Parker-Hannifin Corporation manufactures and sells motion and control technologies and systems for various mobile, industrial, and aerospace markets worldwide. The company operates through two segments: Diversified Industrial and Aerospace Systems. The Diversified Industrial segment offers various motion-control systems and components, such as active and passive vibration control, high purity sealing, coatings, high temperature sealing, cryogenic valves and fittings, HVAC/R controls and monitoring, elastomeric, fabric reinforced, metal, precision cut seals, hydrogen and natural gas filters, electric and hydraulic pumps and motors, industrial air, gas filtration, electric and hydraulic valves, miniature pumps and valves, electromagnetic interface shielding, pneumatic actuators, regulators and valves, electromechanical and hydraulic actuators, power take offs, electronics, drives and controllers, process filtration solutions, engine filtration solutions, rubber to substrate adhesives, fluid condition monitoring, sensors and diagnostics, fluid conveyance hose and tubing, structural adhesives, high pressure connectors, fittings, valves and regulators, thermal management, high purity fittings. The Aerospace Systems segment offers products for use in commercial and defense airframe and engine programs, such as avionics, electric & hydraulic braking systems, electric power, electromechanical actuators, engine exhaust systems and components, fire detection and suppression, flight control systems, fluid conveyance, fuel systems & components, fuel tank inerting systems, hydraulic pumps & motors, hydraulic valves & actuators, pneumatics, seals, sensors, and thermal management products. The company sells its products to original equipment manufacturers, distributors, direct-sales employees, and sales representatives. Parker-Hannifin Corporation was founded in 1917 and is headquartered in Cleveland, Ohio.

Crane Company, together with its subsidiaries, manufactures and sells engineered industrial products in the United States, Canada, the United Kingdom, Continental Europe, and internationally. The company operates in three segments: Aerospace & Electronics, Process Flow Technologies, and Engineered Materials. The Aerospace & Electronics segment supplies critical components and systems, including original equipment and aftermarket parts for commercial aerospace, as well as the military aerospace, defense, and space markets. This segment also offers pressure sensors for aircraft engine control, aircraft braking systems for commercial aircraft and fighter jets, power conversion solutions for spacecraft, and lubrication systems. The Process Flow Technologies segment provides engineered fluid handling equipment for mission-critical applications. It offers process valves and related products, such as lined pipe, fittings and hoses, air-operated diaphragm and peristaltic pumps, instrumentation and sampling systems, valve positioning and control systems, and valve diagnostic and calibration systems; commercial valves; and pumps and systems. The Engineered Materials segment manufactures fiberglass-reinforced plastic panels and coils for use in the manufacturing of recreational vehicles, as well as in commercial and industrial building applications. This segment sells directly to RV, trailer, and truck manufacturers, as well as through distributors and retailers. The company provides its products and solutions to end markets, including commercial and military aerospace, defense, and space; chemical and pharmaceutical production; water and wastewater; non-residential and municipal construction; energy; and other general industrial and consumer-related applications. The company was formerly known as Crane Holdings, Co. Crane Company was founded in 1855 and is based in Stamford, Connecticut.

Loar Holdings Inc., through its subsidiaries, designs, manufactures, and markets aerospace and defense components for aircraft, and aerospace and defense systems in the United States and internationally. It offers products in various categories, which include airframe components, structural components, avionics, composites, braking system components, de-ice and ice protection, electro-mechanical, engineered materials, flight controls, fluid and motion controls, environmental, metal forming, molded components, and restraints and safety devices. The company also provides auto throttles, lap-belt airbags, two-and three-point seat belts, water purification systems, fire barriers, polyimide washers and bushings, latches, hold-open and tie rods, temperature and fluid sensors and switches, carbon and metallic brake discs, fluid and pneumatic-based ice protection, RAM air components, sealing solutions, actuation devices, and others. It primarily serves commercial, business jet and general aviation, and defense markets. Loar Holdings Inc. was founded in 2017 and is headquartered in White Plains, New York.

Hexcel Corporation develops, manufactures, and markets carbon fibers, structural reinforcements, honeycomb structures, resins, and composite materials and parts for use in commercial aerospace, space and defense, and industrial applications. It operates through two segments, Composite Materials and Engineered Products. The Composite Materials segment manufactures and markets fabrics, multi-axials, specialty reinforcements, prepregs and other fiber-reinforced matrix materials, structural adhesives, molding compounds, tooling materials, polyurethane systems, and laminates that are used in military and commercial aircraft, wind turbine blades, recreational products, and other industrial applications, as well as in automotive, marine, and rail transportation. The Engineered Products segment manufactures and markets aircraft structures and finished aircraft components, including wing to body fairings, wing panels, flight deck panels, door liners, rotorcraft blades, spars, and tip caps; and aircraft structural sub-components and semi-finished components used in rotorcraft blades, engine nacelles, and aircraft surfaces, such as flaps, wings, elevators, and fairings; and RF interference control products for military and aerospace applications. This segment also provides interference control materials, structural composites, and services; dielectric absorber foams; magnetic absorbers; and thermoplastics for commercial and defense applications. The company sells its products directly through its managers, product managers, and sales personnel, as well as through independent distributors in the Americas, Europe, the Asia Pacific, India, and Africa. Hexcel Corporation was founded in 1946 and is headquartered in Stamford, Connecticut.

