Optex Systems Holdings, Inc. engages in the business of manufacturing optical sighting systems and assemblies for the Department of Defense, foreign military applications, and commercial markets. It operates through the following segments: Optex Systems Richardson and Applied Optics Center Dallas. The Optex Systems 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.

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.