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Jetsi Oy
OY
Active
Y-tunnus 0548184-3
Halssilanperä 4C-417, 40400
Jyväskylä
Asuin- ja muiden rakennusten rakentaminen
·
NACE 41200
Est. 1983 · 42 years old
— employees
www.jetsi.fi
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Finland
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Asuin- ja muiden rakennusten rakentaminen
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Jetsi Oy
Overview
Financials
People & ownership
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (5)
HS
Hannu Sakari Siponen
Chief Executive Officer
Chief Executive Officer
2002
PO
Pentti Olavi Heiskanen
Audit
Audit
2002
KK
Kerttu Kaarina Janhonen
Deputy Member
Deputy Member
2002
IM
Iris Marita Suomi
Deputy auditor
Deputy auditor
2002
MK
Mikko Kalevi Janhonen
Confidential Clerk
Confidential Clerk
2018
Board of directors
Non-executive oversight
Name
Role
Member since
Former (1)
AK
Atso Kalevi Janhonen
Chairperson
Chairperson
2002 – 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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