iRhythm Technologies, Inc. engages in the development of monitoring and diagnostic solutions for detection of cardiac arrhythmias. It offers Zio XT, is a wearable patch-based biosensor, continuously records and stores ECG data from every patient heartbeat for up to 14 consecutive days; and Zio AT, also provides ECG data but also provides physicians with actionable notifications during the wear period. Read More The company was founded by Uday N. Kumar in September 2006 and is headquartered in San Francisco, CA.