You should identify the industry that your company operates in by using a standard industry classification code such as NAICS.
What is NAICS?
You should first look up the NAICS Canada code, which is used mainly in Statistics Canada databases and publications. You can search by keyword or browse by sector.
As some Business Library Databases use the US version of the NAICS manual, it is also helpful to be able to cross-reference your NAICS code there, as the numbers can be slightly different. In addition, as the US economy is vastly larger than the Canadian, they have a more comprehensive classification system. You can use the keyword search to identify relevant codes, or browse NAICS by sector.
The previous standard industry classification system used in the United States (US SIC) is still used in a few databases and statistical publications. It has not been updated since 1987, and so it does not reflect the current economy. However, if you encounter a 4 digit industry code, and it doesn't make sense as a NAICS code, it may actually by a US SIC code. You can find the 1987 Standard Industry Classification manual online on the US Department of Labor OSHA website.
The ISIC classification was developed by the United Nations and is used in UN statistical publications and databases such as UNdata and the Industrials-Canada industry profiles in Passport GMID from Euromonitor.
Several other types of industry classification systems are also in use, particularly in the financial sector.