ATMO, formerly known as Atmotube, makes air quality and environmental monitoring products, including the Atmotube personal air pollution monitor and the Atmocube indoor environmental tracking system. Its products are used across B2C, B2B, and B2G settings, and its customers include homes, offices, universities, transport hubs, and public spaces. It was founded in 2016 by a team of hardware and software engineers and is headquartered in San Francisco. Its technology is real-time local sensing that sends hyperlocal air-quality data to a public map.