SpaceNet LLC is a nonprofit organization dedicated to accelerating open source, artificial intelligence applied research for geospatial applications, specifically foundational mapping. SpaceNet is run in collaboration with In-Q-Tel CosmiQ Works, Maxar Technologies, Intel AI, Amazon Web Services (AWS), Capella Space, and TopCoder. SpaceNet maintains four strategic pillars: (1) open sourcing high quality curated labeled remote sensing data sets; (2) host structured data science challenges on TopCoder; (3) open sourcing the code for the winning artificial intelligence models as well as foundational software; and (4) providing robust evaluation of both data set and models. To date, SpaceNet has generated one of the largest open source geospatial data sets and has hosted 5 data science challenges. More information is available at: www.spacenet.ai.