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Arkkitehtitoimisto Helamaa & Heiskanen Oy
OY
Active
Y-tunnus 3195457-9
Tampellan Esplanadi 2, 33100
Tampere
Architectural activities
· NACE 7111
Est. 2021
45 employees
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Arkkitehtitoimisto Helamaa & Heiskanen Oy
Overview
Financials
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (1)
JO
Juha Olavi Saarijärvi
Chief Executive Officer
Chief Executive Officer
2021
Former (3)
SM
Saila Marjatta Mastosalo
Deputy Member
Deputy Member
2021 – 2021
JV
Janne Viljami Sirkka
Audit
Audit
2021 – 2023
TS
Tuulikki Saarijärvi
Deputy Member
Deputy Member
2021 – 2021
Board of directors
Non-executive oversight
Name
Role
Member since
Current (6)
MJ
Matti Juhani Mastosalo
Chairperson
2021
ML
Maria Lea Irene Ahokas
Board of Directors
2021
PJ
Petri Jouko Julius Hirvonen
Board of Directors
2021
PJ
Pasi Jorma Sakari Pikkarainen
Board of Directors
2021
TJ
Timo Jussi Toivola
Board of Directors
2021
PS
Piia Susanne Tuomisto
Board of Directors
2021
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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