Dexcom
Revenue: $2.8 billion
Market Cap: $45 billion
Rank: 41

Dexcom has been at the forefront of diabetes for a while now with its continuous glucose monitor sensors. The San Diego, CA-based company is the very definition of a diagnostics firm as its G7 sends real-time glucose readings automatically to a compatible smart device or receiver and no fingersticks are required. Dexcom G7 also offers a suite of customizable alerts that can warn of high or low glucose levels and help users spend more time in range.

Check out a complete listing of MD+DI's Top 100 Medical Device Companies.