​YC Founders Mixer — SF a16z Tech Week 2026

​Monday, October 5, 2026
5:00–7:30 PM
San Francisco

​Join YC founders from across batches for drinks, light bites, and founder-to-founder conversation during SF a16z Tech Week 2026.

​Following the strong response to our recent YC founder gatherings, we’re bringing the community together again for a relaxed evening designed around useful conversations and genuine connections.

​No panels. No pitches. Just a curated room of YC founders meeting people from other batches, reconnecting with the community, and spending time together away from the larger Tech Week crowds.

​Who Is in the Room

• ​Current YC batch founders

• ​YC alumni founders

• ​YC-backed founders from pre-seed through growth stage

• ​A small number of selected community partners

​Event Format

​5:00 PM — Arrival, drinks and introductions
5:30 PM — Brief welcome from the hosts
5:40 PM — Founder networking, drinks and light bites
7:30 PM — Event concludes

​Attendance

​This is an approval-required event primarily for YC founders and alumni.

​Please include your company and YC batch when registering. Registration does not guarantee admission.

​No plus-ones unless they have registered separately and been approved.

​To protect the quality of the room, attendance is limited to confirmed guests. Please do not forward an approval or bring additional attendees who have not registered and been approved.

​Hosted By

​Open Future Forum
Agentic Fabriq — YC W26

​Together with selected members of the YC founder community.

​Agentic Fabriq

​Agentic Fabriq helps companies securely manage what AI agents can access and do across business tools, data, and teams.

​Open Future Forum

​Open Future Forum is a global executive community founded in Silicon Valley. It brings together founders, executives, investors, and other senior leaders through curated events, private forums, peer groups, and original research.

​Its YC founder gatherings are designed to create smaller, high-quality environments where founders can build relationships across batches and have conversations that are difficult to have at larger startup events.

​YC Founder Community

​Alex Perelman — 2x YC Alum

​Alex is a founder, software engineer, and leadership coach who works with ambitious startup founders navigating the transition from building a company to leading and scaling one.

​Ben Reilly — YC S22

​Ben is a YC alum and startup founder based in San Francisco and a member of the YC Founder Executive Forum committee.

​This is an independent community event. It is not organized, affiliated with, or endorsed by Y Combinator.