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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Tim
Founder and CEO of Zulip, a powerful team chat platform for distributed engineering teams. Previously co-founded Ksplice (acquired by Oracle) and led major infrastructure projects at Dropbox. MIT-trained engineer with deep expertise in building robust, developer-centric systems.
Connor
Connor is the CEO, co-founder of Speak, an AI Speaking App that teaches users English. Prior to that, Connor created Flashcards+ which is an education app used by over 5 million students worldwide and eventually sold it to Chegg.
Jeff
Jeff is the co-founder and former COO of Pilot.com. Prior to Pilot, he led operations at OpenAI and founded Zulip (acquired by Dropbox), where he later led product for client and platform teams.
Ashton
2x Olympic gold medalist in decathlon. Mechanical engineer. Nike R&D.
Tom
Tom is the co-founder of Anthropic. Previously led engineering for GPT-3 at OpenAI, scaling it from 1.5B to 170B parameters, and contributed to foundational work on RLHF.
Andrew
Andrew is the co-founder and CTO of Speak, building technology to reinvent how people learn, starting with language. He's former Thiel Fellow and Stanford PhD dropout in neuroscience and bioengineering.
Sam
Sam did a PhD in Algebraic Combinatorics before working at Google and most recently Scale, where he built the incentive system.
Pete
Creator of Coinbase Wallet and Cipher Browser, and currently Engineering Lead for USDC. Advises projects across web3 including Polygon, Family, and Tribes. Ask ChatGPT
Sonia
Currently metalearning across multi-agent reinforcement learning, web 3, speculative science fiction, and multi-billion dollar bets... Twitter: @soniajoseph_
Jessica
Believer in people and cultivator of civic life, often using tech. Former lives: Cofounder & CEO/COO @ U.S. Digital Response; Fellow @ Code for America & Aspen Institute; local govvie; edtech builder. Field trip schemer, forever poet, persistent host.

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.