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

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.

Companies and environmental justice communities

The U.S. EPA tools below will help you identify companies that are in or adjacent to underserved communities.

EJSCREEN EJScreen is an environmental justice mapping and screening tool that provides EPA with a nationally consistent dataset and approach for combining environmental and demographic indicators. EJScreen users choose a geographic area; the tool then provides demographic and environmental information for that area. All of the EJScreen indicators are publicly-available data. EJScreen simply provides a way to display this information and includes a method for combining environmental and demographic indicators into EJ indexes.
P2 EJ Facility Mapping Tool The P2 EJ Facility Mapping Tool helps prospective P2 grant applicants, grantees and interested stakeholders geographically target facilities in or adjacent to underserved communities within the framework of the P2 program’s five industrial sector-based National Emphasis Areas (NEAs). The tool allows users to identify industrial facilities that may be contributing to pollution levels in a selected area, including communities with environmental justice (EJ) concerns.