The first thing to do is make sure all of the monitors are calibrated on the computer systenm that they are connected to. Then make sure that each computer, regardless of which version of
PS is installed), has the Color Management settings properly set up to manage color and recognize ICC profiles which are embedded in the images. Make sure each user then saves the ICC profile in each image that is transferred between computers. It would be nice if everyone's workspace was the same, however, that is not necessary as long as the images are tagged with their respective ICC profiles.
Regards, Murray