[3] On 1 June 2021 Bauer Media Audio announced the completion of its acquisition of Communicorp Group in Ireland, including Today FM.

[4][5][6] In October 2007, the Broadcasting Commission of Ireland (BCI) approved Communicorp's proposed takeover of Today FM and Highland Radio, but not FM104.

[9] Due to a Competition Authority decision, Communicorp was required to sell-on FM104, which it did (to UTV Media) immediately upon its acquisition.

[10] The experienced broadcaster and radio programmer Tom Hardy served as the station's Director of Programming from 1998 until January 2013, when he was replaced by Martin McGuire.

On Tuesday 1 June 2021 Bauer Media Audio announced the completion of its acquisition of Communicorp Group in Ireland, including Today FM.

[13] The incident provoked much commentary in the media, with the Sunday Independent observing "Instantly, the Irish-American comedian was the villain of the piece and Derek was all over the front page", while Ray D'Arcy was also criticised for his choice of words.

On 15 October 2011, Today FM confirmed Sam Smyth's Sunday radio show was being dropped.

Smyth had previously offended his bosses by commenting in a newspaper and on television about the Moriarty Tribunal, which criticised Today FM owner Denis O'Brien.

[17] The Irish Independent, of which Denis O'Brien is a leading shareholder, reported that Anton Savage was being lined up to replace Sam Smyth.

[19] Ray D'Arcy hosted the weekday mid-morning slot for 15 years but abruptly left Today FM to rejoin RTÉ with immediate effect in December 2014.

[20] On 25 January 2017, comedian Al Porter was announced, live on air, as the new host of the midday show, moving into Whelan and Moore's old slot.

However, in November 2017, after allegations of sexual misconduct made against Porter, he decided to resign from Today FM with immediate effect.

[24] Former presenters on Radio Ireland/Today FM include Louise Duffy, Keith "KC" Cunningham, Philip Boucher-Hayes, Mark Byrne, Mark Cagney, Enda Caldwell (Planet Hits and later, Nothin'But 90's) Breffni Clack (Late Nite Love), Bob Conway, Tom Dunne and Ann Gleeson (Pet Sounds), Eamon Dunphy (original presenter of The Last Word), Tony Fenton, Derek Flood, Declan Meehan, Bob Gallico, Nadine O'Regan, Tommy Greene, Anne-Marie Hourihan (originally Eamon Dunphy's co-host), Bill Hughes, Robbie Irwin (weekend sports programs presenter), Mark Kavanagh (dance show), Ann Marie Kelly, John Kelly, Tim Kelly, Cliff Walker, Stephen Keogh, Gerard Gogan, Dave Redmond, Tracey Lee, Nails Mahoney, Marty Miller, the late Dermot Morgan, Paddy Murray and Liam Mackey (Murray and Mackey), Ian Noctor (newsreader who also for a period presented Dad Rock), Ed Myers, Jim O'Neill, Paul Power, Ita Ryan (The Celtic Reel), John Ryan (original presenter of The Sunday Supplement), Donal Scannell, Jon Troy (Between The Sheets - love songs), Karl Tsigdinos (The River of Soul), Neil Delamere, Dave Couse, Anton Savage, Ray D'Arcy, Al Porter, Kelly-Anne Byrne, Paul McLoone, Phil Cawley, Mairead Ronan, Fergal D'arcy, Jessica Maciel, Dermot Whelan, Pamela Joyce and Ed Smith (Ed's Indie Disco and Ed's Songs of Praise).