- The Musicke Companye
- The Mustard Seed Project (KENYA)
- The Mutt's Nutts
- The Mwezi Foundation
- The Myotubular Trust
- The Myriad Centre
- The Myton Hospices
- The N10 Choir
- The NICU Foundation
- The NW Live Foundation
- The NW5 Community Play Project
- The Naafi Break CIC
- The Nagajuna Trust
- The Naked Sheep Campaign
- The Namu Project
- The Nana Dee Foundation
- The Nancy Harper Nursery
- The Nancy Oldfield Trust
- The Nantwich Church Restoration and Development Fund
- The Nasio Trust
- The Nasio Trust - Exit 7 Wallingford School 2015 - Harriet Thomas
- The Natalie Kate Moss Trust
- The Natasha Allergy Research Foundation
- The Natashas Project
- The National Alliance of Women's Organisations - NAWO
- The National Allotment Society
- The National Association for Bikers with a Disability
- The National Association of Therapeutic Parents
- The National Autistic Society
- The National Autistic Society - Miss Devon
- The National Autistic Society - One Stop Shop - Ayrshire
- The National Autistic Society - Richmond Branch
- The National Autistic Society - Wrexham
- The National Autistic Society Northern Ireland
- The National Autistic Society West Norfolk Branch
- The National Autistic Society, Lowestoft and District Branch
- The National Brain Appeal
- The National Bullying Helpline
- The National Caravan Council Benevolent Fund
- The National Careline
- The National Centre For Young People with Epilepsy
- The National Coastwatch Institution- Isle of Wight
- The National Community Law Project CIC
- The National Deaf Children's Society - NDCS
- The National Deaf Childrens Society - Emma Nelson
- The National Education Museum
- The National Flood Forum
- The National Lobster Hatchery
- The National Museum of Computing
- The National Obesity Forum
- The National School Fund
- The National Skills Academy for Sport & Active Leisure
- The National Society for Education, Mentoring and Media
- The National Trust
- The National Trust For Scotland
- The National Trust for Jersey
- The National Youth Brass Band of Great Britain
- The National Youth Wind Orchestra of Great Britain
- The National baton twirling Association of Wales
- The Natural Health Sanctuary
- The Natural Travel Collection Uganda Conservation Project 2015 - Eleanor Barrie
- The Nature Nook
- The Naval Children's Charity
- The Nayamba Trust
- The Naz Project
- The Nazareth Trust
- The Nearly Famous Performing Arts Group
- The Need Project - Central Bedfordshire
- The Neighbourhood Project CIC
- The Neil Mackenzie Trust
- The Neil Vines Trust
- The Nelson Thomlinson School PTA - Wigton
- The Nelson Trust - Swindon
- The Neo Karr Trust
- The NeoTree
- The Nepal Trust
- The Nepal {Etay Village} Project
- The Neptune Explorer Scout Unit
- The Ness of Brodgar Trust
- The Nest Childminding - Maidstone
- The Nest Longfield Hall - Camberwell
- The Nest Project
- The Nest Project CIC
- The Nest Wellbeing Group
- The Nestling Trust
- The Neston Club
- The Net Community Hub
- The Neuk Day Centre
- The Neuroblastoma Alliance - Ryan Edwards Appeal
- The Neuroblastoma Children's Cancer Alliance UK
- The Neurodiverse City Hub
- The Neurodiversity Family Hub C.I.C.
- The Neurology Research Fund 3T27
- The Neurothentic Network CIC
- The Never Alone Project
- The Nevis Partnership - Fort William
- The New Beacon Parents Association - Sevenoaks
- The New Bridge Inn F.C
- The New Brighteners
- The New Bury Community Association
- The New Club, Cheltenham
- The New Day Children's Centre
- The New Forest School - Salisbury
- The New Forest Trust
- The New Futures Project
- The New Glyn Valley Tramway & Industrial Heritage Trust
- The New Hope Children Foundation - Blind & Deaf in Malawi
- The New Hope Trust
- The New Inn, Charlestown
- The New Keith Thompson Centre
- The New Montessori Pre-School
- The New Music Makers
- The New Normal Cancer Support Group
- The New Normal Charity
- The New Ollerton Community Walking Club
- The New Opera Company Derby
- The New Pavilion - Bradwell Bowls Club
- The New Pippin FC
- The New Quest Club
- The New Saints
- The New School - London
- The New Space Movement
- The New Staneyhill Toddler Group
- The New Tavistock Youth Cafe
- The New Testament Netley Road Community Hall
- The New Well
- The New York Film Academy Summer Course - Aleisha McMahon
- The NewDawn Twirlers
- The Newent and District Men's Shed
- The Newfoundland Club
- The Newman Holiday Trust
- The Next Chapter (East of England)
- The Next Chapter - Horse Rescue and Rehoming
- The Next Gen Intelligence Academy CIC
- The Next Step Dance Academy
- The Next Step Trust
- The Nia-Tesa Blackett Foundation
- The Nicholas Branston Foundation
- The Nick Webber Trust
- The Nidderdale Society
- The Niel Gow Festival Society
- The Nigerian Children Cause CIC
- The Night With...
