Skip to Main Content


The DiMenna-Nyselius Library is open. To learn more about our resources and services, visit the link below

More details here.

ECON 3270 Engineering Economics - Nantz

Finding Industry Information

SIC and NAICS Codes

Every industry is assigned a four-digit SIC code, so all companies in the same industry will have the same code. A company may have more than one SIC code if they are in different segments of industry, but usually only one or two are considered the primary SIC codes.

The NAICS system of six-digit numbers is replacing the SIC system. Many of our business databases, such as Business & Company Resource Center, will list the codes for a particular company or industry.

  • North American Industry Classification System

    Includes SIC codes.
    Ref HF1042 .N6 2012
    Ask for this at the Library Services and Information Desk.
  • Standard Industrial Classification Manual
    Ref HF1042 .S73 1987
    Ask for this at the Library Services and Information Desk
    Online SIC CODES Search

Finding Industry Information

Getting reliable statistics on a company's competitors or industry is an important part of determining the financial standing of any company. The following sources may help:

Ask a Librarian

Profile Photo
Research Librarians
JavaScript disabled or chat unavailable.
DiMenna-Nyselius Library
Fairfield University

Schedule a research appointment
CALL 203.254.4000 ext. 2188 or TEXT 203.295.7542