Air Street Capital

Venture Capital·London, UK·~$138M across two funds; Fund I $17M (2020); Fund II $121M (2023)

Founded in 2019 by Nathan Benaich (PhD, Cambridge), Air Street Capital is a specialist AI focused venture fund operating a solo-GP model. Benaich co-authors the widely read annual 'State of AI Report', positioning the fund as a thought leader in the space. Fund II ($121M, 2023) was anchored by Spotify founder Daniel Ek and Google DeepMind's Jeff Dean. The portfolio of 47 companies includes 8 unicorns such as Wayve, Synthesia, and Adept (acquired by Amazon). Other notable investments include Profluent (programmable biology), V7 (AI data engine), and Black Forest Labs. Check sizes range from $100K to $5M at pre-seed and seed.

Focus Areas

AI InfrastructureDefenceRoboticsDrug DiscoveryFintechGaming

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Portfolio

1 company in our directory

Delian

Hiring

Defence Tech·Series A

Delian Alliance Industries is a Greek and UK-based defence technology company building autonomous systems for NATO and allied forces. Founded by former Apple robotics engineer Dimitrios Kottas, the company takes a vertically integrated approach, developing hardware, sensor fusion, autonomy software, and strike platforms under one roof. Its products include the Lambda Autonomous Surveillance Tower (LAST), which uses video and thermal feeds to detect and track surface targets without GPS, and a pipeline of concealed sea drones. Originally launched as Lambda Automata, the company rebranded and has deployed solar-powered surveillance towers along Greek borders for security and wildfire detection. Delian is headquartered in London with offices in Athens and is positioning itself as a European defence prime for the autonomous warfare era.