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Castelion: Building the Arsenal of Democracy 2.0
A defense tech startup scaling military systems with startup velocity.
In an era of renewed great power competition, speed is the ultimate weapon. Castelion is betting that the U.S. defense industrial base needs a radical upgrade—and they are building the infrastructure to deliver it. They don't just build hardware; they are building a scalable machine for deterrence.
"They aren't just disrupting the defense supply chain; they are bypassing it entirely with vertical integration."
The Mission: Speed Over Bureaucracy
Traditional defense contracting moves at the speed of paperwork. Castelion moves at the speed of software. By designing, testing, and manufacturing next-generation systems in-house, they collapse timelines that typically span decades into months. This is a direct response to the 'Valley of Death' that kills most dual-use hardware startups.
Traction & Financials
With $51.5M in revenue and a team of just 136 employees, Castelion is demonstrating exceptional capital efficiency. The ratio of revenue per employee (approx $378k) is impressive for a hardware-heavy defense startup, suggesting they have successfully scaled manufacturing processes or are commanding high margins on specialized systems.
The traffic data reveals a fascinating signal about their market position. Despite being a B2G (Business-to-Government) player, nearly half their traffic (48%) is direct. This indicates strong brand recall among a niche, high-value audience—likely military personnel, defense contractors, and policy analysts who type 'castelion.com' directly into their browser. It’s not a vanity metric; it’s a sign of relevance in the circles that matter.
- Vertical Integration: Controlling the stack from design to manufacturing reduces reliance on fragile supply chains.
- Dual-Use Technology: Capabilities likely applicable to both national defense and commercial space sectors.
- Elite Leadership: Founded by Bryon Hargis, Andrew Kreitz, and Sean Pitt—veterans with deep industry experience.
The Verdict: A Serious Contender
Castelion is positioned to be a foundational pillar of the modern defense ecosystem.
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Home - Castelion
Castelion designs, tests, and manufactures next-generation military systems rapidly and at massive scale to deter future wars.
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About castelion.com
Castelion designs, tests, and manufactures next-generation military systems rapidly and at massive scale to deter future wars.
Company Overview
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Technology Stack
castelion.com uses 14 technologies across their website including reCAPTCHA, PHP, WordPress, and more.
Security
reCAPTCHA
Programming Languages
PHP
CMS
WordPress
CDN
jsDelivr
Analytics & Marketing
Google Analytics
Performance
Lazy Loading, Priority Hints
Traffic & Audience
castelion.com receives approximately 15.4K monthly visitors and ranks #1,619,685 globally. The website has a bounce rate of 57% with visitors viewing an average of 1.8 pages per visit. Users spend an average of 1:24 on the site.
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