Sigurd Rønneberg is a private shareholder. Sigurd Rønneberg holds stakes in 2 companies, and roles in several others.

Companies Sigurd Rønneberg owns

Company	Stake
KLEMPE & RØNNEBERG INVEST AS	50.0%
FJORDFAST AS	0.1%

Roles

Styremedlem

1 selskap

FINSETHAGEN AS 935975425

Styrets leder

1 selskap

KLEMPE & RØNNEBERG INVEST AS 936109942

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.