The Radio Occultation and Heavy Precipitation experiment aboard the PAZ Low Earth Orbiter, is a joint effort between the Institute of Space Sciences (ICE) and the company HISDESAT, which owns and operates the satellite. The ICE is an Institute of the Spanish National Research Council (CSIC) and a unit of the Institute for Space Studies of Catalonia (IEEC).
The funding to bring RO capabilities to PAZ comes from the former Spanish Ministry of Science and Innovation's projects ACI2009-1023 and ACI2010-1089, and the Spanish Ministry of Economy's AYA2008-05906-C02-02 and AYA2011-29183-C02-02.
A significant part of the ground segment for the RO data is funded and operated by the North American National Oceanic and Atmospheric Administration (NOAA), with participation of the University Corporation for Atmospheric Research (UCAR).
Scientific aspects are also tackled in collaboration with NASA/Jet Propulsion Laboratory (JPL), through two NASA projects, from programs ROSES 2010 NRA 10-GEOIM10-0018 (A.21) and NRA NNH10ZDA001N (A.20), and in collaboration with the scientists of the ROHP-PAZ International Scientific Team.