The founders, funds, and sovereigns behind every major AI lab — documented roles, stakes, and actions, with sources. Facts only: no characterizations. Ownership figures are estimates unless tied to filings; ⚠ marks claims recalled from research and awaiting primary‑source verification. This is the file most in need of pre‑publication legal review, and it will get it.
| Person / institution | Documented facts | Sources |
|---|---|---|
| Sam Altman co‑founder & CEO | Holds no equity in OpenAI; a 2024 plan would have granted a stake but the 2025 recapitalization included none. Former Y Combinator president. ⚠ Personal stakes: Helion (fusion), Oklo (nuclear), Retro Biosciences, World (iris‑scan ID). | RevenueMemo |
| OpenAI Foundation | Nonprofit parent holds ~26% (~$130B at early‑2026 valuation). | RevenueMemo |
| Microsoft Satya Nadella, CEO | ~27% at the 2025 recapitalization; revenue share now capped, Azure exclusivity ended, resell rights through 2032. | Penchan, AIFT |
| Masayoshi Son SoftBank | Led the $40B round (2025, $30B of it, contingent on restructuring); committed $30B more in the $122B round (Mar 2026, $852B post‑money). | TSG, BeBeez |
| Amazon Andy Jassy, CEO | Anchor commitment up to $50B in the 2026 round — while remaining the largest investor in rival Anthropic. | Clay, AIFT |
| Nvidia Jensen Huang, CEO | $30B committed in the 2026 round, partly as dedicated GPU capacity; also a 2024 investor — supplier‑investor circularity. | Clay |
| Josh Kushner Thrive Capital | Led the Oct 2024 $6.6B round (~$1.2B); consistent backer since 2023; bought again in the $500B‑valuation secondary. | Clay, TSG |
| Vinod Khosla Khosla Ventures | Earliest VC backer (~$50M reported); ~$405M more in Oct 2024. | Clay |
| Marc Andreessen & Ben Horowitz a16z | Invested from 2023; co‑led the 2026 $122B round. (Firm also holds xAI and Mistral; Andreessen sits on Meta's board.) | IPO Club, Tracxn |
| MGX Abu Dhabi sovereign fund | Invested from Oct 2024; participant in the 2026 round. ⚠ Chaired by Sheikh Tahnoun bin Zayed, UAE national security adviser. | Tracxn |
| The institutional bench | D.E. Shaw, TPG, T. Rowe Price, BlackRock, Blackstone, Sequoia, Temasek, Fidelity, Coatue, Dragoneer, Altimeter — plus a $3B retail tranche via JPMorgan, Citi, Goldman, Morgan Stanley et al. | BeBeez, Tech Insider |
| Early donors | Elon Musk (co‑founder; ~$44M donated 2016–2020; departed 2018; lost his suit against OpenAI, May 2026), Reid Hoffman, Peter Thiel, Jessica Livingston. | IPO Club, Clay, AIFT |
| Status | Confidential IPO filing June 8, 2026; targeting a $1T+ listing. | AIFT |
| Person / institution | Documented facts | Sources |
|---|---|---|
| Dario & Daniela Amodei CEO & President, sibling co‑founders | Former OpenAI VP of Research and VP of Safety; left over safety disagreements (2021). Founders + employees are the largest collective equity block; voting control routes through a Long‑Term Benefit Trust (Delaware PBC). | GetAIPerks, AIFT |
| Other co‑founders | Include Tom Brown (GPT‑3 lead author) and Jack Clark (former OpenAI policy director). | GetAIPerks |
| Amazon | ~$8B invested + up to $25B more agreed Apr 2026; stake est. mid‑teens %; carried at ~$74.2B (Q1 2026); booked $16.8B pre‑tax Q1 2026 gains on the position; Anthropic committed >$100B to AWS chips/cloud over a decade; no voting rights or board seats. | Fortune, StockAnalysis |
| Google / Alphabet Sundar Pichai, CEO | 14% per 2025 court filings, contractually capped at 15%; no voting rights or board seats; ~$135B paper value at the $965B mark. | Fortune |
| Sovereign & institutional | GIC (Singapore), MGX (UAE), Qatar Investment Authority, ICONIQ, Lightspeed, Sequoia, Coatue, Fidelity, Menlo Ventures, Spark Capital, Salesforce Ventures (~$5B), Altimeter, Dragoneer, Greenoaks, Baillie Gifford, Blackstone, D1 — 94+ investors across 18 rounds. | AIFT, Tracxn |
| Historical | ⚠ FTX/Sam Bankman‑Fried held an early stake (~$500M, 2022), sold during FTX bankruptcy (2024), reportedly in part to ATIC Third International (Abu Dhabi). ⚠ Early backers reported: Jaan Tallinn, Dustin Moskovitz, Eric Schmidt. | verify |
| Status | $965B Series H (May 2026); secondaries implying >$1T; confidential IPO filing June 1, 2026. | AIFT, Fortune |
| Person / institution | Documented facts | Sources |
|---|---|---|
| Elon Musk founder & controller | Founder, largest shareholder, majority stake; merged xAI with X Corp (2025), so Grok spend also flows to the same individual's social platform. Also CEO of Tesla and SpaceX. | WITOO |
| Investors | Saudi Public Investment Fund, Sequoia, a16z, Fidelity, Valor Equity Partners (⚠ founder Antonio Gracias, longtime Musk associate). ⚠ Kingdom Holding (Prince Alwaleed bin Talal) reported in the 2024 round. | WITOO · verify |
| Person / institution | Documented facts | Sources |
|---|---|---|
| Larry Page & Sergey Brin Alphabet co‑founders | ⚠ Majority voting control via Class B supervoting shares despite minority economic stakes (exact math to be replaced from DEF 14A proxy). | verify vs. proxy |
| Mark Zuckerberg Meta founder & CEO | ⚠ Majority voting control via Class B shares (~61% of votes on ~13% economics, per past proxies). Board has included Marc Andreessen (since 2008); Peter Thiel served 2005–2022 as first outside investor. | verify vs. proxy |
| Arthur Mensch, Guillaume Lample, Timothée Lacroix Mistral co‑founders | ⚠ Ex‑DeepMind (Mensch) and ex‑Meta (Lample, Lacroix). Reported investors: ASML (€1.3B lead, 2025, ~11%), Xavier Niel, Eric Schmidt (also an early Anthropic backer ⚠), a16z, General Catalyst, Lightspeed, Nvidia, Microsoft (minor). Defense ties: Helsing partnership; French Army AMIAD agreement. | verify |
| Liang Wenfeng DeepSeek founder | ⚠ Founds and funds DeepSeek through High‑Flyer, the quantitative hedge fund he co‑founded; sole known controller; PRC jurisdiction. | verify |
| Jack Ma / Joe Tsai Alibaba (Qwen) | ⚠ Co‑founder and chairman respectively; public company; PRC jurisdiction. | verify |
The enrichment graph has cycles: Google is a scored lab and an investor in Anthropic; Microsoft holds OpenAI and a sliver of Mistral; Amazon now holds both leaders; the largest asset managers hold everything. So the router's beneficiary math weights control structures heavily — sole control (xAI), supervoting founders (Alphabet, Meta), trust oversight (Anthropic), foundation ownership (OpenAI) — and treats overlapping passive capital as near‑constant background it can't route around, which the receipt discloses rather than hides. The one place your spend truly changes hands: the local and open tiers, where it approaches zero.