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Janne Samuli Rytkönen

Board of Directors, ARK-Cardio Oy

FI7 active roles

Overview Companies & roles Network

Companies & roles

Active roles

7 positions

Company	Role	Period	Ownership	Status
ARK-Cardio Oy CVR 0830639-7	BoardBoard of Directors	Since 2020	—	Active
Iso-Veikka Invest Oy CVR 2761085-3	ManagementChief Executive Officer	Since 2016	—	Active
Rakennustoimisto Valve Oy CVR 2823447-4	BoardBoard of Directors	Since 2021	—	Active
GASTI Management Oy CVR 2831880-3	BoardChairperson	Since 2022	—	Dissolved
Kartuttamo Oy CVR 3531891-6	BoardChairperson	Since 2025	—	Active
Kartuttamo Invest Oy CVR 3535690-4	BoardChairperson	Since 2025	—	Active
Reround Oy CVR 3616929-7	BoardBoard of Directors	Since 2026	—	Active

Historical roles

5 positions

Company	Role	Period	Ownership	Status
Sustera HVAC Design Oy CVR 2157559-1	OtherConfidential Clerk	2023 – 2025	—	Active
Sustera Energy Consulting Oy CVR 2764619-4	ManagementChief Executive Officer	2016 – 2024	—	Active
Krispi Oy CVR 2771413-4	BoardBoard of Directors	2018 – 2019	—	Dissolved
EcoCapital Oy CVR 2794665-6	BoardChairperson	2016 – 2022	—	Dissolved
RealSense Oy CVR 3217157-6	BoardChairperson	2021 – 2024	—	Active

2 dissolved companies in directorship history

CVR 2771413-4 · Dissolved 2019 · —

Role: Board of Directors

CVR 2794665-6 · Dissolved 2022 · —

Role: Chairperson

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