Top 4 Continuous Glucose Monitoring Companies in the U.S.

Continuous Glucose Monitoring: Dexcom, Medtronic, Abbott, and Senseonics act as the leaders

Within the glucose monitoring market, continuous glucose monitoring (CGM) is a way for patients to continually measure their glucose levels in different settings. Four companies compete to gain a dominant stance within the U.S. continuous glucose monitoring market. The ranking of each company along with their product offerings and associated segments are discussed within this blog, keep reading to find out more about the top competitors within the continuous glucose monitoring market.

What is continuous glucose monitoring, and how does it work?

Continuous glucose monitoring (CGM) allows for a more accurate reading of how blood glucose levels fluctuate throughout the day by measuring interstitial glucose levels continuously and estimating blood glucose levels based on these readings. Typically, a continuous glucose monitoring system consists of three components: glucose sensors, transmitters, and receivers. Sensors are inserted under the skin into the interstitial fluid. Transmitters retrieve the glucose reading from the sensor and wirelessly transmit it to a hand-held receiver. Then, if glucose levels are too high, the receiver warns the patient. 

What does the continuous glucose monitoring market consist of?

Overall, the continuous glucose monitoring market includes both personal and professional devices. Individuals who require personal CGM’s use them daily. The total personal CGM market includes durable receivers and transmitters, as well as consumable sensors. Personal CGM devices have been available in the U.S. market for over ten years, and, since their introduction, they have experienced a consistent trajectory of growth and technological innovation.

Physicians use professional CGM’s in retrospective sessions where a patient wears a CGM sensor for several days, unable to view the real-time data, and must adhere to frequent self-monitoring of blood glucose. The total professional CGM markets include durable systems and transmitters, as well as consumable sensors. Professional CGM devices have been available in the U.S. since 1999 and have significantly improved in terms of accuracy, device size, and usage life.

Who are the top CGM companies?


Dexcom has previously been the market leader in terms of market share. The company maintained a dominant position in the personal continuous glucose monitoring market, primarily attributed to the strong performance of the G6®. Dexcom was also able to maintain a strong position in the professional CGM market. 

Dexcom’s products include the G6® sensors with a labeled usage life of ten days, the G4® sensors with a labeled usage life of seven days, and the G6® and G5® transmitters with a labeled usage life of three months. Dexcom acquired TypeZero Technologies, which is the manufacturer of the inControl™ diabetes management system. 


In the past, Medtronic has been able to hold the second-leading position within the overall continuous glucose monitoring market and the dominant position in the professional CGM market. Medtronic offers their MiniMed® 670G, an integrated CGM pump that automatically adjusts basal insulin delivery based on glucose readings measured every 5 seconds. 

Medtronic also offers the iPro®2, which is a professional CGM system, used in retrospective clinical studies. Both type 1 and type-2-diabetics whose physicians wish to monitor their glucose levels more closely use the iPro®2. 


Abbott, in comparison to Dexcom and Medtronic, does not maintain significant market shares. However, the company is the third leading competitor within the professional CGM market.

Abbott offers its FreeStyle Libre Pro™. This device excludes the finger prick calibration and eliminates the regular training process that physicians must perform. The sensor within the FreeStyle Libre Pro™ records glucose levels every 15 minutes and can be worn for up to fourteen days.


Similar to Abbott, Senseonics doesn’t occupy the majority of the overall market. However, the company does rank as the third leader in the personal continuous glucose monitoring market. 

Senseonics offers its Eversense® 90-day implantable sensor. The 90-day implantable sensor accompanies the company’s rechargeable Bluetooth®-enabled transmitter and a smartphone app that receives data from the transmitter.  

Want further insights?

iData’s report on glucose monitoring offers a subsection on the continuous glucose monitor market. In addition, iData offers custom research and consulting services. These custom reports implement unique strategies to fulfill, not only the gap in the research you need, but also the hidden insights into potential markets you wish for.


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