British Association for Counselling and Pyschotherapy (BACP):

http://www.bacp.co.uk/

United Kingdom Council for Psychotherapy (UKCP):

http://www.psychotherapy.org.uk/

Samaritans:

http://www.samaritans.org/

National Autism Society:

http://www.autism.org.uk/

Carers UK:

http://www.carersuk.org/