This page contains a list of all the UK government departments and other public organisations we can investigate.
You can also use our complaint checker tool 'Can we look into your complaint?' to find out if we can investigate the organisation you want to complain about. It will take you to the correct complaint form.
If you are still not sure, this page will tell you what we can and can't help with or you can ring us 0345 015 4033.
- National Advisory Group on Clinical Audit and Enquiries
- National Archives
- National Army Museum
- National College for Teaching and Leadership (NCTL)
- National Crime Agency
- National Employer Advisory Board
- National Employment Savings Trust Corporation
- National Forest Company
- National Gallery
- National Heritage Memorial Fund
- National Institute for Health and Care Excellence (NICE)
- National Insurance Contributions and Employer Office, HM Revenue and Customs
- National Lottery Commission
- National Museum of the Royal Navy
- National Museums Liverpool
- National Offender Management Service (NOMS)
- National Portrait Gallery
- National Probation Service
- Natural England
- Natural Environment Research Council
- Natural History Museum
- Natural Resources Body for Wales
- Northern Ireland Human Rights Commission
- Northern Ireland Office (NIO)
- Nuclear Decommissioning Authority
- Nuclear Liabilities Financing Assurance Board
- Nuclear Liabilities Fund
- Nuclear Research Advisory Council
- Nutrition Forum