Shield AI Raises $2.25B at $12.7B to Buy Simulation Firm

March 28, 2026

Shield AI Raises $2.25B at $12.7B to Buy Simulation Firm

Published: March 28, 2026 at 12:38 AM

Updated: March 28, 2026 at 12:38 AM

100-word summary

Defense AI startup Shield AI closed a $1.5 billion Series G led by Advent International, plus $500 million in preferred equity from Blackstone and a $250 million credit line, hitting a $12.7 billion valuation. The capital funds its acquisition of Aechelon, a simulation software company that helps test autonomous aircraft in virtual environments before they fly real missions. Shield AI makes Hivemind, the AI pilot software that flew autonomously in Ukraine and now powers the Pentagon's drone programs. By swallowing Aechelon, it controls both the brain and the training ground for autonomous warfighters. JPMorgan Chase co-led the equity round, signaling Wall Street sees military AI as a growth bet, not...

What happened

Defense AI startup Shield AI closed a $1.5 billion Series G led by Advent International, plus $500 million in preferred equity from Blackstone and a $250 million credit line, hitting a $12.7 billion valuation. The capital funds its acquisition of Aechelon, a simulation software company that helps test autonomous aircraft in virtual environments before they fly real missions. Shield AI makes Hivemind, the AI pilot software that flew autonomously in Ukraine and now powers the Pentagon's drone programs. By swallowing Aechelon, it controls both the brain and the training ground for autonomous warfighters.

Why it matters

JPMorgan Chase co-led the equity round, signaling Wall Street sees military AI as a growth bet, not just a patriotic one.

Sources