Skip to Main Content

Library update: Recent database changes

Learn more

Industry, Company & Market Analysis Research Guide

Provides comprehensive information in the major areas of business research.

Finding NAICS/SIC Codes by Company

NAICS/SIC Discrepancies

While the descriptions and definitions of NAICS/SIC codes are standardized, the application of a particular code to a particular entity is not. Individual companies can choose their primary NAICS/SIC codes at their own discretion, and research firms may sort companies by varying codes based on their own criteria for analysis. Searching by NAICS or SIC in different databases may produce lists of different companies and competitors.

Finding Industry Classification Codes by Industry

Industry Classification Codes define or classify industries based on what they do and how they do it. Links to resources for the two industry codes most commonly used in the United States (NAICS and SIC) are listed below:

NAICS/SIC Descriptive Tree Breakout

Knowing the full breakout will help you understand what level of analysis the Industry Research Reports, Financial Ratios, etc. are providing:

2007 NAICS codes and descriptions/definitions

  • Sector (2-digit)
  • Subsector (3-digit)
  • Industry Group (4-digit)
  • Industry (5-digit)
  • U.S. Industry (6-digit)

1987 SIC codes and descriptions/definitions

  • Division (A-J)
  • Major Group (2-digit)
  • Industry Group (3-digit)
  • Establishment (4-digit)