Consolidated will replace incumbent agency BGB, which has held the account for eight years.
It will be targeting consumer media with a brief to develop and implement a strategic PR plan that supports the 'difference' and value of a holiday in Ireland.
Consolidated PR head of consumer Liz Fay said: 'The country has a wonderful variety of experiences for British visitors so our job is to demonstrate the difference and magic of a holiday in Ireland, as well as the great deals available. This will mean achieving cut-through in and out of travel media.'
The agency will support the in-house team to deliver ongoing destination-led coverage that drives up visitor numbers.