A Standard Industrial Classification (SIC) was first introduced into the UK in 1948 for use in classifying business establishments and other statistical units by the type of economic activity in which they are engaged.
The classification provides a framework for the collection, tabulation, presentation and analysis of data, and its use promotes uniformity.
In addition, it can be used for administrative purposes and by non-government bodies as a convenient way of classifying industrial activities into a common structure.
Since 1948 the classification has been revised in 1958, 1968, 1980, 1992, 1997, and 2003.
|Main Volume (1.29 Mb Pdf)|
|Summary of Structure (191 Kb Excel sheet)|
|Index, Alphabetical and Numerical (1.6 Mb Pdf)|
|Index alphabetical with addendum (September 2014) (1.85 Mb Excel sheet)|
|Index numerical with addendum (September 2014) (1.57 Mb Excel sheet)|
|Interactive SIC Hierarchy|
|Previous Revisions and correlations (1.84 Mb Excel sheet)|
|Correlation between UK SIC 2003 and UK SIC 2007 (182.5 Kb Excel sheet)|
|Weighted Tables with percentages UK SIC 03 - UK SIC 07 (282 Kb Excel sheet)|
|Weighted Tables with percentages UK SIC 07 - UK SIC 03 (279 Kb Excel sheet)|
For help and enquiries please contact:
Email: Classifications Helpdesk
Tel: +44 (0)1329 444970
Office for National Statistics
Classifications and Harmonisation Unit