C
Castelion
Scalable, low-cost hypersonic strike missile systems.
About Castelion
Castelion is a Torrance, California defence-tech company founded in 2022 by former SpaceX executives Bryon Hargis (CEO), Sean Pitt (COO) and Andrew Kreitz (CFO) to apply commercial aerospace speed and vertical integration to affordable, high-rate hypersonic and long-range strike weapons for the U.S. Department of Defense and allies. Its flagship Blackbeard hypersonic strike missile—compatible with HIMARS and MLRS launchers—moved from concept to a Pentagon program of record in under four years with fielding targeted for 2027; the company cites more than $500 million in U.S. military contracts and a framework to produce at least 500 missiles per year, plus a 1,000-acre New Mexico manufacturing campus known as Project Ranger. Backed by Andreessen Horowitz, Lightspeed Venture Partners and Carlyle among others, Castelion closed a $1 billion Series C at a $13 billion valuation to scale Blackbeard production and manufacturing capacity. Sources: company press / Dealroom coverage; castelion.com.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2022
- Headquarters
- Torrance, United States
- Employees
- 174
- Open positions
- 101
- Dealroom signal
- 95.8/100
- Industry
- Security
- Sector
- Defence, Military, Weapons, Aviation and Aerospace, Space Tech, Rumoured $1B, Hypersonic Flight, Space Upstream, Dual-Use Tech
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES BOther financing | Dec 2025 | $350M | $1.4B | General Catalyst · BlueYard Capital · Lavrock Ventures · First In Capital | ↗ |
| DEBTDebt | Jan 2025 | $30M | — | Silicon Valley Bank | ↗ |
Growth signals
Latest recorded traffic for Castelion is 25K monthly website visits, up 78.6% over the last three months. Castelion's team grew 30.8% over the past year.
Open positions
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed2 investors entered at this stage
US Department of War
Small Business Innovation Research
Series A13 investors entered at this stage
Andreessen Horowitz
Lavrock Ventures
First In Capital
BlueYard Capital
Champion Hill Ventures
Lightspeed Venture Partners
Interpagos
Cantos Ventures
Interlagos Capital
Altimeter Capital
General Catalyst
Space VC
Avenir
Series B and later1 investor entered at this stage
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about Castelion on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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