John W. Colloton

Allion Healthcare, Inc. provides pharmacy and disease management services. It offers specialty pharmacy and disease management services focused on HIV/AIDS patients as well as specialized biopharmaceutical medications and services to chronically ill patients. The company was founded by Derace L. Schaffer and John Pappajohn in 1983 and is headquartered in Sharon Hill, PA.

Radiologix, Inc. used to provide diagnostic imaging services. It owned and operated multi-modality diagnostic imaging centers that used advanced imaging technologies such as positron emission tomography (PET), magnetic resonance imaging (MRI), computed tomography (CT) and nuclear medicine, as well as x-ray, general radiography, mammography, ultrasound and fluoroscopy. The company was founded by Derace L. Schaffer & Sami S. Abbasi in 1996 and is headquartered in Dallas, TX.

Conmed Healthcare Management, Inc. provides correctional healthcare services to county and municipal detention centers across the United States. It offers various services, including general healthcare, dialysis, pharmacy, acute care, EKG's, durable medical equipment, physical and occupational therapy, IV therapy, and diagnostic imaging/radiology. The firm also offers laboratory, dental, mental health, electronic medical records, arranging and contracting for hospital and surgical, electronic medication administration records, and utilization management and utilization review services. Conmed Healthcare Management was founded by Ronald H. Grubman and Howard M. Haft in 1984 and is headquartered in Hanover, MD.

University of Iowa Hospitals and Clinics recognized as one of the best hospitals in the United States is Iowa's only comprehensive academic medical center. A 680-bed comprehensive academic medical center and regional referral center, UI Hospitals and Clinics is committed to providing patient-focused care available to every person, around the clock in an environment devoted to innovative care, excellent service, and exceptional outcomes. More than 760 staff physicians and dentists; 480 resident physicians and dentists; 180 fellow physicians; 1,565 nurses; and 4,640 other professional and support staff provide specialized care.

Wellmark, Inc. provides health insurance products and related services. It pays health benefit claims. It also operates through it subsidiaries such as Wellmark Blue Cross and Blue Shield of Iowa. The company was founded in 1948 and is located in Des Moines, IA.

MidAmerican Energy Co. engages in the provision of electricity services. It operates through the Regulated Electric and Regulated Natural Gas segments. The Regulated Electric segment includes regulated retail sales of electricity to residential, commercial, and industrial customers and from wholesale sales. Regulated Natural Gas segment transports gas owned by others through its distribution system. The company was founded in 1995 and is headquartered in Des Moines, IA.