US Defense Industry Faces Capital Mismatch Despite Record Funding

While market capitalization of publicly traded US aerospace and defense firms reached $1.6 trillion in 2025—nearly double 2019 levels—the sector is priced like a low-growth utility. This valuation profile discourages the long-term capital required to expand production capacity for munitions and essential hardware. Venture capital in the sector has surged tenfold to approximately $10 billion, yet this funding remains concentrated in early-stage software and AI, often failing to reach the factories and material suppliers needed to sustain a modern force.

The report highlights a stark funding imbalance: for every dollar the government commits to new-entrant production, private investors provide seven. This reliance on private capital to bridge the gap from prototype to scale is failing because the necessary exit paths, such as private equity, remain largely on the sidelines. According to Michael Sion, a partner at Bain & Company, the current business models are insufficient for the modern threat environment. Without a regulatory and contracting framework that aligns risk with reward, critical innovation risks stalling before it can ever be deployed to the front lines.