NATO's 5% GDP defense pledge unlocks a startup opportunity — Sweet Capital's Pippa Lamb on Europe's military awakening

Summary

NATO's agreement to raise member defense spending to 5% of GDP by 2035 marks the most significant shift in alliance burden-sharing in decades. The US currently funds roughly two-thirds of NATO's total budget — in 2023, Washington contributed $860 billion of the alliance's $1.3 trillion spend, against Germany's $68 billion, the UK's $65 billion, and France's $56 billion. The prior benchmark was 2% of GDP, a target most members had not consistently met.

Pippa Lamb, partner at Sweet Capital, reads the commitment as credible rather than aspirational, pointing to UK Prime Minister Starmer's pledge to exceed 4% of GDP on defense by 2027 — up from the UK's current 2.3% — as the most market-relevant signal. That trajectory implies a near-doubling of UK defense procurement within two years, creating a rare window of net-new budget that carries none of the political friction associated with reallocating existing spend away from legacy programs.

Where the Money Flows

Lamb identifies four companies worth tracking as the spending ramp plays out: Rheinmetall, Helsing, Palantir, and Anduril. Rheinmetall's stock illustrates the institutional repricing already underway — shares sit at roughly $432, up from approximately $30 in 2022, and up around 250% year-to-date. Saab has seen a similar rally. Anduril recently announced a partnership with Rheinmetall, signaling that incumbents and new entrants are moving toward collaboration rather than pure competition for European contracts.

Lamb does not expect the market to produce ten Andurils. Defense primes are structurally oligopolistic, and building one takes time. Anduril already has deep UK and European relationships. Helsing, Swedish-backed but German-based, is the closest European equivalent. A stealth-stage UK company is also attracting significant interest, notably with a largely American cap table — consistent with a broader pattern of US capital seeking trusted-ally exposure to European rearmament.

The Strategic Opportunity Gap

The most actionable opportunity Lamb sees is not at the exquisite-weapons tier — high-cost, low-deployability systems designed more for deterrence than use — nor at the improvised front-line drone tier that Ukraine has industrialized. The commercial white space sits between those poles: affordable, autonomous, technologically modern systems capable of being deployed against asymmetric threats like Houthi drone attacks without exhausting procurement budgets. That mid-tier is where UK defense startups are currently positioning at the Series A stage.

Europe's credibility problem on this front is real. Russia's initial invasion of Crimea in 2014 gave governments over a decade of observable modern warfare doctrine, yet procurement philosophy barely shifted. Lamb characterizes the current moment as a genuine cultural inflection point in government thinking, which she views as a necessary precondition for startup capital to flow in volume rather than in isolated bets.

UK as the Leading Edge

Within Europe, the UK is moving fastest. It completed a strategic defense review, and Matt Clifford — adviser to Downing Street — has publicly identified defense as a plausible path to producing a trillion-dollar market cap company out of the UK. The government's AI Opportunities Plan, backed by a £2 billion AI spending commitment and an additional £1 billion for ARIA, the deep-tech R&D body, extends that ambition beyond defense into autonomy, robotics, and synthetic biology.

The UK's R&D heritage — spanning AI through DeepMind, robotics, Cambridge and Oxford research centers — gives it a genuine talent base. The remaining friction is institutional. A competing autonomous-vehicle startup incubated at Cambridge was effectively stunted by university technology-transfer clauses that distorted its cap table, illustrating how legacy academic capital structures can neutralize technical advantages. Wave, founded by Alex Kendall out of Cambridge but capitalized through venture including SoftBank's Masayoshi Son, bypassed that model entirely and is now conducting the UK's first public-road autonomous vehicle trials in partnership with Uber, with Uber CEO Dara Khosrowshahi reportedly in London this week.

Ukraine's drone manufacturing capacity — likely the highest-volume producer globally, albeit largely artisanal rather than industrialized — represents a further asymmetric asset. Eric Schmidt has moved aggressively into that space following the US pullback in support commitments. Whether a defensible, scalable company emerges from that industrial base remains an open question, but the technical and operational knowledge embedded in Ukraine's war economy is increasingly attracting both private capital and procurement interest across the continent.