What is the Y-tunnus number of Maseme Oy?

Maseme Oy is registered with PRH / YTJ under Y-tunnus 2833366-7.

What is the revenue of Maseme Oy?

Maseme Oy reported revenue of 60,7 t. € in 2025.

Mika Kärkkäinen is the CEO of Maseme Oy, in role since 2020.

Maseme Oy's registered address is Siltakatu 19-L5.

OYDissolved

Y-tunnus 2833366-7Siltakatu 19L-195, 18100 HeinolaRental and operating of own or leased real estate· NACE 6820Est. 2017 · 9 years old0 employeeswww.isannointi-tilitoimisto.com

Actively employed in the business

Name	Role	Member since
Current (4)
AA Alpo Aulis Salonen Deputy auditor	Deputy auditor	2025
MK Mika Kärkkäinen Chief Executive Officer	Chief Executive Officer	2020
PI Pentti Ilmari Lavanko Audit	Audit	2025
JA Jenna Annika Kärkkäinen Deputy Member	Deputy Member	2025

Former (4)


JJ Jari Juhani Havukainen Audit	Audit	2017 – 2023
JT Jukka Tapani Peltola Deputy auditor	Deputy auditor	2017 – 2025
HP Helena Pia-Maria Palomaa

Non-executive oversight

Name	Role	Member since
Current (1)
MK Mika Kärkkäinen Board of Directors	Board of Directors	2019

Former (4)


MK Maisa Kristiina Patronen Board of Directors	Board of Directors	2017 – 2019
KK Katja Karoliina Patronen Board of Directors	Board of Directors	2017 – 2019
KK Keijo Kalevi Patronen Chairperson	Chairperson	2017 – 2019
KM Kirsi Marika Patronen Board of Directors	Board of Directors	2017 – 2019

As of last annual report

No shareholder data available.

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