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AXT, Inc. designs, develops, manufactures, and distributes compound and single element semiconductor substrates. The company offers indium phosphide for use in data center connectivity using light/lasers, high-speed data transfer in data centers, 5G communications, fiber optic lasers and detectors, consumer devices, passive optical networks, silicon photonics, photonic integrated circuits, thermo-photovoltaics, RF amplifier and switching, infrared light-emitting diode (LEDS) motion control, lidar for robotics and autonomous vehicles, and infrared thermal imaging. It also provides semi-insulating gallium arsenide (GaAs) substrates for use in Wi-Fi and IoT devices, transistors, direct broadcast television, power amplifiers, satellite communications, and solar cells; and semi-conducting GaAs substrates that are used in LEDs, screen displays using micro-LEDs, printer head lasers and LEDs, 3-D sensing using VCSELs, data center communication using VCSELs, sensors for industrial robotics/near-infrared sensors, optical couplers, solar cells, night vision goggles, lidar for robotics and autonomous vehicles, and other lasers, as well as laser machining, cutting, and drilling. In addition, the company offers germanium substrates for use in multi-junction solar cells for satellites, optical sensors and detectors, terrestrial concentrated photo voltaic cells, infrared detectors, and carrier wafer for LED. Further, it provides 6N+ and 7N+ purified gallium, boron trioxide, gallium-magnesium alloy, pyrolytic boron nitride (pBN) crucibles, and pBN insulating parts. It sells its products through direct salesforce in the United States, China, and Europe, as well as through independent sales representatives and distributors in Japan, Taiwan, Korea, and internationally. The company was formerly known as American Xtal Technology, Inc. and changed its name to AXT, Inc. in July 2000. AXT, Inc. was incorporated in 1986 and is headquartered in Fremont, California.

Harvard Bioscience, Inc. develops, manufactures, and sells technologies, products, and services for life science applications in the United States and internationally. The company offers cellular and molecular technology products, such as syringe and peristaltic infusion pump products; electroporation and electrofusion instruments, amino acid analyzers, spectrophotometers, and other equipment for molecular level testing and research; and precision scientific measuring instrumentation and equipment, including data acquisition systems for cellular analysis, complete micro electrode array solutions for in vivo recordings, and in vitro systems for extracellular recordings. It also provides preclinical products that includes platform to assess physiological data from organisms for research, drug discovery, and drug development services comprising implantable and externally worn telemetry systems for use in research to collect cardiovascular, central nervous system, respiratory, and metabolic data; behavioral products; isolated organ and surgical products, instruments and accessories for tissue, and organ-based lab research, including surgical products, infusion systems, and behavior research systems; turn-key respiratory system solutions, including plethysmograph chambers, data acquisition hardware, physiological signal analysis software, and final report generation; inhalation and exposure systems; and GLP-capable data acquisition and analysis systems. The company markets its products through sales organizations, websites, and distributors to research scientists in pharmaceutical and biotechnology companies, universities, hospitals, and government laboratories; and contract research organizations and academic labs. It primarily sells its products under Harvard Apparatus, DSI, Buxco, Biochrom, BTX, Heka, Hugo Sachs, Multichannel Systems MCS GmbH, and Panlab brands. Harvard Bioscience, Inc. was founded in 1901 and is based in Holliston, Massachusetts.

Richardson Electronics, Ltd. provides engineered solutions, power grid and microwave tube, and related consumables worldwide. The Power and Microwave Technologies segment manufactures electron tubes and RF, Microwave and power components for semiconductors; and manufacturing equipment, RF and wireless and industrial power applications, as well as various applications including broadcast transmission, CO2 laser cutting, diagnostic imaging, dielectric and induction heating, energy transfer, high voltage switching, plasma, power conversion, radar, and radiation oncology. This segment also provide thyratrons and rectifiers, power tubes, ignitrons, magnetrons, phototubes, microwave generators, ultracapacitor modules, and liquid crystal display monitors under the Amperex, Cetron, and National brands. Its Green Energy Solutions segment offers design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket, and technical service and repair services for various applications, such as wind, solar, hydrogen, and electric vehicles; and other power management applications that support green solutions including synthetic diamond manufacturing. The Canvys segment provides customized display solutions, which includes touch screens, protective panels, custom enclosures, All-In-One computers, specialized cabinet finishes and application specific software packages, and certification services for corporate enterprise, financial, healthcare, industrial and medical original equipment manufacturers markets. Healthcare segment provides diagnostic imaging replacement parts for CT and MRI systems; replacement CT and MRI tubes; CT service training; MRI coils, cold heads and RF amplifiers; hydrogen thyratrons, klystrons, magnetrons; flat panel detector upgrades; pre-owned CT systems; and additional replacement solutions. The company was founded in 1947 and is headquartered in LaFox, Illinois.

VOXX International Corporation manufactures and distributes automotive electronics, consumer electronics, and biometric products in the United States, Europe, and internationally. Its Automotive Electronics segment offers mobile multi-media infotainment products, including overhead, seat-back, and headrest systems; automotive security, vehicle access, and remote start systems; satellite radios comprising plug and play, and direct connect models; smart phone telematics applications; mobile interface modules; automotive power accessories; rear observation and collision avoidance systems; driver distraction products; power lift gates; turn signal switches; automotive lighting products; automotive sensing and camera systems; USB ports; cruise control systems; and heated seats. The company's Consumer Electronics segment provides speakers; A/V receivers; home theater, and business and streaming music systems; on-ear and in-ear headphones; wired and wireless headphones and ear buds; Bluetooth headphones and ear buds; soundbars; digital living network alliance compatible devices; high-definition television and wireless fidelity antennas; high-definition multimedia interface accessories; karaoke and infant/nursery products; home electronic accessories, such as cabling, power cords, and other connectivity products; performance enhancing electronics; TV universal remote controls; flat panel TV mounting systems; power supply systems and charging products; solar powered balcony systems; electronic equipment cleaning products; hearing aids and personal sound amplifiers; set-top boxes; and home and portable stereos. Its Biometrics segment offers iris identification and biometric security related products. The company was formerly known as Audiovox Corporation and changed its name to VOXX International Corporation in December 2011. VOXX International Corporation was founded in 1960 and is headquartered in Orlando, Florida.