Castelion
Torrance, US · Founded 2022 · Delaware corporation · 16 known investors
Find your way into Castelion
289 people in our graph share verified history with the Castelion team — schools, employers, funds. One of them is your warm intro.
Les Craigunlockedknows Bryon Hargis · together at The Johns Hopkins University Applied Physics Laboratory (overlapped)
×5knows the team · via SpaceX
×3knows the team · via Castelion
knows the team · via The Johns Hopkins University
×2knows the team · via Georgia Institute of Technology
Castelion develops advanced strike systems and defense hardware with a focus on rapid iteration and scalable manufacturing to reduce costs and development timelines for U.S. defense applications. The company aims to restore American industrial agility in weapons development and strengthen national security capabilities.
Founders & leadership
Castelion was founded in 2022 by Bryon Hargis, Sean Pitt, Andrew Kreitz, and Charles Bryon Hargis.
BH
Bryon HargisinCo-Founder & CEOBryon Hargis is co-founder and CEO of Castelion, which develops and manufactures advanced strike systems for U.S. defense applications.
SP
Sean PittinCo-Founder & COO
AK
Andrew KreitzinCo-Founder & CFO
CB
Charles Bryon HargisCo-founder
Board
AP
Investors · 16
7percent VenturesLondon · $250K – $2M
Andreessen HorowitzMenlo Park · $500K – $50M
Angel Collective Opportunity FundSan Francisco
Avenir Growth CapitalNew York
BlueYard CapitalBerlin · $500K – $5M
Cantos VenturesSan Francisco · $400K – $1.5M
Champion Hill Ventures$500K – $1M
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General CatalystSan Francisco · $30M
IceNineLondonvia Jeff Crusey · inferred
Lavrock VenturesWashington
Lightspeed Venture PartnersMenlo Park · $1.7M – $87M
NEW VISTA CAPITALWashington
SpaceVCAustin · $1M – $5Mvia Jonathan Lacoste · inferred
Sparq Capital (SFO)Palo Alto
First InreportedWashington · $500K – $2M
Silent VenturesreportedDallas · $1.5M – $3Mvia Jackson Moses · inferred
Reported raises · per SEC filings
Form D private placements$1.1B disclosed across 5 rounds · 2023–2026
▶$647MraisedAug 2026 · 17 investors · Other TechnologyRule 506(b)
▶$647MraisedAug 2026 · 17 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Charles Bryon HargisExecutive Officer, Director, Promoter
- Sean Tucker Orion PittExecutive Officer, Director, Promoter
- Andrew Jonathan KreitzExecutive Officer, Director, Promoter
- Alex PoulinDirector
- Offering amount
- $800M
- Amount sold
- $647M
- First sale
- Aug 2026
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
▶$60MraisedNov 2025 · 8 investors · Other TechnologyRule 506(b)
▶$60MraisedNov 2025 · 8 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Sean Tucker Orion PittExecutive Officer, Director, Promoter
- Andrew Jonathan KreitzExecutive Officer, Director, Promoter
- Alex PoulinDirector
- Charles Bryon HargisExecutive Officer, Director, Promoter
- Offering amount
- $60M
- Amount sold
- $60M
- First sale
- Nov 2024
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
▶$360MraisedNov 2025 · 30 investors · Other TechnologyRule 506(b)
▶$360MraisedNov 2025 · 30 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Charles Bryon HargisExecutive Officer, Director, Promoter
- Andrew Jonathan KreitzExecutive Officer, Director, Promoter
- Sean Tucker Orion PittExecutive Officer, Director, Promoter
- Alex PoulinDirector
- Offering amount
- $360M
- Amount sold
- $360M
- First sale
- Aug 2025
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
▶$8.6MraisedOct 2023 · 17 investors · Other TechnologyRule 506(b)
▶$8.6MraisedOct 2023 · 17 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Charles Bryon HargisExecutive Officer, Director, Promoter
- Andrew Jonathan KreitzExecutive Officer, Director, Promoter
- Sean Tucker Orion PittExecutive Officer, Director, Promoter
- Alex PoulinDirector
- Offering amount
- $8.6M
- Amount sold
- $8.6M
- First sale
- Sep 2023
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
▶$5.4MraisedApr 2023 · 20 investors · Other TechnologyRule 506(b)
▶$5.4MraisedApr 2023 · 20 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Sean Tucker Orion PittExecutive Officer, Director, Promoter
- Alex PoulinDirector
- Charles Bryon HargisExecutive Officer, Director, Promoter
- Andrew Jonathan KreitzExecutive Officer, Director, Promoter
- Offering amount
- $5.5M
- Amount sold
- $5.4M
- First sale
- Apr 2023
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Founder mafia
3 people who came through Castelion went on to found or lead other companies.
Competitors · 3
by search overlapLockheedmartin33 shared keywordsLockheed Martin is a global security and aerospace company that develops military aircraft, missile defense systems, helicopters, radar and sensor systems, spacecraft, and cybersecurity capabilities for the U.S. Department of Defense, federal government agencies, and international customers.
Capella Space31 shared keywordsCapella Space designs, builds, and operates synthetic aperture radar (SAR) satellite constellations that provide all-weather, day-and-night Earth observation imagery at sub-0.25m resolution. It offers an automated end-to-end tasking and data delivery platform serving defense and intelligence, maritime, disaster response, and infrastructure monitoring customers.
Breakingdefense24 shared keywordsBreaking Defense is a digital news organization covering defense strategy, politics, and military technology for defense sector decision-makers. It is owned by Breaking Media, a New York City-based business-to-business digital media company.
Companies competing with Castelion for the same Google search keywords, organic and paid, via search-intersection analysis.
Non-dilutive funding · 2 SBIR/STTR awards
Federal grants — no equity taken| Agency | Phase | Year | Amount |
|---|---|---|---|
| U.S. Air ForceAir Force | Phase II | 2023 | $1.8M |
| U.S. Air ForceAir Force | Phase II | 2023 | $1.7M |
Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.
In the news
Frequently asked questions
- What does Castelion do?
- Castelion develops advanced strike systems and defense hardware with a focus on rapid iteration and scalable manufacturing to reduce costs and development timelines for U.S. defense applications. The company aims to restore American industrial agility in weapons development and strengthen national security capabilities.
- Who founded Castelion?
- Castelion was founded by Bryon Hargis, Sean Pitt, Andrew Kreitz, Charles Bryon Hargis in 2022.
- Who are Castelion's investors?
- Castelion's investors include 7percent Ventures, Andreessen Horowitz, Angel Collective Opportunity Fund, Avenir Growth Capital, BlueYard Capital, Cantos Ventures, Champion Hill Ventures, General Catalyst and 8 more.
- How much funding has Castelion raised?
- Castelion has disclosed $1.1B raised across 5 rounds.
- Where is Castelion headquartered?
- Castelion is headquartered in Torrance, US.