The space industry is commonly divided into four sectors: civil, defense, intelligence and commercial. Although these sectors operate programs largely independent of one another, they do share an industrial base, a workforce and infrastructure.
Often, the defense and intelligence sectors are jointly referred to as “national security space.” Civil space includes all non-defense government space activities, primarily those of the National Aeronautics and Space Administration (NASA) and the National Oceanic and Atmospheric Administration (NOAA).
The defense sector refers primarily to Department of Defense (DoD) activities in support of the warfighter.
The intelligence sector encompasses all space-based or space-enabled intelligence capabilities that support national interests.
Commercial space is generally segmented into satellite manufacturing, launch vehicle manufacturing and services and satellite operations and services. The commercial sector includes prime contractors, entrepreneurial space companies and emerging markets for space capabilities.
For more information about space industry sectors, please refer to The Space Report: The Authoritative Guide to Global Space Activity.