With a NAICS number you can compare similar companies across an industry by using Canadian Industry Statistics (CIS) on Industry Canada's Strategis. For example, using NAICS 33711 - Wood Kitchen Cabinet and Countertop Manufacturing you can compare your company with the same classification to others (peers) in the Canadian industry.
Some areas of comparison on CIS include:
The North American Industry Classification System (NAICS) is the standard used by federal statistical agencies in Canada, U.S., and Mexico for classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy.
The Standard Industrial Classification (abbreviated SIC) is a United States government system for classifying industries by a four-digit code. Established in 1937, it is being supplanted by the six-digit North American Industry Classification System (NAICS code) that was initially released in 1997. Certain government departments and agencies, such as the U.S. Securities and Exchange Commission (SEC), still use the SIC codes (so it still has some popularity and value in terms of the stock market in North America.
Concordances are often used to translate SIC codes to NAICS. See "Concordances between industry classifications" for more.