Firestorm Labs raises USD 82M Series B at USD 617.13M post-money valuation
Firestorm Labs completed an USD 82 million Series B led by Washington Harbour Partners; company-submitted certificate data places the financing at a USD 617.13 million post-money valuation.

Evidence notes
- Washington Harbour Partners led the financing, with NEA, Ondas, In-Q-Tel, Lockheed Martin Ventures, Booz Allen Ventures, Geodesic Capital and Motley Fool Ventures participating.
- Firestorm said the capital will support scaled production and expanded fielding after demonstrations for the U.S. Air Force and U.S. Army.
- The Series B brought Firestorm's reported cumulative funding to USD 153 million.
Company context
Firestorm Labs develops modular uncrewed aircraft and expeditionary manufacturing cells that can produce airframes near the point of need. Its xCell production system combines additive manufacturing, digital designs and mission-adaptable payload integration for Group 1–3 aircraft including the Tempest and Squall. Founded in San Diego in 2022, the company raised a $47 million Series A in 2025 to expand factories, aircraft development and deployable production.