Nuclear Information Service was incorporated in 2000 and is a not-for-profit, non-government information service working to promote public awareness and foster debate on the risks and costs of the UK's military nuclear programme.

Its work is dedicated to uncovering the secrecy and challenging the myths about the UK's nuclear weapons programme, and in particular on the warhead development programme at the Atomic Weapons Establishment (AWE). Its local presence based close to AWE uniquely places it to undertake such work, and to press the Establishment to increase its accountability to neighbouring communities and the wider public.

Its advocacy and dialogue work aims to increase the transparency of the UK's nuclear weapons programme. It aims to provide civil society and decision makers with accurate independent information on nuclear weapon issues, generating solid evidence which will inform campaigns and demonstrate a need for change.