// legal

Company details

Registration and contact details for Binary Castle, as recorded in the Finnish Trade Register.

Registered name
Binary Castle
Business ID (Y-tunnus)
3493561-3
VAT number
FI34935613
Business form
Private entrepreneur (toiminimi)
Register
Finnish Trade Register
Domicile
Helsinki
Registered address
Harustie 7 C 17 00980 Helsinki Finland

Binary Castle is a software development studio based in Helsinki, Finland, building AI agents, SaaS platforms, ERP systems, and native mobile applications for clients worldwide. Business correspondence, invoices, and verification requests should be sent to hello@binarycastle.net.

Registry data can be verified independently through the Finnish Business Information System (YTJ) using our Business ID 3493561-3.

See also our Privacy Policy and Terms of Service.