- The Nightingale Cancer Support Centre
- The Nightingale Fund
- The Nile African Development Organisation
- The Nine Bridges Benefice
- The Nipple Innovation Project
- The Nise Skateboard School
- The Nixon Hansford Trust
- The No 1 Befriending Agency
- The No Way Trust Ltd
- The No.1 Station
- The Noah Initiative
- The Noah Project Newquay
- The Nobel School World Challenge
- The Nomads
- The Nonprofit Design Studio
- The Norfolk And Suffolk Aviation Museum
- The Norfolk Archaeological Trust
- The Norfolk Hospice - Tapping House
- The Norman Eastburn Foundation
- The Norman Laud Association
- The Norman PTFA
- The Norrie Disease Foundation
- The Norries
- The Norris Museum
- The North Devon Animal Ambulance
- The North East Enterprise Trust, CIC
- The North East Fly Casting Club
- The North Ronaldsay Trust
- The North School Young Farmers Club
- The North School, Ashford
- The North Wiltshire Badminton Project
- The Northern Boxer Club - Boxer Rescue
- The Northern Hockey Club
- The Northern Ireland Kyorugi Squad
- The Norton Knatchbull School
- The Norwich Montessori School Ltd
- The Not Forgotten Association - London
- The Not Forgotten Northern Ireland
- The Nottingham Emmanuel School Fund
- The Nottingham Etiquette Finishing School
- The Nottingham Wildcats Basketball Club
- The November Project
- The Nucleo Project
- The Nursery Parents Association
- The Nursery School - Charlton Kings
- The Nursery, Congleton
- The Nurture Bubble - Emma and Lea
- The Nurture Nest Project CIC
- The Nurture Nursery Bathgate
- The Nurture Project CIC
- The Nystagmus Network
- The O'Neill Scout Trips
- The OHMI Trust
- The OLLIE Foundation
- The Oak Community Church, Orpington
- The Oak Tree Academy, Stockton-on-Tees
- The Oak Tree Centre
- The Oakes Memorial Trust
- The Oakhaven Hospice
- The Oakland Foundation
- The Oaklea Trust
- The Oakley Waterman Caravan Foundation
- The Oakleys And Ramsey Scout Group
- The Oaks Activity Centre & Preschool, Romford
- The Oaks Animal Sanctuary
- The Oaks Care Home Rubery
- The Oaks Centre - Penketh
- The Oaks Infant School PTFA, Sittingbourne
- The Oaks Nursery - Hildenborough
- The Oaks Playscheme
- The Oaks Pre-school - Bracknell
- The Oaks Primary School
- The Oaks Primary School and Nursery - Crawley
- The Oaks School, Spennymoor
- The Oaks, Selly Oak
- The Oaktree Appeal
- The Oakwood Academy - Nottingham
- The Oakwood Preschool
- The Oasis Centre
- The Oasis Crisis Pregnancy Centre
- The Oasis Partnership
- The Oasis Project (The Gambia)
- The Oast, Rainham
- The Observatory School
- The Observatory Science Centre
- The Occam Singers
- The Occasion
- The Occasional Cabaret
- The Octagon Parish
- The Octopus Foundation
- The Oddfellows Pub, Higham
- The Odysseus Foundation
- The Odyssey Centre
- The Odyssey Charity
- The Official Bangor Seafront Cats
- The Official Cobcar Football
- The Offload Project CIC
- The Offshoot Foundation
- The Old Bank Camelford
- The Old Bank Community Larder
- The Old Bank Wellbeing Trust
- The Old Bankhouse Football team
- The Old Chapel Community Project
- The Old Courts
- The Old Hall - care home
- The Old Independent Church Haverhill
- The Old Jet Airspace Programme
- The Old Library
- The Old Library Stainland
- The Old Mansfield Woodhouse Society Heritage Link
- The Old Mill Foundation
- The Old Mill Project
- The Old Moat Garden Centre
- The Old Needleworks Foundation
- The Old North Stables CIC
- The Old Press CIC
- The Old Quarry Adventure Playground
- The Old Rectory Care Home - Norfolk
- The Old Roedeanians Scholarship Fund
- The Old Saw Mill
- The Old School Hall, Winterton
- The Old School House Nursery - Helmingham
- The Old School House Nursery - York
- The Old School Nursery - Shapwick
- The Old School Nursery, Honington
- The Old Schoolhouse
- The Old Schoolhouse Nursery - Perth
- The Old Surgery Dental Practice
- The Old Vic
- The Old Vicarage Day Nursery, Barrow-In-Furness
- The Oldham Academy North Technology Department
- The Oldham Band (Lees)
- The Oldies Club
- The Oldland Players
- The Oli Hilsdon Foundation
- The Olinda Trust Charity
- The Olive Harvest Trust
