IE · Companies Registration Office

Ireland company data from the Companies Registration Office, in your AI assistant

Look up Ireland companies live in the official register with Claude, ChatGPT, Cursor or any MCP app. Available: Search, Profile, Filings.

The register

Companies Registration Office (CRO)

The CRO registers every Irish company and business name. It publishes the register entry and the full list of documents each company has filed.

Identifier

Numeric company number (104547). Add /B for the business-name register (540274/B).

Examples: 104547, 540274/B.

Your assistant gets the identifier from company_search and passes it to the other tools, so you can simply ask by name.

Tools

Tool	Available	Details
Search companies `company_search`	Included	Find a company by name in one country's register, with its registration number, status and address.
Company profile `company_profile`	Included	The company's current register entry: name, number, status, legal form, incorporation date and registered address.
Directors and officers `company_directors`	Not included	The CRO's free service does not list officers; they appear only in filed documents.
Shareholders `company_shareholders`	Not included
Financial statements `company_financials`	Not included
Filing history `company_filings`	Included	The company's filing history, newest first: what was filed, when, and which documents can be downloaded.
Get a filed document `filing_document`	Not included	The CRO sells filed documents; they are not included.

Examples

Find Ryanair Holdings plc in the Ireland register and tell me its status and registered address.
Show me the full Companies Registration Office entry for Ryanair Holdings plc.
What has Ryanair Holdings plc filed with the Companies Registration Office recently?

Plans

Standard and Pro include every tool this register supports.

Get started

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