Pret A Manger has achieved a 13.2% increase in revenue, to £878.5m, for the 52 weeks to 28 December 2017, with like-for-like sales up 3.2%.

It opened 58 net new shops during the period – an increase on the 45 it opened during 2016 – taking its total estate to 502. Thirty-one of the new openings were in the UK.

Pret said it had continued to see a positive performance so far in 2018, despite challenging conditions in the first quarter in the UK and the US. It has opened 31 new shops in 2018, with its first site in Germany due to open later this year at Berlin Central Station.

The company, which was sold to JAB Holdings in a c£1.5bn deal earlier this year, said highlights for 2007 included opening its 500th outlet, and its first in Singapore, and introducing sustainability initiatives such as reusable bottles, free water stations and discounts for bring a reusable cup into shops.

It also highlighted the opening of two further Veggie Prets in London – with the first Veggie Pret outside London to open later this year.

Clive Schlee, chief executive of Pret A Manger, said: “This is another satisfactory set of results for Pret, and our 34th consecutive quarter of like-for-like sales growth.

“The brand continues to thrive around the world thanks to its simple recipe of freshly prepared food, served by genuinely engaged teams.

“We’re looking forward to working closely with JAB who we believe will be excellent long-term owners of Pret. I would also like to thank Bridgepoint for their committed stewardship over the last 10 years.”

The business, which opened 27 stores outside the UK in 2017, said it was committed to expanding in travels hubs in North America and Europe, in partnership with HMSHost, during the coming year.