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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.

HEICO Corporation, through its subsidiaries, designs, manufactures, and sells aerospace, defense, and electronic related products and services in the United States and internationally. Its Flight Support Group segment provides jet engine and aircraft component replacement parts; thermal insulation blankets and parts; renewable/reusable insulation systems; and specialty components. This segment also distributes hydraulic, pneumatic, structural, interconnect, mechanical, and electro-mechanical components for the commercial, regional, and general aviation markets; and offers repair and overhaul services for jet engine and aircraft component parts, avionics, instruments, composites, and flight surfaces of commercial aircraft, as well as for avionics and navigation systems, and other instruments utilized on military aircraft. The company's Electronic Technologies Group segment provides electro-optical infrared simulation and test equipment; electro-optical laser products; electro-optical, microwave, and other power equipment; electromagnetic and radio frequency (RF) interference shielding and suppression filters; power conversion and interface; interconnection devices; and underwater locator beacons and emergency locator transmission beacons. This segment also offers traveling wave tube amplifiers and microwave power modules; memory products and specialty semiconductors; harsh environment connectivity products and custom molded cable assemblies; RF and microwave products; communications and electronic intercept receivers and tuners; self-sealing auxiliary fuel systems; active antenna systems and airborne antennas; nuclear radiation detectors; silicone products; power amplifiers; ceramic-to-metal feedthroughs and connectors; technical surveillance countermeasures equipment; RF receivers and sources; embedded computing solutions; test sockets and adapters; and radiation assurance services. The company was incorporated in 1957 and is headquartered in Hollywood, Florida.

HEICO Corporation, through its subsidiaries, designs, manufactures, and sells aerospace, defense, and electronic related products and services in the United States and internationally. Its Flight Support Group segment provides jet engine and aircraft component replacement parts; thermal insulation blankets and parts; renewable/reusable insulation systems; and specialty components. This segment also distributes hydraulic, pneumatic, structural, interconnect, mechanical, and electro-mechanical components for the commercial, regional, and general aviation markets; and offers repair and overhaul services for jet engine and aircraft component parts, avionics, instruments, composites, and flight surfaces of commercial aircraft, as well as for avionics and navigation systems, and other instruments utilized on military aircraft. The company's Electronic Technologies Group segment provides electro-optical infrared simulation and test equipment; electro-optical laser products; electro-optical, microwave, and other power equipment; electromagnetic and radio frequency (RF) interference shielding and suppression filters; power conversion and interface; interconnection devices; and underwater locator beacons and emergency locator transmission beacons. This segment also offers traveling wave tube amplifiers and microwave power modules; memory products and specialty semiconductors; harsh environment connectivity products and custom molded cable assemblies; RF and microwave products; communications and electronic intercept receivers and tuners; self-sealing auxiliary fuel systems; active antenna systems and airborne antennas; nuclear radiation detectors; silicone products; power amplifiers; ceramic-to-metal feedthroughs and connectors; technical surveillance countermeasures equipment; RF receivers and sources; embedded computing solutions; test sockets and adapters; and radiation assurance services. The company was incorporated in 1957 and is headquartered in Hollywood, Florida.

MTU Aero Engines AG, together with its subsidiaries, engages in the development, manufacture, marketing, and maintenance of commercial and military aircraft engines, and aero-derivative industrial gas turbines in Germany, other European countries, North America, Asia, and internationally. It operates through two segments: Original Equipment Manufacturing (OEM Business); and Maintenance, Repair, and Overhaul (MRO Business). The company offers commercial aircraft engines for wide body jets, narrow body and regional jets, business jets, and turboprops; military aircraft engines for fighter jets, helicopters, and transporters; and industrial gas turbines. It also maintains, repairs, and overhauls commercial and military engines; and manufactures and markets various spare parts. The company was formerly known as MTU Aero Engines Holding AG and changed its name to MTU Aero Engines AG in May 2013. MTU Aero Engines AG was founded in 1913 and is headquartered in Munich, Germany.

Rolls-Royce Holdings plc develops and delivers complex power and propulsion solutions for air, sea, and land in the United Kingdom and internationally. The company operates through four segments: Civil Aerospace, Defence, Power Systems, and New Markets. The Civil Aerospace segment develops, manufactures, markets, and sells aero engines for large commercial aircraft, regional jet, and business aviation markets, as well as provides aftermarket services. The Defence segment is involved in the development, manufacture, marketing, and sale of military aero engines, naval engines, and submarine nuclear power plants, as well as offers aftermarket services. The Power Systems segment engages in the development, manufacture, marketing, and sale of integrated solutions for onsite power and propulsion under the mtu brand name. The New Markets segment develops, manufactures, and sells small modular reactor and new electrical power solutions. Rolls-Royce Holdings plc was founded in 1884 and is headquartered in London, the United Kingdom.