Twin Prime lands $10M pre-seed to build frontier AI models for defence and security

Frontier AI lab for defence and security Twin Prime has raised have $10 million in pre-seed funding led by Expeditions, with additional investment from American and European VCs, Theon, family offices, and angels from within Palantir, Anduril, Quorum, and more. 

Twin Prime is developing AI models that natively reason on data from a large number of sensor modalities in the physical world, notably across the national security landscape, compressing the perception-to-decision layer to enable smart, real-time action against threats. 

The company was founded in 2025 by George Lentzas, Stephane Sezer, Drew Calcagno, and Michael Leite-Garcia, a multinational team of researchers in frontier AI, quantitative finance, and national security. 

Collectively, they have extensive experience at top institutions, including Hudson River Trading, Google Research, Lawrence Livermore National Laboratory, Columbia University, the White House, the Pentagon, and various branches of both the US and European armed forces. 

Mikolaj Firlej, Co-founder and GP of Expeditions, said: 

“Current AI models are not specialised enough to capture the complexity of modern war and wider security challenges. They usually have limited applicability at the edge and often overlook sensor integration and critical data feeds. 

Twin Prime is developing models purpose-built for high-stakes environments where size, fusion and speed are critical.

At a time when most defence prime contractors struggle to integrate advanced AI models, the Twin Prime team presents a clear commercial value not just by retrofitting legacy systems, but by transforming their operations.”

Twin Prime and Theon, a large European defence prime, also intend to form a Joint Venture to develop, commercialise, and deploy bespoke AI solutions built upon Twin Prime's proprietary models.

The JV will augment Theon’s extensive deployment of sensors and other defence product offerings, particularly as a continuation of its Theon Next initiative.