QuadSAT is a Danish company that is revolutionising the antenna diagnostics and measurement industry. Founded in 2017, QuadSAT has developed a world-first solution that utilises a custom RF payload integrated on a drone and proprietary software. As a compact system, this testing capability can be deployed in-field anywhere in the world. This results in a cost-effective, operationally flexible and time-saving solution to test RF applications and telecommunications infrastructure. QuadSAT serves various sectors, including space, telecommunication, and defence.