S25 Demo Day Afterparty

Now that we've made it past YC Demo Day, come celebrate the end of the S25 batch with other YC Founders at the Sansome Penthouse in San Francisco!

Free drinks, live DJ, great people, and good vibes.

Co-hosted with our friends at

• Fondo - The all-in-one accounting platform for startups. We help 1,000+ startups put their bookkeeping, taxes, and tax credits on autopilot.

• Newmark - A leading commercial real estate advisor and service provider.

• AgentHub - The simulation engine to test, monitor, and improve your agents in real-world environments.

• Pally - Pally 'stalks' everyone you know, across all social platforms, and lets you know if something important happens in their life.

Special thanks to our title sponsor, Microsoft for Startups !

• Designed for founders that are ready to start their business. Access cutting-edge AI models and developer tools to build faster on Azure, backed by Microsoft’s global customer network, enterprise-grade security, and privacy you can trust.

Our additional event sponsors include:

• Carta - software and services that lay the groundwork so you can invest, build, and scale with confidence.