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Andreessen Horowitz (a16z)

Activity from announced rounds

Activity in this selectionDeveloper tools

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
13
Confirmed lead rounds
3
9 roles undisclosed
New companies
12
First participation on record · 1 follow-on
Funding in participating rounds
$4.5B
12 disclosed · full round size, not this investor’s share

By stage

Series B5
Series C+5
Seed1
Series A1
Undisclosed1

By primary sector

AI6
Developer tools5
Hardware1
Space tech1

By country

United States11
1
France1

Rounds

13 in this selection
doxx.net

doxx.net provides private networking for people and AI agents, including direct file transfers, calls and messaging.

$38MSeries A
Lead
Temporal

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

$550MSeries E
Participant
Cognition

Cognition develops Devin, an autonomous software-engineering system, and the Windsurf AI code editor.

>$2BSeries E
Lead
Gimlet Labs

Provides a cloud inference platform and compiler that distribute AI workloads across different processor types.

$300MSeries B
Lead
Convex

Convex provides a reactive backend with database, functions, workflow, and storage.

$57MSeries B
Role not disclosed
Probably

Builds a data science tool that produces verified, citation-backed answers from complex datasets

$9MSeed
Role not disclosed
OpenRouter

Provides a unified API gateway enabling access, routing, and optimization across 400+ AI models for developers and enterprises

$113MSeries B
Role not disclosed
Cowboy Space Corporation

Develops vertically integrated orbital data centers and launch vehicles for AI compute in space

$275MSeries B
Role not disclosed
Replit

Provides AI-powered development platform for software creation and deployment

$400MSeries D
Role not disclosed
Nexthop AI

Provides highly efficient AI networking solutions for hyperscale data centers

$500MSeries B
Role not disclosed
Temporal

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

$300MSeries 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
ElevenLabs

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

$500MSeries D
Role not disclosed