Private Equity Invests $4 Billion in Defense Tech

Geopolitical tensions and rising military spending are driving traditional buyout funds to close the financing gap between innovation and mass production. According to PitchBook data, private equity growth investments in defense technology rose to $4 billion in the first 9 months of 2026. This figure represents an 8-fold increase compared to the $500 million total in 2024.

How much capital flowed into defense startups?

Venture capital alone being insufficient for industrial-scale production has accelerated the move of large funds into early-stage companies. The number of private equity growth deals in defense rose from 15 in 2024 to 31 in 2025, and to 48 as of September 2026. While these investments accounted for only 3% of defense private equity deal value in 2024, this share reached 41% in 2026. PitchBook Chief Industry Analyst Jim Corridore said private equity has entered territory previously held by venture capital.

The search for capital across the sector is also at record levels. A survey conducted by law firm White & Case among 250 senior decision-makers at UK defense companies revealed that 97% of executives will seek significant external financing over the next 12 months. A report by Dealroom and Resilience Media showed that defense startups in NATO and allied nations raised $27.1 billion in funding through September. This total nearly doubled the capital raised in all of 2025.

Is there an investment bubble and valuation risk?

Private equity giant Advent International committed up to $1 billion to next-generation defense technologies in March. The fund, which added autonomous systems developers Shield AI and Saronic to its portfolio, deployed approximately 3/4 of this capital. Advent Managing Partner Shonnel Malani said companies are being valued on technological promises rather than revenue, profit or order books, creating excessive froth in the market. Malani explained that they walked away from many tables because valuations reached irrational levels, adding that the risk of a sharp correction is high.

French private equity firm Weinberg Capital Partners, meanwhile, is focusing on established, cash flow-positive suppliers rather than early-stage startups. Company partner Lionel Mestre said they see merger opportunities in Europe's fragmented defense supply chain. Mestre added that the return of US President Donald Trump to the White House and pressure on European countries regarding defense spending have radically changed institutional investors' perspective on the sector.

This content is for information purposes only and does not constitute investment advice.