We are an investment company that helps Finland’s most promising companies grow bigger.

Entrepreneurial private equity investor grows
Nordic SMEs. Tesi's portfolio fund since 2019.

Accelerating the developmentof protein therapeutics with AI.
Tesi's portfolio company since 2026.

Building a resilient European digital future. Tesi's portfolio company since 2020.

Small modular reactors for district heating. Tesi's portfolio company since 2025.

Egg white protein without animals. Tesi's portfolio company since 2024.

Tesi's new investment strategy – together with private investors,
as a minority investor, and on a market-driven basis.