ATECOItaly2025

Classificazione delle Attività Economiche

Italy’s official economic activity classification, maintained by Istat. ATECO 2025 adopts NACE Rev. 2.1 wholesale at its first four levels and adds Italian 5th- and 6th-level detail (categories and subcategories).

Browse structure Search ATECO

ISIC NAICS NAICS Canada SCIAN SIC UK SIC NACE ATECO NAF WZ NIC ANZSIC JSIC ICNEA KSIC SSIC HSIC

How an ATECO code is built

Each digit narrows the activity from the broadest sector down to a specific national industry. Here's how 01.11.00 decomposes:

A · 01.11.00

SectionAgriculture, forestry & fishing

DivisionCrop & animal production

01.1

GroupGrowing of non-perennial crops

01.11

ClassGrowing of cereals

01.11.0

CategoryGrowing of cereals

01.11.00

SubcategoryGrowing of cereals

Structure at a glance

Level	Digits	Count	Example
Section	Letter	22	A Agriculture, forestry and fishing
Division	2-digit	87	01 Crop and animal production
Group	3-digit	287	01.1 Growing of non-perennial crops
Class	4-digit	651	01.11 Growing of cereals
Category	5-digit	920	01.11.0 Growing of cereals
Subcategory	6-digit	1,290	01.11.00 Growing of cereals

Browse sections

AAgriculture, Forestry and Fishing BMining and Quarrying CManufacturing DElectricity, Gas, Steam and Air Conditioning Supply EWater Supply; Sewerage, Waste Management and Remediation Activities FConstruction GWholesale and Retail Trade HTransportation and Storage IAccommodation and Food Service Activities JPublishing, Broadcasting, and Content Production and Distribution Activities KTelecommunication, Computer Programming, Consulting, Computing Infrastructure and Other Information Service Activities LFinancial and Insurance Activities MReal Estate Activities NProfessional, Scientific and Technical Activities OAdministrative and Support Service Activities PPublic Administration and Defence; Compulsory Social Security QEducation RHuman Health and Social Work Activities SArts, Sports and Recreation TOther Service Activities UActivities of Households as Employers and Undifferentiated Goods - and Service-Producing Activities of Households For Own Use VActivities of Extraterritorial Organisations and Bodies

History

ATECO has tracked the European NACE standard since 1991. The 2025 edition aligns Italy with NACE Rev. 2.1, introducing nearly 950 new codes and retiring over 300 obsolete ones.

Usage & importance

Required for Italian business registration (Registro Imprese), tax filings and Istat statistics. Its first four levels are exactly NACE Rev. 2.1, so European conversions are one-to-one by construction.

Revision timeline

1991

ATECO 1991

First NACE-aligned edition

2007

ATECO 2007

NACE Rev. 2 alignment

2025

ATECO 2025

Current edition (NACE Rev. 2.1)

Convert ATECO codes to any other system

Verified crosswalks between ATECO and the other sixteen systems, both sides clickable.

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