The idea
A cofounder search asks for more than a good introduction. Hi, Cofounder creates space for founders and builders to see how other people approach decisions, disagreements, and the work of building together.
The experience
Small-group activities and prompts explore questions such as speed versus quality, when to ship, and how to handle different views on a product or go-to-market decision. The activities give people something specific to talk through together.
An ongoing series
The series began in New York in June 2026 and returned to San Francisco on October 7. Ambitious builders came together to find potential cofounders and solve problems in industries they care about. Applications and audience selection support the format. The goal is to leave knowing who you want to keep talking to, with no pressure to commit to a project at the event.


