Western electric is the sole producer of the Western Electric Vacuum Tube.

Hughes Aircraft Company provides aerospace and defense contract services and products in the United States. It was founded as a division of Hughes Tool Company. Its products include the Hughes H-4 Hercules ""Spruce Goose"" aircraft, the atmospheric entry probe carried by the Galileo spacecraft, and the AIM-4 Falcon guided missile. Hughes Aircraft Company was established in 1932 by Howard Hughes in Glendale, California. It was acquired by General Motors from the Howard Hughes Medical Institute in 1985.

HD Hyundai Heavy Industries Co., Ltd. engages in the manufacture and sale of marine structures, plants, and engines. It operates through the following businesses: Shipbuilding, Naval and Special Ships, Offshore and Industrial Plant Engineering, and Engine and Machinery. The company was founded on June 1, 2019 and is headquartered in Ulsan, South Korea.

Hitachi Via Mechanics, Ltd. manufactures and distributes printed wiring board systems. Its products encompass PWB mechanical drilling machines, routing machines, laser drilling machines, hole analyzers, digital direct exposure, and exposure machines. The firm also specializes in factory automation equipment, systems for machining and manufacturing tasks and ark welding and cutting systems. The company was founded on August 17, 1968 and is headquartered in Ebina, Japan.

Wacker GmbH is a German private company located in Berlin. The firm provides investment, property insurance and financing services. It was founded in 2016.

The name Messer has been associated with expertise in industrial gases for more than 120 years. Messer manufacture and supply oxygen, nitrogen, argon, carbon dioxide, hydrogen, helium, inert welding gases, special gases, gases for medicinal use and a wide variety of gas mixtures. As broad as the spectrum of gases available is the variety of industries that utilize them and benefit from the application-specific know-how of Messer´s personnel. These include steel and metals industries, chemicals, food and pharmaceuticals, the automobile and electronics industries, medicine, research and environmental technology.

TOPAZ is globally acknowledged as one of the leading manufacturers of LGP (Light Guide Plate), the fundamental component for LED TVs. Leveraging their expertise, they are poised to venture into new business domains, including the development of innovative products and LED lighting, by effectively applying their cutting-edge technology. In pursuit of enhanced productivity and optimized competitiveness, TOPAZ maintains an unwavering commitment to embracing change and fostering innovation. They persistently strive to overcome challenges, ensuring continuous growth and development. TOPAZ is dedicated to upholding high standards and adhering to regulations, while simultaneously earning the trust of shareholders, customers, and employees. Their unwavering focus on these principles positions them as a dynamic and progressive company.

AFL Telecommunications LLC engages in the provision of solutions to the energy, service provider, enterprise, and industrial markets. Its products include fiber optic cable, conductor accessories, fiber optic connectivity, test and inspection, fusion splicing, specialty optical fiber, board level fiber connectivity, aluminum clad steel, rail transit systems, copper apparatus, and fiber optic cleaning. The company was founded in 1984 and is headquartered in Duncan, SC.

The British Oxygen Co. Ltd., a subsidiary of Linde plc, is a British company located in Guildford. The firm engages in distributing oxygen.

AO Safety Products is an American private company located in Southbridge, MA. The firm provides optical instruments & lenses.

Produces solid propellant rocket motors

Coherent, Inc. is a provider of laser solutions and optics for microelectronics, life sciences, industrial manufacturing, scientific and aerospace, and defense markets. It operates through the following business segments: OEM Laser Sources (OLS) and Industrial Lasers & Systems (ILS). The OLS segment focuses on laser sources and complex optical sub-systems, typically used in microelectronics manufacturing, medical diagnostics, and therapeutic medical applications. The ILS segment covers laser sources, sub-systems, and tools, which are used for industrial laser materials processing. The company was founded by Eugene Watson on May 26, 1966, and is headquartered in Santa Clara, CA.

HardRAM Co., Ltd. develops, manufactures and sells laser application systems. It provides laser solutions and equipments for the semiconductor, electric and light crystal display industries. The company was founded on November 6, 2000 and is headquartered in Seongnam, South Korea.

Circuit Foil is incorporated as a Luxembourg-based company with major shareholders. It offers electrodeposited copper foils, Li-ion batteries, copper electrolyte, and other electronic components. Copper foils are used in a wide variety of products, including smartphones, 5G devices, high-speed digitals, IoT, autonomous vehicles, IC substrates, and smart cards.

Mitsuboshi Diamond Industrial Co. Ltd. is a private company located in Suita, Japan, that operates in several countries. The firm manufactures and distributes glass cutting tools.

Lintec Corp. develops, manufactures, and sells pressure-sensitive adhesive materials in Japan and internationally.