Defense sector growth investments surge as private equity warns of valuation risks

Private capital is flowing into defense technology at a rapid pace, driven by rising military budgets and geopolitical tensions. According to PitchBook data reported by CNBC, private equity firms invested $4 billion in defense technology growth investments in the first nine months of 2026, up sharply from $500 million in 2024. The shift extends buyout capital beyond established businesses toward younger companies developing drones, missile defense and satellite systems that need funding to scale from innovation into industrial-scale production.

Dealroom and Resilience Media reported in an October report that startups in NATO and allied countries raised $27.1 billion through September 2026, nearly double the total for all of 2025. PitchBook counts defense private equity growth deals rising from 15 in 2024 to 31 in 2025 and 48 through September 2026, with these transactions making up 41% of defense PE deal value this year compared with 3% in 2024.

Analysts say private equity, debt and other financing tools are becoming more important because venture capital alone may not be sufficient to fund expansion. A White & Case survey of 250 senior decision-makers at UK defense companies found that 97% expect to seek significant external funding over the next 12 months. Partner Daniel Turgel said private capital now plays a critical role in financing defense technology companies, with private equity, venture capital, sovereign wealth funds and family offices all seeking greater sector exposure.

The article also flags concerns that valuations are outpacing fundamentals as capital inflows accelerate. The development comes amid broader consolidation in private capital, including EQT's agreement to acquire Stockbridge shortly after its Coller Capital purchase, as firms pursue scale amid fundraising pressure and slower asset sales.