- The Olive Tree Cancer Support Centre
- The Olive Trust, Wales
- The Oliver Community & Wellbeing Centre C.I.C
- The Oliver Curd Trust
- The Oliver Fisher Special Care Baby Trust
- The Oliver Foundation
- The Oliver Steeper Foundation
- The Olivia Alice Foundation
- The Olney Newton Link
- The Omega Course
- The Omega Movement
- The Once Upon A Dream Ball 2025, Charlie Gardiner
- The One Love Project
- The One Pound to Rescue Group
- The One Voice Foundation
- The One Voice Foundation - Hastings
- The One World Broadcasting Trust
- The Only Child Club Ltd
- The Only Way Is Rowing - Atlantic Challenge 2025
- The Onneley Centre (Managed by Institute of Ageing and Health)
- The Opal Foundation
- The Open Arms Ryde Isle of Wight
- The Open Bionics Foundation
- The Open Door Centre (Swindon & District) Ltd
- The Open Door Centre - Wallasey
- The Open Door Edinburgh
- The Open Door Project
- The Open Doors Project
- The Open Fairways Project CIC
- The Open Kitchen
- The Open Nest Charity
- The Open Wilding Project
- The Opening Doors Project - Liverpool
- The Openwork Foundation
- The Opera Awards Foundation
- The Opera Makers
- The OppO Foundation
- The Opportunity Tribe
- The Optima Collective CIC
- The Optimum Health Clinic Foundation
- The Oral History Project
- The Oratory Prep School & Nursery
- The Orchard
- The Orchard Children's Nursery - Farnborough
- The Orchard Community Pre-School - Milford
- The Orchard Ossett Academy
- The Orchard Pre-School - Little Milton
- The Orchard Project
- The Orchard School PTA - East Molesey, West Molesey
- The Orchard Therapy Animals Farm
- The Orchards PTA - Bromsgrove
- The Orchards Primary Academy - Birmingham
- The Orchars Trust
- The Orchestra of Leeds Cathedral
- The Order of St Michael's Charity Fund
- The Order of St Stanislas
- The Order of the Round Table in England
- The Orders of St John Care Trust
- The Ordinariate of Our Lady of Walsingham - Coventry Mission
- The Organators
- The Original Cat Action Trust North Lanarkshire Branch
- The Original Metalheads
- The Original Swap Shop - Liverpool
- The Original Westies Rescued UK (WRUK)®
- The Orinoco Animal Sanctuary
- The Orpheus Centre - Godstone
- The Osborne Apartments
- The Osteopathic Foundation
- The Otakar Kraus Music Trust
- The Other Room
- The Other Side Of Blackpool
- The Otterhayes Trust
- The Out The Box Performance Group
- The OutHouse
- The Outdoor Partnership
- The Outdoor Place CIC
- The Outlaw Shakespeare Company
- The Outlook Foundation
- The Outpost Housing Project
- The Outsiders Trust
- The Outward Bound Trust
- The Oval School, Yardley
- The Over Players
- The Overton Centre
- The Owen Project
- The Owl Man
- The Owl Playschool
- The Owl Pre School
- The Owl Sanctuary
- The Owl Tree Children's Café CIC
- The Owl and Pussycat Pre-School
- The Owls Disabled Sports Club
- The Oxcroft Recreation Ground and Welfare Institute
- The Oxford Academy Trips
- The Oxfordshire Animal Sanctuary
- The Oxygen Works
- The Oz Experience 2011 - Beth & Kate
- The P B C Foundation(UK) Limited
- The PACE Centre
- The PATT Foundation
- The PCC Of The Ecclesiastical Parish Of Patcham All Saints, Diocese Of Chichester
- The PCC of the Ecclesiastical Parish of St John the Baptist Littleworth
- The PFC Trust
- The PMDD Project
- The PRT Carers Centre (Falkirk & Clackmannanshire)
- The PSP Association
- The PTA for Eaton Primary School
- The PTA of Marshfield Church of England Primary School
- The Pachamama Project CIO
- The Pack Project
- The Paddock Community Garden - Our Green Spaces
- The Pagham United Reformed Church
- The Pain Exchange
- The Painters' Company
- The Pais Project
- The Palace Pier Purchase
- The Palace Project
- The Palmer & Partners 500 Club
- The Palmer Catholic Academy
- The Palmer Children's Trust
- The Palmiro Foundation
- The Pam Merchant Fundraising Club
- The Panel
- The Pankhurst Trust (Incorporating Manchester Women's Aid)
- The Pantry - Watford
- The Pantry @ WWSBC
- The Pantry At Croftfoot Church
- The Pantry Foodbank
- The Paper Birds Theatre Company
- The Papillon Project
- The PappyShow
- The Par 5 Foundation
- The Parachute Regiment Association Lothian Branch
