Dexcom is a medical device company that specializes in continuous glucose monitoring (CGM) systems for people with diabetes. The company was founded in 1999 and is headquartered in San Diego, California. Dexcom's CGM systems provide real-time glucose readings, allowing people with diabetes to better manage their blood sugar levels. The company's products include the Dexcom G6, G5, and G4 systems, as well as the Dexcom Share remote monitoring system. Dexcom has partnerships with several other companies, including Insulet and Tandem Diabetes Care. In 2020, Dexcom was named one of the world's most innovative companies by Fast Company.