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MastTech Oy
OY
Active
Y-tunnus 2730417-8
Linturinteenkatu 6, 88610
Vuokatti
Other specialised construction activities n.e.c.
· NACE 4399
Est. 2015
2 employees
www.masttech.fi
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Other specialised construction activities n.e.c.
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MastTech Oy
Overview
Financials
People & ownership
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (4)
AS
Antti Sakari Kääriäinen
Deputy auditor
Deputy auditor
2025
AV
Ari Viljami Piirainen
Audit
Audit
2015
HO
Heikki Olavi Kaipainen
Chief Executive Officer
Chief Executive Officer
2025
NR
Niko Rasmus Viljami Kemppainen
Deputy Member
Deputy Member
2021
Former (1)
RI
Rauli Ilmari Alfons Johansson
Deputy auditor
Deputy auditor
2015 – 2025
Board of directors
Non-executive oversight
Name
Role
Member since
Current (1)
KV
Kimmo Viljami Kemppainen
Chairperson
2025
Former (1)
JM
Juuso Martti Petteri Laitinen
Board of Directors
2015 – 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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