This insurance website seems to have a presence in UK, Ireland and Canada (from a drop down menu upper right corner).
In no particular order and off the top of my head: Action for ME, charity number 1036419 ME Association, charity number 801279 Invest in ME, charity number 1153730 ME Research UK, charity number SC036942 The ME Trust, charity number 1142583
No, I don't think so, I just went by memory, although I did have to look up the charity numbers. I don't see anywhere on the Ecclesiastal site that would have told you this information.