US Census http://www.census.gov
Economic Census
http://www.census.gov/econ/census02/
Current Industrial Reports http://www.census.gov/cir/www/
International
Trade Administration - Trade Development http://www.ita.doc.gov/td/td_home/tdhome.html
County Business
Patterns http://www.census.gov/epcd/cbp/view/cbpview.html
Zip Code Business
Patterns http://censtats.census.gov/cbpnaic/cbpnaic.shtml
NC Dept.
of Commerce Industry Profiles http://cmedis.commerce.state.nc.us/industryprofiles/
North American Industry
Classification System (NAICS) http://www.census.gov/epcd/www/naics.html
Standard Industrial
Classification(SIC) http://www.osha.gov/oshstats/sicser.html
