Sigvald Nyberg Karlsen

Private shareholder 2819 GJØVIK NO

Sigvald Nyberg Karlsen is a private shareholder with an estimated portfolio value of NOK 9.4m. Sigvald Nyberg Karlsen holds stakes in 3 companies, and roles in several others.

Estimated portfolio value

NOK 9.4m

The sum of estimated values across all known holdings in Norwegian AS/ASA companies

Companies Sigvald Nyberg Karlsen owns

Company	Stake	Value (est.)
SIGKARL AS	100.0%	NOK 6.7m
NORSK HERDESENTER AS	9.5%	NOK 829,000
B2 IMPACT ASA	0.0%	NOK 896,000

Roles

Styremedlem

7 selskaper

NORSK HERDESENTER AS 926353039

JØRGEN KARLSEN AS 975788253

PROTOMEK EIENDOM AS 924398280

PROGAR HOLDING AS 924745975

J KARLSEN EIENDOM AS 871201722

PROGAR AS 933009912

PROTOMEK AS 994796658

Styrets leder

3 selskaper

J KARLSEN GARTNERI AS 957494013

SIGKARL AS 934579895

PROGAR UTVIKLING AS 927458128

Daglig leder

2 selskaper

PROTOMEK AS 994796658

SIGKARL AS 934579895

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 02.09.2026.