Air Street Capital Fund III

Air Street Capital

cb Email

Status

ACTIVE

Global HQ

London, United Kingdom

Countries of investment

United States
Canada
United Kingdom
Germany
France
Switzerland
Israel

Investment stages

Seed
Series A
Growth

Industries

Artificial intelligence
AI infrastructure
Developer tools
Techbio
Drug discovery
Robotics
Autonomous vehicles
Defense tech
Generative media

About
Air Street Capital is a London-based venture capital firm focused on AI-first companies. Their focus spans AI software, infrastructure, techbio, robotics and defense across the United States, Canada, the United Kingdom, Germany, France, Switzerland and Israel. The firm supports founders from seed through growth stages.

Min check size: $500K
Max check size: $15M
Fund size: Unlock
NPS: Unlock

Investment Thesis

Air Street Capital is a seed to growth stage firm investing exclusively in AI-first companies across software, science, the physical world and defense. The firm differentiates itself as the largest solo GP venture firm in Europe, led by State of AI Report author Nathan Benaich, with a portfolio including Synthesia, Black Forest Labs and Wayve.

Lead investor: Unlock
Co Invest: Unlock
Number of exits: Unlock
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Manager's Experience

Founded in 2019 in London by Nathan Benaich, who holds a PhD in computational cancer biology from the University of Cambridge and publishes the annual State of AI Report. Operates as a solo GP firm and closed a $232M Fund III in March 2026, following a $121M Fund II and $17M Fund I, bringing AUM to around $400M. LPs have included Daniel Ek and Jeff Dean. Portfolio includes Synthesia, Black Forest Labs, Wayve, Poolside and ElevenLabs, with exits including Graphcore to SoftBank and Adept to Amazon.