Satrec Initiative Co., Ltd. (Korean: 쎄트렉아이) or Satrec i or SI is a South Korean satellite manufacturing company headquartered in Daejeon, South Korea The company was founded in 1999 by the engineers who developed the first Korean satellite (KITSAT-1) at KAIST Satellite Technology Research Center (SaTRec). The company designs and builds Earth observation satellites called SpaceEye-series, and it provides various space components, including high resolution electro-optical payloads and star-trackers. SI's first satellite was a Malaysian Earth observation satellite, RazakSAT launched in 2009. SI has two subsidiaries: SI Imaging Services (SIIS) is the exclusive image data provider of KOMPSAT-series, and SI Analytics (SIA) provides AI-native GEOINT solutions for satellite imagery. SI also spun-off SI Detection (SID), which provides radiation monitoring solutions. History Satrec Initiative was founded in Daejeon, South Korea in 1999. There are two subsidiaries established based on SI's business in the remote-sensing satellite. One is SI Imaging Service (SIIS) founded in 2014, and they provide very high resolution optical and SAR images obtained from KOMPSAT-series and DubaiSat-2. Second subsidiary is SI Detection, and they develops and provides state-of-art radiation detectors derived from spacecraft radiation detecting systems. Satellites and launches KOMPSAT-1 (1999): image receiving and processing station STSAT-1 (2003) KOMPSAT-2 (2006): image receiving and processing station RazakSAT (2009): satellite & ground systems DubaiSat-1 (2009): satellite & ground systems COMS-1 (2010): communication payload integration, electrical modules, sun sensor, image receiving and processing station, and mission control subsystems RASAT (2011): EO payload & attitude sensors X-Sat (2011): EO payload KOMPSAT-3 (2012): image receiving and processing station, mission control subsystems, and sun sensor Gokturk-2 (2012): EO payload KOMPSAT-5 (2013): fixed/mobile image receiving and processing station, mission control subsystems, SAR simulator, and sun sensor DubaiSat-2 (2013): satellite & ground systems Deimos-2 (2013): satellite & ground systems KOMPSAT-3A (2015): fixed/mobile image receiving and processing station and sun sensor TeLEOS-1 (2015): EO payload Velox-C1 (2015) KhalifaSat (2018): electric modules, telescope, and image receiving and processing station GEO-KOMPSAT-2A/B (2018/2019): electric modules, space weather sensor, image receiving and processing station, and mission control subsystems Platforms SpaceEye-X SpaceEye-X is a satellite bus, which was originally designed to carry very high resolution optical payload(<0.5 m resolution). SpaceEye-X provides the capability to accommodate various payloads, including SAR antennas. SpaceEye-1 SpaceEye-1 is an improved model and advanced variant of the SI-300 satellite bus, which was the platforms of DubaiSat-2 and DEIMOS-2. Current model is optimized for Earth observation purposes (<1 m resolution).