Segment Reports

A&D Aftermarket M&A Transactions - July 2025


Download and read the July 2025 issue of the A&D Aftermarket Monthly, covering the latest M&A deal activity and valuation trends in the aerospace & defense manufacturing sector, including companies providing maintenance, repair & overhaul (MRO) services, parts manufacturer approval (PMA) and replacement parts, distribution and logistics, supplemental type certificate (STC) and modifications, supply chain management and aftermarket services. Sign up for the A&D Aftermarket Monthly distribution list to stay up-to-date on the headline acquisitions impacting your market and the current dynamics of the publicly traded strategic companies within the industry.


Key A&D Aftermarket Deals Announced

Target
Buyer
Description

Heliwork Services

Castle Air Aviation Group

  • Target: United Kingdom-based Heliwork Services is a helicopter maintenance, repair, and overhaul (MRO) specialist offering comprehensive line and base maintenance, dynamic and hydraulic component servicing, and full aircraft refurbishment under CAA/EASA Part-145 authorization. The company also provides OEM-certified blade repair services for Leonardo and Bell helicopters and supports component overhaul and parts sales.

  • Buyer: United Kingdom-based Castle Air Group is a rotary aviation specialist offering helicopter charter, sales, engineering, pilot training, and parts supply. The company offers on-demand services including aerial filming, emergency medical flights, VIP transport, maintenance support, and CAMO oversight.

  • Terms: Transaction announced on July 7, 2025. Terms not disclosed.

Midwest Aero Support

Diatom Capital

  • Target: Machesney Park, IL-based Midwest Aero Support is a provider of MRO services for aircraft structures, pneumatics, and interior components in private sector and U.S. federal government aerospace and defense markets. The company also provides electronic and mechanical manufacturing services for commercial aircraft.

  • Buyer: Hebron, KY-based Diatom Capital is a private equity firm focusing on investments in aerospace maintenance, manufacturing, and service businesses. The company partners with
    precision component, MRO, and operational service providers to drive growth and operational excellence.

  • Terms: Transaction announced on July 8, 2025. Terms not disclosed.

Envoy Aerospace

Astronics

  • Target: Aurora, IL-based Envoy Aerospace is a provider of FAA Organization Designation Authorization (ODA) services for the certification of avionics, connectivity and entertainment systems, electronic flight bags (EFB), monitoring solutions, insulation, and cabin mechanical systems. The company specializes in helping clients obtain FAA STCs, providing design approvals for new product PMAs, and assisting in obtaining foreign type approval.

  • Buyer: East Aurora, NY-based Astronics is a designer and manufacturer of aerospace electronics and safety systems, including in-seat power, lighting, connectivity, and electronic circuit breakers. The company delivers power and connectivity solutions, lighting, safety systems, and electronic circuit protection for commercial, business, and military aircraft.

  • Terms: Transaction announced on July 8, 2025. Purchase price was $8M.

Yen Teknik

PrimeFlight

a portfolio company of

The Sterling Group

  • Target: Turkey-based Yen Teknik is a provider of ground support equipment maintenance, engineering, inspection, and consulting services for airport refueling vehicles and related systems. The company performs refueling unit overhauls, quality and safety inspections, and maintenance operations under industry standards.

  • Buyer: Sugar Land, TX-based PrimeFlight Aviation Services is an airport services provider offering aircraft, passenger, and security support to air carriers and airports. The company offers aircraft fueling, lavatory and cabin cleaning, de-icing, baggage handling, passenger assistance, and security screening services.

  • Terms: Transaction announced on July 9, 2025. Terms not disclosed.