Reid Hoffman
About Reid Hoffman
Reid Hoffman is based in Palo Alto, California. His current role is Co-Founder of Manas AI. Crunchbase also lists him on the Sanmai board and as a former board member at Coda. Crunchbase records an M.St. in Philosophy from the University of Oxford. Wikipedia adds that he holds a B.S. from Stanford University.
Hoffman co-founded LinkedIn in 2003. Before that he was executive vice president at PayPal, where he was a founding board member and handled the company's external relationships, according to Greylock. He became a Microsoft board member in March 2017, after Microsoft agreed to acquire LinkedIn in 2016.
Hoffman joined Greylock Partners in 2009. His Greylock profile says he focuses on early-stage investing in products that can reach hundreds of millions of participants, with a core focus on businesses with network effects. Crunchbase counts 8 companies he has founded.
Crunchbase lists 107 investments across 92 portfolio companies. Of these, 11 were lead investments. It also records 39 exits, 4 of them by IPO.
An Achievement.org profile says he made angel investments in more than 80 technology start-ups. It names Airbnb, Groupon, Zynga and Flickr among them. Greylock says he was a board observer for Airbnb. It also credits him with helping Aurora scale. Other companies reported in his portfolio include Edmodo, Helion Energy, Blockstream and Coda.
At Greylock, Achievement.org says he helped guide the firm's Series A investment in Figma in 2015. Figma went public in 2025.
Crunchbase counts 14 AI investments since 2023. TIME reported in 2023 that all of his investments in the previous two years had been related to AI.
Hoffman was an early investor in OpenAI, when it was still a nonprofit, according to CNBC. He resigned from the OpenAI board on March 3, 2023, to avoid conflicts of interest with his AI investments, per Wikipedia.
In 2022 he co-founded Inflection AI with Mustafa Suleyman and Karén Simonyan. The company raised $1.3 billion at a $4 billion valuation in June 2023. In March 2024, Suleyman and Simonyan left to start Microsoft AI, and Microsoft hired nearly all of Inflection's staff.
In January 2025 he launched Manas AI with oncologist Dr. Siddhartha Mukherjee. Manas uses AI for drug discovery, starting with aggressive cancers such as prostate cancer, lymphoma and triple-negative breast cancer. CNBC reported a $24.6 million seed round led by General Catalyst and Hoffman, with participation from Greylock.
Hoffman's stated focus is early-stage companies with network effects, and products that can reach very large numbers of users. Achievement.org lists his Greylock focus areas as enterprise software, consumer internet, mobile, social gaming, online marketplaces, payments and social networks. His recent work has centered on AI, including foundation models, applied AI products, AI for the workforce and AI for drug discovery.
He has invested through Greylock and as an individual. His portfolio also includes non-software companies such as Helion Energy (nuclear fusion) and Aurora (autonomous driving). He is based in the Bay Area, but his portfolio is not limited to one region. Entrepreneurs First, a talent investor that backs founders before they have a company, is among his Crunchbase-listed investments.
His typical check size is not public, so it is not stated here. Founders should not assume a figure.
- Manas AI: AI drug discovery company he co-founded with Dr. Siddhartha Mukherjee. It launched in January 2025 with a $24.6 million seed round.
- Inflection AI: Personal AI company behind the Pi chatbot. He co-founded it in 2022.
- OpenAI: Early investor while it was a nonprofit. He left the board in March 2023.
- World Labs: AI company listed in his Crunchbase AI portfolio.
- Reflection AI: AI company listed in his Crunchbase AI portfolio.
- Applied Intuition: Listed in his Crunchbase AI portfolio.
- Every Media, Arcade, Resolve.ai, Workhelix, Brain Co., Rapport: Other AI companies listed in his Crunchbase AI portfolio.
- Entrepreneurs First: Talent investor that backs founders at the earliest stage. He is also a board director, per Greylock.
- Airbnb: Early investor and board observer.
- Aurora: Self-driving technology company where he is a board director, per Greylock.
- Facebook, Flickr, Zynga, Groupon: Earlier consumer internet angel investments.
- crunchbase.com/person/reid-hoffman
- greylock.com/team/reid-hoffman
- cnbc.com/2025/02/02/reid-hoffman-launches-manas-ai-a-new-drug-discover
- en.wikipedia.org/wiki/Reid_Hoffman
- en.wikipedia.org/wiki/Inflection_AI
- achievement.org/achiever/reid-hoffman
- time.com/collections/time100-ai/6309447/reid-hoffman
- fourweekmba.com/reid-hoffman
AI portfolio
Investing activity
Reid Hoffman has made 107 investments according to Crunchbase across 92 portfolio companies, and has led 11 rounds, seen 39 exits, 4 of them by IPO and founded 8 companies. 14 of those investments since 2023 were in AI companies, including Every Media, Arcade, Resolve.ai, Workhelix and World Labs.
Reid Hoffman appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $7M. The most recent is Niteshift (Seed, $7M, Jun 2026).
Reid Hoffman most often invests alongside Greylock’s Jerry Chen, Ankur Goyal, Olivier Pomel and Misha Laskin, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Reid Hoffman
Does Reid Hoffman invest in AI startups?
Yes. Crunchbase lists 14 AI investments since 2023. They include World Labs, Reflection AI, Applied Intuition, Inflection AI and Manas AI. He also co-founded Inflection AI and Manas AI.
What is Reid Hoffman's typical angel check size?
It is not public. The sources reviewed did not state a typical check size, so none is given here.
What kind of companies does Reid Hoffman look for?
Greylock says his core focus is early-stage businesses with network effects. These are products that can reach hundreds of millions of participants.
Which firm is Reid Hoffman affiliated with as an investor?
He has been a partner at Greylock Partners since 2009. He also invests personally, and his family foundation has funded some AI investments, according to Wikipedia.
How many investments has Reid Hoffman made?
Crunchbase lists 107 investments across 92 portfolio companies. It counts 11 lead investments and 39 exits, 4 of them by IPO.
How can founders contact Reid Hoffman?
He is on LinkedIn at linkedin.com/in/reidhoffman and on X as @reidhoffman. His personal site is reidhoffman.org. No public pitch process is listed in the sources reviewed.
Is Reid Hoffman an angel investor?
Yes. Reid Hoffman invests personally as an angel and is Co-Founder at Manas AI. Crunchbase counts 107 investments and 39 exits.
What AI companies has Reid Hoffman invested in?
Reid Hoffman's AI investments include Every Media, Arcade, Resolve.ai, Workhelix, World Labs, Inflection AI, Manas AI and Brain Co.. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
Where is Reid Hoffman based?
Reid Hoffman is based in Palo Alto, California, United States.
What stage does Reid Hoffman invest at?
In the rounds tracked on Lounge, Reid Hoffman has invested at Seed, with a median round of $7M.