Reid Hoffman

LinkedIn co-founder; partner, Greylock

Reid Hoffman co-founded LinkedIn and is a partner at Greylock, where he focuses on businesses with network effects. His earlier experience includes SocialNet and PayPal, and his AI company-building work includes Inflection AI and Manas AI. He also writes and hosts conversations about entrepreneurship and AI. He remains a Microsoft director pending a previously announced departure at the company’s December 2026 annual meeting.

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Reid Hoffman portrait
Photo: Lisa Ferdinando / U.S. Department of DefenseCC BY 2.0 · Displayed in grayscale

At a glance

Reid Hoffman co-founded LinkedIn and is a partner at Greylock, where he focuses on businesses with network effects. His earlier experience includes SocialNet and PayPal, and his AI company-building work includes Inflection AI and Manas AI. He also writes and hosts conversations about entrepreneurship and AI. He remains a Microsoft director pending a previously announced departure at the company’s December 2026 annual meeting.

Current role
LinkedIn co-founder; Greylock partner; Manas AI co-founder
Education
Stanford University — symbolic systems; Oxford University — philosophy
Known for
LinkedIn; Greylock; Inflection AI; Manas AI
Board status
Microsoft director; not seeking re-election at the December 2026 annual meeting
Previously
SocialNet founder; PayPal executive vice president
Coverage
Networks; company building; venture capital; AI

Sources checked . Selected career background and milestones.

Career, in context.

Selected research, leadership and career milestones, newest first.

  1. Plans departure from Microsoft’s board

    Microsoft discloses Hoffman’s decision not to stand for re-election. Its filing says he will remain a director until the 2026 annual meeting, rather than leave immediately.

    Source: Microsoft SEC filing ↗
  2. Co-founds Manas AI

    Hoffman and Siddhartha Mukherjee launch an AI-driven drug-discovery company focused on developing medicines. The announcement describes computational chemistry, molecular docking and biology as parts of its platform.

    Source: Manas AI ↗
  3. Co-founds Inflection AI

    Mustafa Suleyman announces that he, Hoffman and Karén Simonyan are establishing Inflection AI, initially focused on consumer products built around natural-language interaction with computers.

    Source: Mustafa Suleyman / Greylock ↗
  4. Joins Microsoft’s board

    Microsoft appoints Hoffman as a director, effective immediately. The company identifies him as LinkedIn’s co-founder and a Greylock partner following its acquisition of LinkedIn.

    Source: Microsoft ↗
  5. Joins Greylock

    Hoffman becomes a partner at Greylock, extending his work from building internet companies to investing in early-stage businesses and advising founders on growth and networks.

    Source: Greylock ↗
  6. LinkedIn opens to users

    The professional network launches after development begins in Hoffman’s living room in 2002. LinkedIn’s own history distinguishes the company’s origins from its public launch date.

    Source: LinkedIn ↗
  7. Starts SocialNet

    Hoffman starts his first company after leaving Fujitsu. In an oral-history interview, he dates its initial financing to November 1997 and explains its relationship-matching concept.

    Source: Reid Hoffman oral history ↗

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