Private · Company · Aksjeselskap
Mainmast AS
↳ Brreg · companies
Structureparent
Owns ↓ · 6 subsidiaries
HAHavkonsult AS ↗Other technical consultancy100% · —OCOceans5 AS ↗Other technical consultancy100% · kr 32.9MOIO5 Invest AS ↗100% · —91911576872 ↗51% · —OOO5 Operations AS ↗Other technical consultancy51% · kr 11.7MOGOceans5 Group AS ↗Other technical consultancy51% · kr 2.85M
Holds a stake in 1 company
Owned by ↑ · top 4
Aksjonærregisteret · company_ownership · 2025 · both directions