Franco Manca has said it will open two new outlets in London this year; one in Covent Garden in the summer and a second in Earls Court this autumn.
The chain, which specialises in Neapolitan sourdough pizza, currently has 13 restaurants in London.
Its success is widely credited to the Franco Manca brick pizza oven. Weighing in at 3.5 tons, it cooks a sourdough pizza at 500C in 55 seconds using beechwood logs.
Franco Manca was acquired in March for £27.5 million by Fulham Shore, which already operated one of its London pizzerias in Tottenham Court Road under a franchise agreement.
Fulham Shore chairman David Page, a former chief executive of PizzaExpress, said at the time of the acquisition that he planned to incrase the number of outlets from 10 to 26 over the next two years.