general

Shield AI raises $1.5 billion at $12.7 billion valuation after U.S. Air Force deal

Defense startup Shield AI closed a $1.5 billion Series G at a $12.7 billion valuation, sold $500 million in preferred shares, and will acquire flight simulator maker Aechelon Technology following selection by the U.S. Air Force.

Mar 26th 2026 · United States

Insights

  • Shield AI raised $1.5 billion in Series G financing at a $12.7 billion post-money valuation.
  • The company sold $500 million of preferred shares to Blackstone funds and secured a $250 million drawdown loan.
  • Proceeds will fund the acquisition of Aechelon Technology, a maker of flight simulation systems for U.S. military pilots.
  • Shield's valuation rose 140% since March 2025 after its Hivemind autonomy software was selected for the U.S. Air Force Collaborative Combat Aircraft program.
  • Hivemind will operate alongside competitor Anduril's systems on the Air Force prototype, reflecting the service's preference for multiple vendors.