J.F. Lehman-backed Forged Solutions Group completes acquisition of Custom Alloy

Forged Solutions Group, a forgings provider for the aerospace, defense and space markets and a portfolio company of an affiliate of J.F. Lehman & Company, has completed its acquisition of Custom Alloy Corporation, a forged components maker headquartered in High Bridge, New Jersey. The companies announced the deal on June 18, 2026.

Custom Alloy is vertically integrated, offering open and closed die forgings, fittings and pipe in more than 170 alloys, with in-house conversion, machining, heat treatment and testing. The company is a Level 1 qualified U.S. Navy manufacturer for nuclear forgings and fittings.

J.F. Lehman managing partner Alex Harman said the acquisition adds U.S. nuclear navy exposure and diversifies the platform. FSG chief executive Olivier Jarrault said the companies could cross-leverage forging process IP to optimize operational capacity.