What does it take to build a serious profitable, sustainable, scaled defense tech startup? In the newest episode of the Mission Matters podcast David and I sit down with John Serafini, the CEO and founder of HawkEye 360 and a partner at Shield Capital, to discuss what it took to grow HawkEye into a profitable company with:🛰️ 30+ satellites on orbit💰 Nine-figures of ARR🤝 Customers across the U.S. government and allied nationsIn this episode, we unpack: 🔹 What it means to “build a serious company” in defense tech 🔹 Why trust, humility, and sustainability matter more than hype 🔹 The realities of working in classified environments 🔹 Lessons from the SPAC boom, capital discipline, and profitability 🔹 Where the real white spaces in space tech still exist 🔹 How to partner effectively with defense primes (without fear-mongering)This conversation is a must-listen for founders, operators, investors, and policymakers building at the intersection of commercial innovation, space, and national security, and includes some hot takes from John as well.As always, please reach out if you or anyone you know is building at the intersection of national security and commercial markets. And please make sure to subscribe to the Mission Matters podcast to hear more stories of what it takes to build at the intersection of national security and commercial markets.KEYWORDSHawkeye 360,radio frequency, satellite technology, national security, commercial space,signal intelligence, defense technology, space startups, classified customers,international markets, ITAR compliance, defense primes, profitability,fundraising strategy.ChaptersThe Warfighter Is the SunWhy startups must design around the customer, not themselvesWhat Hawkeye 360 Actually Does (RF from Space)Commercial signals intelligence, explained simplyFrom West Point to Founder & InvestorJohn Serafini’s background and path to building Hawkeye 360“Just Build a Serious Company”The advice that shaped Hawkeye’s operating philosophyTrust, Humility, and SustainabilityThe three principles every defense tech startup must internalizeSpaceX, Rocket Lab, and What Great Looks LikeLessons from the most successful space companiesIs It Easier to Work with DoD Today?How the defense innovation environment has changed since 2015The RDT&E Trap and the Valley of DeathWhy too many startups get stuck at TRL 4–6Buy What We Can, Build What We MustWhat’s actually different in today’s defense procurement climateThe SPAC Boom: Lessons LearnedWhy many space SPACs struggled—and what founders should avoidTurning Academic IP into a Scaled Space CompanyHow Hawkeye 360 spun out of Virginia Tech researchBuilding for Classified CustomersWhy practitioner insight and trust matter more than clever techIn-Q-Tel, Clearances, and Market EntryHow startups should realistically approach the ICPartnering with Defense Primes (Without Fear)Why primes aren’t the enemy—and how they can accelerate impactITAR, International Sales, and Allied CustomersHow Hawkeye built a global business despite regulatory hurdlesScaling a Space Hardware CompanyThe hidden challenges of moving from first launch to constellationCapital Discipline and Just-in-Time GrowthAvoiding overhead traps while scaling responsiblyWhen Should Hardware Startups Focus on Profitability?Why growth and profitability aren’t mutually exclusiveWhat John Looks for as an InvestorHow he evaluates early-stage space and defense tech startupsTech That Fell Short of ExpectationsWhy optical communications still haven’t scaled as expectedWhite Spaces in Space TechOn-orbit processing, data relay, and future opportunitiesWho Really Determines Success?The overlooked role of policymakers and appropriatorsFinal Thoughts: Building for Missions That MatterWhy discipline, trust, and seriousness define enduring companies

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