Patrick Tlustos

Part of Northwestern Engineering Co., Hills Products Group, Inc. engages in wood preservation, fencing, and wholesale lumber products. The company is based in Spearfish, SD.

Northwestern Engineering Co. operates as real estate agencies. The firm consists of four principal components real estate acquisition and development, real estate management, hospitality and wood products. It also provides real estate services including property management, maintenance, and leasing, bookkeeping, accounting and financial compliance assistance. The company was founded in 1927 and is headquartered in Rapid City, SD.

Part of CRH Plc, Hills Materials is a company that provides asphalt paving, grading, milling, and reclaiming services. The company is based in Rapid City, SD. Hills Materials was acquired by CRH Plc on January 01, 1999.

Acuity Medical International, Inc. develops therapeutic devices and protocols for age related macular degeneration to treat adults experiencing vision problems and enabling them to regain or maintain their sight. It offers home and clinical systems. The company was founded by John B. Jarding and Dr. George D. O’Clock in 1998 and is headquartered in Minneapolis, MN.