The National Center for Science and Engineering Statistics (NCSES) is the principal federal agency for producing data on science, technology, engineering, and mathematics (STEM) activities in the United States. Operating within the U.S. National Science Foundation, NCSES collects and reports official statistics on research and development (R&D) expenditures, the STEM workforce, innovation indicators, research institutions, and related trends across the public and private sectors.

The NCSES website provides access to interactive data tools, downloadable datasets, analytical reports, and methodological documentation. Its data support research, policy analysis, and planning on topics such as national competitiveness, research capacity, workforce development, and technological change, and are widely used by policymakers, academic researchers, and industry analysts.

NCSES Data Tools is the National Center for Science and Engineering Statistics’ suite of interactive interfaces for accessing science and technology statistics. It provides search, visualization, and download options for data on research and development, STEM employment, innovation, and related indicators. These tools support analysis and exploration of U.S. science and engineering trends for research, policy, and planning.

NCSES Data Explorer is an interactive platform from the National Center for Science and Engineering Statistics for searching, visualizing, and downloading federal science and engineering data. It allows users to explore statistics on research and development spending, STEM workforce characteristics, innovation metrics, and other key indicators. The tool supports researchers, policymakers, and analysts in generating custom views, tables, and charts to inform science and technology research and decision-making.