Batch #1 · since 2023
Five seats. All of them taken.
Five companies came out of the first batch. Two were sold in one deal in December 2025. Three are still building. There was never a sixth, and nothing here is hiding in stealth.
The batch, filled
We take five a batch. Batch #1 is closed.
One seat per founding team, because we work with every one of them personally. The first batch ran from 2023 to 2025 and ended with KREEDL.
Building
Sold 2025
Building
Sold 2025
BuildingNo open seats in this batch. No sixth company in stealth.
The companies
What came out of the first three years.
-
GRAET
BuildingLinkedIn for sport. A place where athletes, recruiters and fans find each other, with an AI sports agent built in.
Founded by Kroni Hope, an NHL skills coach who built the first version while living in his car. Seven hundred players recruited through it in the first seven months, past eighty thousand monthly users without paid marketing, and a place on the Forbes 30 Under 30 list.
graet.com -
Langtail
Sold · December 2025Testing for AI apps. Every change to a prompt checked against real data, so the bugs are caught before users see them.
Built by Petr Brzek and Tomas Rychlik, who had already built and sold Avocode before they came to the studio.
langtail.com -
VETSTOR
BuildingVets recommend products and somebody else sells them. VETSTOR gives every veterinarian their own white-label store, so they keep the brand, the customer and the margin.
Co-founded by Lucie Brabcova, who ran expansion and digital at PetCenter and knew exactly where the industry was broken, with Nikola Safranek.
vetstor.cz -
Macaly
Sold · December 2025Build websites and web apps by describing them. An AI agent that writes the code, ships it and fixes what breaks.
Built by Petr Brzek with Tomas Rychlik and Martin Duris. Launched in 2025 and sold the same year, one of the fastest deals the Czech scene has seen.
macaly.com -
KREEDL
Building · the last seatA 24/7 AI hotline for buildings. Tenants, store managers and staff always get somebody who picks up and sorts it out, in their own language, at three in the morning if that is when it breaks.
Co-founded by Matej Krcek, who has been building products since he was a teenager and now runs it between Prague and London.
kreedl.com
December 2025
Macaly. Launched and sold in the same year.
Built in the studio by Petr Brzek and his team, launched in 2025, sold in December 2025. One of the fastest deals the Czech startup scene has seen. Langtail, from the same founders, went in the same deal.
The studio starts. No companies yet.
Five companies. One seat at a time.
Macaly sold. Langtail with it.
The pattern
None of them arrived with a company.
They knew an industry
A coach inside hockey. A retail director inside pet care. Builders who had shipped and sold software before. The insight came from the work, not from a brainstorm.
They started at zero
No traction, no deck, no round. The first money, the demo and the paperwork came from the studio, before anyone else believed it.
They own what they built
Every one of them is a real founder with real ownership. We were the co-founder nobody sees, and their name is the one on the door.
Batch #2 · 2026
Batch #2 has 3 seats left.
StudyFi took the first in January. CircuitNinja the second in May. The rest are waiting for the right founders.
Jan 2026
May 2026