iRhythm Technologies Inc is a commercial-stage digital healthcare company redefining the way cardiac arrhythmias are clinically diagnosed by combining wearable biosensing technology with cloud-based data analytics and machine-learning capabilities. The company's portfolio includes ambulatory cardiac monitoring services on a platform, called the Zio service, which combines an easy-to-wear and unobtrusive biosensor that can be worn for several days with powerful proprietary algorithms that distill data from millions of heartbeats into clinically actionable information. The company derived its revenue from the United States.