​​YC F26 Welcome Yacht Party

​20th of September • San Francisco Bay

Join the newest Y Combinator batch for an unforgettable evening aboard a luxury yacht on the San Francisco Bay.

Expect sparkling views, great conversations, champagne, and the electric energy of a brand-new batch kicking off an incredible journey.

Date: Sunday, September 20, 2026

​Time:
- 5:30 pm: Boarding
- 6:00 - 9:00 pm: Cruise

Host:

​Userlens (YC P26) builds agents that talk to your users. Userlens agents nudge your users thoughtfully based on their usage behavior, to get the onboarded and adopting your product further.

​Sponsors:

​Brex is the AI-powered spend platform. We transform finance teams from reactive no-sayers to proactive growth drivers. With Brex, companies spend with confidence by empowering employees to make smarter financial decisions from anywhere. Brex provides corporate cards, banking, and global payments, plus intuitive software for travel and expenses, that make it easy to plan and track all company spend in one place, in real time. Tens of thousands of companies from startups to global enterprises — including DoorDash, Flexport, and Compass — use Brex to proactively control spend, reduce costs, and increase efficiency on a global scale.

​Supabase - Build production-grade applications with a Postgres database, Authentication, instant APIs, Realtime, Functions, Storage and Vector embeddings.

Vouch - Built For Startups — Vouch Startup Insurance is the right protection, right now. Apply in as little as 10 min. Handle all your insurance coverage online with Vouch. Advisors available to help you now. Digital Management.

​Limited capacity.

​Come make new friends, soak in the magic of the Bay, and toast to the beginning of something extraordinary.

​We can’t wait to welcome you aboard.