Industry and country reports identify "company shares" of the market. Includes international companies. Restricted to UST students, faculty, and staff. Even on campus you must log in with your UST username/password.
Choose the Companies/Markets tab, then Company, and search. The nearest 10 competitors (by sales) are at the bottom, under Peer Group. For more competitors, choose Peer Comparison. Includes international companies. Limited to 6 simultaneous users.
Replaced the U.S. Standard Industrial Classification (SIC) system in 1997; it's a 5- or 6-digit number. You can search by keyword, and there are tables to convert from NAICS to SIC, and SIC to NAICS. The NAICS was developed jointly by the U.S., Canada, and Mexico to compare statistics about business activity across North America.
The U.S. government classified business activity according to the SIC system until the adoption of NAICS in 1997. It's searchable by code or by keyword. Some business sources still feature SIC code search options.
3-5 digit classification system for products produced by service industries in 12 NAICS sectors in the 48-49 through 81 divisions. Is a complement to NAICS and organizes products primarily by their use. Implementation started in 2007.