- 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 Holiday 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 Community Centre, Stoke Climsland
- The Old School Hall, Winterton
- The Old School Henstead
- The Old School House Nursery - York
- The Old School Nursery - Shapwick
- The Old School Nursery, Honington
- The Old Schoolhouse
- 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 Online Memorial And Museum Of Prisoners Of War
- 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 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 Ottery Larder
- The Ouroboros Project CIC
- 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 - Jessica Vaughan
- 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 Pant And Dowlais Boys And Girls Club
- 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 Parachute Regimental Association Thames Valley 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 Resurrection, Leicester
- 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 the Ecclesiastical Parish Of Bardsey
- 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 Patchwork Playhouse CIC
- The Path To Independence
- The Pathfinder RCCG
- The PathwaySTILL Community Interest Company
- The Patient Cancer Support Group
- The Patients Association
- The Patrington Mini Medic's
- The Paul Ackrill Fund
- The Paul Campbell Disabled Fund For Spinal Injuries
- The Paul Canoville Foundation
- The Paul Ridd Foundation
- The Paul Sartori Foundation Great Wall 2018 - Pauline & Jackie
- The Pavement
- The Pavement Project CIC
- The Pavilion (Green Lane)
- The Pavilion Preschool - Northampton
- The Pavilion, Grindleton
- The Pavilions Bowls Club - Birmingham
- The Pavillion Roof Appeal, Stockport Cricket And Lacrosse Club
- The Paviors' Charity
- The Pawfect Match
- The Payback Foundation
- The Peace Advocate Project
- The Peace Centre Uganda
- The Peace and Hope Trust
- The Peace and Prosperity Trust
- The PeaceTime Zone
- The Peaceful Pony
- The Peaceful Trust
- The Peacock Nursery - Rye
- The Pear Tree Fund
- The Pearce Foundation
- The Pearl Exchange
- The Pearson Centre for Young People
- The Peel Project CIC
- The Peele Prom
- The Peer Advocacy Service for Students
- The Pegasus Award
- The Pegasus Club
- The Peggy Dodd Centre
- The Pelican Post
- The Pemberton Edward's Charity
- The Pembrokeshire Remakery cic
- The Pen Mag
- The Pendlebury Centre PTFA - Stockport
- The Pendsey Trust
- The Penguin Sports Foundation
- The Pennine Way
- The Pennoyer Centre
- The Pennu Charity
- The Penny On Trust
- The Penrith Singers
- The People Focused Group
- The People Matter Trust Ltd
- The People of Bangor Community Group
- The People's Alliance C.I.C.
- The People's Assembly Against Austerity
- The People's Kitchen
- The People's Mosquito
- The People's Orchestra
- The People's Palace
- The People's Palladium - London
- The People's Pantry - Market Weighton and Pocklington
- The People's People CIC
- The People's Pier
- The People's Recovery Project
- The People's Theatre Company - Surrey
- The Peoples Club
- The Peoples FC
- The Peoples Hub
- The Peoples Pantry Ellesmere Port.
- The Pepper Foundation
- The Pepper Pot Centre
- The Perceval Institute
- The Percival Guildhouse
- The Percy Hedley Foundation
- The Perfect Day Foundation
- The Performing Arts Children's Charity
- The Performing Arts Company
- The Perse School - Cambridge
- The Peru Mission - Ruth Everitt
- The Pet Refuge Project
- The Petchey Academy
- The Peter Jordan Fund
- The Peter Quinn Friendship Group Dementia Support
- The Peter Trust
- The Petersfield School
- The Petersfield School Appeal Trust
- The Petersfield School Malaysia Expedition 2026 - Ilori-Anna Ajanaku
- The Petesfield School Tanzania 2027 - Matilda Seddon
- The Pettifor Trust Corporation
- The Pewsham FC
- The Phab Shop and The Phabulous Cafe
- The Philip Fund
- The Phoenix
- The Phoenix - Bolton
- The Phoenix Centre Specialist Preschool
- The Phoenix Children's Foundation
- The Phoenix Choir of Wales
- The Phoenix Coaching Trust
- The Phoenix Garden
- The Phoenix Group For Deaf Children And Young Adults
- The Phoenix Light Centre
- The Phoenix Players
- The Phoenix Primary School & Nursery - Basildon
- The Phoenix Project
- The Phoenix Resource Centre Amenity Fund
- The Phoenix Stroke Club
- The Phoenix Studio
- The Phoenix Theatre & Arts Centre
- The Phoenix Theatre Company - Chelmsford
- The Phoenix Trust
- The Phyllis Croft Foundation For Canine Epilepsy
- The Pied Piper Appeal
- The Pierce White-Carter Appeal
- The Pig Issue Foundation
- The Pigeon Fanciers Trust
- The Piggott School, Wargrave
- The Piggy Palaces
- The Pilgrim Hospital School, Lincoln
- The Pilgrim School Rochester PTFA
- The Pilion Trust Charity
- The Pilsdon at Malling Community
- The Pimlico Foundation
- The Pinder Centre Trust
- The Pinder Trust
- The Pines Outdoor Club (1972)
- The Pines Pre School
- The Pines Primary School, Bury Saint Edmunds
- The Pinewood Trust
- The Pink Cottage Day Nursery
- The Pink Cowgirls for Sam Beare Hospice
- The Pink Festival Group
- The Pink Place Cancer Charity
- The Pink Singers
- The Pinks N Blues
- The Pinnacle FC
- The Pioneer Club
- The Pioneers Project CIC
- The Pipeworks Arts & Media Centre
- The Pirate Castle
- The Pitstop Out of School Club
- The Place Of The Nations Christian Centre C.I.C
- The Place To Bee
- The Place Youth Club
- The Placenta
- The Planting Project CIC
- The Platelet Society
- The Platform Project
- The Play Cafe - Stoke-On-Trent
- The Play House
- The Play Station - Bar Hill Out Of School Club
- The Playhouse Foundation
- The Playhub
- The Playing Fields Legacy Fund
- The Plight Of The Hill Ponies
- The Plough Inn AFC - Aberdare
- The Plus One Campaign
- The Plymouth City Transport Preservation Group
- The Plympton Bowling Club
- The Pod
- The Poetry School
- The Poetry Society
- The Poetry Translation Centre
- The Poetry Trust
- The Point Church - Burgess Hill
- The Polar Academy
- The Police Children's Charity
- The Police Treatment Centres
- The Polish Centre of Education and Culture
- The Polish Language and Culture Association
- The Polish Saturday School In Aylesbury
- The Pollyanna Pickering Foundation
- The Poltimore House Trust
- The Poly
- The Polygon School, Southampton
- The Pony Club - L&S Branch
- The Poor Knights Of Christ and of The Temple Of Solomon, Scottish Knights Templar
- The Porch Building Appeal
- The Port Grocery
- The Port Men in Sheds
- The Port Sunlight Village Trust
- The Portchester Players
- The Portland Shed
- The Portsmouth Players
- The Portuguese Catholic Mission