One in Four (London) was established by Colm O’Gorman in London, UK in 1999. The organisation became a registered charity in July 2000 and currently operates nationally in the UK from its London offices. It provides support and resources to women and men who have experienced sexual abuse.

One in Four Ireland was established in Ireland in July 2002. Based in Holles Street, Dublin, it operates nationally offering a range of services and supports to women and men who have experienced sexual abuse and/or sexual violence.

One in Four exists to give voice to the experience of people who have experienced sexual abuse and/or sexual violence and to provide a space that by its very existence challenges feelings of shame and self blame. In the often perceived hopelessness and despair of such trauma the possibility of meeting another, one who has undertaken that journey themselves, offers hope and encouragement.

One in Four actively seeks and welcomes at all levels of the organisations work the involvement of people who have experienced sexual violence. The creation of a community that bears witness to the isolating and silenced reality of sexual violence fundamentally changes and moves beyond that reality.