Andreessen Horowitz

Andreessen Horowitz, known as a16z, is a Silicon Valley venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz. The firm manages over $42 billion across venture, growth, crypto, and infrastructure funds. a16z has become the most active VC in AI, with investments spanning foundation models (Mistral AI, xAI), enterprise AI, robotics (Figure AI), and developer tools (Replit). The firm differentiates through its massive operational team providing portfolio companies with recruiting, marketing, and go-to-market support. a16z also runs one of the most influential tech media operations through its blog and podcast network.

VC

AI Deals

44

Portfolio Companies

32

Lead Rounds

30

AI Portfolio Companies

Foundation Models & AGI

1 round(s) · Lead investor

AI Infrastructure

1 round(s) · Lead investor

1 round(s) · Lead investor

AI Infrastructure

1 round(s) · Lead investor

1 round(s) · Lead investor

1 round(s) · Participant

1 round(s) · Participant

1 round(s) · Participant

2 round(s) · Lead investor

Anduril Industries

2 round(s) · Lead investor

1 round(s) · Lead investor

1 round(s) · Lead investor

1 round(s) · Lead investor

1 round(s) · Lead investor

2 round(s) · Lead investor

1 round(s) · Lead investor

Arc Boat Company

1 round(s) · Participant

AI Developer Tools

5 round(s) · Lead investor

AI Developer Tools

1 round(s) · Lead investor

1 round(s) · Participant

1 round(s) · Lead investor

2 round(s) · Lead investor

AI Developer Tools

2 round(s) · Lead investor

Foundation Models & AGI

2 round(s) · Lead investor

2 round(s) · Lead investor

AI Infrastructure

1 round(s) · Participant

Foundation Models & AGI

1 round(s) · Participant

2 round(s) · Lead investor

Thinking Machines Lab

Foundation Models & AGI

1 round(s) · Lead investor

1 round(s) · Lead investor

Foundation Models & AGI

1 round(s) · Participant

1 round(s) · Lead investor

Investment Activity

Seed

Lead

Jun 26, 2026

$200M

Series A

Lead

Jun 25, 2026

$15M

Series A

Lead

Jun 23, 2026

$30M

Undisclosed

Lead

Jun 16, 2026

$9M

Undisclosed

Lead

Jun 4, 2026

$35M

Undisclosed

May 21, 2026

$60M

Undisclosed

May 21, 2026

$300M

Series D

May 20, 2026

$200M

Undisclosed

May 14, 2026

$400M

Anduril Industries

Undisclosed

Lead

May 13, 2026

$5.0B

Undisclosed

Lead

May 8, 2026

$60M

Seed

Lead

May 7, 2026

$16M

Undisclosed

Lead

May 6, 2026

$23M

Seed

Lead

Apr 14, 2026

$20M

Undisclosed

Apr 1, 2026

$1.8B

Series A

Lead

Mar 25, 2026

$35M

Arc Boat Company

Undisclosed

Mar 20, 2026

$50M

Undisclosed

Lead

Mar 12, 2026

$500M

Undisclosed

Mar 11, 2026

$400M

Series B

Lead

Mar 10, 2026

$125M

Series A

Mar 9, 2026

$12M

Series A

Lead

Mar 5, 2026

$30M

Series C

Lead

Jan 28, 2026

$180M

Series B

Jan 15, 2026

$900M

Series B

Jan 10, 2026

$640M

Series C

Lead

Jan 5, 2026

$200M

Series B

Lead

Dec 15, 2025

$130M

Series J

Dec 10, 2025

$10.0B

Series C

Nov 15, 2025

$6.0B

Anduril Industries

Series F

Oct 20, 2025

$1.5B

Series E

Lead

Jul 15, 2025

$1.0B

Thinking Machines Lab

Seed

Lead

Jul 15, 2025

$2.0B

Series A

Lead

Aug 22, 2024

$60M

Series A

Lead

Jul 20, 2024

$30M

Series B

Lead

Jul 19, 2024

$175M

Series B

Lead

Jun 20, 2024

$80M

Series A

Lead

Jun 10, 2024

$112M

Series D

Lead

May 1, 2024

$300M

Series A

Lead

Jan 1, 2024

$18M

Series C Extension

Apr 15, 2023

$300M

Series A

Lead

Mar 15, 2023

$150M

Series B

Lead

Apr 25, 2022

$80M

Series A

Lead

Feb 1, 2021

$20M

Seed

Lead

Apr 1, 2018

$5M

Frequently Asked Questions

How many AI deals has Andreessen Horowitz made?: Andreessen Horowitz has participated in 44 AI funding rounds tracked in our database, leading 30 of them.
What AI companies has Andreessen Horowitz invested in?: Andreessen Horowitz's AI portfolio includes Mirendil, Netris, Prosper AI, Probably, Lassie, and 27 more.
What AI sectors does Andreessen Horowitz focus on?: Andreessen Horowitz invests across AI sectors including Foundation Models & AGI, AI Infrastructure, AI Healthcare, Enterprise AI, and 8 more.
What type of investor is Andreessen Horowitz?: Andreessen Horowitz is classified as a vc investor. Andreessen Horowitz, known as a16z, is a Silicon Valley venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz. The firm manages over $42 billion across venture, growth, crypto, and infrastructure funds. a16z has become the most active VC in AI, with investments spanning foundation models (Mistral AI, xAI), enterprise AI, robotics (Figure AI), and developer tools (Replit). The firm differentiates through its massive operational team providing portfolio companies with recruiting, marketing, and go-to-market support. a16z also runs one of the most influential tech media operations through its blog and podcast network.

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