About PESI is the national portal for CPD and training information for psychotherapists, counsellors, trainees and those involved in the mental health. You are here: Home About We are a social enterprise (not-for-profit) and aim to better standards in psychotherapy through continuing professional development. About The national portal for CPD and training. Delivering the highest quality content, products and services. FAQs Find out all you need to know in our FAQs section. If you can't find what you are looking for please contact us.