FOI reference: FOI-2025-2609
You asked
I was wondering if an excel sheet of all SIC codes and grouping names which included all sub SIC codes could be shared?
We said
Thank you for your request.
On the ONS classification webpages we have an excel sheet that should meet your request. This is the Summary of Structure Worksheet which shows all levels of the SIC hierarchy.
Further information on UK SIC is detailed on our web pages, where we advise using both the Main Volume (with explanatory notes) alongside the Indexes to establish a unit's correct SIC code. There is also an interactive hierarchy.