How to Convert NAICS Codes to SIC Codes
Enter a NAICS code or keyword in the search box above to find the corresponding SIC code or codes.
Because SIC is a legacy classification system, some NAICS codes may map to broader SIC categories. Review SIC definitions and grouping logic to determine the most appropriate classification for your use case.
NAICS to SIC Crosswalk
The NAICS to SIC crosswalk provides a reference for translating modern NAICS classifications into legacy SIC codes used in historical datasets and older reporting systems. Mappings are provided for reference and comparison purposes and should be validated based on classification scope and intended use.
NAICS to SIC Code Mapping
Each NAICS Code is mapped to one or more SIC Codes. Perhaps you are aware of your NAICS Code but per requirements, need the corresponding SIC Code. The NAICS to SIC Code mapping tool makes this process easy.
NAICS to SIC Conversion Table
After completing a search using the NAICS to SIC Conversion Tool, the results display NAICS codes in the left column and mapped SIC codes in the right column. Select any code in the table to open the detailed code page for definitions, industry scope, and contextual guidance.