Jiří Najman co-founded Betsys in 2002, transforming it from a Czech web-studio startup into the largest betting-software provider in Central & Eastern Europe.

Under his leadership, Betsys built a full-stack sportsbook platform—handling retail and online channels, with capabilities rivaling banking-grade systems—and grew its operations to serve millions of users monthly.

In 2020, the Polish bookmaker STS Holding SA acquired a major stake in Betsys, marking an important milestone in Najman’s vision of scaling globally.