS 984027990

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.