Bain Capital Private Equity has acquired a majority stake in FDH Aero, a Commerce, California-based aerospace and defense supply chain solutions provider. The investment marks Bain's expansion into critical defense manufacturing infrastructure as government spending on aerospace programs remains elevated.

Existing investor Audax Private Equity will retain a significant ownership position alongside Bain. Since Audax first backed FDH in 2017, the company has expanded across five continents and completed 12 acquisitions that strengthened its product portfolio and market reach. CEO Ian Wash will continue leading operations.

The deal reflects growing private equity interest in aerospace supply chains amid supply chain reshoring efforts and increased defense budgets. FDH's growth trajectory suggests strong demand for specialized aerospace components and logistics services. The transaction is expected to close in the second half of 2026.

Bain's majority control positions it to capitalize on continued aerospace modernization programs while maintaining Audax's institutional knowledge of the business.