We used to maintain a Directory on this website, but it was becoming too complicated to maintain with any reliability and it was very patchy.
We've made the databse available at this link [Excel 3.8MB]. Please note, we will not be planning any updates or corrections to this - it stands as it is. If you don't have Excel installed on your computer, use this online viewer.
If you want to look in other organisations' directories and databases to find a therapist or counsellor, then this article explains what to look for and gives the links to trusted directories at the bottom of the article.