Vance Street Capital Sells Jet Parts Engineering and Victor Sierra Aviation to TransDigm for $2.2 Billion

Vance Street Capital has agreed to sell its portfolio companies, Jet Parts Engineering and Victor Sierra Aviation, to TransDigm Group for $2.2 billion. Jet Parts is a leading independent designer and manufacturer of aerospace aftermarket solutions, while Victor Sierra is a designer, manufacturer, and distributor of proprietary PMA and aftermarket parts. Vance Street partnered with the founders of both companies to build their foundation, focusing on engineering resources, human talent, facilities, and technical capabilities. The sale is expected to close in Q2 2026.