Papyrus are a national charity dedicated to the prevention of young suicide. Their specialist telephone helpline service is staffed by trained professionals. They give non-judgemental support, practical advice and information to anyone under 35, as well as anyone concerned about a young person.
Samaritans provide emotional support for people who are experiencing feelings of distress or despair, including feeling suicidal. You can contact their helpline, email them, or use their webchat feature. They are available 24-hours a day, 365 days a year. They are open to all age groups and backgrounds, nationwide.
StayAlive is an information app including tools and advice for staying safe in crisis. You can use it if you are having thoughts of suicide or if you are concerned about someone else who may be considering suicide.