Great ideas rarely emerge from isolation

South Park Commons is a community of technologists ideating and validating what to build next. We believe this shouldn’t be done alone. Our members range from exited founders and highly-cited researchers to new graduates and first-time entrepreneurs. What unites us is ambition, ability, and a mutual commitment to helping each other navigate -1 to 0.

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south park commons community

OUR Members

A Modern Day Xerox PARC


We focus on highly technical builders in the -1 to 0. Over the last decade, we have had 1,000 members join us to start companies, pursue research, and work on other ambitious projects.

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Bryan
CTO of Centari. We help with documents.
Vladimir
Founder and CEO of Lighter, and previously co-founder of Lunchclub. Earlier roles include Head of Machine Learning at Quora and VP Engineering at Addepar. He’s also an active investor in startups like Robinhood, Ramp, and Cognition, with a background in economics from Harvard (graduated at 18).
Nagendra
Nagendra is a technical guy, who loves building products. Earlier he worked with Facebook and lead the execution of messenger platform. Currently working on Helix - Support for Modern Teams, powered by AI, assisted by community.
Nolan
Currently exploring ideas around multimodal models and future of work. Prev: Engineering @ Complicore (Bootstrapped AI/ML credentialing platform). Consumer, DevEx, Web Infra @ Spotify.
Deborah
Cofounder & CEO at Sparrow - the first high-tech, high-touch employee leave management solution making it simple for companies to provide employee leave throughout North America. We're making employee leave stress-free for companies like Figma, Plaid, and Headspace Health.
Ross
I’m currently exploring human-in-the-loop AI systems at ROSNIK AI with my longtime friend Nick DiRienzo. In my prior life, I was Head of Product at Observe Inc and a PM at Splunk. In my spare time, you will find me brewing beer, riding my bike, and reading any sci-fi I can get my hands on.
Nick
Co-founder at ROSNIK AI, working on improving the experience of human in the loop AI systems. Previously, built software to scale Modern Health and Optimizely. Happy to chat about all things startups, software engineering, distributed systems, mental health, and food.
Erin
Erin Cafaro is a two-time Olympic gold medalist in rowing, winning with the U.S. women’s eight team at the 2008 Beijing and 2012 London Games. She is one of the most decorated rowers in U.S. history.
Rajat
Built and scaled B2B SaaS + Marketplace in manufacturing to $200M (Tiger Global, Alphawave). Bootstrapped a land records solution for financial institutions. IIT Bombay, IIM Ahmedabad alumnus. Always learning and sometimes earning.
Sam
Building Sentience...

Our Spaces

San Francisco
New York
Bengaluru

What our members do


Our members have started 250+ companies, including several unicorns. Others have become core contributors to leading research organizations, open-source software projects, and academic institutions.

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South Park Commons
380 Brannan St, San Francisco, CA
© 2025 All rights reserved.
South Park Commons
380 Brannan St, San Francisco, CA
© 2022 All rights reserved.