DefenseSeries B
HQ
El Segundo, CA
Founded
2022
Employees
51-200
Total Raised
$479.6M
Last Round
Series B
Last Round Date
Aug 2025
Founders
Andrew Kreitz, Sean Pitt, Bryon Hargis
Castelion is a defense company based in El Segundo, CA, founded 2022. The company is at the Series B stage, having raised $479.6M, with 51-200 employees.