Inside a growing facility in El Segundo, a small team is making an improbable pitch: What if you could manufacture advanced composite structures for fighter jets in hours instead of weeks?
Hybron, a startup that until recently operated under the name BladeX Technologies, claims it has cracked a problem that has bedeviled aerospace manufacturers for decades. The company says its process produces flight-grade composite parts between 10 and 100 times faster than conventional methods—maintaining what it describes as three times the strength-to-weight ratio of titanium while doing so.
It's the sort of assertion that typically invites skepticism in an industry where certification cycles stretch across years and failure modes can be catastrophic. But according to Forbes, Hybron says it has something most early-stage manufacturers don't: more than $100 million in binding pre-orders, though this figure has not been independently verified.
That's a remarkable figure for a company that lists 17 employees on LinkedIn and, according to event materials, raised a $4 million seed round, only recently beginning to scale its production footprint. Yet if the manufacturing claims prove out—and that remains a significant if—the order book might actually be conservative. Defense contractors are scrambling to rebuild munitions stockpiles and retool supply chains after years of constrained production capacity. Speed matters now in ways it hasn't since the Cold War.
From Lab Claims to Hot-Fired Engines
The founders, Brennan Lieu and Aaron Guo, have been moving quickly. According to materials from a hardware-focused meetup in Los Angeles earlier this year, Hybron recently tested what it describes as composite compressor blades in a hot-fired fighter jet engine. Aaron Guo was recognized on Forbes' 30 Under 30 list for 2026 in Transportation & Aerospace, though the company has kept many operational details closely held.
The company has described itself as an "approved supplier" to major aerospace primes, though no customer names have been disclosed publicly and this claim remains self-reported. That's typical for defense work, where contract details often remain under wraps until production ramps or programs go public.
What Hybron is targeting—composite components for jet engines, munitions systems, and unmanned platforms—represents some of the most demanding applications in aerospace. Traditional composite manufacturing is painfully slow by nature. Layup processes, autoclave curing cycles, and the meticulous quality control required for flight hardware can stretch production timelines to weeks per part, sometimes longer. A validated process that delivers 100x faster throughput would fundamentally alter the economics of composite-intensive platforms.
The company's recent activity suggests it's preparing for volume production. Social media posts have referenced composite artillery shells and ongoing discussions around NATO supply chain integration, though specifics remain vague. Facility expansion appears to be underway, with new hires and buildout activity visible through the early months of this year.
A Moment for Defense Manufacturing
Hybron's trajectory intersects with a broader wave of capital and attention flowing into defense manufacturing startups. Venture investors have become noticeably more aggressive in the sector over the past two years, with seed-stage valuations in defense technology climbing toward $17 million by mid-2025, according to PitchBook data.
Firms like Marque Ventures—which has backed early-stage defense and deep-tech companies including Mach Industries and Firestorm Labs—have been active participants in the ecosystem, though Marque's portfolio page does not currently list Hybron among its investments.
Unconfirmed reports circulating in startup circles suggest Hybron may be raising a $20 million round, with some sources pointing to more than $120 million in binding orders. Neither figure has been independently verified through regulatory filings or official announcements. A late-March post from Stanford Angels & Entrepreneurs SoCal referenced the fundraising activity, but the details remain unverified.
For a company this early, those numbers would be extraordinary. They would also raise the stakes considerably.
The Certification Gauntlet
Manufacturing speed is one thing. Certification is another entirely.
Composite structures for fighter jet engines operate in brutal environments—thermal extremes, mechanical stresses, and vibrational loads that would destroy lesser materials. Getting approved for production typically involves years of testing, validation, and documentation. The FAA and defense certification authorities don't move quickly, and for good reason.
Hybron's claim that it has already tested components in a hot-fired engine suggests the company is further along than many early-stage manufacturers. But there's a vast gulf between successful testing and full-rate production approval. The industry is littered with startups that demonstrated promising lab results only to stall out when scaling or certification proved more complex than anticipated.
Still, the company appears to be moving with unusual velocity. The Forbes recognition. The pre-order pipeline. The expansion in El Segundo. All of it points to a startup in aggressive growth mode, perhaps more aggressive than the founders initially expected.
If Hybron's teased announcement materializes in the coming weeks—posts have hinted at something significant on the horizon—it may clarify how much capital the company has raised and which investors are willing to bet on its manufacturing thesis.
What's at Stake
For now, defense industry watchers are waiting to see whether the 100x speed claims translate into actual production runs at scale. And whether those pre-orders convert into delivered hardware.
The question isn't just whether Hybron's technology works. It's whether it works reliably, repeatedly, and at the quality levels required by customers whose tolerance for failure is effectively zero.
If it does, the implications extend well beyond one startup's cap table. Composite manufacturing has been a bottleneck in aerospace for decades—a place where cost and timelines balloon even as material performance improves. A validated solution to that problem would ripple across the industry.
That's a big if. But in an environment where defense supply chains are under strain and production speed has become a strategic imperative, even the possibility is enough to generate attention.
Hybron has the attention now. What comes next will determine whether it can deliver on the promise.
