The Global Industry Classification Standard (GICS) is an industry taxonomy developed in 1999 by MSCI and Standard & Poor's (S&P) for use by the global financial community. The GICS structure consists of 11 sectors, 25 industry groups, 74 industries and 163 sub-industries[1] into which S&P has categorized all major public companies. The system is similar to ICB (Industry Classification Benchmark), a classification structure maintained by FTSE Group.
GICS is used as a basis for S&P and MSCI indexes used in the financial field which each company is assigned to a sub-industry, and to an industry, industry group, and sector, by its principal business activity. "GICS" is a registered trademark of McGraw Hill Financial and MSCI Inc.[2][3]