How I Invest with David Weisburd
Hosted by David Weisburd
Written by a model from the transcript; not yet reviewed.
This episode features a discussion with Nelson Mills, founder and COO of Vauth, about building a major defense tech company in the undersea autonomy space. The guest and host explore the transition from venture capital to founder, the challenges of hardware and maritime manufacturing, and the role of asymmetric warfare in modern geopolitics. Mills explains how the company raised its early rounds, scaled production of its S6 vehicle, and utilized modular manufacturing to create significant price advantages and defensibility in a market historically dominated by high-cost, low-utility systems. The conversation highlights the strategic shift toward unmanned vehicles and the realities of competing in a complex global defense landscape.
Listeners will gain specific insights into how hard-tech startups can achieve capital efficiency by starting with smaller, man-portable systems before scaling up. The discussion provides a candid look at venture capital value-add, the realities of fundraising in deep tech, and the strategic importance of building products that serve as effective deterrents against geopolitical threats.
The episode opens with the host introducing the show and setting the stage for the interview with Nelson Mills.
The conversation shifts to the looming China–Taiwan conflict, questioning whether the U.S. navy is prepared for a potential naval war and the strategic implications for defense contractors.
Mills discusses how his venture capital background equipped him with fundraising skills and a network that proved valuable when launching Vatton, while also noting the limited direct application of VC experience to day‑to‑day founding tasks.
Mills outlines the fundraising journey—from a $2 million pre‑seed round to a total of $85 million—emphasizing the importance of early traction and the role of venture capitalists as customers.
The focus turns to why undersea autonomy is ripe today, highlighting AI, hardware cost reductions, and the unique challenges of navigation and communication underwater.
Mills explains Vatton’s modular manufacturing strategy, combining shared components across vehicles to achieve cost efficiency while maintaining flexibility for diverse missions.
The discussion explores how low‑cost undersea systems create asymmetric advantages, deter adversaries, and shift the balance of power for both large and small nations.
Mills reflects on the human side of building Vatton, sharing insights on hiring the right people, managing feedback, and cultivating a productive, positive workplace.
Nelson discusses the importance of discerning feedback, balancing receptiveness with self-protection, and using criticism to grow.
Nelson emphasizes that founders should always be in a raising mindset, building investor relationships even when not actively fundraising.
Nelson outlines how founders should think ahead, anticipate company growth stages, and prepare for scaling challenges.
Nelson reflects on his changing perspective about luck, arguing that while it plays a role, consistent action and portfolio building are key.
Scaling to a Hundred Billioninsight
The guest explains that transitioning products to full production readiness and winning major contracts creates defensibility and price advantages that can build a hundred-billion-dollar company.
Most investors fall into the category of disappearing after investing, while a small percentage actively help or become an operational interference.
Solving the Cost-Scale Equationstrategy
Traditional undersea vehicles cost millions of dollars with niche use cases, and scaling requires bringing costs down to open up broader commercial and military markets.
Overcoming Undersea Challengesinsight
Building undersea autonomy requires solving extreme technical hurdles like GPS denial, poor visibility, and worse-than-dial-up acoustic communications.
The company raised a $2 million pre-seed round on an $8 million cap in just 30 days by presenting a clear problem set, a capable team, and a massive potential market.
Capital Efficient Hardware Designstrategy
Founders in hardware should consider starting with a smaller version or a core component to remain capital efficient before scaling to full system production.
The company has de-risked its technology, transitioned its S6 vehicle to production readiness, and is scaling manufacturing in a new 90,000-square-foot facility.
Modular Manufacturing Strategystrategy
The company divides vehicles into modules and uses high-flexibility manufacturing to share parts across different vehicle scales while maintaining multi-mission capability.
“Anduril understood that not only do we have to develop new technology, but we also have to do business in a different way, right? If we copy how a prime does business, then your cost basis is just going to be extremely high.”
“I truly do believe in deterrent effect and our national security and the national security of our allies. And I think our systems will ultimately help defend democratic values across the world.”
“I think the biggest mistake or biggest lesson I've learned in hiring is that if someone comes into an interview and they're really negative about their last company, they're gonna join you and be really negative in general.”
“I think the best thing to probably have known is like, hey, it's gonna work out.”
“You can put yourself in the absolute best position to win and do all the right moves.”
“And I think there's more luck to things that then people are willing to admit.”
What happens when autonomous underwater vehicles become cheap enough to manufacture at scale? Nelson Mills is the Founder of Vatn Systems, a defense technology company building autonomous underwater vehicles. Nelson explains why undersea autonomy has lagged aerial drones, how advances in AI, navigation, manufacturing, and autonomy are changing the economics, and why Vatn is building lower-cost systems designed to operate at scale. We also discuss raising $85 million for a hardware startup, the rise of asymmetric warfare, lessons from Anduril, and what it takes to build a new defense prime.
10,070 words · 2 speakers
Speaker names marked are inferred from speaking time and the show’s known hosts — they are not voice-verified.
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