The sandwich shop chain is set to give work placements to inmates considered to be a low risk to the public.
They will be offered minimum wage and may even get full time work once freed from prison, thanks to the government scheme.
Ministers are hoping the scheme will give prisoners more focus while still behind bars – and will deter them from reoffending upon release.
The move is a major expansion of the Release on Temporary Licence scheme which 530 businesses have now signed up to.
Those on board include Pret, the Greene King pub cain, Virgin Trains and the DHL parcel service.
Until now, the RoTL scheme was offered only to inmates in the last 12 months of their sentences.
Now governors will be able to put forward any prisoner they think might be suitable.
Justice Secretary David Gauke told the Daily Mail: “Broadening access to training and work opportunities is a vital part of our strategy to steer offenders away from a life of crime and ultimately keep the public safe.
“Many organisations are recognising the value of giving offenders a second chance, and we have carefully listened to their feedback before making these changes.
“I urge more businesses to join this movement and help ex-offenders turn their backs on crime for good.”
The new scheme applies to inmates in open prisons and women’s jails who are considered to be low risk.
They will be paid at least the minimum wage but earnings will vary depending on their employers.
Some of their wages will be invested into the Criminal Injuries Compensation Authority.
About 4,300 prisoners were released on temporary licence at least once between October and December 2018, according to figures.