Hanley Energy, a power management services firm, is to create 225 new jobs in the northeast.
The positions are part of the company's expansion in Ireland and will include a new manufacturing facility in Monaghan and further development of an existing facility in Dundalk, Co Louth.
The new jobs, which the company will begin recruiting for over the next three months, include electrical and mechanical engineers, apprenticeships, general operatives and production staff.
The company has said it plans to open a new 70,000 square foot facility in Monaghan Town to meet "the increasing demand for installation and service of its equipment which serves the growing critical power market".
Hanley Energy already employs over 650 people.
It is headquartered in Co Meath and has offices in Germany, Sweden, Australia, South Africa and the United States.
"Due to increased demand from our export markets, we are expanding our manufacturing base in Dundalk and Monaghan to facilitate our continued growth," said Dennis Nordon, co-founder and Managing Director of Hanley Energy.
Tánaiste and Minister for Enterprise, Trade and Employment Leo Varadkar has welcomed the announcement, saying it provides a "real boost to the northeast region".
"I love to see multinationals investing in Ireland and creating jobs for people. But there is nothing I like more than seeing Irish companies grow and become exporters and global players in their own right," said Mr Varadkar.
The jobs are supported by Enterprise Ireland.
"Hanley Energy's growth will play an important role in Ireland continuing to have a positive impact in the rapidly growing energy efficiency and management sector globally and enable the company to realise growth opportunities from the low-carbon transition" said Leo Clancy, CEO of Enterprise Ireland.
