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Andreessen Horowitz (a16z)

Activity from announced rounds

Activity in this selectionSeries B

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
18
Confirmed lead rounds
3
9 roles undisclosed
New companies
15
First participation on record · 3 follow-on
Funding in participating rounds
$2.9B
18 disclosed · full round size, not this investor’s share

By stage

Series B18

By primary sector

AI4
Fintech4
Cybersecurity1
Developer tools1
Ecommerce1
7 more
Enterprise software1
Hardware1
Healthtech1
Industrial tech1
Mobility1
Robotics1
Space tech1

By country

United States16
Colombia1
United Kingdom1

Rounds

18 in this selection
Town

Town is a personal AI assistant that works across email, calendars, documents and messaging to handle tasks in a user’s connected tools.

$108MSeries B
Participant
Arena

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

$200MSeries B
Participant
Vesta

A mortgage loan-origination system with AI agents that work on applications, underwriting and closing documents.

$30MSeries B
Participant
Stuut

AI software for finance teams that follows up on invoices, resolves payment disputes and matches incoming payments to receivables.

$52.5MSeries B
Participant
General Medicine

An online healthcare store where people compare care options and upfront prices, book visits and order medications or lab tests.

$120MSeries B
Lead
Armadin

Armadin develops AI agents that test attack paths across enterprise systems and show defenders how connected weaknesses could be exploited.

$255.5MSeries B
Lead
Adaptive

An AI project-accounting platform that helps construction companies keep job costs, billing, payables and forecasts current using field and financial data.

$30MSeries B
Participant
Gimlet Labs

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

$300MSeries B
Lead
Yuno

Yuno connects enterprise merchants, banks and wallets to payment providers, local payment methods and fraud tools through a single API.

$45MSeries B
Participant
Convex

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

$57MSeries B
Role not disclosed
Mariana Minerals

Builds and operates AI-driven mines and refineries for critical minerals

$310MSeries B
Role not disclosed
Senra Systems

Software-driven manufacturing company modernizing wire harness production

$65MSeries B
Role not disclosed
Fleek

Develops AI infrastructure for secondhand clothing industry

$25MSeries B
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
Mind Robotics

Builds full-stack AI-enabled industrial robotics platform to automate dexterous manufacturing tasks at scale

$400MSeries 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
Spade

Data and AI platform transforming how financial institutions use transaction data

$40MSeries B
Role not disclosed
Nexthop AI

Provides highly efficient AI networking solutions for hyperscale data centers

$500MSeries B
Role not disclosed