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.
- Administration of Radioactive Substances Advisory Committee
- Advisory Committee on Animal Feeding Stuffs
- Advisory Committee on Clinical Excellence Awards
- Advisory Committee on Consumer Engagement
- Advisory Committee on Microbiological Safety of Food
- Advisory Committee on Novel Foods and Processes
- Advisory Committee on Releases to the Environment
- Advisory Council on Historical Manuscripts
- Advisory Council on National Records and Archives
- Advisory Council on Public Records
- Advisory Council on the Misuse of Drugs
- Advisory Group on Military Medicines
- Advisory Panel on Public Sector Information
- Advisory, Conciliation and Arbitration Service (ACAS)
- Agriculture and Horticulture Development Board
- Animal and Plant Health Agency
- Animals Procedures Committee
- Appeal Officer for Community Interest Companies
- Arts and Humanities Research Council
- Arts Council England
- Atos Healthcare - for Department for Work and Pensions
- Benefits office (Department for Work and Pensions)
- Biotechnology and Biological Sciences Research Council
- Board of the Pension Protection Fund
- Board of Trade
- Board of Trustees of the Science Museum
- Border Force
- Boundary Commission for England
- Boundary Commission for Northern Ireland
- Boundary Commission for Scotland
- Boundary Commission for Wales
- British Council
- British Film Institute (BFI)
- British Hallmarking Council
- British Library Board
- British Museum
- British Pharmacopoeia Commission
- British Tourist Authority (VisitBritain)
- British Transport Police Authority (BTP)
- Building Regulations Advisory Committee for England
- Cabinet Office
- Capital for Enterprise Limited
- Care Quality Commission (CQC)
- Central Advisory Committee on Pensions and Compensation
- Central Bureau for Educational Visits and Exchanges
- Certification Officer for trade unions and employers' associations
- Charity Commission
- Child Benefit Office, Her Majesty's Revenue and Customs
- Child Support Agency (CSA) or Child Maintenance Service
- Children and Family Court Advisory and Support Service (CAFCASS)
- Civil Aviation Authority
- Civil Justice Council
- Coal Authority
- Commission on Human Medicines
- Commissioner for Victims and Witnesses
- Commissioners of Northern Lighthouses
- Committee on Climate Change
- Committee on Mutagenicity of Chemicals in Food, Consumer Products and the Environment
- Committee on Radioactive Waste Management
- Committee on Standards in Public Life
- Committee on Toxicity of Chemicals in Food, Consumer Products and the Environment
- Commonwealth Scholarship Commission in the United Kingdom
- Community rehabilitation companies
- Companies House
- Competition and Markets Authority
- Competition Service
- Construction Industry Training Board
- Consumer Council for Water
- Corporation of the Trinity House of Deptford Strond (Trinity House)
- Council for Science and Technology
- Court Funds Office
- Criminal Injuries Compensation Authority
- Crown Estate Office
- Crown Prosecution Service (only if you are a victim of crime, under the Victim's Code)
- Defence Nuclear Safety Committee
- Defence Scientific Advisory Council
- DEFRA Science Advisory Council
- Department for Business and Trade (DBT)
- Department for Business, Energy and Industrial Strategy
- Department for Business, Innovation and Skills (BIS) - now Department for Business, Energy and Industrial Strategy
- Department for Communities and Local Government (DCLG)
- Department for Culture, Media and Sport (DCMS)
- Department for Education (DfE)
- Department for Energy Security and Net Zero (DESNZ)
- Department for Environment, Food and Rural Affairs (DEFRA)
- Department for Exiting the European Union (DExEU)
- Department for International Development (DfID)
- Department for International Trade
- Department for Science, Innovation and Technology
- Department for Transport (DfT)
- Department for Work and Pensions (DWP)
- Department of Energy and Climate Change (DECC) - now Department for Business, Energy and Industrial Strategy
- Department of Health (DfH)
- Director of Fair Access to Higher Education
- Director of Labour Market Enforcement
- Disabled Persons Transport Advisory Committee
- Disclosure and Barring Service
- Drinking Water Inspectorate
- Driver and Vehicle Standards Agency
- DVLA (Driver and Vehicle Licensing Agency)
- Economic and Social Research Council (ESRC)
- Education and Skills Funding Agency
- Electoral Commission
- Electricity Settlements Company Ltd
- Engineering and Physical Sciences Research Council
- Engineering Construction Industry Training Board
- English Sports Council (Sport England)
- English Tourist Board (Visit England, Visit Britain)
- Environment Agency
- Equality and Human Rights Commission
- Ethics Group: National DNA Database
- Ethnic Minority Business Forum
- Export Credits Guarantee Department
- Film Industry Training Board for England and Wales
- Food Standards Agency (FSA)
- Foreign, Commonwealth & Development Office (FCDO)
- Forestry Commission
- Fuel Poverty Advisory Group
- G4S Care and Justice Services - for the Ministry of Justice or Home Office
- Gambling Commission
- Gangmasters and Labour Abuse Authority or Gangmasters Licensing Authority
- Gas and Electricity Markets Authority (Ofgem)
- Geffrye Museum
- General Advisory Committee on Science
- Government Actuary's Department
- Government Equalities Office
- Great Britain-China Centre
- Groceries Code Adjudicator
- Health and Safety Executive (HSE)
- Health and Social Care Information Centre (HSCIC)
- Health Education England
- Health Research Authority
- Her Majesty's Courts and Tribunals Service (HMCTS)
- Her Majesty's Passport Office
- Her Majesty's Prison Service
- Her Majesty's Revenue and Customs (HMRC)
- Her Majesty's Stationery Office (TSO)
- Her Majesty's Treasury
- High Speed Two (HS2) Ltd
- Higher Education Funding Council for England
- Highways Agency or Highways England
- Historic Buildings and Monuments Commission for England (English Heritage)
- Historic Royal Palaces
- Home Office
- Homes and Communities Agency
- Horniman Public Museum and Public Park Trust
- Horserace Betting Levy Board
- Human Fertilisation and Embryology Authority
- Human Tissue Authority
- Immigration Enforcement
- Immigration Services Commissioner
- Imperial War Museum
- Independent Advisory Panel on Deaths in Custody
- Independent Agricultural Appeals Panel
- Independent Case Examiner
- Independent Commission for Aid Impact
- Independent Living Fund (2006)
- Independent Medical Expert Group
- Independent Monitoring Authority for Citizens’ Rights Agreements
- Independent Reconfiguration Panel
- Independent Scientific Group on Cattle TB
- Industrial Development Advisory Board
- Industrial Injuries Advisory Council
- Information Commissioner (ICO)
- Insolvency Service
- Institute for Apprenticeships and Technical Education
- Intellectual Property Office (IPO)
- Jobcentre Plus - Department for Work and Pensions
- Joint Nature Conservation Committee
- Land Registry
- Law Commission
- Leasehold Advisory Service
- Legal Aid Agency
- Local Better Regulation Office
- Local Government Boundary Commission for England
- LocatED – Department of Education
- Low Carbon Contracts Company Ltd.
