Andreessen Horowitz (a16z)

Activity from announced rounds

All recorded activity

Andreessen Horowitz invests in technology companies from seed through growth, with specialist teams in AI, enterprise software, infrastructure, fintech, crypto, healthcare and consumer technology.

The firm pairs investors with an operating platform spanning recruiting, marketing, legal matters and public policy. This structure gives a founder access to specialists for building a management team, reaching customers and navigating regulated markets alongside the investment relationship.

Its American Dynamism practice extends the mandate into areas such as defence and industrial technology. Founders should identify the relevant investing practice: a16z operates across several markets with different technical and commercial requirements.

Sources
Rounds participated in
114
Confirmed lead rounds
22
65 roles undisclosed
New companies
104
First participation on record · 10 follow-on
Funding in participating rounds
$56.4B
110 disclosed · full round size, not this investor’s share

By stage

Series C+35
Series A29
Series B18
Seed13
Undisclosed12
2 more
Pre-seed5
Growth2

By primary sector

AI31
Fintech17
Enterprise software10
Healthtech10
Defense tech7
13 more
Mobility6
Developer tools5
Climate tech4
Hardware4
Industrial tech4
Robotics4
Ecommerce3
Biotech2
Cybersecurity2
Space tech2
Media & gaming1
Proptech1
Travel tech1

By country

United States101
United Kingdom3
2
France2
Sweden2
4 more
Colombia1
Germany1
Saudi Arabia1
Turkey1

Rounds

114 in all activity
Chariot Defense

Chariot Defense develops power-distribution systems for military use.

$34MSeries A
Role not disclosed
Temporal

Temporal provides an open-source durable execution platform for long-running applications and AI agents.

$300MSeries D
Role not disclosed
Talkiatry

Provides in-network psychiatric care using AI-powered technology

$210MSeries D
Role not disclosed
Mistral AI

Mistral AI develops AI models and computing infrastructure for enterprise and public-sector use.

€1.2BStrategic
Role not disclosed
Smart Bricks

Builds AI infrastructure for global real-estate investing

$5MPre-Seed
Role not disclosed
Meridian

Builds AI-powered financial modeling tools for engineering teams

$17MSeed
Role not disclosed
ElevenLabs

Develops voice AI models and audio synthesis tools for enterprise and consumer applications

$500MSeries D
Role not disclosed
Third Arc Bio

Develops novel multifunctional antibodies for oncology and immunology & inflammation indications

$52MSeries A+
Role not disclosed
Kindred

Global home swapping platform for community-driven travel

$125MSeries C
Role not disclosed
Waymo

Waymo develops autonomous driving technology and operates a fully driverless ride-hailing service.

$16BInvestment round
Participant
Decagon

Provides conversational AI agents for concierge customer experiences

$250MSeries D
Role not disclosed
Concourse

Builds AI agents for corporate finance teams to automate manual operations

$12MSeries A
Role not disclosed
Standard Nuclear

Produces TRISO nuclear fuel for advanced nuclear reactors

$140MSeries A
Role not disclosed
Inferact

Develops infrastructure for running large language models.

$150MSeed
Role not disclosed
Stoïk

Stoïk combines cyber insurance with active cyber-risk prevention.

€20MSeries C
Role not disclosed
XBuild

Provides AI-powered estimating platform for construction contractors

$19MSeries A
Role not disclosed
TaleMonster Games

Develops casual mobile games with puzzle and strategy elements

$30MSeries A
Role not disclosed
Hadrian

Builds highly automated factories producing defense and aerospace systems

UndisclosedUndisclosed
Role not disclosed
Protege

Provides AI data platform unlocking access to trusted real-world data at scale

$30MSeries A
Role not disclosed
Arena

Arena evaluates AI models through comparisons and observations of how people use them in real tasks.

$150MSeries A
Role not disclosed
Wabi

Wabi develops a shared AI assistant that organizes tasks into conversations and creates personal apps for individuals and groups.

$20MPre-seed
Lead
Waymo

Waymo develops autonomous driving technology and operates a fully driverless ride-hailing service.

$5.6BSeries C
Participant
Waymo

Waymo develops autonomous driving technology and operates a fully driverless ride-hailing service.

$2.5BInvestment round
Participant
Waymo

Waymo develops autonomous driving technology and operates a fully driverless ride-hailing service.

$3.2BFirst external financing (cumulative closes)
Participant