It's down to language and cultural links.
Ireland has a unique advantage when it comes to American investment, according to a Laois general election candidate.
Fianna Fáil's Austin Stacks says Ireland is a prime option for US companies due to language, cultural links and our location on the edge of Europe.
He is known as a campaigner for justice for his father who was shot by the IRA in 1983.
Mr Stack has previously served as Assistant Govnernor in the Irish Prison Service, as well as campaigning as part of the Portlaoise Hospital Action Committee.
Mr Stack says American businesses won't just leave if the tax rate is lowered in the US: