LibGuides: Library Guide for Illinois Sustainable Technology Center (ISTC) Staff: Find company information

Company research

The University of Illinois' STEM Entrepreneurship & Business program has a wealth of information available for locating company information.

Three easy steps to find company information
Company research Provides an overview of the process for searching company information.
BISIllinois Business Database tutorials Videos include: Intro to Business Research; ABI Inform; PrivCo; Nexis Uni; Hoover's; Statista; and Corporate Affiliations.

Finding NAICS codes

To locate NAICS information for individual companies, search using company research databases. Use the links below to locate NAICS information for specific industry sectors or subsectors.

NAICS concordances These tables provide detailed descriptions of the direct relationships between NAICS and SIC classification systems, as well as the relationships between different versions of NAICS.
NIACS search The North American Industry Classification System (NAICS) is the standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy. This official U.S. Government Web site provides the latest information on plans for NAICS revisions, as well as access to various NAICS reference files and tools.
Enforcement and Compliance History Online (ECHO) ECHO includes NAICS information for companies listed in the database.

Company research databases

Company research databases comparison chart A guide from the STEM & Entrepreneurship program. Includes a comparison of the content of different databases that contain company information as well as help with searching specific databases.

Frequently used for locating companies by industry sector

Hoover's Academic Pro This link opens in a new window If you get an error message when trying to connect to Hoover's off campus, please try an incognito window. Delivers company, executive officer, and industry information in a searchable database. Includes parent, subsidiary, branch and competitor information.
Nexis Uni This link opens in a new window Features more than 15,000 news, business and legal sources, including U.S. Supreme Court decisions dating back to 1790. Includes current news, business information, company directories, federal and state laws, regulations, legal cases, and more.