Roger W. Thiltgen

The ExOne Co. engages in the development, manufacture, and marketing of three-dimensional (3D) printing machines. It offers 3D printing solutions to industrial customers in the aerospace, automotive, heavy equipment, energy, and oil and gas industries. The company was founded in 1995 and is headquartered in North Huntingdon, PA.

Puris LLC produces titanium powder for additive manufacturing and advanced technology applications. The firm also processes for producing other pre-alloyed powders specifically to meet the demands of additive manufacturing. Its customers include the automotive, healthcare and oil and gas industries. The company was founded in 2014 and is headquartered in Bruceton Mills, WV.

Astrotech International Corp. designs, manufactures, and markets products related to above ground storage tanks. The company is based in Pittsburgh, PA. Astrotech International was acquired by ITEQ, Inc. on October 29, 1997 for $105.21 million.

HMT LLC provides aboveground storage tank solutions. The firm offers tank repair and maintenance, floating roof and seal repair, installation services, fabrication services, project management and turnkey, calibration services, and engineering services. The company was founded by Roger W. Thiltgen in 1978 and is headquartered in The Woodlands, TX.

Red Back Mining, Inc. engaged in the exploration of diamonds and phosphate properties. It had two key projects: the Chirano Gold Mine in Ghana and the Tasiast Gold Mine in Mauritania. In addition, the company held an extensive exploration portfolio both in Ghana and Mauritania. The company was founded on March 16, 1988 and was headquartered in Vancouver, Canada.