ThailandAirGradient builds open-source indoor and outdoor air quality monitors that track PM2.5, CO2, temperature, humidity and other pollutants. The company is known for its open hardware and firmware, letting users build, repair and integrate the monitors with platforms like Home Assistant and its own dashboard. AirGradient appeals to people who want transparent, data-driven air quality monitoring rather than a closed black box.
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United StatesLutron Electronics makes lighting controls and automated window treatments, from in-wall dimmers, switches and Pico remotes to whole-home systems such as Caseta, RadioRA 3 and HomeWorks QSX. Its wireless devices run on Lutron's own Clear Connect RF technology and pair with a Lutron smart hub, so the lights keep responding even when Wi-Fi is down. Caseta integrates with Alexa, Google Assistant, Apple Home, Ring and Sonos. Founded by Joel Spira, the company has been building light controls for more than 60 years.
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