Ratna Oy

Harnessing the potential of new urban services in EU cities

Contact

Ratna Oy is a Finland based company designing field operation and access solutions for smart cities using IoT and blockchain technologies. The management team has a long corporate experience from mobile networking and physical access systems combined with an innovative and fresh development team.

Jouni Koljonen


jouni.koljonen@ratna.fi
+358 50 514 9690

Punavuorenkatu
Helsinki 00120
Finland