Treating the DoD as One Market
The biggest mistake defense startups make
The real opportunity in defense is won one budget line, one program office, and one operator workflow at a time. A startup is not selling into one $800B pool, it is trying to match a specific product to a specific funded need, then earn trust through a staircase of contracts. That is why Anduril started with small deals and why Forterra killed legacy services work to center the company on one repeatable autonomy product.
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Anduril and Forterra both describe defense sales as closer to enterprise sales than a giant federal land grab. The first contract is often small, then expands only after field proof, program manager buy in, and budget alignment. The jump is from $100K to a few million to a program of record, not from prototype to sweeping Pentagon rollout.
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The budget itself is fragmented. Forterra breaks the market into specific procurement and RDT&E lines, noting that most dollars are already tied up in ships, missiles, trucks, and other existing programs. For a startup selling one narrow product, the true reachable market can shrink from headline billions to a few hundred million unless it spans multiple products or has commercial demand too.
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That is why dual use matters so much. Forterra sells the same autonomy stack into military vehicles and commercial yard trucks, and Shield AI, Saildrone, and other newer defense companies each anchor on a distinct mission slice rather than trying to be a general purpose defense prime on day one. The winning pattern is a tight wedge that can compound into adjacent markets.
Going forward, defense startups that win will look less like broad Pentagon challengers and more like focused companies that dominate one micro market, then reuse the same product into nearby ones. The best outcomes will come from teams that pair a concrete battlefield or logistics workflow with a procurement path, then use that foothold to build a broader platform over time.