Teradar

Teradar is a Boston deep-tech company building the first commercial sensor that sees using the terahertz band of the electromagnetic spectrum - the slice between microwave and infrared. Its solid-state Modular Terahertz Engine combines radar's ability to punch through rain, fog and snow with resolution approaching that of lidar, claiming up to 20x the detail of today's automotive radar with no moving parts. Founded in 2020 and out of stealth in November 2025 with a $150M Series B, Teradar is working with eight global automakers and Tier-1 suppliers and aims to put its sensor in a production vehicle by 2028.