National Institute of R&D for Optoelectronics (INOE) was established in 1996 and is involved in fundamental and applied research in optoelectronics, analytical chemistry, and high pressure physics. INOE is a non-profit, independent research institute, under the coordination of the Romanian Ministry for Education. The five departments in INOE focus on different applications of optoelectronics (new materials, laser-based instruments, art restoration, bio-medical and environment applications). The Remote Sensing Department operates a complex research infrastructure and has multidisciplinary expertise spanning from laboratory/in-situ chemical analysis to Earth Obsevation (EO) techniques and applications. It contributes to the joint European and global climatological database as part of international networks (EARLINET, AERONET, MWRNET, ACTRIS), coordinates the Romanian Atmospheric 3D research Observatory (RADO), and leads the Romanian initiative for ACTRIS research infrastructure ACTRIS-RO.