Andreessen Horowitz

About Andreessen Horowitz

One of Silicon Valley's most influential VC firms. 2025 mega-fund spanning growth ($6.75B), infrastructure ($1.7B), American Dynamism ($1.2B), Bio+Health ($700M) and more.

Investment Focus

Location / RegionUnited States

Funding StageSeed

Industry Focus

Ai Ml

Biotech

Consumer Commerce

Deep Tech

Defense

Digital Health

Enterprise Software

Fintech

Investor Signals Profile

active

Sweet Spot

Founders building capital-intensive, category-defining companies with decade-scale ambition

AI & SaaS

defense & hard-tech

crypto & web3

biotech & health

fintech-infrastructure

Bullish Signals

$15B raised — largest fund in a16z history, signalling maximum deployment capacityblog

Multi-stage structure lets a16z back founders from seed through growthblog

Validates long-horizon categories: AI, biotech, climate, fintech infrastructureblog

$90B AUM — #1 VC firm globally by assets (Jan 2026)wikipedia

32 unicorns backed since 2020 — most of any VC firmwikipedia

1,076 portfolio companies; 50 in American Dynamism alonewikipedia

Speedrun accelerator expanded: $1M checks, ~60 companies/cohortwikipedia

New Apps + Infra AI funds: $1.7B each deployed in Jan 2026wikipedia

American Dynamism II: $1.18B — doubled from $600M Fund Iwikipedia

Crypto V: $2B raised Mar 2026 — sustained web3 convictionwikipedia

32 fund vehicles across venture, growth, crypto, bio, defense, AIwikipedia

Annual American Dynamism Summit: Congress + DoD officials attendwikipedia

Growth V: $6.75B — largest single vehicle in firm historywikipedia

Founded 2009 with $300M; now $90B+ AUM in 16 yearswikipedia

American Dynamism Engineering Fellows Program launched 2024wikipedia

GitHub bet: $100M in → $1B+ on $7.5B Microsoft acquisitionwikipedia

Skype early contrarian bet returned win via $8.5B MSFT dealwikipedia

xAI investment: Twitter acquired by xAI for $45B Apr 2025wikipedia

Registered investment adviser since 2019 — broader mandate unlockedwikipedia

Bio + Health IV: $700M — continued life sciences commitment Jan 2026wikipedia

Games II: $600M Apr 2024 — doubled down on gaming verticalwikipedia

Okta Series A led 2010 — early cloud conviction validatedwikipedia

Larry Summers + Adrian Fenty as advisors — policy network depthwikipedia

Contrarian Signals

Fund explicitly rejects short-cycle, trend-rotating, incremental investment thesesblog

Not a fit for founders optimising for fast exits over enduring institutionsblog

Critics: no longer traditional VC — invests public equities, tokens, non-traditional assetswikipedia

Twitter bet lost $288M by Sep 2024wikipedia

Political controversy: Andreessen linked to Musk/DOGE; reputational risk for some founderswikipedia

Kickstarter blockchain pivot backfired — alienated users, damaged brandwikipedia

Yuga Labs SEC probe after a16z-led $450M roundwikipedia

Fast Company: a16z 'no longer a VC fund' — scope creep concernwikipedia

Adam Neumann Flow bet: $350M criticized post-WeWork debaclewikipedia

Competing for obvious alpha — less contrarian edge per Fast Companywikipedia

Andreessen linked to Musk DOGE recruitment — political exposure widenswikipedia

Founder Do's

Build for long development horizons — a16z supports multi-year timelines

Target systemic, category-defining innovation not incremental ideas

Operate in capital-intensive sectors: biotech, defense, hardware, climate

Think globally — fund backs founders across major tech hubs worldwide

Pitch decade-scale vision; speedrun accelerator open for pre-seed (<1% acceptance)

Founder Don'ts

Don't pitch narrow, short-cycle arbitrage plays — fund rejects incremental bets

Don't force artificial PMF timelines to appear investor-ready

Don't approach as single-stage — leverage their multi-stage continuity

Key GPs & Partners

Andreessen Horowitz (a16z)

General Partner / Firm

thesis-drivenpatient-capitalcommunity-builder

Marc Andreessen

Co-Founder & General Partner

contrarian-bettorpolitically-activetech-optimist

Ben Horowitz

Co-Founder & General Partner

operator-turned-investorlong-term-thinkerfounder-empathetic

Katherine Boyle

General Partner — American Dynamism

defense-tech-focusednational-interest-drivenThiel-influenced

David Ulevitch

General Partner — American Dynamism

hard-techhands-onboard-active

Erin Price-Wright

General Partner — American Dynamism

hard-techdefense-focused

Chris Dixon

General Partner — Crypto

crypto-nativeweb3-pioneercontrarian

Jeff Jordan

General Partner

marketplace-expertconsumer-focus

Martin Casado

General Partner

enterprise-focusdeep-techoperator-background

Andrew Chen

General Partner

growth-expertconsumer-focusgaming

Raghu Raghuram

General Partner

enterpriseoperator-turned-investorcloud-infra

Sriram Krishnan

General Partner

consumerenterpriseoperator-background

Peter J. Levine

General Partner

enterpriseinfrastructure

Vijay S. Pande

General Partner — Bio + Health

biotechlife-sciencesdeep-science

Scott Weiss

General Partner

enterpriseoperator-turned-investor

John O'Farrell

General Partner

enterpriseearly-hire

Margit Wennmachers

Partner Emeritus (formerly Operating Partner)

marketing-expertbrand-builder

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Fund Overview

Fund Size$15B

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Website

Key People

Marc Andreessen, Ben Horowitz

Andreessen Horowitz (a16z)General Partner / Firm

Marc AndreessenCo-Founder & General Partner

Ben HorowitzCo-Founder & General Partner

Katherine BoyleGeneral Partner — American Dynamism

David UlevitchGeneral Partner — American Dynamism

Erin Price-WrightGeneral Partner — American Dynamism

Chris DixonGeneral Partner — Crypto

Jeff JordanGeneral Partner

Martin CasadoGeneral Partner

Andrew ChenGeneral Partner

Raghu RaghuramGeneral Partner

Sriram KrishnanGeneral Partner

Peter J. LevineGeneral Partner

Vijay S. PandeGeneral Partner — Bio + Health

Scott WeissGeneral Partner

John O'FarrellGeneral Partner

Margit WennmachersPartner Emeritus (formerly Operating Partner)

About Andreessen Horowitz

Investment Focus

Investor Signals Profile

Sweet Spot

Bullish Signals

Contrarian Signals

Founder Do's

Founder Don'ts

Key GPs & Partners

Unlock Investor Signals

Fund Overview

Key People

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