Private · Person · registered roles
Christina Sofie Jonstang
Active in 3 companiesCEO · Chair · Board memberPorsgrunn & Tønsberg
↳ Brreg · company_people
Role timeline
CSJ AS
Styrets leder
Celnic Invest AS
Varamedlem
Stena Confidential AS
Daglig leder
since 2020 · bars start at the registry's change date — full periods are not published
Across their companies3 · rolled up
Combined revenue
kr 54.6M +
Tenders won
0
Status
all active
Reach
3 industries
Brreg roles + Regnskap · rolled up across their companies — includes historical roles
Reach by industry
Investigation and private security activities
1
Rental and operating of own or leased real estate
1
Recent role changes
2025-12-12Became Daglig leder — Stena Confidential AS
2020-11-03Became Varamedlem — Celnic Invest AS
2020-06-22Became Styrets leder — CSJ AS
Signals
Multiple boardscurrent board roles at 2+ companies
computed from Brreg roles