Union Labs is a deeptech seed-stage venture capital firm founded in 2018 and based in San Mateo, California. It invests in pre-seed and seed founders applying advanced technologies including AI, robotics, IoT, and autonomous systems to address challenges in areas such as climate tech, manufacturing, healthcare, and industrial automation. The firm was incubated at Kleiner Perkins with support from Google Ventures and is led by founder and managing partner Nate Williams.