E423: Castelion CEO on Elon Musk, Hypersonic Missiles & the Future of Defense
- Why America’s defense problem is increasingly a manufacturing problem.
- How the defense industry’s “Last Supper” reshaped the industrial base.
- What Bryon learned about speed and iteration at SpaceX.
- Why “the best part is no part” is more than an Elon Musk catchphrase.
- Why Castelion combines product and sales instead of separating them.
- How mission-driven hiring helps protect culture as a startup scales.
- Why Bryon left SpaceX even when defense hardware was considered nearly uninvestable.
- How Castelion survived almost 100 VC rejections.
- Why one major investor can completely change a startup’s access to capital.
- Inside Castelion’s plan to manufacture hypersonic weapons at massive scale.
Bryon Hargis is the co-founder of Castelion, a defense technology company focused on developing and manufacturing advanced hypersonic weapon systems in the United States. Before founding Castelion, Bryon worked at SpaceX, including on the Starshield program and in government satellite sales. His work focused on applying SpaceX capabilities to national security problems, an experience that helped shape Castelion’s hardware-first and customer-driven approach.
Are you interested in sponsoring the How I Invest Podcast? Please email David Weisburd at david@weisburdcapital.com.
We’d like to thank AlphaSense for sponsoring this episode!
Sponsor:AlphaSense is the AI-powered market intelligence platform trusted by 85% of the S&P 100, helping investment professionals make faster, more confident, data-driven decisions. Built for hedge funds, asset allocators, private venture capital firms, and investment bankers, AlphaSense uses advanced AI and powerful search across premium proprietary content to surface the insights that matter most—before the market moves. Elevate your research and stay ahead of the competition. Visit https://www.alpha-sense.com/howiinvest/ to learn more.
Stay Connected with David Weisburd:X/Twitter: @dweisburd LinkedIn: https://www.linkedin.com/in/dweisburd/ Weisburd Pierce: https://www.weisburdpierce.com/
Stay Connected with Bryon Hargis:LinkedIn:https://www.linkedin.com/in/hargsb/
Questions or topics you want us to discuss on How I Invest? Email us at david@weisburdcapital.com.
Disclaimer:This podcast is for informational purposes only and does not constitute investment, financial, legal, or tax advice. Nothing in this episode should be interpreted as an offer to buy or sell any securities or to participate in any investment strategy. All opinions expressed by the host and guests are their own and do not represent the views of Weisburd Pierce. Participants may hold positions or have financial interests in the companies, funds, or investments discussed. Any references to specific investments are for illustrative purposes only. Investing involves risk, including the potential loss of capital. Past performance is not indicative of future results, and any forward-looking statements are subject to risks and uncertainties. Any third-party data or opinions have not been independently verified. Listeners should conduct their own research and consult their own advisors before making any investment decisions.
(0:00) Why America Needs Hypersonic Missiles (3:00) How Defense Manufacturing Lost Its Edge (5:30) What SpaceX Taught Bryon About Building Hardware (10:00) Why Product and Sales Should Be the Same Team (15:30) The Traits Bryon Looks for When Hiring (20:00) SpaceX’s Responsible Engineer Culture (25:00) Why Aerospace Became Too Risk-Averse (30:00) The Danger of Too Much Process (37:00) Nearly 100 VC Rejections to $1B (44:00) Building Hypersonic Missiles at Massive ScaleMore description
- Why America’s defense problem is increasingly a manufacturing problem.
- How the defense industry’s “Last Supper” reshaped the industrial base.
- What Bryon learned about speed and iteration at SpaceX.
- Why “the best part is no part” is more than an Elon Musk catchphrase.
- Why Castelion combines product and sales instead of separating them.
- How mission-driven hiring helps protect culture as a startup scales.
- Why Bryon left SpaceX even when defense hardware was considered nearly uninvestable.
- How Castelion survived almost 100 VC rejections.
- Why one major investor can completely change a startup’s access to capital.
- Inside Castelion’s plan to manufacture hypersonic weapons at massive scale.
Bryon Hargis is the co-founder of Castelion, a defense technology company focused on developing and manufacturing advanced hypersonic weapon systems in the United States. Before founding Castelion, Bryon worked at SpaceX, including on the Starshield program and in government satellite sales. His work focused on applying SpaceX capabilities to national security problems, an experience that helped shape Castelion’s hardware-first and customer-driven approach.
Are you interested in sponsoring the How I Invest Podcast? Please email David Weisburd at david@weisburdcapital.com.
We’d like to thank AlphaSense for sponsoring this episode!
Sponsor:AlphaSense is the AI-powered market intelligence platform trusted by 85% of the S&P 100, helping investment professionals make faster, more confident, data-driven decisions. Built for hedge funds, asset allocators, private venture capital firms, and investment bankers, AlphaSense uses advanced AI and powerful search across premium proprietary content to surface the insights that matter most—before the market moves. Elevate your research and stay ahead of the competition. Visit https://www.alpha-sense.com/howiinvest/ to learn more.
Stay Connected with David Weisburd:X/Twitter: @dweisburd LinkedIn: https://www.linkedin.com/in/dweisburd/ Weisburd Pierce: https://www.weisburdpierce.com/
Stay Connected with Bryon Hargis:LinkedIn:https://www.linkedin.com/in/hargsb/
Questions or topics you want us to discuss on How I Invest? Email us at david@weisburdcapital.com.
Disclaimer:This podcast is for informational purposes only and does not constitute investment, financial, legal, or tax advice. Nothing in this episode should be interpreted as an offer to buy or sell any securities or to participate in any investment strategy. All opinions expressed by the host and guests are their own and do not represent the views of Weisburd Pierce. Participants may hold positions or have financial interests in the companies, funds, or investments discussed. Any references to specific investments are for illustrative purposes only. Investing involves risk, including the potential loss of capital. Past performance is not indicative of future results, and any forward-looking statements are subject to risks and uncertainties. Any third-party data or opinions have not been independently verified. Listeners should conduct their own research and consult their own advisors before making any investment decisions.
(0:00) Why America Needs Hypersonic Missiles (3:00) How Defense Manufacturing Lost Its Edge (5:30) What SpaceX Taught Bryon About Building Hardware (10:00) Why Product and Sales Should Be the Same Team (15:30) The Traits Bryon Looks for When Hiring (20:00) SpaceX’s Responsible Engineer Culture (25:00) Why Aerospace Became Too Risk-Averse (30:00) The Danger of Too Much Process (37:00) Nearly 100 VC Rejections to $1B (44:00) Building Hypersonic Missiles at Massive Scale