Bruce Dienst

Rush-Copley Medical Center, Inc. provides healthcare services. Its services include emergency services, cancer care center, family birth, neuroscience, heart and vascular, joint reconstruction and replacement, cardiac care, women's services, and diagnostic imaging. The company was founded in 1886 and is headquartered in Aurora, IL.

Simpson Technologies Corp. specializes in the design and production of process technologies and services for the global metal casting and chemical process industries. Its products include batch and continuous mixing equipment, molding sand coolers, on-line mixer control and automation systems, core sand preparation systems, foundry sand reclamation systems and sand laboratory instrumentation. The company was founded by Peter L. Simpson in 1912 and is headquartered in Aurora, IL.

Simpson Technologies (Deutschland) GmbH engages in the production and distribution of machines and tools. It also holds and manages its own assets. The company was founded on August 16, 2017 and is headquartered in Alfeld, Germany.

Rush System for Health provides general health care services. It serves through the integration of patient care, education, and research and community partnerships. The company was founded in 1995 and is headquartered in Chicago, IL.