Venture Capital

Founders Fund

Founders Fund is a San Francisco-based venture capital firm founded in 2005 by Peter Thiel, Ken Howery, and Luke Nosek, best known for the credo "we wanted flying cars, instead we got 140 characters" and a contrarian appetite for hard science and frontier technology over incremental consumer apps. The firm backs category-defining, often monopoly-scale companies across aerospace and defense, artificial intelligence, biotech, fintech and crypto, energy, semiconductors, robotics, and deep tech, investing from seed through late-stage growth with an increasingly concentrated, high-conviction style (its recent growth funds put hundreds of millions of dollars into a small number of companies). Founders Fund manages roughly $17 billion in assets as of 2025 and is headquartered at the Letterman Digital Arts Center in San Francisco's Presidio. Its portfolio includes many of the defining technology companies of the era, among them SpaceX, Palantir, Anduril, Stripe, Airbnb, Facebook, Neuralink, OpenAI, DeepMind, Ramp, Nubank, Spotify, and Figma.

61 portfolio companies 26 publish APIs here 8 properties
Venture CapitalSeedSeries AGrowthDeep TechAerospace and DefenseArtificial IntelligenceFintechSan FranciscoUnited States

Founders Fund has 61 portfolio companies tracked on the APIs.io network, of which 26 (43%) publish APIs indexed here.

Its highest-rated API providers on the network are Stripe, Asana, Twilio, Figma, Oculus.

Portfolio on the Network

Portfolio companies that publish APIs indexed on APIs.io, grouped by their API Evangelist rating. Exemplar and Strong are expanded by default.

Exemplar 3 Complete, well-documented, and agent-ready
Strong 4 Solid coverage with minor gaps
Developing 4 Usable, with meaningful gaps to close
Thin 10 Limited public surface area
Emerging 5 Early or largely undocumented

Rest of Portfolio

35 further portfolio companies that don’t yet have a provider page on the network.

ArqAvenBuildOpsCedarCredit KarmaDeepMindEnduroSatEnterFlock SafetyFoundGeneral MatterHadrianImpulse SpaceKavakLighterMnzilMonacoNanotronicsNeticNeuralinkNominalOscar HealthPaxosPsiQuantumSolugenSword HealthTagomiThe Boring CompanyTrabaTrade RepublicUntilVardaWaveWishWorkrise

Scroll for all 35

Properties

Portfolio

Where the firm publishes its investments

Team

Partners and investing staff

Content

Blog, podcast, newsletter, and research

Firm

The firm itself

Source (apis.yml)

apis.yml Raw ↑
aid: founders-fund
name: Founders Fund
description: >-
  Founders Fund is a San Francisco-based venture capital firm founded in 2005 by
  Peter Thiel, Ken Howery, and Luke Nosek, best known for the credo "we wanted
  flying cars, instead we got 140 characters" and a contrarian appetite for hard
  science and frontier technology over incremental consumer apps. The firm backs
  category-defining, often monopoly-scale companies across aerospace and defense,
  artificial intelligence, biotech, fintech and crypto, energy, semiconductors,
  robotics, and deep tech, investing from seed through late-stage growth with an
  increasingly concentrated, high-conviction style (its recent growth funds put
  hundreds of millions of dollars into a small number of companies). Founders
  Fund manages roughly $17 billion in assets as of 2025 and is headquartered at
  the Letterman Digital Arts Center in San Francisco's Presidio. Its portfolio
  includes many of the defining technology companies of the era, among them
  SpaceX, Palantir, Anduril, Stripe, Airbnb, Facebook, Neuralink, OpenAI,
  DeepMind, Ramp, Nubank, Spotify, and Figma.
x-type: venture-capital
x-category: Venture Capital
image: https://foundersfund.com/wp-content/themes/foundersfund/assets/images/logo.svg
created: '2026-07-17'
modified: '2026-07-17'
specificationVersion: '0.20'
tags:
  - Venture Capital
  - Seed
  - Series A
  - Growth
  - Deep Tech
  - Aerospace and Defense
  - Artificial Intelligence
  - Fintech
  - San Francisco
  - United States
apis: []
common:
  - type: Website
    url: https://foundersfund.com
  - type: Portfolio
    url: https://foundersfund.com/portfolio/
  - type: Portfolio
    url: portfolio/founders-fund-portfolio.yml
  - type: Team
    url: https://foundersfund.com/our_team
  - type: Team
    url: team/founders-fund-team.yml
  - type: InvestmentThesis
    url: https://foundersfund.com/2018/01/manifesto
  - type: Blog
    url: https://foundersfund.com/anatomy-of-next/
  - type: Crunchbase
    url: https://www.crunchbase.com/organization/founders-fund
  - type: Features
    data:
      - 'Stage: Seed, Series A, Growth (seed through late-stage)'
      - 'Sectors: aerospace and defense, artificial intelligence, biotech, fintech and crypto, energy, semiconductors, robotics, deep tech, consumer'
      - 'Geography: primarily United States, with global investments (Europe, Latin America)'
      - 'AUM: ~$17B (2025, reported)'
      - 'Founded: 2005'
      - 'Founders: Peter Thiel, Ken Howery, Luke Nosek'
      - 'HQ: Letterman Digital Arts Center, San Francisco, CA'
    sources:
      - https://en.wikipedia.org/wiki/Founders_Fund
      - https://foundersfund.com
    updated: '2026-07-17'
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com
    url: https://apievangelist.com
  - FN: APIs.json
    url: https://apisjson.org
  - FN: Founders Fund
    url: https://foundersfund.com