What is the Y-tunnus number of ARC4 Oy?

ARC4 Oy is registered with PRH / YTJ under Y-tunnus 3587895-6.

Who is the CEO of ARC4 Oy?

Mikko Peter Karjanlahti is Deputy Member of ARC4 Oy, in role since 2026.

Antto Antero Ratia chairs the board of ARC4 Oy, in role since 2025.

ARC4 Oy's registered address is Kakslauttasentie 129.

OYActive

Y-tunnus 3587895-6Kakslauttasentie 129Tour operator activities · NACE 7912Est. 2025— employees

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EBITDA — year on yearEUR millions

Key figuresAnnual report

Name	Role	Member since
Current (1)
MP Mikko Peter Karjanlahti Deputy Member	Deputy Member	2026
Former (1)
OA Otto Anders Ossian Söderlund Deputy Member	Deputy Member	2025 – 2026

Name	Role	Member since
Current (2)
MJ Matti Johannes Karjanlahti	Board of Directors	2025
AA Antto Antero Ratia	Chairperson	2025

Person	Role here	Other companies
Mikko Peter Karjanlahti	Deputy Member	0 companies
Otto Anders Ossian Söderlund	Deputy Member	0 companies
Matti Johannes Karjanlahti	Board of Directors	0 companies
Antto Antero Ratia	Chairperson	0 companies