Restaurant chain Camile Thai is opening three new outlets, creating 75 new jobs.
The Thai food restaurant delivery business is opening in Lucan and Swords, and on the Newtownards Road in Belfast.
The firm currently has 12 restaurants in Dublin - as well as in Belfast and Limerick.
It was established in 2010 by O'Briens sandwich bar founder Brody Sweeney.
Marketing manager Daniel Greene said: "Our aim is to double the size of the chain over the next few years and retain our position as the healthiest brand in home delivery.
"80% of our customers are repeat customers and sales in some of our larger branches are well in excess of €1m (per year)".