'''Centiare''' directory portals are based on 2002 [[North America Industry Classification System]] (NAICS) sectors. NAICS replaced the U.S. Standard Industrial Classification (SIC) system and was developed jointly by the U.S., Canada, and Mexico to provide new comparability in statistics about business activity across North America. The twenty (20) primary sectors are listed as follows: | '''Centiare''' directory portals are based on 2002 [[North America Industry Classification System]] (NAICS) sectors. NAICS replaced the U.S. Standard Industrial Classification (SIC) system and was developed jointly by the U.S., Canada, and Mexico to provide new comparability in statistics about business activity across North America. The twenty (20) primary sectors are listed as follows: |