Company
CASTELION
Castelion designs, tests, and manufactures next-generation military systems rapidly and at massive scale to deter future wars.
Also known as Castelion Corp, Castelion Corporation
- Status
- Operatingas of 2026-09-17
- Business model
- Government
- Headquarters
- Torrance, CA, United States
- Customers
- U.S. Army, Navy, and Air Force
- Legal name
- Castelion Corporation
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Record updated 17 September 2026
About
Castelion delivers the capabilities America needs to preserve peace through credible, non-nuclear deterrence. We build at the scale national security demands – optimizing every system for cost, manufacturability, and rapid deployment.
Funding snapshot
- Total raised
- $1.1BSum of rounds, as of 2026-09-17Source (opens in a new tab)
- Latest round
- Series C, $1B2026-08-19
Funding rounds
- Series C
- $1B2026-08-19, Company stated
- Round, 2026
- $647M2026-08-13, SEC form D sold, 17 investors
- Round, 2025
- $360M2025-08-08, SEC form D sold, 30 investors
- Series A
- $70M2025-01, Company stated
- Round, 2024
- $60M2024-11-04, SEC form D sold, 8 investors
- Pre seed
- $14.2M2023-10, Company stated
- Round, 2023
- $8.6M2023-09-18, SEC form D sold, 17 investors
- Round, 2023
- $5.4M2023-04-06, SEC form D sold, 20 investors
Products
- Hardware
- Blackbeard Hypersonic Weapons
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