Dexcom

Dexcom: continuous glucose monitoring for diabetes

Dexcom is an American company dedicated to developing glucose biosensor technology. Its activity focuses on continuous glucose monitoring (CGM) systems that allow people to know their glucose levels in real time. The company states it has set the standard in glucose biosensing for 25 years.

Products and systems

Dexcom's catalog includes the Dexcom G7 and Dexcom G7 15 Day systems, presented by the company as the world's most powerful CGM systems. These devices send glucose readings to a phone or receiver in real time and are designed for all types of diabetes. The company also markets Stelo, an over-the-counter glucose biosensor that provides continuous information on how food, exercise, stress, and sleep affect the body. Stelo does not require a prescription and is eligible for flexible spending accounts (FSA) or health savings accounts (HSA).

Approach and track record

Since 1999, Dexcom has developed innovative technology that has transformed the way people manage diabetes and track their glucose. The company presents itself as a partner in users' journey, with the goal of enabling them to live confidently and take control of their health. Among its recent initiatives, in January 2026 it formed the Dexcom Customer Advisory Council to maintain direct dialogue with the people who use its products, and in April 2026 it conducted a survey of more than 3,000 people with type 2 diabetes and healthcare professionals in eight countries, the results of which are included in the State of Type 2 Report: Global Access and Attitudes to Diabetes Technology.

Safety and use information

The company publishes a brief safety statement warning that failure to use the continuous glucose monitoring system and its components according to the instructions, or failure to consider the indications, contraindications, warnings, and precautions, may result in missing a severe hypoglycemia or hyperglycemia event and making treatment decisions that cause harm. If CGM alerts and readings do not match symptoms, it is recommended to use a blood glucose meter to make treatment decisions. For Stelo, it is indicated to consult a healthcare professional before making medication adjustments and not to use the device if you have problematic hypoglycemia. The Stelo system is intended for people 18 years and older who do not use insulin.

Presence and contact

Dexcom operates internationally, with headquarters in the United States. The company offers customer service and support through its website, where it also publishes guides, resources, training, and videos. The telephone support hours indicated are Monday to Sunday, 5:00 a.m. to 5:00 p.m.

Location and contact

Phone: 844-607-8398