Planet Lab has a synthetic aperture radar (SAR) satellite program. Planet Lab received a NOAA license to collect synthetic aperture radar (SAR) imagery on 12 April 2018. Planet also received a FCC license April 5th 2018. There is no indication that Planet has built (or is building) a SAR satellite or if Planet has a launch date.
The NOAA license reads:
“The Commercial Remote Sensing Regulatory Affairs Office of the National Oceanic and Atmospheric Administration (“NOAA CRSRA”), an agency of the Department of Commerce, granted an amended license to Planet Labs Inc. (“Planet”) to operate a private, commercial, space-based, remote sensing system consisting of up to 6 SWIFT satellites that make up the Planet SWIFT constellation. The SWIFT satellites are licensed to collect synthetic aperture radar imagery of the Earth’s surface and will operate at 350-650km altitude orbits.”