All private companies must submit their accounts annually to the Companies Registration Office in Dublin.
You can look up the owners of registered business names and the annual accounts of all private companies on the CRO’s website – www.cro.ie
You can find the registered address of a company, the names of directors and the company’s annual financial statements.
SGC Business 
id imagine it would be much the same format as a whois search on a website.
on the contrary, It would have much more information such as websites like http://www.cartell.ie .
Site like these are a brilliant way for companies/businesses to keep upto date with modern technology as now,
for all reason, the internet is an open source engine for anyone.