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AAR Corp. provides products and services to commercial aviation, government, and defense markets worldwide. It operates through Aviation Services and Expeditionary Services segments. The Aviation Services segment engages in lease and sale of new, overhauled and repaired engine, and airframe parts and components, as well as aircrafts; and offers customized flight hour component inventory and repair, warranty claim management, and outsourcing programs for engine and airframe parts and components. This segment also provides fleet management and operations of customer-owned aircraft for the U.S. Department of State; customized performance-based supply chain logistics programs, which includes material planning, sourcing, logistics, information and program management, airframe and maintenance planning, and component repair, and overhaul services for U.S. Department of Defense and foreign governments. Further, it offers airframe inspection, maintenance, repair and overhaul, painting services, line maintenance, modifications, structural repairs, avionics service and installation, exterior and interior refurbishment, and engineering services and support; and repair and overhaul components including landing gears, wheels, and brakes for commercial and military aircraft; and operates six airframe maintenance facilities and one landing gear overhaul facility. The Expeditionary Services segment designs, manufactures, and repairs transportation pallets and containers and shelters for military and humanitarian tactical deployment activities, including armories, supply and parts storage, refrigeration systems, tactical operation centers, briefing rooms, laundry and kitchen facilities, water treatment, and sleeping quarters, as well as engages in provision of engineering, design, and system integration services for specialized command and control systems. AAR Corp. was founded in 1951 and is headquartered in Wood Dale, Illinois.

Astro Aerospace Ltd. is a research and development company, which engages in the creation of aerial drones used for carrying passengers and cargo. The company was founded on March 27, 2007 and is headquartered in Lewisville, TX.

BAE Systems plc provides defense, aerospace, and security solutions worldwide. The company operates through five segments: Electronic Systems, Platforms & Services, Air, Maritime, and Cyber & Intelligence. The Electronic Systems segment offers electronic warfare systems, navigation systems, electro-optical sensors, military and commercial digital engine and flight controls, precision guidance and seeker solutions, military communication systems and data links, persistent surveillance capabilities, space electronics, and electric drive propulsion systems. The Cyber & Intelligence segment provides solutions to modernize, maintain, and test cyber-harden aircraft, radars, missile systems, and mission applications that detect and deter threats to national security; systems engineering, integration, and sustainment services for critical weapons systems, C5ISR, and cyber security; and solutions and services to intelligence and federal/civilian agencies. It also offers data intelligence solutions to protect nations, businesses, and citizens. The Platforms & Services segment manufactures, and upgrades combat vehicles, weapons, and munitions, as well as provides naval ship repair services and the management of government-owned ammunition plants. The Air segment develops future combat air systems and falconworks. The Maritime segment provides maritime and land activities, including submarine, ship build, and support programmes. BAE Systems plc was founded in 1970 and is headquartered in Camberley, the United Kingdom.

Airbus SE, together with its subsidiaries, engages in the design, manufacture, and delivery of aerospace products, services, and solutions worldwide. It operates through three segments: Airbus, Airbus Helicopters, and Airbus Defence and Space. The Airbus segment develops, manufactures, markets, and sells commercial jet passenger aircraft, freighter aircraft, regional turboprop aircraft, and aircraft components, as well as provides aircraft conversion and related services. The Airbus Helicopters segment develops, manufactures, markets, and sells civil and military helicopters; and provides helicopter-related services. The Airbus Defence and Space segment designs, develops, delivers, and supports military air systems and related services. This segment also offers civil and defence space systems for telecommunications, earth observations, navigation, and science and orbital systems; missile and space launcher systems; and services around data processing from platforms, secure communication, and cyber security. The company was formerly known as Airbus Group SE and changed its name to Airbus SE in April 2017. Airbus SE was incorporated in 1998 and is headquartered in Leiden, the Netherlands.

Héroux-Devtek Inc. engages in the design, development, manufacture, finishing, assembling, and repair and overhaul of aircraft landing gears, hydraulic and electromechanical flight control actuators, custom ball screws, and fracture-critical components. The company serves commercial and defence sectors of the aerospace market. It operates in Canada, the United States, the United Kingdom, Rest of Europe, Spain, and internationally. The company was formerly known as Heroux Inc. and changed its name to Héroux-Devtek Inc. in 2000. Héroux-Devtek Inc. was incorporated in 1942 and is headquartered in Longueuil, Canada.