What is the Y-tunnus number of MJK Investment Oy?

MJK Investment Oy is registered with PRH / YTJ under Y-tunnus 2011109-0.

What is the revenue of MJK Investment Oy?

MJK Investment Oy reported revenue of EUR 3,1M in 2025.

Markku Juhani Kalliovaara is Chief Executive Officer of MJK Investment Oy, in role since 2006.

Roosa Anna Kalliovaara chairs the board of MJK Investment Oy, in role since 2022.

MJK Investment Oy's registered address is Mariankatu 15-A27.

OYDissolved

Y-tunnus 2011109-0Mariankatu 15A-1527, 00170 HelsinkiActivities of holding companies · NACE 6421Est. 2006— employees

Actively employed in the business

Name	Role	Member since
Current (2)
MJ Markku Juhani Kalliovaara Chief Executive Officer	Chief Executive Officer	2006
MM Minna Marjaana Kalliovaara Deputy Member	Deputy Member	2020
Former (4)
HM Harri Matias Suominen Audit	Audit	2022 – 2023
MA Martin Andreas Grandell Audit	Audit	2018 – 2021
MT Martti Tapio Kalliovaara Deputy Member	Deputy Member	2006 – 2020
AT André Trygve Kumlander Audit	Audit	2021 – 2022

Non-executive oversight

Name	Role	Member since
Current (1)
RA Roosa Anna Kalliovaara	Board of Directors	2022

As of last annual report

No shareholder data available.

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