NACE code, also known as the Nomenclature of Economic Activities, is a classification system used to categorize businesses and economic activities based on their primary function. Developed by the European Union, this code provides a standardized way to identify and compare industries across different countries. It consists of a series of four-digit codes that represent specific sectors and sub-sectors of the economy, allowing for easier analysis and reporting of economic data. NACE code is an essential tool for understanding the structure and trends of the global economy, and is widely used by governments, businesses, and researchers alike.