- Low Pay Commission
- Marine Management Organisation
- Maritime and Coastguard Agency
- Marshall Aid Commemoration Commission
- Medical Research Council (MRC)
- Medicines and Healthcare products Regulatory Agency (MHRA)
- Ministry of Defence (MoD)
- Ministry of Justice (MoJ)
- Monitor (Independent Regulator of NHS Foundation Trusts)
- 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
- Office for Budget Responsibility
- Office for Environmental Protection
- Office for Nuclear Regulation
- Office of Communications (Ofcom)
- Office of Public Sector Information
- Office of Qualifications and Examinations Regulation
- Office of Rail and Road or Office of Rail Regulation
- Office of the Children's Commissioner
- Office of the Immigration Services Commissioner
- Office of the Public Guardian
- Office of the Regulator of Community Interest Companies
- Office of the Secretary of State for Scotland
- Official Receiver
- Official Solicitor to the Supreme Court
- Ofgem (Office of Gas and Electricity Markets)
- Ofqual (Office of Qualifications and Examinations Regulation)
- Ofsted (Office for Standards in Education, Children's Services and Skills)
- Ofwat (Water Services Regulation Authority)
- Oil and Pipelines Agency
- Ordnance Survey
- Parades Commission for Northern Ireland
- Parole Board
- Passengers' Council - now Transport Focus
- Pension Service - Department for Work and Pensions
- Pensions Ombudsman Service
- Pensions Regulator
- Planning Inspectorate
- Police (only if you are a victim of crime, under the Victim's Code)
- Prisons and Probation Ombudsman
- Public Health England
- Public Record Office (National Archives)
- Pubs Code Adjudicator
- Regional Advisory Committees
- Regional Development Agencies
- Registrar General for England and Wales
- Registrar of Consultant Lobbyists
- Regulatory Policy Committee
- Remploy Ltd
- Residuary Bodies
- Reviewing Committee on the Export of Works of Art and Objects of Cultural Interest
- Royal Air Force Museum
- Royal Armouries Museum
- Royal Botanic Gardens, Kew
- Royal Commission on Historical Manuscripts
- Royal Mint
- Royal Museums Greenwich
- Rural Payments Agency
- Science Advisory Committee on the Medical Implications of Less Lethal Weapons
- Science and Technology Facilities Council
- Sea Fish Industry Authority
- Security Industry Authority
- Sentencing Council for England and Wales
- Serious Fraud Office (only if you are a victim of crime, under the Victim's Code)
- Single Source Regulations Office
- Sir John Soane's Museum
- Small Business Commissioner
- Social Mobility and Child Poverty Commission
- Social Science Research Committee
- Social Security Advisory Committee
- Sports Grounds Safety Authority
- Standards and Testing Agency
- Student Loans Company
- Supreme Court
- Tate Gallery
- Tax credits (HM Revenue and Customs)
- Tax office (HM Revenue and Customs)
- Technology Strategy Board
- The National Lottery Community Fund
- Theatres Trust
- Traffic Commissioners for Great Britain
- Transport Focus
- Treasure Valuation Committee
- Treasury Solicitor
- UK Anti-Doping Ltd
- UK Commission for Employment and Skills
- UK National Authority Advisory Group
- UK Research and Innovation
- UK Statistics Authority
- UK Visas and Immigration (UKVI)
- United Kingdom Atomic Energy Authority
- United Kingdom Debt Management Office
- United Kingdom Sports Council
- United Kingdom Trade and Investment - now Department for International Trade
- Unlinked Anonymous Surveys Steering Group
- Urban development corporations established for urban development areas wholly in England
- Valuation Office Agency
- Valuation Tribunal Service
- Vehicle Certification Agency (VCA)
- Veterans UK
- Veterinary Products Committee
- Victoria and Albert Museum (V&A)
- Wales Office
- Wallace Collection
- War pensions committees
- Westminster Foundation for Democracy
- Youth Justice Board for England and Wales (YJB)