# Brian Singerman

> Brian Singerman spent 16 years as a General Partner at Founders Fund - Peter Thiel's celebrated contrarian VC firm - backing SpaceX, Anduril, OpenAI, Stripe, and Scale AI before the world knew what they would become. He founded iGoogle at Google in 2005, built one of the first YC-focused investment vehicles (XGYC), and developed a reputation as one of the most conviction-driven investors of his generation. In late 2024, he transitioned to Partner Emeritus at Founders Fund, then co-founded GPx - a $500M debut fund with a structural twist on the VC model - with Lee Linden, backed significantly by Peter Thiel.

- **Role:** Co-Founder and Managing Partner at GPx; Partner Emeritus at Founders Fund
- **Organizations:** GPx, Founders Fund, Google
- **From:** Los Angeles, California, USA
- **Nationality:** American
- **Education:** B.S. in Computer Science, Stanford University
- **Known for:** Created iGoogle, Google's personalized homepage used by tens of millions of users, Founded XGYC, one of the first systematic YC-focused investment vehicles, Backed SpaceX, Anduril, OpenAI, Stripe, Scale AI, Affirm, Airbnb, and Oculus before they were household names

## Career timeline

- **1999** — Graduated Stanford with B.S. in Computer Science
- **1999-2004** — Software engineer at There.com, an early virtual world startup
- **2004** — Joined Google as a software engineer
- **2005** — Founded and launched iGoogle, Google's personalized homepage product
- **2007** — Founded XGYC Fund, one of the first YC-focused investment vehicles (~$1M personal fund)
- **2008** — Joined Founders Fund as Principal
- **2011** — Promoted to Partner at Founders Fund (September)
- **2012** — Invested in Stripe at ~$100M valuation
- **2016** — Led Founders Fund's $300M investment in Stemcentrx; $10.2B acquisition by AbbVie
- **2016** — Invested in OpenAI when still a nonprofit research lab
- **2016-2017** — Backed Anduril Industries at early stage; wrote $400M in checks across rounds
- **2018** — Invested in Scale AI at ~$100M valuation (later valued at $14B+)
- **2018** — Invested in Applied Intuition at ~$150M valuation
- **2024** — Stepped down as General Partner at Founders Fund; became Partner Emeritus (December)
- **2025** — Co-founded GPx with Lee Linden; raised $500M debut fund backed significantly by Peter Thiel

## Achievements

- Created iGoogle, Google's personalized homepage used by tens of millions of users
- Founded XGYC, one of the first systematic YC-focused investment vehicles
- Backed SpaceX, Anduril, OpenAI, Stripe, Scale AI, Affirm, Airbnb, and Oculus before they were household names
- Led Founders Fund's investment in Stemcentrx - the firm's largest exit at $10.2B acquired by AbbVie
- Wrote $400M in checks into Anduril Industries, now valued at $30.5B
- One of the earliest institutional investors in OpenAI (2016)
- Approximately 23 unicorn investments from 80+ companies backed
- ~20x overall return on invested capital vs. 5.2x venture industry average
- Built GPx to $500M close with Peter Thiel as a major backer

## Latest updates

- **2025-10** — GPx debut fund closes at $500M with Peter Thiel as a major backer
- **2025-07** — Announced GPx fund co-founded with Lee Linden of Quiet Capital, targeting $500M+
- **2024-12** — Transitioned from General Partner to Partner Emeritus at Founders Fund after ~16 years

## Links

- Website: https://www.foundersfund.com
- LinkedIn: https://www.linkedin.com/in/brian-singerman-9333b52
- Twitter/X: https://twitter.com/briansin

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Profile page: https://yespress.io/brian-singerman
Published by YesPress — https://yespress.io
Last updated: 2026-05-04