

YC S26 Welcoming ft. Userlens x The Prompting Company
YC S26 Welcome Yacht Party
4th of July • San Francisco Bay
Join the newest Y Combinator batch for an unforgettable evening aboard a luxury yacht on the San Francisco Bay.
Celebrate Independence Day with fellow founders, mentors, and the YC community as we cruise past the iconic Golden Gate Bridge — watching a rare and historic fireworks display launched directly from the bridge towers for the first time in 14 years (only the third time in the bridge’s history).
Expect sparkling views, great conversations, champagne, and the electric energy of a brand-new batch kicking off an incredible journey.
Date: Saturday, July 4, 2026
Time:
- 6:30 pm: Boarding
- 7:00 - 10:00 pm: Cruise
Hosts:
The Prompting Company helps products get mentioned & used by AI agents. As agents become the first-class citizens of the internet, software needs to be rebuilt for agents, not humans. Companies like NVIDIA, Google, Databricks, Cloudflare, and Zapier are already using us.
Userlens builds AI agents that talk to your users. Based on their usage behavior, our agents find the best time to proactively message, email, and call your users so they adopt your product better and get more value.
Sponsors:
Rippling lets you offload critical admin work for payroll, benefits, compliance, IT, and finance, helping your startup grow fast and stay lean. 15,000 startups like Cursor, Perplexity, and YC itself run on Rippling — as well as dozens of YC startups every batch. We have an exclusive 12 month free offer for YC S26 startups — learn more here!
MongoDB allows you to combine operational data, vectors, and stream processing in a unified platform.
Cursor is the agent-native way to build ambitious software. Learn more here.
Rho combines Business Banking, Corporate Cards, Spend Management, Treasury and more in one seamless platform that's easy to start and powerful to scale.
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.