I build and fund tech companies. I built and sold Heureka, built GLAMI into the largest fashion search engine in CEE, and helped found and sell other projects at Miton, where I am a partner today.
I am always looking for new companies and opportunities. I like to join them as a hands-on co-founder and co-builder, usually taking on one new project a year. If you are building something, message me on LinkedIn.
Now
I am working full-time on Ace, an app for padel players. Players get a rating and a match history and can find opponents at their level. Clubs get bookings and tournaments with no licence fees. Six months after launch, two thirds of Czech players use it. Together with Jiří Diblík we are taking it abroad.
AI companies we are building
As the first investor and co-builder, I am actively involved in two AI companies:
Mature companies with their own management
In the media
- 10/2026Profitable after a year and a half, the young startup now counts Alza as a client. Miton sends more millions into its new AI service [cz] · CzechCrunch
- 10/2026Former 30 Under 30 honourees launched a padel app. Two thirds of Czech players already use it [cz] · Forbes
- 04/2026What will AI-powered shopping look like? Glami and Biano join forces and test new answers · Miton
- 11/2025From funerals to AI: Štěpánek from this year's 30 Under 30 raised €400k from Miton for a new startup [cz] · Forbes
Before
Writing
My old Czech blog Oříšek lives on in the archive [cz]. I wrote it back when there was no Twitter yet.