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Applied Optoelectronics, Inc. designs, manufactures, and sells fiber-optic networking products in the United States, Taiwan, and China. It offers optical modules, optical filters, lasers, laser components, subassemblies, transmitters and transceivers, turn-key equipment, headend, node, distribution equipment, and amplifiers. The company sells its products to internet data center operators, cable television, telecom equipment manufacturers, fiber-to-the-home, and internet service providers through its direct and indirect sales channels. Applied Optoelectronics, Inc. was incorporated in 1997 and is headquartered in Sugar Land, Texas.

EMCORE Corporation, together with its subsidiaries, designs and manufactures fiber optic gyro, ring laser gyro, and micro electromechanical system-based inertial sensors and systems in the United States and internationally. It offers navigation system and inertial sensing products, such as gyroscopes and multi-axis sensors, inertial measurement units, fiber optic gyroscopes, quartz micro electromechanical systems, inertial navigation systems, tactical navigation, and naval and amphibious navigation, as well as radar positioning and pointing systems, and battlefield/artillery survey systems. The company sells its products through direct sales force, application engineers, third-party sales representatives, and distributors. EMCORE Corporation was founded in 1984 and is headquartered in Alhambra, California.

O2Micro International Ltd. engages in design, development, and marketing of integrated circuits and solutions. The firm offers solutions for manufacturers of products in the consumer electronics, computers, industrial, communications, and automotive markets. Its products include LED backlighting controller ICs, battery management units, and gas gauge. The company was founded in April 1995 and is headquartered in George Town, Cayman Islands.

Resonant Inc., a late-stage development company, designs and develops filters for radio frequency (RF) and front-ends used in the mobile device, automotive, medical, Internet-of-Things, and related industries in Japan, China, and internationally. It uses WaveX, a software platform to configure and connect resonators that are building blocks of RF filters. The company develops a series of single-band designs for frequency bands; multiplexer filter designs for two or more bands to address the carrier aggregation requirements; and XBAR, a technology for mobile and non-mobile applications, including 5G, WiFi, and Ultra-WideBand applications. Resonant Inc. was incorporated in 2012 and is headquartered in Austin, Texas.

Transphorm, Inc., a semiconductor company, develops, manufactures, and sells gallium nitride (GaN) semiconductor components for high voltage power conversion applications in Mainland China, Hong Kong, Taiwan, the United States, Japan, South Korea, India, and Europe. The company's products include GaN field effect transistors in various packages. Its GaN devices allows customers to design power systems creating functional value in various end products, including smartphone power adapters/fast-chargers, power supplies for datacenter servers/communication, industrial power converters, chargers/converters/inverters for electric vehicles, and other applications. The company offers its products through regional distributors and sales representatives. Transphorm, Inc. was founded in 2007 and is headquartered in Goleta, California.