Spanish womenswear brand Bimba Y Lola increased total sales by 31.7% to €152.4m (£132.5m) for the year to 28 February 2017.
Sales in the UK increased by more than 60% during the period and the brand said international sales now make up 26% of the overall business.
Bimba Y Lola operates seven stores in London and plans to open a further two over the next two years.
Openings are also planned in France, in key cities outside Paris. Bimba Y Lola already has a store in Bordeaux, and also aims to open in areas such as Cannes, Lyon and Provence.
Bimba Y Lola is also working on the construction of a new head office as it expands internationally.