Adevia, established in 2003, is an international company based in central London. It recruits for over 350 hospitals across the United States (US) and it's United Kingdom (UK) operations see the company hiring for large hospitals primarily in London and the south east.
There is a satellite office and Country Director in Ireland:
Country Director: Martyn Ward
Phone: 44 7930 360 839 (also WhatsApp)
Nurses from Ireland benefit from a strong education, clinical training, and of course, all are fluent English speakers. In either the UK or the US the possibilities for financial and career advancement are considerable.
Both destinations broadly cover the same ground with regard to credential checking testing. Also, the expenses to get you to the UK/USA are almost entirely covered by Adevia or the hospital.
These two countries both possess advanced sophisticated health care regimes. In the UK it is essentially state-administered whilst that of the USA is mostly private and driven by the free market forces for which the country is famous.