Arcsec was founded in 2020 as a spinoff company of the University of Leuven. We develop high accuracy attitude determination and control systems for small satellites. At arcsec we have a strong focus on quality. Products are tested to high standards regarding vibrations, shock, radiation and thermal aspects. All flight models are assembled and tested within our cleanroom facility. We support our customers to integrate our products in their spacecraft. Arcsec partners with ESA to develop the next generation attitude control systems. Arcsec received support from the European Innovation Council to develop space debris detection capabilities for their star trackers, under the DeDUST project, short for Debris Detection Using Star Trackers.