Staff could be told as early as next week.
Seven have already shut up shop and a source told The Sun: “It’s devastating news, and the timing is pretty bad too.
“But hard-working, loyal employees who have given their all for Jamie Oliver now fear being tossed aside like garbage. It’s surely the dole queue for some and this whole thing stinks.”
Branches in Milton Keynes, Glasgow, Bristol, Chelmsford and Cardiff are at risk too.
A Jamie Oliver Restaurant Group spokesman told The Sun that the group was “exploring plans to restructure its Jamie’s Italian restaurant estate” but that no final decision has been made.