COMPANIES · FINANCIAL & INVESTMENT

Founders Fund

San Francisco venture capital firm co-founded by Peter Thiel that has become a lead or co-lead investor across several of the AI economy's highest-profile private companies, including Anduril, Anthropic and OpenAI.

InfrastructureFinancial & investment
What it does

San Francisco venture capital firm co-founded by Peter Thiel that has become a lead or co-lead investor across several of the AI economy's highest-profile private companies, including Anduril, Anthropic and OpenAI.

Why it matters

Founders Fund deployed its prior $4.6B fund in under a year, largely on outsized checks into Anduril, Anthropic and OpenAI -- a small number of massive, concentrated bets rather than a broad portfolio, reflecting how much capital frontier AI and defense-tech companies now require per round.

How it makes money

Earns management fees and carried interest on the venture funds it raises from its own limited-partner investors.

Geography

United States

AI stack position

Financial and investment. The investors and financial firms whose capital is funding the AI buildout. These companies don't build AI technology themselves — they supply the enormous amounts of money it takes to build everything else on this map.

Same-layer peers

Same-layer peers share an editorial stack classification; that alone does not establish direct competition.

Connections (5)

Every connection below is tied to a readable source, date, classification and statement of its limits. A company source establishes what that company stated; it does not necessarily provide independent confirmation.

Current relationships (1)

Founders Fund invested in SpaceX
Invested inCurrent
Fortune reported on June 12, 2026 that Founders Fund first backed SpaceX in 2008 with a $20 million investment and was among the venture firms holding stakes at the IPO.

Source: 2026-06-12 · reviewed 2026-09-24

Evidence: Secondary reporting (unconfirmed by primary parties) · Reported operating

Limits: The report does not state Founders Fund's current ownership percentage, how much it has sold, or whether it holds Class A or other shares. Valuation figures quoted in such coverage are estimates, not disclosed holdings.

Founders Fund, Andreessen Horowitz, Valor, and the biggest VC winners from SpaceX's IPO ↗

Dated or announced (4)

Founders Fund co-led an investment in Anthropic
Invested inDated / announced
Founders Fund is named as a co-lead investor in Anthropic's $30 billion Series G round (February 2026).

Source: 2026-02-12 · reviewed 2026-09-21

Evidence: Primary-source statement · Completed funding round, February 2026

Limits: Anthropic's announcement does not disclose individual investors' specific check sizes.

Anthropic raises $30B Series G at $380B post-money valuation ↗
Founders Fund led a $1 billion investment in Anduril
Invested inDated / announced
Founders Fund led a $1 billion investment in Anduril Industries' oversubscribed $2.5 billion round (June 2025), which valued the company at $30.5 billion.

Source: 2025-06-05 · reviewed 2026-09-21

Evidence: Secondary reporting (unconfirmed by primary parties) · Completed funding round, June 2025

Limits: Deal-term figures come from press reporting rather than a joint Founders Fund/Anduril statement; Founders Fund's own portfolio page confirms Anduril as a holding but does not disclose amount, date or valuation.

With massive funding round and $31 billion valuation, Anduril is nearing the size of defense industry giants ↗
Founders Fund invested in OpenAI
Invested inDated / announced
Founders Fund lists OpenAI on its own portfolio page as an investment; it has invested across multiple OpenAI funding rounds without a single disclosed aggregate amount.

Source: Source undated · reviewed 2026-09-21

Evidence: Primary-source statement · Ongoing portfolio holding, multiple rounds

Limits: The portfolio page does not disclose specific round dates or amounts; per-round detail was not independently verified for this record.

Founders Fund portfolio ↗
Founders Fund invested in Palantir Technologies
Invested inDated / announced
Founders Fund lists Palantir Technologies on its own portfolio page as an investment.

Source: Source undated · reviewed 2026-09-21

Evidence: Primary-source statement · Ongoing portfolio holding

Limits: The portfolio page does not disclose investment date, amount or current stake size; Founders Fund was an early, well-known Palantir backer but this record does not establish a current ownership percentage.

Founders Fund portfolio ↗
Evidence for this profile

Founders Fund corporate overview ↗
Reviewed

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Inclusion in this database is not an endorsement of a company or its securities. Nothing here is a recommendation to buy or sell anything, and none of it is individualized investment advice. See the disclosures. Data: AI Map v3.22, released .