BLACKBEARD
Hypersonic Strike at Scale
Delivering affordable, scalable hypersonic strike capability for U.S. forces and allied partners.
Multi-Platform Flexibility
One weapon. Multiple launch platforms. Compatible with air, ground, and containerized launch systems.
Affordable by Design
Less than $500K per round, making hypersonic strike economically scalable.
Built for Mass Production
Designed for production at thousands of rounds annually to meet the demands of modern warfare.
See our newest hypersonic manufacturing facility:
Project Ranger.
Affordable Hypersonic Weapons, Built Fast
At Castelion, speed and cost aren’t tradeoffs – they’re requirements. We vertically integrate core technologies to move faster, reduce risk, and control cost at scale. Every system is designed for manufacturability from day one, enabling rapid iteration and high-volume production.
Proud Partner of our Armed Forces
Our contracts are commitments to help America out-innovate and out-produce its rivals. We developed Blackbeard with hundreds of millions of dollars in private investment, in partnership with the U.S. Navy, U.S. Army, and U.S. Air Force, to move rapidly from prototype to production.
Hardware Rich
Rapid Testing
Iterative Design
America Needs You!
Get your hands on real hardware and tackle hard, critical challenges for our national defense.
Featured Positions
Choose your next adventure with Castelion.
Protecting Yourself from Recruitment Scams
Castelion will never contact candidates from Gmail or other personal email accounts, all official communication will come from the @castelion.com domain, and candidates should verify they are speaking with a real Castelion representative.
Castelion News
U.S. Navy Awards Castelion $90M to Advance Blackbeard to Early Operational Capability
Castelion has been awarded an $89,997,162 firm-fixed-price order from the U.S. Navy to advance Blackbeard hypersonic strike weapon to Early Operational Capability (EOC). The award is building on Castelion’s prior work regarding “Low Cost Highly Manufacturable Long Range Strike Weapon Production.”
Castelion Raises $1B Series C to Scale Production of Low-Cost Hypersonic Weapons
Castelion, a cutting-edge defense technology company working to restore America’s conventional deterrence capability, today announced a $1 billion Series-C fundraise. This financing will accelerate the scaled production of Blackbeard, Castelion’s first low-cost, mass-producible hypersonic strike missile, while expanding the company’s product portfolio to longer-range strike weapons and defensive systems.
U.S. Navy Awards Castelion First Delivery Order for Blackbeard Hypersonic Weapon
Castelion has been awarded a $23.4M firm-fixed-price order from the U.S. Navy for the production and delivery of 50 Blackbeard early operational capability pre-production prototypes and 50 associated storage and shipping containers. Award marks first delivery of low-cost hypersonic strike weapons to the Navy