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Arkkitehtitoimisto ON Oy
OY
Dissolved
Y-tunnus 2503957-7
Kirkkokatu 1, 70100
Kuopio
Architectural activities
· NACE 7111
Est. 2012
7 employees
www.arktsto.fi
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Arkkitehtitoimisto ON Oy
Overview
Financials
People & ownership
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (3)
MK
Markus Kristian Karttunen
Audit
Audit
2023
AM
Ari-Pekka Markus Poikonen
Deputy auditor
Deputy auditor
2020
PO
Pekka Olavi Metsi
Deputy Member
Deputy Member
2024
Former (5)
KT
Kaarlo Tapani Raatikainen
Audit
Audit
2020 – 2023
AE
Antti Ensio Eskelinen
Audit
Audit
2012 – 2020
AM
Anne Maarit Saarenpää
Deputy auditor
Deputy auditor
2012 – 2020
OA
Olli Antero Nieminen
Chief Executive Officer
Chief Executive Officer
2012 – 2024
KO
Kyösti Ossian Kumpumäki
Deputy Member
Deputy Member
2012 – 2024
Board of directors
Non-executive oversight
Name
Role
Member since
Current (1)
TK
Tommi Kalevi Miettinen
Board of Directors
2024
Former (1)
AK
Anne Katriina Kumpumäki
Chairperson
2012 – 2024
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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