Ceridian will manage multiple companies and multiple
payroll service IDs within companies (e.g., to manage different union contracts). Their self-help module will let people do all sorts of things but I'm not sure if W-2s are part of that (we don't use that module). However, shortly after W-2s are printed and shipped, they send you a disk so you have the W-2s under your own control. Electronic, printable pay stub history is part of the regular
payroll system. I was actually just using that feature a second ago to explain to a manager why his employee wouldn't likely accept a new position he was creating because it had more hours and more responsibilities for what amounts to the same pay on his check at the end of the week.