CRO – The Companies Registration Office

The CRO Public Office:

Bloom House
Gloucester Place Lower
Dublin 1

Office hours: 9.30 – 16.30 Monday to Friday

The Public Office entrance is on the corner of Sean McDermott Street Lower and Gloucester Place Lower.
The telephone numbers and email addresses remains the same.

Postal address for B1 Annual Return’s documents for companies:

Companies Registration Office
O’Brien Road
R93 E920

Source: CRO address/location