As part of the €20m (£17.4m) deal, RSM UK has acquired the ownership of RSM Ireland from the current board comprising John Glennon, Aidan Byrne, Catherine Corcoran Gearty and Niall May.

The two firms will operate as independent entities and the current Irish leadership team will continue to be responsible for the development and management of the Irish firm. 

The three founding partners, Glennon, Corcoran Gearty and Byrne, will remain in strategic leadership roles. May will succeed John Glennon as managing partner in January 2024 working with RSM UK to lead the Irish operation.