Barburrito, the Manchester-based Mexican-style casual dining chain, is close to securing additional investment to double its estate as part of its plan for a nationwide presence.

Co-founder Morgan Davies told M&C Report the company is in “advanced discussions” with existing investors the British Growth Fund to open more restaurants across the country, including “a few in the pipeline”.

Barburrito has doubled the size of its business from six to 11 sites and doubled the weekly sales in the last 18 months.

There are currently sites in Leeds, Liverpool, Nottingham, Manchester and, most recently, two sites in London, which Davies said are performing well: “It has been very positive in London, it’s nice to finally be down there and competing with other burrito operators. It’s a rich food environment which we enjoy being part of and are confident in our food.”

The company received a £3.25m investment from the BGF in April 2012 to help it expand to 18 within four years.