Ewald H. Hoelker

Sarna Kunststoff Holding AG develops, manufactures, and distributes waterproofing membranes for flat and pitched roofs. The company provides air management systems and plastic components for automotive interiors as well as waterproofing material for construction projects. It has production plants in China, the Czech Republic, Germany, Mexico, Switzerland, the UK, and the US. The company was founded in 1979 and is headquartered in Sarnen, Switzerland.

Whiterock Capital LLC (Whiterock Capital) is a private equity/venture capital firm founded in 1998 by Lane W. Pennington and Shawn T. Walsh. The firm is headquartered in Tulsa, Oklahoma.

Thorco Holdings LLC is engaged in pressure, liquid level, and flow control products. It serves markets, including chemical processing, oil and gas, refining, pipeline, power generation, pulp and paper, pharmaceutical, and other industrial segments. The company was founded in 1929 and it is headquartered in Tulsa, OK.

Hilti AG engages in the development, manufacture, and sale of construction tools and equipment. The company's product portfolio includes anchor systems, construction chemicals, cordless systems, direct fastening, drilling and demolition, firestop, diamond coring and cutting, modular support systems, measuring systems, screw fastening, façade systems, as well as accessories. It also provides system solutions, as well as software and services. The company was founded by Martin Hilti and Eugen Hilti in 1941 and is headquartered in Schaan, Liechtenstein.