Clare FM and Tipp FM have announced a ''unique alliance'' that the companies say will deliver cost savings and enhance quality of service.
The alliance will involve the stations sharing costs in non-broadcasting areas, enabling them to reduce operational overheads and protect employment.
Both stations will remain independent and retain their individual licences for their respective counties.
The stations have worked closely with the Broadcasting Authority of Ireland over a six-month period.
As part of the deal, Clare FM Managing Director Liam O'Shea has been appointed as chief executive of both radio stations.