Istat

[S] - Small and medium enterprise survey -SME (including professional and artistic activities)
Territorial classifications () from 31/12/1998 to 31/12/2016 Regional Thematic classifications () from 31/12/2008 to 31/12/2016 Ateco 2007, Istat Classification of economic activity: classes (4-digit numerical codes) from 31/12/2002 to 31/12/2007 Ateco 2002, Istat Classification of economic activity: classes (4-digit numerical codes)