Menlo Park, US · Partner
Managing Partner at Andreessen Horowitz
Latest rounds
BacksRobotics
Andreessen HorowitzVC firm · US320cheques in 12 months1649all time110leddeployingRounds where a report named this person rather than a firm, matched on name: read it as a strong hint, not proof, since people share names.
Portfolio
Filings
Each row is a document a firm filed with a regulator: somebody signed it, and it carries a date.
The Full Ratchet · 15 Dec 2025 · 47 min
498. The Crypto x AI Convergence, the Truth About Stablecoins, Tokens vs Equity, and Whether NFTs Will Make a Comeback (Arianna Simpson)
WithArianna Simpson
MentionsAndreessen Horowitz
Arianna Simpson of Andreessen Horowitz joins Nick to discuss The Crypto x AI Convergence, the Truth About Stablecoins, Tokens vs Equity, and Whether NFTs Will Make a Comeback. In this episode we cover: Stable Coins and Their Impact on Crypto Geopolitical and Regulatory Risks for Stable Coins… More on the show's page
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StrictlyVC Download · 20 Aug 2021 · 41 min
A Sequoia-Backed Predictions Market & Talking Crypto Gaming with a16z's Arianna Simpson
WithArianna Simpson
MentionsAndreessen Horowitz
Connie & Alex interview the founders of Kalshi, a new Sequoia-backed startup that aims to let people wager on future events ranging from economics to the weather to public health, and then Connie talks to new Andreessen Horowitz GP Arianna Simpson about crypto gaming.Music: 1. "Inspired" by Kevin…
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Village Global Podcast · 31 Aug 2018 · 32 min
Crypto Stories: A Primer on Valuing Crypto Assets with Arianna Simpson and Travis Kling
WithArianna Simpson
MentionsBrett Bolkowy
Arianna Simpson (@AriannaSimpson), VC and managing director at Autonomous Partners and Travis Kling (@Travis_Kling) of Ikigai Asset Management join Erik on this episode. Arianna starts by explaining her post about false precision and why you don't want to be "very precisely wrong." They talk… More on the show's page
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Invest Like the Best · 24 Apr 2018 · 54 min
Arianna Simpson – The Crypto Landscape - [Invest Like the Best, EP.84]
WithArianna Simpson
MentionsFidelity
My guest today is Arianna Simpson, who has spent her career in an around the world of technology working at startups, Facebook, and now in venture capital as an investor focused on the world of cryptocurrencies. I met Arianna when I hosted a panel at a big investing conference in New York City and… More on the show's page
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Episodes that name Arianna Simpson in their description, which is not the same as being on them.
The Full Ratchet · 30 Apr 2026 · 6 min
Investor Stories 473: Speed at Legora, Intensity at Mysten, Mastery at Heights Labs, Why These Founders Stand Out (Effron, Austin, Simpson)
MentionsAndreessen HorowitzRedpointArianna SimpsonEthan AustinJacob Effron
On this special segment of The Full Ratchet, the following Investors are featured: Jacob Effron of Redpoint Ethan Austin of Outside VC Arianna Simpson of Andreessen Horowitz We asked guests to discuss the most visionary founder that they've worked with and what makes them so special.on they've… More on the show's page
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The Full Ratchet · 16 Apr 2026 · 7 min
Investor Stories 471: Missing Great AI Bets, Losing Conviction, and Overweighting Founders, Lessons from Redpoint, a16z, and Outside VC (Effron, Austin, Simpson)
MentionsRedpointAndreessen HorowitzArianna SimpsonEthan AustinJacob Effron
On this special segment of The Full Ratchet, the following Investors are featured: Jacob Effron of Redpoint Ethan Austin of Outside VC Arianna Simpson of Andreessen Horowitz We asked guests to tell the most important lesson they've learned in their career. The host of The Full Ratchet is Nick… More on the show's page
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The Full Ratchet · 23 Mar 2026 · 5 min
Investor Stories 467: Investors from Techstars, Redpoint, and Andreessen Horowitz on Strategy, Writing, and Building an Edge in Venture (Cohen, Effron, Simpson)
MentionsAndreessen HorowitzRedpointTechstarsDavid CohenArianna SimpsonJacob Effron
On this special segment of The Full Ratchet, the following Investors are featured: David Cohen of Techstars Jacob Effron of Redpoint Arianna Simpson of Andreessen Horowitz We asked guests for the most important piece of advice that they'd share with folks early in their venture career. The… More on the show's page
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The Full Ratchet · 9 Mar 2026 · 7 min
Investor Stories 464: Anti Portfolio Confessions: Missing Twilio, Zoom, DocuSign, MongoDB, and Solana (Austin, Simpson, Chaddha)
MentionsAndreessen HorowitzArianna SimpsonEthan AustinNavin Chaddha
On this special segment of The Full Ratchet, the following Investors are featured: Ethan Austin of Outside VC Arianna Simpson of Andreessen Horowitz Navin Chaddha of Mayfield Each investor highlights a situation where they decided not to invest, why they passed, and how it played out. The host… More on the show's page
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The Full Ratchet · 23 Feb 2026 · 7 min
Investor Stories 461: Feast and Famine in Crypto, When to Take the Off Ramp, and Evaluating Founder Temperament (Simpson, Chaddha, Orthlieb)
MentionsAndreessen HorowitzArianna SimpsonBen OrthliebNavin Chaddha
On this special segment of The Full Ratchet, the following Investors are featured: Arianna Simpson of Andreessen Horowitz Navin Chaddha of Mayfield Ben Orthlieb of Blue Moon We discuss major conflicts that guests have faced and how they resolved them. The host of The Full Ratchet is Nick… More on the show's page
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