Groupe Tera SA, together with its subsidiaries, engages in the analysis of chemical air pollutants in France and internationally. It offers toxicology and environmental analysis laboratory services; develops, industrializes, and markets sensors to measure air quality in real-time; and develops applications for real-time analysis of air quality. The company also offers air and respiratory protection technologies and devices for the treatment of respiratory viruses. Groupe Tera SA was founded in 2001 and is headquartered in Crolles, France.