NAICS is the standard used by federal statistical agencies for classifying business establishments in order to collect, analyze, and publish statistical data related to the U.S. business economy.
UNIDO is the specialized agency of the United Nations that promotes industrial development for poverty reduction, inclusive globalization and environmental sustainability.
The Bureau of Labor Statistics of the U.S. Department of Labor is the principal federal agency responsible for measuring labor market activity, working conditions, and price changes in the economy.