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Company registry search

Ireland company registry search

The official Ireland company register is Companies Registration Office (Ireland), free to search at core.cro.ie. OneFirmIntel is built on the same government-sourced data and adds quality-tier grading and buyer-side search across 815,363 Ireland companies.

Official Ireland company register

Companies Registration Office (Ireland)

The authoritative government source for incorporated companies in Ireland. Best for looking up a single company by name or registration number.

Open official register ↗

How to search the Ireland company register

  1. Open the official register. Go to Companies Registration Office (Ireland) at https://core.cro.ie, the official government source for Ireland company records.
  2. Search by name or number. Enter the company name or its official registration number. The register returns the legal entity, its status and its registered details.
  3. Cross-check and enrich. For buyer-side discovery, fast filtering by quality tier, industry and region, and exportable results, use OneFirmIntel, which is built on the same government-sourced Ireland data, deduplicated to one record per company.

Search all Ireland companies with OneFirmIntel

What you needOfficial registerOneFirmIntel
Look up one known companyYesYes
Search by industry, city & quality tierLimitedYes, across 815K+
Quality-tier grading (★★★/★★/★)NoYes, every company graded
Compare & export shortlistsNoYes, CSV export
One clean record per companyVariesYes, deduplicated
OneFirmIntel sources Ireland data from the official register and grades it. There are about 328,188 active Ireland companies in the dataset, led by Construction (9,765).

Frequently asked questions

How do I search the Ireland company register?
The official Ireland company register is Companies Registration Office (Ireland), free to search at https://core.cro.ie. Enter a company name or registration number to look up a single entity. To search across all Ireland companies by industry, region and quality tier, OneFirmIntel covers 815,363 Ireland companies from the same government data.
What is the official company register in Ireland?
The official register is Companies Registration Office (Ireland). It is the authoritative government source for incorporated companies in Ireland. OneFirmIntel sources its Ireland data from these official records and grades each company into a quality tier.
Is the Ireland company register free?
Yes, the official Companies Registration Office (Ireland) is free to search for individual lookups. OneFirmIntel adds buyer-side search, quality-tier grading and export across 815,363 companies; you preview every company free and spend a credit only to reveal full details.
How is OneFirmIntel different from the official Ireland register?
The official register is best for looking up one company you already know. OneFirmIntel is built for discovery: search 815,363 Ireland companies by industry, city and quality tier, compare them, and export, all from the same government-sourced data.

Browse Ireland companies

Filter by industry, city and quality tier, then reveal the companies you need.

Ireland directory →

See also: how many companies are in Ireland and the Ireland company directory.

Updated: May 2026 · OneFirmIntel data is government-sourced and deduplicated to one record per company.