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Andreessen Horowitz

North America, California, United States, Menlo Park

Description

Andreessen Horowitz (a16z) is a prominent venture capital firm established in 2009 by technology luminaries Marc Andreessen and Ben Horowitz. Headquartered in Menlo Park, California, a16z quickly distinguished itself from traditional VC firms with its "software is eating the world" thesis, focusing on disruptive technologies across various sectors. The firm operates as a stage-agnostic investor, deploying capital from seed to growth stages, and has become a significant force in the global technology ecosystem.

A defining characteristic of a16z's approach is its "VC as a service" model, providing extensive operational support to its portfolio companies through a dedicated team of operating partners specializing in areas like talent, marketing, and business development. This hands-on strategy aims to help founders build enduring companies beyond just capital injection. The firm manages substantial assets, with over $35 billion in assets under management across its diverse range of funds, including dedicated vehicles for crypto, bio+health, fintech, and games.

a16z has built an impressive portfolio of companies that have reshaped industries, including early investments in giants like Facebook, Twitter, Airbnb, and Coinbase. More recently, their portfolio includes leading companies such as Stripe, Figma, and Roblox. The firm continues to raise significant capital, demonstrating its commitment to new frontiers; for instance, in 2023, they announced the close of $7.2 billion across three new funds targeting growth, early-stage, and seed investments, underscoring their broad investment mandate. Their influence extends beyond funding, as they are also prolific content creators, sharing insights through podcasts and articles that shape industry discourse.

Andreessen Horowitz's stage-agnostic strategy means their initial check sizes vary considerably. For seed-stage companies, they typically invest from $500,000, providing crucial early capital to nascent ventures. At the other end of the spectrum, for growth-stage companies, their first checks can extend up to $150,000,000 or more, often leading significant funding rounds for more mature private companies seeking to scale rapidly. This wide range reflects their commitment to supporting companies throughout their entire lifecycle.

Investor Profile

Andreessen Horowitz has backed more than 1,653 startups, with 133 new investments in the last 12 months alone. The firm has led 728 rounds, about 44% of its total and boasts 226 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Series A, Seed, Series B rounds (top funding stages).
  • Majority of deals are located in United States, Canada, United Kingdom.
  • Strong thematic focus on Software, Information Technology, Artificial Intelligence (AI).
  • Led 60 rounds in the past year.
  • Typical check size: $500K – $150M.

Stage Focus

  • Series A (26%)
  • Seed (24%)
  • Series B (19%)
  • Series C (11%)
  • Series D (6%)
  • Series Unknown (5%)
  • Series E (3%)
  • Pre Seed (1%)
  • Series F (1%)
  • Initial Coin Offering (1%)

Country Focus

  • United States (90%)
  • Canada (2%)
  • United Kingdom (1%)
  • Colombia (1%)
  • Brazil (1%)
  • Germany (1%)

Industry Focus

  • Software
  • Information Technology
  • Artificial Intelligence (Ai)
  • Enterprise Software
  • Saas
  • Fintech
  • Analytics
  • Financial Services
  • Health Care
  • Internet
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Andreessen Horowitz frequently co-invest with?

Sequoia Capital
North America, California, United States, Menlo Park
Co-Investments: 95
Kleiner Perkins
North America, California, United States, Menlo Park
Co-Investments: 60
General Catalyst
North America, Massachusetts, United States, Cambridge
Co-Investments: 92
Google Ventures
North America, California, United States, Mountain View
Co-Investments: 84
New Enterprise Associates
North America, California, United States, Menlo Park
Co-Investments: 63
Y Combinator
North America, California, United States, Mountain View
Co-Investments: 102
SV Angel
North America, California, United States, San Francisco
Co-Investments: 153
Greylock
North America, California, United States, Menlo Park
Co-Investments: 62
Founders Fund
North America, California, United States, San Francisco
Co-Investments: 62
Khosla Ventures
North America, California, United States, Menlo Park
Co-Investments: 60

Which angels does Andreessen Horowitz often collaborate with?

Balaji Srinivasan
Asia, Central Region, Singapore, Singapore
Shared Deals: 13
GR
North America, California, United States, San Francisco
Shared Deals: 13
DF
North America, California, United States, Penngrove
Shared Deals: 12
PB
North America, California, United States, Mountain View
Shared Deals: 13
AO
North America, California, United States, San Francisco
Shared Deals: 15
NR
North America, California, United States, San Francisco
Shared Deals: 26
MO
North America, California, United States, Beverly Hills
Shared Deals: 16
ML
North America, California, United States, San Francisco
Shared Deals: 15
AK
North America, California, United States, Los Angeles
Shared Deals: 11
EG
North America, California, United States, San Francisco
Shared Deals: 38

What are some of recent deals done by Andreessen Horowitz?

Kaizen Labs

Venice, California, United States

Kaizen Labs is a software company that helps city administrators transform resident experiences with simple digital products.

Information TechnologyRecreationSoftware
Series AOct 30, 2025
Amount Raised: $21,000,000
Harvey

San Francisco, California, United States

Harvey provides AI-driven tools to assist legal professionals with research, document review, and contract analysis.

Artificial Intelligence (AI)Information TechnologyLegalLegal Tech
Series FOct 30, 2025
Amount Raised: $150,000,000
ZAR

Singapore, Central Region, Singapore

ZAR establishes a connection between cash-based economies and the web3 framework, facilitating adoption of stablecoins.

BlockchainCryptocurrencyWeb3
SeedOct 28, 2025
Amount Raised: $12,900,000
Whatnot

San Francisco, California, United States

Whatnot is a livestream shopping platform for buying and selling products.

CollectiblesE-CommerceInformation TechnologyMarketplaceTrading Platform
Series FOct 28, 2025
Amount Raised: $225,000,000

Keycard is working to redefine machine identity for the Internet.

SeedOct 21, 2025
Amount Raised: $8,000,000
knownwell

Needham, Massachusetts, United States

Knownwell is a plug-and-play platform designed to consolidate data from various sources.

Artificial Intelligence (AI)Health CareMedicalPrimary and Urgent Care
Series BOct 20, 2025
Amount Raised: $26,073,821

Generative video surveillance

Public SafetySoftware
Pre SeedOct 16, 2025
Amount Raised: $2,000,000
Counsel Health

San Francisco, California, United States

The modern front door to healthcare. AI meets real doctors for instant, personalized, and safe medical guidance—anytime, anywhere.

Artificial Intelligence (AI)Health CareMedicalPersonal Health
Series AOct 16, 2025
Amount Raised: $25,000,000
Deel

San Francisco, California, United States

Deel offers a unified platform that supports payroll, HR, compliance, and workforce management across global teams.

Bookkeeping and PayrollComplianceHuman ResourcesRecruiting
Series EOct 16, 2025
Amount Raised: $300,000,000
Reducto

San Francisco, California, United States

Reducto is an AI-driven API that specializes in converting unstructured documents like PDFs and images into structured data.

Artificial Intelligence (AI)Developer APIsDocument ManagementGenerative AI
Series BOct 14, 2025
Amount Raised: $75,000,000