The University of St. Thomas

SIC and NAICS Codes

NAICS and SIC Industry Codes

  • North American Industry Classification System: NAICS.
    The North American Industry Classification System (NAICS) supersedes the U.S. Standard Industrial Classification System (SIC.) You can search by keyword, and there are tables to convert from SIC to NAICS and NAICS to SIC.
  • Standard Industrial Classification: SIC. 
    This site uses the 1987 SIC manual; you can search by keyword, or browse by category. It is superseded by NAICS, although some sources still use the SIC codes. 

   

Finding industry codes and ratios for a company

(Note: companies that do more than one type of business may have multiple codes)

  • Business and Company Resource Center. (UST subscription database)
    One of the easiest ways to find ratios for a specific company. Do a company search; SIC and NAICS codes will be listed in the Company Profile. You can also look at the Investment Reports tab. Investment reports can give multiple SIC codes, and some of the reports will contain ratios that have already been calculated.
  • Factiva. (UST subscription database)
    Under Companies/Markets tab, then choose Company. Primary SIC and NAICS codes will be in the Company Snapshot. Look under Financial Results for key financial ratios for the company. Look under Reports for a Ratio Comparison Report to compare the company's ratios to the industry.
  • Lexis/Nexis Business. (UST subscription database)
    Search by company name or ticker symbol. Primary SIC and NAICS codes will be in the Snapshot. Choose Financial Information from the left-hand margin and scroll down for the Ratio Analysis section, including key ratios for the company (generally three years' worth.) 
  • Mergent Online. (UST subscription database)
    Search by company name or ticker symbol. Provides primary as well as multiple SIC and NAICS codes for a company (under Business tab.) Gives up to 30 annual ratios by company; you can calculate your own ratios from the ten years of annual report information.
  • Reference USA. (UST subscription database)
    Directory database which lists multiple six-digit SIC codes and multiple NAICS codes for a company.
  • Standard & Poor's Industry Surveys. (UST subscription database) also Ref. HG 4961 .St24
    Covers over 50 industries. While it does not include SIC and NAICS codes, e ach industry section has a Comparative Company Analysis section which reports key ratios for selected companies in the industry.
  • Value Line. (UST subscription database.) Also paper copies at Keffer and OSF Libraries.
    While it does not include SIC and NAICS codes, the Ratings and Reports section provides a few ratios for each company. Generally Value Line provides the numbers, but you will have to compute the ratios manually.  
  • Yahoo Finance Stock Research Center.
    Company records include many ratios, and selecting industry from within a company record will give you selected industry-level ratios.

See also:

Research consultations


Professional reference service is available at both the St. Paul and Minneapolis campus libraries. If you are interested in a research consultation, contact:

Ryan Carter, Minneapolis, (651) 962-4646, cart1589@stthomas.edu
Marianne Hageman, St. Paul, (651) 962-5404, mdhageman@stthomas.edu
Eric Kallas, St. Paul, (651) 962-5013, epkallas@stthomas.edu
Andrea Koeppe, Minneapolis, (651) 962-4647, arhudson@stthomas.edu
Janice Kragness, Minneapolis, (651) 962-4645, jlkragness@stthomas.edu 

Updated July 2009 mdh