I think you would be surprised at just how many EPOS systems available. However if you are looking for a EPOS systems I would highly recommend the first thing you do is sit down and write your own list of why you want an EPOS system and therefore what it must do. It might seem obviose however some companies rush in without taking the time to see that the product meets there needs.

You do have the option to bring in a consultant  who will look at your needs agree a specification with you outlining your needs and find a EPOS system or give you a short list of systems that meets your needs.