What is the Y-tunnus number of Sievi Tilat Oy?

Sievi Tilat Oy is registered with PRH / YTJ under Y-tunnus 2906024-2.

What is the revenue of Sievi Tilat Oy?

Sievi Tilat Oy reported revenue of 10,3 milj. € in 2025.

Sievi Tilat Oy employs 2 people as of the latest annual report.

Tuomo Olavi Mertaniemi is the CEO of Sievi Tilat Oy, in role since 2026.

Markku Juhani Koski chairs the board of Sievi Tilat Oy, in role since 2026.

Sievi Tilat Oy's registered address is Pl 28.

OYActive

Y-tunnus 2906024-2Pl 28, 67101 KokkolaConstruction of residential and non-residential buildings· NACE 4100Est. 2018 · 8 years old2 employees

Actively employed in the business

Name	Role	Member since
Current (3)
MH Mirva Helena Hautala Confidential Clerk	Confidential Clerk	2021
TO Tuomo Olavi Mertaniemi Chief Executive Officer	Chief Executive Officer	2026
JS Juha-Matti Silver Confidential Clerk	Confidential Clerk	2026

Former (4)


AS Antti Sakari Kääriäinen Audit	Audit	2018 – 2020
SS Sami Seppo Sakari Posti Audit	Audit	2020 – 2023
PÖ Pauli-Pekka Österberg

Non-executive oversight

Name	Role	Member since
Current (4)
MH Mirva Helena Hautala Board of Directors	Board of Directors	2020
JS Juha-Matti Silver Board of Directors	Board of Directors	2026
SS Sören Sven Ingvar Björkgård Board of Directors	Board of Directors	2023
MJ Markku Juhani Koski Chairperson	Chairperson	2026

Former (4)


JS Jaakko Sakari Tokola Board of Directors	Board of Directors	2023 – 2025
AO Ari Olavi Heinonen Board of Directors	Board of Directors	2018 – 2019
MJ Mikko Jaakko Kallio

As of last annual report

Shareholder	Type	Ownership	Votes	Since
Sievi Group Oy	Company	100%	100%	2023

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