Refolk

Founders Fund portfolio in San Francisco

Contrarian venture firm investing in deeptech, defence, and breakthrough software. Filtered to companies headquartered in San Francisco.

Built from a search like: Founders Fund-backed companies in San Francisco

Ranked by current headcount across Founders Fund-backed companies in San Francisco. Refreshed monthly.

  1. 1
    Airbnb· San Francisco, California, United States

    Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays, experiences and services that make it possible for guests to connect with communities in a more authentic way.

    • Post-IPO debt
    • 72.5k employees
    • Founded 2007
  2. 2
    Lyft· San Francisco, California, United States

    Whether it’s an everyday commute or a journey that changes everything, Lyft is driven by our purpose: to serve and connect. In 2012, Lyft was founded as one of the first ridesharing communities in the United States. Now, millions of drivers have chosen to earn on billions of rides. Lyft offers rideshare, bikes, and scooters all in one app — for a more connected world, with transportation for everyone.

    • Post-IPO debt
    • 28.5k employees
    • Founded 2012
  3. 3
    Stripe· South San Francisco, California, United States

    Stripe builds programmable financial services. Millions of companies—from the world’s largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Headquartered in San Francisco and Dublin, the company aims to increase the GDP of the internet.

    • Secondary
    • 17.2k employees
    • Founded 2010
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  5. 4
    OpenAI· San Francisco, California, United States

    OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. AI is an extremely powerful tool that must be created with safety and human needs at its core. OpenAI is dedicated to putting that alignment of interests first — ahead of profit.To achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. Our investment in diversity, equity, and inclusion is ongoing, executed through a wide range of initiatives, and championed and supported by leadership.At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.

    • Series unknown
    • 10.5k employees
    • Founded 2015
  6. 5
    Rippling· San Francisco, California, United States

    Rippling is a workforce management system that eliminates the friction from running a business. Today, most companies struggle with everything from routine tasks, like running payroll, to cross-functional planning, like aligning on headcount. That’s because all their data related to people, processes, and systems is scattered in a hundred places. Rippling has every application you need to run your business—from applicant tracking and payroll to IT and expenses—in one place. But unlike other systems, Rippling sits on top of a unified platform. Data flows dynamically between Rippling’s applications, giving every team a shared source of truth, the power to automate processes, and access to the insights they need. This allows your business to execute better, faster.Based in San Francisco, CA, Rippling has raised $1.2B from the world’s top investors—including Kleiner Perkins, Founders Fund, Sequoia, Greenoaks, and Bedrock.Get help: rippling.com/contactLicensing details: https://app.rippling.com/licensing

    • Series G
    • 7.8k employees
    • Founded 2016

Founders Fund portfolio companies in San Francisco

Founders Fund’s San Francisco portfolio is one of the most active recruiting pools in the market. The list above ranks Founders Fund-backed companies headquartered in San Francisco by current headcount, drawn from public LinkedIn and Crunchbase records. With 138 matching companies in Refolk’s index, you can see exactly where the Founders Fund thesis has landed locally.

Founders Fund companies in San Francisco tend to attract a specific type of operator - a founder or early hire bought into both the firm’s thesis and the city’s ecosystem. That makes the engineers and designers at these companies particularly valuable signals.

Refolk lets you reach this pool. Ask for Founders Fund companies in San Francisco hiring founding engineers” or “founders of Founders Fund-backed companies in San Francisco who left in the last year” and Refolk returns a ranked shortlist with evidence behind each match.

How this list is built

Refolk pulled companies whose disclosed Crunchbase investor list includes Founders Fund and whose HQ is in San Francisco, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes monthly.

Last refreshed: Wed, 19 Aug 2026 21:19:17 GMT

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How is this ranking built?

The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

How fresh is the data?

The underlying index updates continuously and this ranking is rebuilt monthly. Last refreshed: Wed, 19 Aug 2026 21:19:17 GMT. For a list built against the index as it stands today, sign up and run the search live.

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