AerCap Holdings N.V. engages in the lease, financing, sale, and management of commercial flight equipment in China, Hong Kong, Macau, the United States, Ireland, and internationally. The company offers aircraft asset management services, such as remarketing aircraft and engines; collecting rental and maintenance rent payments, monitoring aircraft maintenance, monitoring and enforcing contract compliance, and accepting delivery and redelivery of aircraft and engines; and conducting ongoing lessee financial performance reviews. Its aircraft asset management services also include periodically inspecting the leased aircraft and engines; coordinating technical modifications to aircraft to meet new lessee requirements; conducting restructuring negotiations in connection with lease defaults; repossessing aircraft and engines; arranging and monitoring insurance coverage; registering and de-registering aircraft; arranging for aircraft and engine valuations; and providing market research services. In addition, the company provides cash management services, including treasury services, such as the financing, refinancing, hedging, and ongoing cash management of vehicles; and administrative services comprising accounting and corporate secretarial services consisting of the preparation of budgets and financial statements. Further, it offers airframe and engine parts and supply chain solutions to airlines; maintenance, repair, and overhaul service providers; and aircraft parts distributors. The company had a portfolio of owned, managed, or on order aircraft. AerCap Holdings N.V. was founded in 1995 and is headquartered in Dublin, Ireland.

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.

FTAI Aviation Ltd. owns and acquires aviation and offshore energy equipment for the transportation of goods and people worldwide. It operates through two segments, Aviation Leasing and Aerospace Products. The Aviation Leasing segment owns and manages aviation assets, including aircraft and aircraft engines, which it leases and sells to customers. As of December 31, 2023, this segment owned and managed 363 aviation assets consisting of 96 commercial aircraft and 267 engines, including eight aircraft and seventeen engines that were located in Russia. The Aerospace Products segment develops, manufactures, repairs, and sells aircraft engines and aftermarket components for aircraft engines. The company was founded in 2011 and is headquartered in New York, New York.

Spirit AeroSystems Holdings, Inc. engages in the design, engineering, manufacture, and marketing of commercial aerostructures worldwide. It operates through three segments: Commercial, Defense & Space, and Aftermarket. The Commercial segment offers forward, mid, and rear fuselage sections and systems, floor beams, nacelles, struts/pylons, horizontal and vertical stabilizers, flaps and slats flight control surfaces, wing structures, and wing systems. This segment primarily serves commercial and business/regional jet programs. The Defense & Space segment engages in the fabrication, bonding, assembly, testing, tooling, processing, engineering analysis, and training on fuselage, strut, nacelle, and wing aerostructures; provision of missiles and hypersonics solutions, such as solid rocket motor throats, nozzles, re-entry vehicle thermal protections systems; forward cockpit and cabin, and fuselage work on rotorcraft aerostructures; and classified programs. This segment primarily serves U.S. Government defense programs. The Aftermarket segment provides maintenance, repair, and overhaul services; fuselage, strut, nacelle, and wing aerostructures spare parts; repair services for radome, flight control surfaces, and nacelles; rotable assets trading and leasing; and engineering services. This segment primarily serves both commercial and defense and space programs. The company was formerly known as Mid-Western Aircraft Systems Holdings, Inc. Spirit AeroSystems Holdings, Inc. was founded in 1927 and is headquartered in Wichita, Kansas.

VSE Corporation operates as a diversified aftermarket products and services company in the United States. The company operates through two segments, Aviation and Fleet. The Aviation segment provides aftermarket parts supply and distribution; maintenance, repair, and overhaul services for components and engine accessories supporting commercial, business, and general aviation operators. This segment serves commercial airlines, regional airlines, cargo transporters, MRO integrators and providers, aviation manufacturers, corporate and private aircraft owners, and fixed-base operators. The Fleet segment offers parts supply, inventory management, e-commerce fulfillment, logistics, supply chain support, and other services to support the commercial aftermarket medium- and heavy-duty truck market. This segment also provides sale of vehicle parts and supply chain services to support client truck fleets, as well as sustainment solutions and managed inventory services to government and commercial truck fleets. VSE Corporation was incorporated in 1959 and is headquartered in Vienna, Virginia.

AAR Corp. provides products and services to commercial aviation, government, and defense markets worldwide. The Parts Supply segment leases and sells aircraft components and replacement parts. The Repair & Engineering segment provides airframe maintenance services, such as airframe inspection, painting, line maintenance, airframe modification, structural repair, avionics service and installation, exterior and interior refurbishment, and engineering and support services; component repair services comprising maintenance, repair, and overhaul (MRO) services, engine and airframe accessories, and interior refurbishment; and landing gear overhaul services, including repair services on wheels and brakes. This segment also develops specific aircraft components and parts; and designs proprietary designated engineering representative repairs. The Integrated Solutions segment engages in the fleet management and operation of customer-owned aircraft; provision of supply chain logistics services, such as material planning, sourcing, logistics, information and program management, and parts and component repair and overhaul services; and flight hour component inventory and repair services. In addition, the segment provides integrated software solutions comprising Trax, a cloud-based electronic enterprise resource platform, as well as a suite of paperless mobility apps for automating MRO workflows. 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.

Willis Lease Finance Corporation operates as a lessor and servicer of commercial aircraft and aircraft engines worldwide. The company operates through two segments, Leasing and Related Operations, and Spare Parts Sales. The Leasing and Related Operations segment engages in acquiring and leasing commercial aircraft, aircraft engines, and other aircraft equipment, as well as the purchase and resale of commercial aircraft engines and other aircraft equipment, and other related businesses. The Spare Parts Sales segment purchases and resells after-market engine parts, whole engines, engine modules, and portable aircraft components. The company also focuses on engine management and consulting business. It serves commercial aircraft operators, as well as maintenance, repair, and overhaul organizations. As of December 31, 2023, it had a total lease portfolio of 337 engines, 12 aircraft, one marine vessel, and other leased parts and equipment, and with 74 lessees in 42 countries; and managed a total lease portfolio of 198 engines, aircraft, and related equipment for other parties. The company was founded in 1985 and is headquartered in Coconut Creek, Florida.

Air T, Inc., through its subsidiaries, provides overnight air cargo, ground equipment sale, and commercial jet engines and parts in the United States and internationally. The company's Overnight Air Cargo segment offers air express delivery services. As of March 31, 2024, this segment had 105 aircraft under the dry-lease agreements with FedEx. Its Ground Equipment Sales segment manufactures, sells, and services aircraft deicers, scissor-type lifts, military and civilian decontamination units, flight-line tow tractors, glycol recovery vehicles, and other specialized equipment. This segment sells its products to passenger and cargo airlines, ground handling companies, the United States Air Force, airports, and industrial customers. The company's Commercial Jet Engines and Parts segment offers commercial aircraft trading, leasing, and parts solutions; commercial aircraft storage, storage maintenance, and aircraft disassembly/part-out services; commercial aircraft parts sales, exchanges, procurement services, consignment programs, and overhaul and repair services; and aircraft instrumentation, avionics, and various electrical accessories for civilian, military transport, regional/commuter and business/commercial jet, and turboprop aircraft to airlines and commercial aircraft leasing companies. This segment also provides composite aircraft structures, and repair and support services, as well as aircraft service and maintenance services. Air T, Inc. was incorporated in 1980 and is based in Charlotte, North Carolina.