Resilience Capital Partners acquired aircraft manufacturer Systron Donner Inertial.

Resilience Capital Partners, a private equity firm that invests in middle-market companies, acquired Concord, California-headquartered Systron Donner Inertial, the world’s leading supplier of quartz microelectromechanical systems used in inertial sensing products that provide precision guidance, navigation and locational solutions to the aircraft industry. Financial terms were not disclosed. “Systron Donner is an important player in an industry that is critical to America’s future economic prosperity, leadership in aviation and national security,” said Steven H. Rosen, co-chief executive officer of Resilience Capital Partners. “Technology and innovation leadership is important for our nation’s future, and Systron Donner has been at the forefront of developing high-performing, made-in-America inertial sensors and systems for more than 50 years.”