I do know some Komiates both in London and Cyprus but as they are not close, I don't have their numbers. I do know how some can be located by where they work. Are you in the UK? if so I can direct you and give you some names.
There was a Web Site once on Koma Tou Yialou, but I have been trying for days and I still cannot find it, when I do I will send you the link.