Amphenol Corporation, together with its subsidiaries, primarily designs, manufactures, and markets electrical, electronic, and fiber optic connectors in the United States, China, and internationally. It operates through three segments: Harsh Environment Solutions, Communications Solutions, and Interconnect and Sensor Systems. The company offers connectors and connector systems, including harsh environment data, power, high-speed, fiber optic, and radio frequency interconnect products; busbars and power distribution systems; and other connectors. It also provides value-add products, such as backplane interconnect systems, cable assemblies and harnesses, and cable management products; other products comprising flexible and rigid printed circuit boards, hinges, other mechanical, and production related products. In addition, the company offers consumer device, network infrastructure, and other antennas; coaxial, power, and specialty cables; and sensors and sensor-based products. It sells its products through its sales force, independent representatives, and a network of electronics distributors to original equipment manufacturers, electronic manufacturing services companies, original design manufacturers, and service providers in the automotive, broadband communication, commercial aerospace, industrial, information technology and data communication, military, mobile device, and mobile network markets. Amphenol Corporation was founded in 1932 and is headquartered in Wallingford, Connecticut.

Benchmark Electronics, Inc., together with its subsidiaries, offers product design, engineering services, technology solutions, and manufacturing services in the Americas, Asia, and Europe. The company provides engineering services and technology solutions, including new product design, prototype, testing, and related engineering services; and custom testing and technology solutions, as well as automation equipment design and build services. It also offers electronics manufacturing and testing services, such as printed circuit board assembly and test solutions, assembly of subsystems, circuitry and functionality testing of printed assemblies, environmental and stress testing, and component reliability testing; component engineering services; manufacturing defect analysis, in-circuit testing, functional testing, and life cycle testing services, as well as environmental stress tests of assemblies of boards or systems; and failure analysis. In addition, the company provides precision machining and electromechanical assembly services; and subsystem and system integration services, including assembly, configuration, and testing for various industries. Further, it provides value-added support systems; supply chain management solutions; direct order fulfillment; and aftermarket non-warranty services, including repair, replacement, refurbishment, remanufacturing, exchange, systems upgrade, and spare parts manufacturing throughout a product's life cycle. The company serves original equipment manufacturers in the aerospace and defense, medical technologies, complex industrials, semiconductor capital equipment, telecommunications, and advanced computing industries. It markets its services and solutions primarily through a direct sales force. The company was formerly known as Electronics, Inc. Benchmark Electronics, Inc. was founded in 1979 and is headquartered in Tempe, Arizona.

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.

Kimball Electronics, Inc. engages in the provision of electronics manufacturing, engineering, and supply chain support services to customers in the automotive, medical, and industrial end markets. The Company also offers contract manufacturing services, including engineering and supply chain support for the production of electronic assemblies and other products, including non-electronic components, medical devices, medical disposables, and precision molded plastics, as well as automation, test, and inspection equipment primarily used in automotive, medical, and industrial applications. In addition, it is also involved in the production and testing of printed circuit board assemblies, as well as clean room assembly, cold chain, and product sterilization management activities. Further, the company offers design services and support, supply chain services and support, rapid prototyping and new product introduction support, product design and process validation and qualification, industrialization and automation of manufacturing processes, reliability testing, aftermarket services, drug delivery devices and solutions with and without electronics, and product life cycle management services, as well as and assembly of medical, automotive, and industrial products. It operates in the United States, China, Mexico, Poland, Romania, Thailand, India, Japan, Vietnam, and internationally. Kimball Electronics, Inc. was founded in 1961 and is headquartered in Jasper, Indiana.

Key Tronic Corporation provides contract manufacturing services to original equipment manufacturers in the United States and internationally. It offers integrated electronic and mechanical engineering, assembly, sourcing and procurement, logistics, and new product testing services. The company's services include product design, surface mount technologies and pin through hole capability for printed circuit board assembly, tool making, precision plastic molding, sheet metal fabrication and painting, liquid injection molding, complex assembly, prototype design, and full product assembly services. It markets its products and services primarily through field sales people and distributors. Key Tronic Corporation was incorporated in 1969 and is headquartered in Spokane Valley, Washington.

Nortech Systems Incorporated provides design and manufacturing solutions for electromedical devices, electromechanical systems, assemblies, and components in the United States, Mexico, and China. It offers a range of technical and manufacturing, and support services, including project management, designing, testing, prototyping, manufacturing, supply chain management, and post-market services. The company also provides manufacturing and engineering services for medical devices, printed circuit board assemblies, wire and cable assemblies, and higher-level electromechanical assemblies. In addition, it offers engineering and repair services. The company serves original equipment manufacturers in the medical, aerospace and defense, and industrial markets through business development teams and independent manufacturers' representatives. Nortech Systems Incorporated was founded in 1990 and is headquartered in Maple Grove, Minnesota.

SigmaTron International, Inc. operates as an independent provider of electronic manufacturing services in the United States, Mexico, China, Vietnam, and Taiwan. The company provides electronic and electromechanical manufacturing solutions, including manufacturing and testing services, an assembly and testing of all types of electronic printed circuit board assemblies; design services that provides design for manufacturability and design for test; supply chain management; and warehousing and distribution services which include international shipping, drop shipments, and support services to inventory. It offers assistance to achieve compliance to restrictions of hazardous substances, restriction of chemicals, and conflict minerals regulations. The company serves its services to industrial electronics, consumer electronics, and medical/life sciences industries. It markets its services through independent manufacturers' representative organizations. SigmaTron International, Inc. was incorporated in 1993 and is headquartered in Elk Grove Village, Illinois.

Fathom Digital Manufacturing Corporation, a digital manufacturing platform, provides product development and manufacturing services in North America. It provides plastic and metal additive technologies, computer numerical control machining, injection molding and tooling, precision sheet metal fabrication, design engineering, and catering services. The company serves the technology, defense, aerospace, medical, automotive, and Internet of Things (IoT) sectors. Fathom Digital Manufacturing Corporation was founded in 1984 and is headquartered in Hartland, Wisconsin.