Welcome to the Companies Registration Office Ireland
The Companies Registration Office (the CRO) is the central repository of public statutory information on Irish companies, business names, and limited partnerships
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Latest News
See All News2025 Christmas Dates
24 November 2025 Learn MoreRevenue maintenance notice
21 November 2025Revenue will conduct scheduled system maintenance on Saturday 22 of November from 13:00 to 21:00. During this period, ROS (Revenue Online Service) may experience some disruption. If you experience difficulty in using ROS during this period, we suggest using the signature page upload option on CORE as an alternative, or to try again at a
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What We Do
– The Companies Registration Office is the central repository of public statutory information on Irish companies and business names.
– The CRO operates under the aegis of the Department of Enterprise, Tourism and Employment.
Our Main Functions
The CRO’s core functions include:
– The incorporation of companies
– Enforcing the filing obligations of companies
– Making information on companies publicly available
– Registering Business Names and Limited Partnerships
