The industry day, to be held on 15 July, will be open to construction firms already on the framework, as well as those interested in the Ministry of Justice's (MoJ) capital programme.
The MoJ said that the event was being held to help shape the future NOMS procurement strategy for capital and large maintenance projects in the prisons & probation estate.
However it will not address the development of new prisons through PFI or facilities management.
Work on NOMS prisons estates is currently delivered through 12 Strategic Alliances frameworks with contractors and frameworks with consultants.