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Tammas-Marine Oy
OY
Active
Y-tunnus 0869315-5
Lt. 10, 31600
Jokioinen
Building of civilian ships and floating structures
· NACE 3011
Est. 1991
8 employees
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Finland
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Building of civilian ships and floating structures
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Tammas-Marine Oy
Overview
Financials
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (2)
JJ
Jari Juhani Aaltonen
Chief Executive Officer
Chief Executive Officer
2014
MM
Minna Marika Aaltonen
Deputy Member
Deputy Member
2014
Former (2)
JO
Juha Olavi Koponen
Audit
Audit
2014 – 2020
SI
Seija Irmeli Hakamäki
Audit
Audit
2020 – 2023
Board of directors
Non-executive oversight
Name
Role
Member since
Current (1)
JM
Juha Matias Aaltonen
Board of Directors
2014
Shareholders
As of last annual report
No shareholder data available.
Beneficial ownership (UBO) data access is restricted in Denmark as of September 2025 per the EU 6th AML Directive.
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