Bryon Hargis
279 posts
Looking back at Castelion's most important 2025 test flight on our path to deliver credible deterrence. Thanks to @Saronic for providing autonomous shipborne telemetry support that enabled critical data capture. We're gearing up for an even more demanding flight-test schedule in 2026.
@castelion Proud to partner together to enable complex multi-domain operations, at sea and beyond!
Thanks to @SquawkCNBC for hosting our CEO & Co-Founder @hargsb. He outlined how Castelion is closing the deterrence gap and why scaling hypersonic manufacturing matters. We’re building the largest hypersonic manufacturing facility at our 1,000-acre Project Ranger site in New Mexico, backed by @AltimeterCap, @lightspeedvp, @a16z, and other great partners. Watch here: youtube.com/watch?v=jaXzkK…
The culture document written by @bhorowitz that every a16z new hire signs:
.@SECWAR “We’re on the Arsenal of Freedom Tour across the country, intentionally going to companies—just like this one—WHO WILL BE the difference-makers in whether or not we have peace through strength.”
What does @USWREMichael @DoWCTO think about most? Scaled hypersonics at cost 💪🇺🇸 @castelion @hargsb
Three and a half years ago, @neelkunjur and I decided to go from being Brothers, to being Co-Founders. Today, we’re excited to announce that @K2SpaceCo has raised a $250M Series C at a $3B valuation. This round comes on the heels of $500M in signed contracts across commercial and US Government customers. Our Series C is being led by @Redpoint, with participation from @TRowePrice, Hedosophia, @AltimeterCap, @lightspeedvp, Alpine Space Ventures and many others. We’re fortunate to be building at a unique time - launch vehicles are getting larger and the frequency of launch is increasing. When it comes to satellites, it’s now possible to Build Bigger, and we intend to be on the vanguard of doing just that. Building Bigger allows us to deliver a step change in power (20kW today, 100kW tomorrow), reliability, and redundancy. Our satellites are designed to deliver the maximum amount of capability wherever that capability is needed (LEO, MEO, GEO, cislunar space and beyond). Coming up next - 20kW satellite launch early 2026, three satellites launched early 2027, and many more to come after that as we scale up production in our 180k sq ft factory in Torrance, CA. We’re looking forward to sharing more on our progress over the coming months and years. -
Great story on the origins of the @castelion team and how a group of friends from SpaceX set out to solve America’s hypersonics shortage. 🇺🇸
