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DEF Energy Oy
OY
Active
Y-tunnus 3280221-9
Oikopolku 25, 26560
Kolla
Other specialised construction activities n.e.c.
· NACE 4399
Est. 2022
— employees
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DEF Energy Oy
Overview
Financials
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (1)
SM
Sari Marketta Järnberg
Liquidator
Liquidator
2023
Former (1)
TJ
Teemu Juhani Ellmén
Deputy Chief Executive Officer
Deputy Chief Executive Officer
2022 – 2023
Board of directors
Non-executive oversight
Name
Role
Member since
Former (2)
RO
Rami Olavi Järnberg
Board of Directors
2022 – 2022
JM
Jari Matti Järnberg
Board of Directors
2022 – 2023
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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