What is the Y-tunnus number of ST4 Cyber Oy?

ST4 Cyber Oy is registered with PRH / YTJ under Y-tunnus 3412437-8.

What is the revenue of ST4 Cyber Oy?

ST4 Cyber Oy reported revenue of EUR -224 in 2025.

Johannes Mikael Lehtonen is Deputy Member of ST4 Cyber Oy, in role since 2024.

Markus Lauri Lehtonen chairs the board of ST4 Cyber Oy, in role since 2024.

ST4 Cyber Oy's registered address is Riihimiehentie 2.

OYActive

Y-tunnus 3412437-8Riihimiehentie 2Computer programming activities · NACE 6210Est. 2023— employees

Revenue 2025

EUR -224

EBITDA margin

-254.0%

Equity ratio

93.5%

Financial strength

Net profit 2025

EUR 569

EBITDA — year on yearEUR millions

Key figuresAnnual report 2025

Name	Role	Member since
Current (1)
JM Johannes Mikael Lehtonen Deputy Member	Deputy Member	2024

Name	Role	Member since
Current (1)
ML Markus Lauri Lehtonen	Board of Directors	2024

Person	Role here	Other companies
Johannes Mikael Lehtonen	Deputy Member	0 companies
Markus Lauri Lehtonen	Board of Directors	0 companies