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Andreessen Horowitz (a16z)

Activity from announced rounds

Activity in this selectionMay 31, 2026 · May 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
14
Confirmed lead rounds
1
13 roles undisclosed
New companies
13
First participation on record · 1 follow-on
Funding in participating rounds
$7.6B
14 disclosed · full round size, not this investor’s share

By stage

Seed4
Series C+4
Series A3
Series B3

By primary sector

AI5
Fintech3
Enterprise software2
Space tech2
Defense tech1
1 more
Robotics1

By country

United States10
Sweden2
Saudi Arabia1
United Kingdom1

Rounds

14 in this selection
OpenRouter

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

$113MSeries B
Role not disclosed
Mercury

Provides banking and financial operating system for startups and businesses

$200MSeries D
Role not disclosed
Stilta

Automates research and analytical work behind intellectual property cases

$10.5MSeed
Role not disclosed
Stitch

API-first platform for banks and fintechs to build lending, cards, payments, and wallet products

$25MSeries A
Role not disclosed
Anduril Industries

Anduril Industries builds autonomous defense systems and Lattice software connecting sensors, platforms and military command workflows.

$5BSeries H
Lead
Mind Robotics

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

$400MSeries B
Role not disclosed
Ciridae

Builds AI operating systems for mid-market businesses in logistics, restoration, and industrial services

$20MSeed
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
Pit

AI platform that learns business workflows and builds custom internal tools for enterprise operations

$16MSeed
Role not disclosed
Kalshi

Offers prediction markets on real-world events

$1BSeries F
Role not disclosed
District

AI commerce platform helping creators and brands build custom online storefronts without coding

$14.7MSeed
Role not disclosed
Ethos

Ethos connects specialists with consulting and full-time opportunities at AI labs, investment firms and corporate teams.

$22.8MSeries A
Role not disclosed
Astranis

Builds and operates small GEO satellites for commercial and government communications

$450MSeries E
Role not disclosed
Tessera Labs

Vendor-agnostic multi-agent AI platform that modernizes enterprise ERP systems

$60MSeries A
Role not disclosed