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Castelion
Castelion Corp is a California-based startup specializing in hypersonic missile technology and defense systems. The company has explored expansion opportunities into regions like Tucson, Arizona.
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Castelion at a glance
Castelion is a defense company headquartered in United States. Its most recent funding round, Series C, raised $1B in August 2026. Xcout tracks 10 named people at Castelion, including Charles Bryon Hargis (CEO).
Castelion leadership
- Charles Bryon HargisCEO
- Bryon HargisCo-Founder and CEO
- Andrew Kreitzco-founder
- Sean Pittco-founder
- Andrew Jonathan KreitzExecutive Officer
- Charles Bryon HargisExecutive Officer
4 more named people on record for Castelion, with roles, board committees and tenure — see the full roster →
Castelion funding rounds
The 2 most recent:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Series C | $1B | 9 named | |
| Series B | $350M | — |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Recent Castelion news
Investors
Castelion competitors
A few of Castelion's closest competitors — see the full list of competitors and alternatives →
Aeon Industrial combines autonomous software with modern manufacturing techniques to build affordable precision weapon systems.
Applied Energetics, Inc., based in Tucson, Arizona, specializes in developing and producing cutting-edge photonic solutions. Their offerings include advanced lasers, sophisticated optical systems, electronics, and integrated guided energy systems, which they supply to defense, aerospace, industrial, and scientific customers worldwide. A primary focus for the company is innovating optical sources that boast impressive output energy, peak power, and frequency agility. To protect these innovations, Applied Energetics is actively expanding its intellectual property holdings, particularly for technologies designed to enhance threat disruption capabilities. These solutions serve the Department of Defense, the intelligence community, and various applications in commercial, medical, space, and national intelligence fields, utilizing optical sources that cover the entire electromagnetic spectrum from deep ultraviolet to far infrared. The company possesses substantial intellectual property rights related to its laser-guided energy technology and associated solutions, protected by 26 granted patents and an additional 11 government-sensitive patent applications.
Bravo Ordnance is an Austin, Texas-based defense and space manufacturing company that designs, prototypes, and manufactures custom warheads and explosives for autonomous defense systems. The company utilizes additive and advanced manufacturing to develop products such as transport-safe binary explosives and custom 3D-printed warheads for defense contractors, aerospace innovators, and national security agencies.
Epirus, Inc. is a high-growth technology company headquartered in Torrance, California. The company specializes in developing directed energy systems and power management solutions, including its flagship Leonidas high-power microwave system.
Singularity Defense Corp. is a defense technology company founded in 2023 with headquarters located in El Segundo, California.
Neros is a defense technology company that builds asymmetric systems to ensure the West's strategic edge. Its corporate office and headquarters are based in El Segundo, California, within Los Angeles' aerospace corridor.
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More on Castelion in Xcout Intel
- 10 named people with titles, LinkedIn and board committees
- 6 funding rounds with the investors in each, and who they co-invest with
- 3 corporate events with sources — deals, leadership changes, layoffs
- The full competitor set, tracking, exports and API access