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Overview

Registry

REA (Repertorio Economico Amministrativo)Provincial trade registers maintained by Italian Chambers of Commerce (CCIA)
Italian company data is sourced from the Repertorio Economico Amministrativo (REA), the provincial business register. Each Italian province has its own Chamber of Commerce (Camera di Commercio - CCIA) that maintains a register of companies within its jurisdiction. The REA number (province code plus registration number) is the unique primary identifier for API requests; the Codice Fiscale (national tax code) is not unique per company and must not be used for profile or filing orders.

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Company Identifiers

Use REA for all profile and filing requests. The Codice Fiscale is not unique and may be shared by related companies. Lite and Enhanced profile orders using Codice Fiscale may fail; filing search is not supported with Codice Fiscale. Always use the REA identifier from the search response.

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Search Capabilities

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Data Availability

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Implementation Notes

Use search response data for API calls. Use the company identifier (REA) from the search response for all Lite Profile, Enhanced Profile, and Filings Search requests. Include the registration authority code (province code) as the RegAuth query parameter where supported; it is optional for Italy but recommended.

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Identifier handling

  • The primary company identifier in API responses is the REA number (e.g. MI123456).
  • For secondary identifiers (Codice Fiscale, VAT), use the otherIdentifiers array in Lite and Enhanced profile responses, with type codes IT_TAX_CD and IT_VAT_CD.
  • Systems that store Italian company identifiers should store and use REA. Do not rely on Codice Fiscale for lookups or ordering.

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Province code reference

REA numbers begin with a two-letter province code. Each province has its own Chamber of Commerce (CCIA). Below is the reference for province codes used in the REA format.