Castelion: $350 Million Series B Closed To Advance U.S. Hypersonic Weapons Production
By Amit Chowdhry ● Yesterday at 5:00 PM
Castelion has raised $350 million in Series B financing to scale the domestic production of affordable hypersonic weapons, advancing one of the Pentagon’s highest modernization priorities. The Series B round was led by Altimeter Capital and Lightspeed Venture Partners, with additional participation from Lavrock Ventures, Andreessen Horowitz, General Catalyst, First In, Space VC, Cantos, BlueYard, Avenir, Champion Hill, and Interlagos.