What is the Y-tunnus number of MJ Yhtiöt Oy?

MJ Yhtiöt Oy is registered with PRH / YTJ under Y-tunnus 3563301-9.

Who is the CEO of MJ Yhtiöt Oy?

Tiina Katri Rönkä is Deputy Member of MJ Yhtiöt Oy, in role since 2026.

Jari Alfred Rönkä chairs the board of MJ Yhtiöt Oy, in role since 2026.

MJ Yhtiöt Oy's registered address is Nikulankatu 2.

OYDissolved

Y-tunnus 3563301-9Nikulankatu 2Activities of holding companies · NACE 6421Est. 2025— employees

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EBITDA — year on yearEUR millions

Key figuresAnnual report

Name	Role	Member since
Current (2)
TK Tiina Katri Rönkä Deputy Member	Deputy Member	2026
MO Markku Olavi Holopainen Chief Executive Officer	Chief Executive Officer	2025

Name	Role	Member since
Current (1)
JA Jari Alfred Rönkä	Board of Directors	2026