More than 180 jobs are being created as three food firms and a call centre expand their businesses.
Jobs Minister Richard Bruton said the companies were a model of what the Government is trying to achieve with an action plan for jobs.
"Here are three Irish businesses, operating in locations across the country, expanding into export markets and creating large numbers of new jobs, a model of what we are trying to achieve with our plan," he said.
Kildare-based O'Brien Fine Foods, which produces premium cooked hams, sausages, rashers and puddings for the retail trade markets in the UK and Ireland, will take on 51 new staff in Timahoe.
It is investing three million euro in the operation.
Green Farm Foods, which also produces premium cooked meat products, will hire 30 workers in a 2.8m euro investment in Rathowen, Co Westmeath.
The expansion will double production and allow the company to expand existing international markets and enter new markets.
Swift Fine Foods, in Castleblayney, Co Monaghan, which produces chilled and frozen ready meals, is creating 53 jobs over the next three years in a 3m euro investment.
The fourth company, Stream Global Service, which provides technical support at offices in Swords and Santry, is to hire 50 new staff. Another 200 seasonal positions are also being filled.