Three Ireland is renewing its contract to keep its name on the Three Arena.
Ireland's second largest mobile company says it will continue its sponsorship for another 10 years.
It inherited the naming rights when it took over O2, which paid 25 million in '08 for the entertainment venue on Dublin's North Docks.
Elaine Carey, Three's Chief Commercial Officer, says the naming rights contract over the next ten years is €55 million and ensures that they bring the first smart music venue to Ireland.