Revolution Bar Group saw like-for-like sales increase by 16.2% over the five week Christmas period.
In a trading update for the 26 weeks to 31 December it reported sales across its 66 bars hitting £66.6m, up 12.7% on the same period in 2015.
Like-for-like sales for the entire trading period were up 2%.
During the last six months of 2016, the group opened Revolución de Cuba bars in Harrogate, Aberdeen, Reading and Glasgow. It is currently on site at its fifth development in Southend on Sea.
Chief executive Mark McQuater said: "We had a strong festive trading period across our existing estate and all of our new sites were open for Christmas and New Year where initial trading was encouraging, with group sales increasing 16.2% over the five week trading period.
"We continue to develop our pipeline and are currently on site at our fifth development in FY17 which will take the estate to 67 sites."