Three of the biggest online poker sites operating in the United States have been closed down by the FBI after it charged 11 people - including the companies' founders - with bank fraud and money laundering.
One of the companies - Full Tilt Poker - has a subsidiary in Ireland.
Pocket Kings, based in the Cherrywood Business Park in Dublin, is a service provider to Full Tilt Poker and employs 700 people.
Online gambling is a fast growing market worth billions of euros, but is illegal in the US.
The companies themselves have said they believe their activities are legal.