isardSAT is an R&D SME founded in 2006 , headquartered in Barcelona (Catalonia), with a subsidiary, isardSAT Ltd., based in Guildford (UK), with the mission to improve the knowledge of our planet Earth through remote sensing. We carry out scientific and technological projects, developing on-board and on-ground algorithms with special attention to altimetry and passive microwave missions. Our work ranges from prototyping algorithms for data processing to calibration after launch and implementation of operational processors. With these data, we also perform studies for scientific applications around different hydrological challenges. We apply our scientific and technological knowledge to create climate data services, bridging the gap between science and decision-making.Ā