Hi Sam, thanks for your response, I appreciate it. I suppose the reason I used the phrase, "few and far between," is that I did read of some reformed churches in existence in Israel. The difficulty I have is that I'm not in a position to confirm, one way or the other, if these are indeed reformed churches or not.
On that basis, I decided that it was best to be charitable, to avoid appearing dismissive of any reformed churches which may be in existence in Israel. I'm living a great distance away and without sufficient enough knowledge of the situation on ground, aside from having spoken to a reformed believer in Israel, in order to provide a definitive answer.