About Kolektyw3
Kolektyw3 is a coworking and event space at Koszykowa 54 in central Warsaw, four minutes on foot from the Politechnika metro station. It was built by the team behind ETHWarsaw for people who build - AI teams, web3 projects, early-stage startups and product makers.
From a conference to a permanent address
ETHWarsaw ran for four editions as a conference and hackathon before it had a place of its own. Every year the same thing happened - a few hundred people met, built something together over a weekend, and then went back to working alone. The community existed for three days a year and then stopped.
Kolektyw3 started in July 2025 at Wioślarska 8 as an answer to that, a space where the meetups, the workshops and the day-to-day work could happen in the same place. In March 2026 we moved into our own space at Koszykowa 54, third floor.
Today the space runs on two tracks at once. On one side, 34 dedicated desks and 70 hot desk seats for people who work here daily, with 24/7 access, meeting rooms and a kitchen. On the other, an event space for up to 100 people that hosts our own recurring formats: Vibecoder Wednesday, AI Breakfast, K3 Sessions, Claude Community Meetups and Longevity Kolektyw.
Resident teams include Ramp Network, Haip and Smok VC. The Kolektyw3 community counts over 1,300 people, and is part of the wider ETHWarsaw community of over 2,400.
The space
