Private · Person · registered roles
Jon Håvard Martinsen
Active in 6 companiesCEO · Chair · Board memberLarvik & Tønsberg
↳ Brreg · company_people
Role timeline
Larvik Bygg Entreprenør AS
Styremedlem
Larvik Bygg Entreprenør AS
Daglig leder
Opplæringskontoret for Tømrerfaget i Vestfold STI
Styremedlem
Maho Invest AS
Daglig leder
Maho Invest AS
Styremedlem
Byggmesterfirmaet Martinsen & Østby AS
Styrets leder
Sv50 Invest AS
Styremedlem
Sv50 Invest AS
Daglig leder
since 2021 · bars start at the registry's change date — full periods are not published
Across their companies6 · rolled up
Combined revenue
kr 46.2M +
Tenders won
0
Status
all active
Reach
4 industries
Brreg roles + Regnskap · rolled up across their companies — includes historical roles
Reach by industry
Construction of residential and non-residential buildings
2
Rental and operating of own or leased real estate
1
Other educational support services n.e.c.
1
Recent role changes
2025-10-06Became Styremedlem — Skreppestadveien 50 AS
2025-10-06Became Daglig leder — Skreppestadveien 50 AS
2025-09-24Became Daglig leder — Sv50 Invest AS
2025-09-24Became Styremedlem — Sv50 Invest AS
2025-09-08Became Styrets leder — Byggmesterfirmaet Martinsen & Østby AS
Signals
Multiple boardscurrent board roles at 2+ companies
Serial CEOCEO (current or past) at 3+ companies
computed from Brreg roles