Accuray Incorporated designs, develops, and sells radiosurgery and radiation therapy systems for the treatment of tumors in the body. It offers the CyberKnife System, a robotic stereotactic radiosurgery and stereotactic body radiation therapy system used for the treatment of various types of cancer and tumors in the body. The CyberKnife System automatically tracks, detects, and corrects for tumor and patient movement in real-time during the procedure, as well as enables delivery of precise, high dose radiation while patients breathe normally. It also offers the TomoTherapy System, which consists of an integrated and versatile radiation therapy system used for the treatment of a range of cancer types. The company markets its products in the United States directly, as well as through a sales agent and group purchasing organizations; and directly and through distributors and sales agents in Europe, Japan and other countries of Asia, South America, and internationally to hospitals and stand-alone treatment facilities. Accuray Incorporated was incorporated in 1990 and is headquartered in Sunnyvale, California.