John Sigve Tjelta is a private shareholder. John Sigve Tjelta holds a stake in 1 company, and roles in several others.

Companies John Sigve Tjelta owns

Company	Stake
JST HOLDING AS	100.0%

Roles

Styrets leder

3 selskaper

DIATEK AS 956765935

LEIKVOLL'S KJERNEBORING AS 976588894

JST HOLDING AS 989137735

Daglig leder

2 selskaper

DIATEK AS 956765935

LEIKVOLL'S KJERNEBORING AS 976588894

Varamedlem

1 selskap

FORUS TRAV AS 877563812

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.