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Serious Sirius Oy
OY
Active
Y-tunnus 3265556-2
C/O Petja Mustonen Ullanmäentie 10C-10131, 02750
Espoo
Activities of advertising agencies
· NACE 7311
Est. 2022
— employees
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Serious Sirius Oy
Overview
Financials
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (1)
KK
Kirsti Kaarina Komppula
Deputy Member
Deputy Member
2022
Board of directors
Non-executive oversight
Name
Role
Member since
Current (2)
PT
Petja Tapani Mustonen
Chairperson
2022
SM
Sanaz Mustonen
Board of Directors
2022
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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