Many non-Irish companies find that having an Irish operation makes good sense
This is often because of the 12.5% corporation tax rate and the many double-tax treaties that establish Ireland as a mainstream tax jurisdiction and not a tax haven.
However, there are many other benefits. Ireland is the only English-speaking country in the Eurozone and there is a flexible, well educated workforce. The environment is very business friendly and there are many grants available, particularly for knowledge-intensive activities. Ireland is the European sales and service base for many prominent multinationals.
What is involved?
I have set up such an Irish operation recently, and I can provide everything needed to establish a business of genuine substance:
Any Irish operations must be managed and controlled in Ireland, and it is of great benefit to have real local business people as directors/employees.