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Andreessen Horowitz (a16z)

Activity from announced rounds

Activity in this selectionJan 31, 2026 · Jan 1, 2026

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
10
Confirmed lead rounds
—
10 roles undisclosed
New companies
10
First participation on record · 0 follow-on
Funding in participating rounds
$804.5M
9 disclosed · full round size, not this investor’s share

By stage

Series A6
Series C+2
Seed1
Undisclosed1

By primary sector

AI4
Climate tech1
Enterprise software1
Fintech1
Industrial tech1
2 more
Media & gaming1
Proptech1

By country

United States8
France1
Turkey1

Rounds

10 in this selection
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