Private · Person · registered roles
Harald Christian Langård Maartmann
Active in 6 companiesCEO · Chair · Board memberOslo & Sandefjord
↳ Brreg · company_people
Role timeline
Harald C Maartmann
Innehaver
Tracking Systems AS
Styremedlem
HCM Invest AS
Daglig leder
HCM Invest AS
Styrets leder
Holtegaten 26 AS
Styremedlem
Investerings Data AS
Daglig leder
Investerings Data AS
Styrets leder
Oslo Guttehjems Sosialfond STI
Styremedlem
since 2017 · bars start at the registry's change date — full periods are not published
Across their companies6 · rolled up
Combined revenue
kr 12.3M +
Tenders won
0
Status
all active
Reach
4 industries
Brreg roles + Regnskap · rolled up across their companies — includes historical roles
Reach by industry
Rental and operating of own or leased real estate
3
Activities of charities which distribute means themselves
1
All other professional, scientific and technical activities n.e.c.
1
Other business support service activities n.e.c.
1
Recent role changes
2026-07-21Became Forretningsfører — Oslo Guttehjems Sosialfond STI
2026-07-17Became Styremedlem — Oslo Guttehjems Sosialfond STI
2026-07-16Became Styrets leder — Investerings Data AS
2026-07-16Became Daglig leder — Investerings Data AS
2026-03-06Became Styremedlem — Holtegaten 26 AS
Signals
Multiple boardscurrent board roles at 2+ companies
New CEOcurrent CEO role registered < 6 months ago
computed from Brreg roles