Andreessen Horowitz logo

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
circle-line
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?

Periodic Labs

San Francisco, California, United States

Periodic Labs develops artificial intelligence systems that simulate and predict the properties of materials using machine learning.

Artificial Intelligence (AI)Generative AIMachine Learning
SeedSep 30, 2025
Amount Raised: $300,000,000
Eve

San Francisco, California, United States

Eve is a legal tech platform designed to assist plaintiff law firms at every phase of a legal case.

Artificial Intelligence (AI)LegalLegal Tech
Series BSep 30, 2025
Amount Raised: $103,000,000
Thyme Care

Nashville, Tennessee, United States

Thyme Care is a healthcare company that provides oncology care management services.

Health CareMedicalOncology
Series DSep 25, 2025
Amount Raised: $97,000,000
howie

S Central Washington Co, Maine, United States

howie is a new AI-powered assistant acts like a virtual executive assistant for busy professionals.

Artificial Intelligence (AI)
SeedSep 22, 2025
Amount Raised: $6,000,000
Vibranium Labs

Brooklyn, New York, United States

Vibranium Labs is an AI on-call engineer platform designed to resolve incidents with less stress.

Artificial Intelligence (AI)ConsultingSoftware
SeedSep 18, 2025
Amount Raised: $4,600,000
Airbuds Widget

San Francisco, California, United States

Airbuds Widget is a mobile app that allows friends to share their music listening activity in real-time through a widget.

Mobile AppsMusicSocial Network
SeedSep 17, 2025
Amount Raised: $5,000,000
Apex

Los Angeles, California, United States

Apex designs and manufactures satellite buses tailored for various space missions.

AerospaceCommercialManufacturing
Series DSep 12, 2025
Amount Raised: $200,000,000
TENEX.AI

Sarasota, Florida, United States

TENEX.AI is a cybersecurity company that utilizes AI and human expertise to help enterprises protect their digital assets.

Artificial Intelligence (AI)Cyber SecurityNetwork SecuritySaaS
Series ASep 11, 2025
Amount Raised: $27,000,000
Mistral AI

Paris, Ile-de-France, France

Mistral AI is an AI platform that provides large language models and AI services tailored to diverse enterprise applications.

Artificial Intelligence (AI)Generative AIMachine LearningNatural Language ProcessingOpen Source
Series CSep 9, 2025
Amount Raised: $1,990,266,426
Databricks

San Francisco, California, United States

Databricks is a data and AI platform that unifies data engineering, analytics, and machine learning on a lakehouse architecture.

AnalyticsArtificial Intelligence (AI)Information TechnologyMachine Learning
Series UnknownSep 8, 2025
Amount Raised: $1,000,000,000