Data sources
US federal government data is in the public domain. UK data from ONS and Companies House is used under the Open Government Licence v3.0.
- US Census Bureau: 2022 NAICS structure
- US Census Bureau: 2022 NAICS descriptions
- US Census Bureau: 2022 NAICS index file
- naicsCrossReferences
- US SBA: table of small business size standards
- US Census Bureau: 2022 to 2017 NAICS concordance
- US Census Bureau: 2017 NAICS to ISIC Rev. 4 concordance
- Companies House: condensed SIC 2007 list
- ONS: UK SIC 2007 summary of structure
- ONS: UK SIC 2007 indexes
- ONS: SIC 2007 to SIC 2026 correspondence table
Read about how we process these files.