Contact Us

If you have any questions or queries, a member of our team will always be happy to help. Feel free to contact us by email, and we will be sure to get back to you as soon as possible.


To ensure we can help you in the quickest time possible, please provide us with the following details in your email (where known):

  • Submission number
  • Customer login name
  • Company number
  • Submission type
  • Transaction number
  • Brief description of the issue (including any error messages)
  • Screenshot of the application

If your issue is related to your Annual Return, please contact the team directly on

Otherwise, our general query line is

CRO Contact Details

Email the Companies Registration Office at:

Phone the Companies Registration Office at: 00 353 (0)1 804 5200. 

Postal Address of the Companies Registration Office: CRO, Bloom House, Gloucester Street Lower, PO Box 12858, Dublin 1.

Postal Submissions

Postal Address: Companies Registration Office, O'Brien Road, Carlow, R93 E920. 

DX Address: DX 271 004    Carlow 2   


Public Office

Due to Covid-19, the Public Office of the CRO and RFS remains closed until further notice.