What is the Y-tunnus number of Dieta Group Oy?

Dieta Group Oy is registered with PRH / YTJ under Y-tunnus 3207913-9.

How many employees does Dieta Group Oy have?

Dieta Group Oy employs 164 people as of the latest annual report.

Jonne Tapani Honkanen is the CEO of Dieta Group Oy, in role since 2025.

Aki Juhana Karrinpoika Käyhkö chairs the board of Dieta Group Oy, in role since 2023.

Dieta Group Oy's registered address is Holkkitie 8-A.

OYActive

Y-tunnus 3207913-9Holkkitie 8A, 00880 HelsinkiOther business support service activities n.e.c.· NACE 8299Est. 2021 · 5 years old164 employees

Actively employed in the business

Name	Role	Member since
Current (3)
RM Riitta Marketta Järnstedt Person with significant control	Person with significant control	2023
JT Jonne Tapani Honkanen Chief Executive Officer	Chief Executive Officer	2025
MM Minna Maarit Laaksonen Person with significant control	Person with significant control	2021
Former (2)
EJ Esko Juhani Järvenpää Chief Executive Officer	Chief Executive Officer	2023 – 2025
JM Jarno Markus Olavi Käyhkö Deputy Member	Deputy Member	2021 – 2023

Non-executive oversight

Name	Role	Member since
Current (3)
AJ Aki Juhana Karrinpoika Käyhkö Chairperson	Chairperson	2023
HA Heikki Antero Savolainen Board of Directors	Board of Directors	2023
KW Kai-Erik Wilhelm Becker Board of Directors	Board of Directors	2023

As of last annual report

Shareholder	Type	Ownership	Votes	Since
WestStar Oy	Company	87.2%	87.2%	2024

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