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Reaktor Ecosystem Oy
OY
Active
Y-tunnus 3284718-5
Yliopistonkatu 4, 00100
Helsinki
Computer consultancy and computer facilities management activities
· NACE 6220
Est. 2022
4 employees
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Reaktor Ecosystem Oy
Overview
Financials
People & ownership
Related companies
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People & ownership
Management
Actively employed in the business
Name
Role
Member since
Current (2)
RJ
Riikka Johanna Uimonen
Person with significant control
Person with significant control
2024
HS
Henri Samuli Savo
Person with significant control
Person with significant control
2024
Former (1)
HV
Heikki Veikko Matias Härkönen
Chief Executive Officer
Chief Executive Officer
2023 – 2024
Board of directors
Non-executive oversight
Name
Role
Member since
Current (4)
KK
Kaisa Kerttu Emilia Latva
Board of Directors
2026
PT
Pekka Toni Rikhard Horo
Chairperson
2025
JI
Jaakko Ilkka Kosola
Board of Directors
2025
JI
Jouni Ilmari Hartikainen
Board of Directors
2025
Former (4)
JT
Juha Tapani Ilola
Board of Directors
2023 – 2024
AK
Antti Kalevi Mäkelä
Board of Directors
2023 – 2024
MH
Mari Helena Heusala
Board of Directors
2025 – 2026
ME
Mika Esko Petteri Sutinen
Chairperson
2023 – 2024
Shareholders
As of last annual report
Shareholder
Type
Ownership
Votes
Since
Reaktor Group Oy
Company
100%
100%
2024
Beneficial ownership (UBO) data access is restricted in Denmark as of September 2025 per the EU 6th AML Directive.
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Revenue, EBITDA, balance sheet and 5-year trend
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Corporate hierarchy, parent and subsidiary network