Sunday, November 8, 2026
TGOs

The business of defense

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Company

Castelion Corporation

Castelion designs, tests and manufactures hypersonic strike weapons and other military systems for the U.S. government. ↗

HeadquartersTorrance, CA ↗
FoundersSean Pitt, Co-Founder & COO ↗; Andrew Kreitz, Co-Founder & CFO ↗
LeadershipBryon Hargis, Co-Founder & CEO ↗
Department of War obligations$261 million in prime contracts since fiscal 2022 ↗
OwnershipPrivate; $1B Series C ↗; Lightspeed Venture Partners (Series A lead) ↗

Products

  • Blackbeard is Castelion's first low-cost, mass-producible hypersonic strike missile. ↗
  • Castelion makes its own solid rocket motors, developed in-house after it found a lack of cost-effective, rapidly produced motors in the United States. ↗
  • Castelion builds its own flight computer in-house, with real-time capability, hardware-enforced isolation and real-time cryptographic acceleration. ↗

Customers

  • The U.S. Navy ordered 50 Blackbeard early operational capability pre-production prototypes in June 2026 in a $23.4 million firm-fixed-price order. ↗
  • In August 2026 the U.S. Navy awarded Castelion an $89,997,162 firm-fixed-price order to advance Blackbeard to Early Operational Capability. ↗
  • In September 2026 the U.S. Navy placed a production delivery order for an initial lot of Blackbeard weapons, valued at up to $200 million. ↗
  • The Air Force Research Laboratory selected Castelion for a Direct-to-Phase 2 SBIR in May 2023, its first contract. ↗
  • AFWERX selected Castelion for its STRATFI program in March 2025. ↗