Public company, workplace, funding, and market signals
Updated Mar 30, 2026
Merger / Acquisition (SpaceX acquisition)
Feb 2026 · Acquired by SpaceX — [xAI joins SpaceX announcement](https://x.ai/news/xai-joins-spacex) / [TechCrunch coverage](https://techcrunch.com/2026/02/02/elon-musk-spacex-acquires-xai-data-centers-space-merger)
Jan 2026 · Valor Equity Partners, Stepstone Group, Fidelity, Qatar Investment Authority (QIA), MGX, Baron Capital; strategic investors NVIDIA and Cisco Investments — [xAI Series E announcement](https://x.ai/news/series-e) / [CNBC](https://www.cnbc.com/2026/01/06/elon-musk-xai-raises-20-billion-from-nvidia-cisco-investors.html)
198 jobs at xAI
Secondary transaction (private)
Dec 2025
Jan 2025
Dec 2024 · Andreessen Horowitz (a16z), BlackRock, Fidelity, Kingdom Holding, Lightspeed, MGX, Morgan Stanley, OIA, QIA, Sequoia, Valor, Vy Capital, NVIDIA, AMD — [xAI Series C announcement](https://x.ai/news/series-c)
May 2024 · Valor Equity Partners, Vy Capital, Andreessen Horowitz, Sequoia Capital, Fidelity, Prince Alwaleed, Kingdom Holding Co. — [xAI Series B announcement](https://x.ai/news/series-b) / [Reuters](https://www.reuters.com/technology/elon-musks-xai-raises-6-bln-series-b-funding-round-2024-05-27)
Jan 2024 · (early investors reported in PitchBook) — [PitchBook xAI profile](https://pitchbook.com/profiles/company/533035-45)
Jan 2023
Founders
Co‑founder (departed) — AI researcher (Morph Labs) — [LinkedIn](https://www.linkedin.com/in/christian-szegedy-bb284816)
Elon Musk
Founder & CEO — [xAI company page](https://x.ai/company) / [Wikipedia](https://en.wikipedia.org/wiki/XAI_(company))
Co‑founder (departed) — Senior Staff Engineer (Shopify listing) — [LinkedIn](https://www.linkedin.com/in/gregyang)
Co‑founder (departed) — Senior Scientist (Pfizer listing) — [LinkedIn](https://www.linkedin.com/in/guodong-zhang-8916599)
Co‑founder, former Chief Engineer — [LinkedIn](https://www.linkedin.com/in/igor-babuschkin-9bb5bab6)
Co‑founder (departed) — current academic role reported; no active xAI listing — [LinkedIn profile variations / directory](https://www.linkedin.com/pub/dir/Jimmy/Ba)
Co‑founder, Infrastructure (departed) — [LinkedIn](https://www.linkedin.com/in/kyle-kosik-36431435)
Co‑founder (departed) — listed on LinkedIn as Developer at Siemens — [LinkedIn](https://www.linkedin.com/in/manuel-kroiss-0b56361b2)
Co‑founder (departed) — no confirmed xAI listing on LinkedIn as of March 2026
Founding member — listed as Founding Member (xAI) — [LinkedIn](https://www.linkedin.com/in/toby-pohlen-a22254104)
TechCrunch · Feb 2026
TechCrunch reports SpaceX’s acquisition of xAI (announced Feb 2, 2026), outlining plans to integrate xAI into SpaceX and pursue space-based data centers; article covers deal valuation and strategic rationale [TechCrunch](https://techcrunch.com/2026/02/02/elon-musk-spacex-acquires-xai-data-centers-space-merger).
CNBC / xAI announcement · Jan 2026
CNBC and xAI’s official announcement report an upsized $20 billion Series E (Jan 6, 2026) with strategic participation from NVIDIA and Cisco and a syndicate including Valor Equity Partners and sovereign funds [xAI announcement](https://x.ai/news/series-e) / [CNBC](https://www.cnbc.com/2026/01/06/elon-musk-xai-raises-20-billion-from-nvidia-cisco-investors.html).
xAI / TechCrunch coverage · Dec 2024
xAI’s Series C (Dec 23, 2024) raised reported capital (~$6B reported in company notices) with participation from NVIDIA, a16z, BlackRock, Fidelity and others to expand training infrastructure and product development [xAI announcement](https://x.ai/news/series-c).
Reuters / xAI announcement · May 2024
Reuters covered xAI’s $6B Series B (May 2024), reporting a post‑money valuation near $24 billion and listing key investors including Valor Equity Partners and major institutional backers [Reuters](https://www.reuters.com/technology/elon-musks-xai-raises-6-bln-series-b-funding-round-2024-05-27).