Industry classification codes allow you to identify, define and categorize industries. You can use them in many databases to find information by industry. It is important to know the industrial classification coed for your industry research especially if you are searching for a small industry. There are many systems that classify business entities differently. The main purpose of these codes are for statistical purposes and in databases as part of the indexing. .
CUSIP Global Services A CUSIP is a unique identifier for financial securities in North America. It's a nine-character code that's alphanumeric or numeric. CUSIP stands for Committee on Uniform Securities Identification Procedures.
ISIN Organization: international securities identification ISIN stands for International Securities Identification Number. It's a 12-character code that identifies a financial instrument, such as a stock or bond, globally. ISINs are used to facilitate the settlement and reporting of trades.
International Standard Industrial Classification (ISIC): maintained by the U.N. Statistics Division, the ISIC is used in a number of international databases, such as ILO's LABORSTA. Rev.4 is the current version. See link on sidebar at this site to other available classifications.
North American Industry Classification System (NAICS): Adopted in the 1990s by the U.S., Canada, and Mexico to categorize industries. Replaced the SIC system (see below).
Standard Industrial Classification (SIC): SIC is a four-digit classification system developed in the 1930's for use by the U.S. federal government. Although still used in some databases, the SIC classification system is no longer being revised.