Dixons Carphone - which operates more than 30 outlets in Northern Ireland - is shutting 134 of its UK stores as part of a merger process.
The firm, which was formed as a merger of Dixons Retail and Carphone Warehouse, is reducing store numbers of its Currys and PC World brands to 323 in the UK. It's also cutting its stores in the Republic from 27 to 15.
The group said it will overhaul all its PC World and Currys stores to relaunch as so-called three-in-one stores, combining PC World, Currys and Carphone Warehouse over the next year and a half.
It currently operates around nine Currys/PC World stores in Northern Ireland.
The firm also has around two dozen Carphone Warehouse stores here.
But the company would not say how many stores here would be affected.
It's understood staff are currently being told whether they will be hit by the company's cost-saving plan. Dixons Carphone said it will relocate all staff impacted to nearby superstores.
Details of the changes came as the group hailed a "strong" performance over Christmas and edged its annual profit outlook higher.
A year ago, Currys pulled out of its central Belfast location at Donegall Arcade.
Meanwhile, floorings retailer Carpetright has said total sales fell 1.3% over the 12 weeks to January 23 compared to 12 months ago. It has eight stores in Northern Ireland.