What is the Y-tunnus number of Siisam Oy?

Siisam Oy is registered with PRH / YTJ under Y-tunnus 3268621-1.

What is the revenue of Siisam Oy?

Siisam Oy reported revenue of EUR 26K in 2025.

Jani Juhani Mäkelä is Chief Executive Officer of Siisam Oy, in role since 2022.

Siisam Oy's registered address is Pohjoinen Makasiinikatu 6-A4.

OYDissolved

Y-tunnus 3268621-1Pohjoinen Makasiinikatu 6-A4Business and other management consultancy activities · NACE 7020Est. 2022— employees

Revenue 2025

EUR 26K

+89% vs 2024

EBITDA margin

237.3%

+61% vs 2024

Equity ratio

2.2%

Financial strength

Net profit 2025

EUR 11K

-36% vs 2024

EBITDA — year on yearEUR millions

Key figuresAnnual report 2025

Name	Role	Member since
Current (2)
JJ Jani Juhani Mäkelä Chief Executive Officer	Chief Executive Officer	2022
TK Terhi Kristiina Mäkelä Deputy Member	Deputy Member	2022

Person	Role here	Other companies
Jani Juhani Mäkelä	Chief Executive Officer	0 companies
Terhi Kristiina Mäkelä	Deputy Member	0 companies