John James McDonough

TomoTherapy, Inc. manufactures and provides radiation treatment systems for advanced radiation therapy. It provides radiation treatment services for cancer patients with its TomoTherapy Hi·Art System, which changes the intensity of the radiation beam so that it adapts to the shape of the tumor. The firm's system focuses on killing cancer cells while sparing healthy tissue. The company was founded by Thomas Rockwell Mackie and Paul J. Reckwerdt in 1997 and is headquartered in Madison, WI.

McDonough Medical Products Corp. markets and supplies medical products to the health care industry. The company was founded by Edwin J. McDonough and John James McDonough on June 27, 2001 and is headquartered in Lake Forest, IL.

Dentsply Ltd. designs, manufactures, and markets dental care products. Its product line includes artificial teeth, x-ray accessories, pharmaceuticals, brochures, endodontics, impression materials, restoratives, dental sealants, ultrasonic scalers, and crown and bridge materials. The company is headquartered in Cayman Islands, the United Kingdom.

Animas LLC manufactures and distributes external insulin pumps for diabetes patients. The company was founded on November 5, 1996 and is headquartered in West Chester, PA.