FDAP (Federation of Drug and Alcohol Professionals)
Professional body for practitioners in the substance use field
Manages the Drink and Drugs.net portal
MIND
Leading mental health charity in England and Wales
Support and advice for people with mental health difficulties
Information, action and campaigning
Homeless UK
Services for homeless people in the UK, with information on over 9,000 services - hostels, day centres and other advice and support services. Search for accommodation and other support services in your area.
Institute of Family Therapy
Training, clinical services, mediation, consultations to professionals, and services for children, young people and families
Relate
Offers advice, relationship counselling, sex therapy, workshops, mediation, etc
Charity Commissioners
The regulator and registrar for charities in England and Wales
GuideStar UK
Comprehensive information about every charity in the UK
Social Care Institute for Excellence (SCIE)
Aims to improve the experience of people who use social care by developing and promoting knowledge about good practice in the sector.