What is the Y-tunnus number of Only 10 Oy?

Only 10 Oy is registered with PRH / YTJ under Y-tunnus 3382036-3.

What is the revenue of Only 10 Oy?

Only 10 Oy reported revenue of EUR 1,1M in 2025.

Ville Waltteri Vainio is Chief Executive Officer of Only 10 Oy, in role since 2023.

Sami Antero Vainio chairs the board of Only 10 Oy, in role since 2026.

Only 10 Oy's registered address is Monninlinja 54.

OYActive

Y-tunnus 3382036-3Monninlinja 54Business and other management consultancy activities · NACE 7020Est. 2023— employees

Revenue 2025

EUR 1,1M

EBITDA margin

6.5%

+118% vs 2024

Equity ratio

79.2%

Financial strength

Net profit 2025

EUR 57K

+114% vs 2024

EBITDA — year on yearEUR millions

Key figuresAnnual report 2025

Name	Role	Member since
Current (2)
VW Ville Waltteri Vainio Chief Executive Officer	Chief Executive Officer	2023
PS Piia Susanna Wallenius Deputy Member	Deputy Member	2023

Name	Role	Member since
Current (1)
SA Sami Antero Vainio	Chairperson	2026