Pret is planning to open up to 200 stores after dividing the UK for conquest.
The sandwich and coffee chain is looking to open about 100 of its own shops in the next three years, and is now in talks to open a further 100 as franchises.
Pret, which is owned by German fund JAB Holdings, is in talks with possible partners about dividing the UK into franchised regions in a push to expand outside London.