Tragus, operator of Café Rouge and Bella Italia, has reported strong trading during the Christmas period, following its sale to the Blackstone Group last month.
The group saw an 11.8% rise in total sales over the six week period before 7 January, with a 15% increase in like-for-like sales in London.
Weekly sales records were broken in 56 restaurants.
Tragus was sold by Legal and General Ventures to the Blackstone Group for £267m in December, increasing the Group's potential overdraft from £20m to £40m.
Graham Turner, CEO of Tragus, said: "Our core brands are going from strength to strength and continue to benefit from the investment and operational initiatives we have undertaken."
The success of the Café Rouge brand has prompted the group to consider doubling its number of sites, with five openings scheduled before June.
By Alex Blakelock
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