Outside bodies
- (Brent and Harrow) Trading Standards Joint Advisory Board
- Association for Public Service Excellence (APSE)
- Bentley Priory Nature Reserve Management Committee
- Board of London Sport
- Capital Letters (London) Limited (‘Capital Letters’) Boroughs’ Representative Body
- Central and North West London NHS Foundation Trust
- Deputy Lord Lieutenant's Committee
- Edward Harvist Charity
- Greater Stanmore Country Park Management Committee
- Harrow Association of Disabled People
- Harrow Citizens' Advice Bureau
- Harrow Cycle Hub
- Harrow Heritage Trust Executive Committee
- Harrow in Europe Committee
- Harrow Nature Conservation Forum
- Harrow on the Hill Forum
- Harrow Safer Neighbourhood Board
- Harrow Strategic Development Partnership
- Harrow Weald Common Board of Conservators
- Homes Limited
- John Pardoe Charity
- Joint Health Overview and Scrutiny Committee
- LBH Bus & Highways Liaison Meeting
- LBH Rail Liaison Meeting
- League of Friends of Northwick Park Hospital
- Lee Valley Regional Park Authority
- Local Government Association - General Assembly Meetings
- Local Government Information Unit
- London CIV
- London Councils' Arts/Culture, Tourism, Sport and Leisure Lead Member
- London Councils' Children and Young People / Safeguarding and Schools Lead Member
- London Councils' Communities, Empowerment and Inclusion Lead Member
- London Councils' Crime & Public Protection Lead Member
- London Councils' Devolution and Levelling Up Lead Member
- London Councils' Digital and Connectivity Lead Member
- London Councils' Economic Development/Business Lead Member
- London Councils' Environmental Issues Lead Member
- London Councils' Finance and Corporate Services Lead Member
- London Councils' Grants Committee (Associated Joint Committee)
- London Councils' Greater London Employment Forum
- London Councils' Health and Social Care including Adult Services Lead Member
- London Councils' Housing and Regeneration Lead Member
- London Councils' Leaders' Committee (s101 Joint Committee)
- London Councils' Planning/ Infrastructure/Development Lead Member
- London Councils' Skills and Employment Lead Member
- London Councils' Transport & Environment Committee (Associated Joint Committee)
- London Councils' Young People's Education and Skills Board
- London Road Safety Council
- London Youth Games
- Mayor of Harrow's Charity Fund Trustees
- Middlesex Guildhall Collection and Trust Fund
- Newable Ltd (formerly Greater London Enterprise Ltd)
- Relate London North West
- Reserve Forces and Cadets Association for Greater London
- Sir John Wolstenholme Charity
- Standing Advisory Council for Religious Education
- Victoria Hall Trust
- West House and Heath Robinson Museum Trust
- West London Alliance
- West London Waste Authority