GReD is a Politecnico di Milano spin-off SME that studies, designs and implements innovative and highly customized solutions based on geomatic technologies. GReD is characterized as a center of excellence focused on Research and Development, professional advice and algorithmic elaboration for the creation of state-of-the-art solutions based on geomatic technologies in the following application areas: - advanced surveying and cartographic applications, - augmented GNSS applications, - high precision and high resolution gravimetric applications, - space applications. R&D activities concern the maintenance of state-of-the-art internal skills and in particular the definition and development of products and services for: - high precision GNSS navigation and positioning, - high precision and high resolution gravimetric maps determination.