Who are Castelion's decision-makers?
Castelion's leadership is anchored by Bryon Hargis, Co-founder & CEO, with operating and technical leaders supporting scale.
- CEO
- Bryon Hargis
- CTO/key exec
- Sean Pitt
- Founded
- 2022
- Employees
- Private; roughly 201-500 reported
- HQ
- Torrance, CA
- Notable
- Hypersonic strike systems
- Bryon HargisCo-founder & CEOFounder, since 2022Former SpaceX national-security executive leading Castelion.
- Sean PittCo-founderFounder, since 2022Former SpaceX engineer listed in company coverage.
- Manufacturing and test leadersOperations leadershipScaling functionDrive flight-test cadence and factory build-out.
Who leads Castelion?
The leadership block on this page lists the founders and key executives found in public sources. The most durable decision-maker signal is the founder/CEO plus the executive who owns engineering, product, operations, or growth.
Who actually makes buying decisions at Castelion?
Buying decisions likely involve the founder/CEO for strategic vendors, engineering or product leaders for technical tooling, operations leaders for deployment and manufacturing, and finance/security for enterprise controls. Defense and space companies also involve program, compliance, supply-chain, and customer mission stakeholders.
How is Castelion organized as it scales?
The organization likely separates core technology, customer/program delivery, operations, finance, people, and go-to-market. For hard-tech companies, manufacturing, test, safety, quality, and field operations become increasingly important as the company moves from prototype to production.
As of June 2026.Sources:Castelion aboutCastelion Series BAxios Blackbeard / Project Ranger
Castelion — frequently asked questions
