The advanced 6U CubeSat platform builds upon the engineering expertise and subsystem heritage developed at ISIS over a decade. This form factor provides extra payload space complemented by state-of-the-art communications and attitude control systems. The 6-Unit platform enables ambitious military, commercial and scientific missions in domains such as Signals Intelligence (SIGINT), Geospatial Intelligence (GEOINT), Internet-of-Things services (IoT), air traffic monitoring (ADS-B), Earth Observation (EO) and Space Science. The ideal solution for tactical, communications and distributed science constellations, the 6-Unit answers demand for a reliable, high capability and full-featured CubeSat platform.