Lawrence E. Murphy

Proof Research, Inc. is a private company that specializes in creating match-grade carbon fiber barrels for firearms. The company is based in Columbia Falls, MT and has subsidiaries in the United States. The company uses a unique manufacturing process that melds aerospace materials and thermo-mechanical design principles to create barrels that weigh a fraction of traditional steel barrels while maintaining accuracy. Proof Research also has an advanced composite division that develops and supplies high-temperature products and solutions to customers within the aerospace and defense industries. The company rigorously tests their products in the field and in the competitive arena to ensure they perform flawlessly in the most challenging environments. Lawrence E. Murphy has been the CEO of the company since 2014.

Semitool, Inc. engages in the design, manufacture, installation, and service of equipment for use in the fabrication of semiconductor devices. The company was founded by Raymon F. Thompson in 1979 and is headquartered in Santa Clara, CA.

Part of Tosoh Corp., Tosoh SMD, Inc. is a company that manufactures and distributes chemical precursors, light emitting diodes, and alloys for semiconductors. The company is based in Grove City, OH.