- The Parachute Regimental Association - Colchester
- The Parachute Regimental Association - London Branch
- The Parachute Regimental Association - Portsmouth
- The Parachute Regimental Association Bedworth Branch
- The Paramount Foundation CIC
- The Parc y Werin Committee
- The Parent And Teachers of Hartford Schools
- The Parent House Trust
- The Parent Pond
- The Parent Rooms
- The Parenting Collective cic
- The Parenting Network
- The Parents And Friends Of Wragby School Market Rasen
- The Parents Association of Beechwood Sacred Heart School
- The Parents Association of Bellaghy Primary School - Magherafelt
- The Parish Church Of The Ascension Easington Colliery
- The Parish Church of SS Peter and Paul - Burgh le Marsh
- The Parish Church of St Leodegar - Wyberton
- The Parish Church of St Mary Magdalene - New Milton
- The Parish Church of St Peter & Paul Edenbridge
- The Parish Church of St Peter & St Paul - Northleach
- The Parish Church of St Peter & St Paul - Rustington
- The Parish Church of St Stephen in the Banks
- The Parish Church of the Holy Trinity St. Andrews - Fife
- The Parish Churches of Ockbrook and Borrowash
- The Parish Of Bury, Coldwaltham, Hardham and Houghton
- The Parish Of Horndon, Orsett And Bulphan
- The Parish Trust
- The Parish of Alfold and Loxwood
- The Parish of All Saints with St Philip, Maidstone
- The Parish of Christ Church Denton
- The Parish of Colgate and Roffey
- The Parish of Connah's Quay
- The Parish of Cowpen - St Benedict
- The Parish of Darwen St Cuthbert's with Tockholes St Stephen
- The Parish of Dowlais and Penydarren
- The Parish of Ewhurst with Okewood and Forest Green
- The Parish of Holcombe and Hawkshaw
- The Parish of Kimberley and Nuthall
- The Parish of Marston Moor
- The Parish of Mary Immaculate
- The Parish of Nelson Little Marsden
- The Parish of Our Lady and St Philip Neri
- The Parish of Rochester, St Peter's with St Margaret's
- The Parish of St Barnabas and St Thomas, Oxford
- The Parish of St Johns, Read and St Peter's Simonstone
- The Parish of St Leonards on Sea - St Leonard and St Ethelburga
- The Parish of St Mary - Bradford
- The Parish of Swinton and Pendlebury
- The Parish of Three Saints
- The Parish of Timperley Christ Church
- The Parish of Winnersh
- The Parish of the Immaculate Conception
- The Park Centre Ltd
- The Park Church - Giffnock, Glasgow
- The Park Community Centre Bristol
- The Park Community School Devon
- The Park Schools Federation - Shirebrook
- The Parks Scout Group
- The Parochial Church Council Of All Saints' Friern Barnet, Whetstone
- The Parochial Church Council Of St Oswald, Preesall
- The Parochial Church Council Of The Benefice Of St Stephen'S, Gateacre
- The Parochial Church Council Of The Ecclesiastical Parish Of Keynsham
- The Parochial Church Council Of The Ecclesiastical Parish Of St. Andrew, Enfield
- The Parochial Church Council Of The Parish Of Totton And Calmore
- The Parochial Church Council of Benifice of Frensha
- The Parochial Church Council of Glastonbury St John the Baptist
- The Parochial Church Council of St.Michael and All Angels, Kingsland, Herefordshire.
- The Parochial Church Council of The Parish of St Peter and St Paul - Ringwood
- The Parochial Church Council of the Ecclesial Parish of Kingsdown and Creekside
- The Parochial Church Council of the Ecclesiastical Parish of Hellesdon
- The Parochial Church Council of the Ecclesiastical Parish of Holy Trinity Stevenage
- The Parochial Church Council of the Ecclesiastical Parish of Portsdown and Purbrook
- The Parochial Church Council of the Ecclesiastical Parish of St Mary's Ashwell
- The Parochial Church Council of the Ecclesiastical Parish of Team Gainsborough and Morton
- The Parr Band (Richardson Ltd) St Helens
- The Parrot Zoo Trust - Lincolnshire Wildlife Park
- The Pars Foundation
- The Partially Sighted Society
- The Passage
- The Pastures Church
- The Patch - Sheringham Community Smallholding
- The Patchwork House Women's Centre C.I.C
- The Patchwork Organisation
- The Path To Independence
- The Pathfinder RCCG
- The PathwaySTILL Community Interest Company