Coherent Corp. engages in the development, refinement, manufacturing, and marketing of engineered materials, opto-electronic components and devices, and lasers for use in the industrial, communications, electronics, and instrumentation markets. It operates through the following segments: Networking, Materials, and Lasers. The Networking segment leverages compound semiconductor technology platforms and deep knowledge of end-user applications. The Materials segment markets engineered materials and optoelectronic devices. The Lasers segment serves industrial customers in semiconductor capital equipment, display capital equipment, precision manufacturing, and aerospace and defense, as well as instrumentation customers in life sciences and scientific research. The company was founded by Carl J. Johnson in 1971 and is headquartered in Saxonburg, PA.

KLA Corp. engages in the supply of process control and yield management solutions for the semiconductor and related nano-electronics industries. The company operates through the following segments: Semiconductor Process Control, Specialty Semiconductor Process, and PCB, Display and Component Inspection. The Semiconductor Process Control segment provides a comprehensive portfolio of inspection, metrology and data analytics products and related services. The Specialty Semiconductor Process segment develops and sells advanced vacuum deposition and etching process tools. The PCB, Display and Component Inspection segment enables electronic device manufacturers to inspect, test and measure PCBs, flat panel displays and ICs to verify their quality. Its products include manufactured chips, reticle, packaging, surface profilers, nanochemical testers, KT pro equipment, and compound semiconductors. The company was founded on July 9, 1975 and is headquartered in Milpitas, CA.

Optex Systems Holdings, Inc. engages in the manufacture of optical sighting systems and assemblies for the Department of Defense, foreign military applications, and commercial markets. It operates through the following segments: Optex Richardson, Applied Optics Center Dallas, and Other. The Optex Richardson segment handles optical sighting systems and assemblies' production. The Applied Optics Center-Dallas segment serves as the key supplier of laser coated filters used in the production of periscope assemblies. The company was founded in 1987 and is headquartered in Richardson, TX.