100 digital marketing jobs have been announced for Dublin.
Search Optics is creating the new positions over the next two years, at its newly opened European and Middle Eastern and African headquarters in Dublin 8.
The company, which was set up in the US, already employs 15 people here.
Brendan O'Brien, chief strategy officer with Search Optics, said the company is "looking to quickly expand the business in Ireland, contributing to employment levels and the continuing success of the country. I believe that we now have an even brighter future ahead of us".
Mr O'Brien told Breakfast Business that their expansion is due to customer demand, including household names such as Ford and Mercedes.
The announcement has been welcomed by acting Jobs Minister Richard Bruton, who said, "having companies like Search Optics here helps us to attract other international tech companies to come to Ireland, and to grow our own Irish tech start-ups".