R. Brian Hanson

Alliance HealthCare Services, Inc. engages in the provision of outsourced medical services. It operates through the following segments: Radiology, Oncology, Interventional, and Corporate. The Radiology segment provides mobile to fixed-site to service line management to hospitals and provider groups. The Oncology segment consists of a range of oncology services and ancillary services for cancer patients. The Interventional segment offers pain management services for a wide range of conditions and diseases through therapeutic, minimally invasive procedures to treat and ease pain, medication, laboratory testing, and other services. The company was founded in 1987 and is headquartered in Irvine, CA.

ION Geophysical Corp. engages in the provision of geoscience technology, services, and solutions to the oil and gas industry. It operates through the E&P Technology and Services, and Operations Optimization segments. The E&P Technology and Services segment creates digital data assets and delivers services that improve decision-making, mitigate risk and maximize portfolio value for E&P companies. The Operations Optimization segment develops mission-critical subscription offerings and engineering services that enable operational control and optimization offshore. The company was founded in 1968 and is headquartered in Houston, TX.

Fisher Scientific International, Inc. manufactured and distributed scientific equipment and instruments that included everything from Erlenmeyer flasks to video/microscope systems. The company also produced chemicals, clinical equipment, diagnostic kits, reagents and laboratory workstations. Fisher Scientific International was founded in 1902 and was headquartered in Hampton, NH.

Culligan International Co. provides water treatment products and services. The firm specializes in water softener & filter, commercial filtration, reverse osmosis, bottled water delivery and water technology. The company was founded by Emmett Joseph Culligan in 1936 and is headquartered in Rosemont, IL.

GX Technology Corp. develops seismic imaging solutions for the oil and gas industry. It provides statics, pre-stack velocity modeling, OBC processing, and geophysical analysis. The company was founded on September 21, 1994 and is headquartered in Houston, TX.

Safran Sensing Technologies Switzerland SA supplies micro and optical electro-mechanical components. The firm provides foundry services, custom solutions, design on demand and test on demand services. The company was founded in 2001 and is headquartered in Yverdon-les-Bains, Switzerland.

Alliance Imaging, Inc. supplies medical imaging equipment. The private company is based in Wareham, MA and has subsidiaries in United States. The company was founded by Viscount Nicholas Bearsted. The CEO is John Prifti.

ION Exploration Products (U.S.A.), Inc. engages in the oil and gas exploration services. The company was founded on June 8, 1995 and is headquartered in Houston, TX.