Defense-tech startup Shield AI has raised $1.5 billion in Series G funding at a $12.7 billion post-money valuation, a 140% jump from the $5.3 billion valuation it carried after a $240 million raise in March 2025. Advent International led the round, co-led by the Strategic Investment Group of JPMorganChase's Security and Resiliency Initiative, with participation from existing investors Snowpoint Ventures, InnovationX, Riot Ventures, Disruptive and Apandion.
A separate $500 million from Blackstone
Alongside the equity round, funds managed by Blackstone are investing $500 million in fixed-return preferred equity financing, plus committing an additional $250 million delayed-draw credit facility to support future growth. Combined with the Series G, the total capital package announced in March runs to $2 billion.
What the money buys: Aechelon
The raise is funding Shield AI's acquisition of Aechelon Technology, a maker of high-fidelity flight-simulation software used to train U.S. military pilots — Aechelon's systems generate synthetic aerial footage that simulates a pilot's field of view and can incorporate weather, radar and infrared data. Shield AI completed the acquisition in June, folding the simulation technology into Hivemind, its AI autopilot software, which has already flown 26 classes of vehicles including F-16s, jet-powered drones, helicopters, drone boats and ground vehicles. The pairing lets Shield AI train and test Hivemind against synthetic environments before it flies real hardware.
Why investors are paying up
The valuation jump follows Shield AI's selection as a software provider for the U.S. Air Force's Collaborative Combat Aircraft program, working alongside Anduril's Fury fighter jet drone. It's the latest sign that AI infrastructure capital keeps concentrating in the same few names — a dynamic that isn't limited to chatmodel makers. Just a day before this raise was first reported, AMD signed its own multibillion-dollar compute deal with Anthropic, underscoring how much money is now chasing the physical and defense-facing side of AI, not just the models themselves.
The defense-tech funding run continued in August, when Hadrian raised a $1.37 billion Series D at a $7.87 billion valuation.
Source: TechCrunch, Shield AI
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