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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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.
Arjun
Worked as a software engineer on the platform and tools team at Facebook. Zillow and Microsoft before that. Explored angel investing + engineering at startups including Detour, Thistle, Dandelion Chocolate, Taika and others.
Rob
into film, computation, writing, social systems. previously founding engineer at substack, founding engineer at fin.com, early team / technical lead at venmo
James
James is a co-founder of Gamma, building a new format for modern business storytelling. Previously spent nearly eight years at Optimizely as a senior engineering leader.
Kshitij
Co-founder of Orb, building billing infrastructure for modern software teams. Previously led real-time infrastructure at Asana. Studied computer science and philosophy at Caltech and was part of the South Park Commons founder fellowship.
Bryan
After a PhD in AI/ML, cofounded a unique fintech—Angaza—to make solar energy and smartphones radically more affordable in sub-Saharan Africa and beyond. Helped millions of households connect to electricity and internet. Now focused on AI again.
Tammy
Tammy is the Founder and CEO of Carrot Fertility, the leading global platform for lifelong fertility and family care. Previously held senior roles at Evernote, the FCC, and the Clinton Foundation, with early experience in the Office of the Vice President.
Gloria
Gloria is the founder and CEO of Siteline, bringing modern financial tools to the construction industry. Previously Stripe’s first PM hire, where she worked on Checkout, Dashboard, and Risk/Identity.
Timothy
Hi, I'm Tim! I'm currently working on building an AI assistant for institutional investors. Previously I spent just about three years at Facebook and one year at a hedge fund.
Alex
Alex is the co-founder of Playbook.com, a cloud storage and collaboration tool for creatives. Before that, he studied at CMU and was an engineer at Addepar and Opendoor.

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.