College of Sexual and Relationship Therapy (COSRT)
Regulating body for relationship and psychosexual counsellors

British Association for Counselling and Psychotherapy (BACP)
Regulating body for counsellors and psychotherapists

Relate
Independent organisation offering relationship counselling and sex therapy

Samaritans
If you need immediate help with suicidal feelings

Women’s Aid 
Domestic violence helpline

Respect 
Help for perpetrators of domestic violence

Citizens Advice
Helps people resolve their legal, money and other problems. Provides free, independent and confidential advice and couple resources

National Society for the Prevention of Cruelty to Children (NSPCC)
If you are concerned about the well being of a child.