NCPO members
- Anglican Pacifist Fellowship
- Christian Peacemaker Teams (UK)
- Baptist Peace Fellowship
- Christian International Peace Service
- Christian Campaign for Nuclear Disarmament
- Church and Peace
- Clergy Against Nuclear Arms
- Community of Christ
- Ekklesia
- Fellowship of Reconciliation
- Iona Community
- Martin Luther King Peace Committee
- Methodist Peace Fellowship
- Northern Friends Peace Board
- Pax Christi
- Quakers in Britain
- Student Christian Movement
- Third Order of St Francis
- Unitarian Peace Fellowship