Bay Broadcasting Limited is the operator of premium radio brands Radio Nova, Ireland’s Classic Hits Radio, and Sunshine 106.8. Prior to 2007 Bay operated two temporary broadcasting licences targetting older (over-45s) listeners. These were issued by the then Broadcasting Commission of Ireland (then BAI, now the Media Commission). In 2008 it was part of the Choice Broadcasting consortium (which originally included the Irish Times, Thomas Crosbie Holdings and Vienna Investments) which successfuly bid for the first multi-city radio licence in Ireland. This station started broadcasting in February 2009 as "4FM" until 2018 before adopting the current name "Classic Hits Radio".

In September 2008 Bay Broadcasting was a leading member of the consortium which secured the licence for a Dublin-based rock music radio station. Other investors included Vienna Investment Limited, Des Whelan and Pat McDonagh.

Bay Broadcasting are also majority-owners ofDublin-based rock music station Radio Nova which went on air in September 2010. In 2018 the Broadcasting Authority of Ireland (BAI, now the Media Commission) approved Bay's taking 100% control of Radio Nova, buying out the other shareholders.

In 2012, Bay Broadcasting acquired a 45% shareholding in Star Broadcasting, the operator of Sunshine 106.8FM.

In 2012, Bay Broadcasting had publicly expressed interest in acquiring some or all of the radio assets of Communicorp owner Denis O'Brien at a point when the BAI was considering whether Mr O'Brien should be ordered to sell some of his media assets over media pluralism and diversity concerns. In the event that BAI consluded that Mr O'Brien's holdings were not sufficient to require divestment of any of his media assets.