Ducommun Incorporated provides engineering and manufacturing services for products and applications used primarily in the aerospace and defense, industrial, medical, and other industries in the United States. The company operates through two segments, Electronic Systems and Structural Systems. The Electronic Systems segment provides cable assemblies and interconnect systems; printed circuit board assemblies; electronic, electromechanical, and mechanical components and assemblies, as well as lightning diversion systems; and radar enclosures, aircraft avionics racks, shipboard communications and control enclosures, printed circuit board assemblies, cable assemblies, wire harnesses, interconnect systems, lightning diversion strips, surge suppressors, conformal shields, and other assemblies. The segment also supplies engineered products, including illuminated pushbutton switches and panels for aviation and test systems; microwave and millimeter switches and filters for radio frequency systems and test instrumentation; and motors and resolvers for motion control. In addition, this segment provides engineering expertise for aerospace system design, development, integration, and testing. The Structural Systems segment designs, engineers, and manufactures contoured aluminum, titanium, and Inconel aero structure components; structural assembly products, such as winglets, engine components, and fuselage structural panels; aerodynamic systems; and metal and composite bonded structures and assemblies comprising aircraft wing spoilers, large fuselage skins, rotor blades on rotary-wing aircraft and components, flight control surfaces, engine components, ammunition handling systems, and magnetic seals. It serves commercial aircraft, military fixed-wing aircraft, military and commercial rotary-wing aircraft, and space programs, as well as industrial, medical, and other end-use markets. The company was founded in 1849 and is headquartered in Costa Mesa, California.

Astronics Corporation, through its subsidiaries, designs and manufactures products for the aerospace, defense, and electronics industries in the United States, rest of North America, Asia, Europe, South America, and internationally. The company operates in two segments, Aerospace and Test Systems. The Aerospace segment offers lighting and safety systems, electrical power generation systems, distribution and seat motions systems, aircraft structures, avionics products, system certification, and other products. This segment serves airframe manufacturers (OEM) that build aircraft for the commercial, military, and general aviation markets; suppliers to OEMs; and aircraft operators, such as airlines; suppliers to the aircraft operators; and branches of the U.S. Department of Defense. The Test Systems segment designs, develops, manufactures, and maintains automated test systems that support the aerospace and defense, and mass transit industries, as well as training and simulation devices for commercial and military applications. It serves OEMs and prime government contractors for electronics and military products. Astronics Corporation was incorporated in 1968 and is headquartered in East Aurora, New York.

CPI Aerostructures, Inc. engages in the contract production of structural aircraft parts for fixed wing aircraft and helicopters in the commercial and defense markets. The company offers aerostructure and aerosystem assemblies, including new production and repair/overhaul of fielded wing structures and other control surfaces, rudder island, engine inlets/nacelles, engine exhaust manifolds, aircraft doors and windows, aircraft steps and racks, other aircraft secondary structures, airborne pod structures and integration of internal systems, radar housing structures, panel assemblies, and mechanical door locking and canopy lifting systems. It provides diameter tube bending, such as complex ducts and tubes in steel, aluminum, titanium, and nickel alloys; fusion welded fluid tanks, and resistance welding for spot and seam; wire harnesses; and power control, fuel management, power distribution, and fully integrated electrical control systems, as well as enclosures. In addition, the company offers engineering, program and supply chain management services, kitting contracts, and maintenance repair and overhaul services. The company was formerly known as Consortium of Precision Industries, Inc. and changed its name to CPI Aerostructures, Inc. in July 1992. CPI Aerostructures, Inc. was incorporated in 1980 and is headquartered in Edgewood, New York.

Air Industries Group, together with its subsidiaries, engages in the design, manufacture, and sale of precision components and assemblies for defense and commercial aerospace industry in the United States. It offers actuators, arresting gears, aerostructures, aircraft structures, chaff pod assemblies, machining and milling solutions, cylinders, drag beams and braces, flight controls, flight safety critical components, integrated assemblies, landing gears, large diameter turn-mills, submarine valves, thrust struts, engine mounts, and turbine engine components and weldments for aircraft jet engines, ground turbines, and other complex machines. The company was founded in 1941 and is based in Bay Shore, New York.