The National Geospatial-Intelligence Agency (NGA) is a combat support agency of the United States Department of Defense.
NGA provides timely, relevant, and accurate geospatial intelligence in support of USA national security.
Its primary mission is collecting, analyzing, and distributing geospatial intelligence (GEOINT) in support of national security. NGA was formerly known as the National Imagery and Mapping Agency (NIMA). In addition, NGA is a key component of the United States Intelligence Community.
The NGA Commercial Archive Data
The National Geospatial-Intelligence Agency (NGA), in partnership with the Civil Applications Committee (CAC), of which NASA is a member, provides access to its immense archive of unclassified commercial high-resolution satellite data to non-DOD government agencies under terms of its NextView contract. See this website.