With effect from 1 January 2007 the information required to be specified on paper company letters and order forms will be extended to electronic form. In addition every company that has a website will be required to display on its homepage those same particulars or identify on its homepage and make readily accessible a webpage on which the particulars appear.
The particulars are as follows:
(a) that the company is registered in Ireland and the number with which it is registered;
(b) the address of the registered office;
(c) in the case of a company exempt from the obligation to use the word “limited” or “teoranta” as part of its name, the fact that it is a limited company;
(d) in the case of a company that is being wound up, the fact that it is being wound up.
(e) where there is reference to the share capital of the company, the reference shall be to the capital that is subscribed and paid up.
Here is a link to the to the Information Leaflet No. 7, “Disclosure And Publication Requirements In Relation To Companies And Business Names“