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Rakennus Oy Isotalo
OY
Active
Y-tunnus 0981059-5
Kaupintie 5, 00440
Helsinki
Asuin- ja muiden rakennusten rakentaminen
· NACE 41200
Est. 1994
— employees
www.rakennus-isotalo.fi
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Rakennus Oy Isotalo
Overview
Financials
People & ownership
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (4)
TJ
Timo Juhani Helle
Audit
Audit
2018
JS
Juha-Pekka Sakari Keimmo
Deputy auditor
Deputy auditor
2018
AR
Ari Rauno Juhani Silvola
Chief Executive Officer
Chief Executive Officer
2022
MK
Maija Katariina Arjasmaa
Deputy Member
Deputy Member
2017
Former (2)
JO
Jani Olavi Pesonen
Chief Executive Officer
Chief Executive Officer
2019 – 2022
IJ
Ilkka Johannes Isotalo
Chief Executive Officer
Chief Executive Officer
2005 – 2019
Board of directors
Non-executive oversight
Name
Role
Member since
Current (1)
KJ
Kimmo Juhani Arjasmaa
Chairperson
2017
Shareholders
As of last annual report
Shareholder
Type
Ownership
Votes
Since
Arjasmaa Yhtiöt Oy
Company
51%
51%
2023
Beneficial ownership (UBO) data access is restricted in Denmark as of September 2025 per the EU 6th AML Directive.
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