Midwest Aero Support, LLC.- A Diatom Capital Company

Aviation and Aerospace Component ManufacturingIllinois, United States11-50 Employees

Midwest Aero Support, LLC, is a small to mid-sized aviation and aerospace component manufacturer and repair specialist based in Machesney Park, Illinois. The company serves commercial, military, regional, corporate, fixed-wing and rotary-wing aircraft, offering repair, overhauls and manufacturing solutions designed for quick turnaround and reasonable cost. Its capabilities are organized into five departments—mechanical/electromechanical/pneumatic systems, electrical and electronic components, composites and de-ice boot services, seating subsystems, and the manufacture of electronic components and subassemblies.

MAS operates as a Part 145 FAA and EASA repair station with multiple ratings, including limited airframe, and holds certifications such as ISO 9001:2015 and AS9100:2009 along with ITAR registration. It maintains authorized service center relationships with UTC Aerospace Systems, ATR, BE Aerospace, Liebherr and Meggitt, reflecting its integration with major aerospace manufacturers. In August 2025, Diatom Capital acquired Midwest Aero Support, expanding its capabilities and global reach.

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