| O DDRWS I DDRWS | £388k | FY2025 | |
| O&G SCHREIBER CHARITABLE TRUST | £158k | FY2024 | |
| O&T Foundation | £110k | FY2024 | |
| O'BRIEN CHARITABLE TRUST | £66k | FY2025 | |
| THE O'CONNOR GATEWAY TRUST | £371k | FY2025 | trustee payments |
| O'HEA CHARITABLE TRUST | £50k | FY2025 | |
| THE O'SULLIVAN FAMILY CHARITABLE TRUST | £145k | FY2025 | |
| O.F.M. CAPUCHIN GB CHARITABLE TRUST | £1.0m | FY2025 | |
| O.P.A.L CENTRE | £57k | FY2025 | |
| O/MODERNT FOUNDATION | £456k | FY2026 | |
| OAC BUILDINGS | £705k | FY2024 | |
| OADBY AND WIGSTON MUSLIM ASSOCIATION | £347k | FY2025 | |
| OADBY BAPTIST CHURCH | £137k | FY2024 | |
| Oadby Community Hub | £477k | FY2025 | |
| THE OADBY EDUCATIONAL FOUNDATION | £59k | FY2024 | |
| OADBY EVANGELICAL FREE CHURCH | £88k | FY2025 | |
| OADBY WYGGESTONIAN RUGBY FOOTBALL CLUB LIMITED | £77k | FY2025 | |
| THE OAK AND FURROWS WILDLIFE RESCUE CENTRE | £32k | FY2025 | |
| OAK APPLE TRUST | £148k | FY2025 | |
| OAK COMMUNITY CHURCH | £49k | FY2025 | |
| OAK FARM LEARNING AND ACTIVITIES CENTRE | £375k | FY2025 | |
| OAK FARM PRESCHOOL | £175k | FY2025 | |
| OAK FIELD SCHOOL FUND | £49k | FY2025 | |
| THE OAK FOUNDATION | £1.2m | FY2025 | going concern |
| OAK GROVE COMMUNITY CHURCH | £215k | FY2025 | reserves below policy trustee payments |
| OAK HEIGHTS SCHOOL | £345k | FY2025 | going concern trustee payments |
| OAK HILL ASD CHILDCARE | £78k | FY2025 | reserves below policy |
| OAK HILL COMMUNITY NURSERY | £775k | FY2025 | |
| OAK LODGE FRIENDS OF THE SCHOOL ASSOCIATION | £37k | FY2025 | |
| OAK MEDICAL FOUNDATION | £35k | FY2026 | |
| THE OAK TREE ANGLICAN FELLOWSHIP TRUST | £83k | FY2025 | |
| OAK TREE ANIMALS' CHARITY | £2.6m | FY2024 | going concern |
| OAK TREE FARM RURAL PROJECT LIMITED | £432k | FY2024 | |
| OAK TREE HOMES TRUST | £64k | FY2025 | |
| OAK TRUST | £36k | FY2025 | |
| OAKDALE HOUSE TRUST | £67k | FY2025 | |
| THE OAKDALE JUNIOR SCHOOL PARENT TEACHER ASSOCIATION | £28k | FY2025 | |
| THE OAKDALE TRUST | £475k | FY2025 | |
| OAKE AND DISTRICT VILLAGE HALL AND RECREATION GROUND | £37k | FY2025 | |
| OAKENGATES UNITED CHURCH PRE-SCHOOL | £31k | FY2026 | |
| OAKENSHAW COMMUNITY ASSOCIATION | £36k | FY2025 | |
| THE OAKES TRUST (SHEFFIELD) | £670k | FY2025 | |
| OAKEY DOKEYS PRE SCHOOL LIMITED | £175k | FY2025 | |
| OAKFIELD (EASTON MAUDIT) LIMITED | £2.8m | FY2025 | |
| OAKFIELD ASSOCIATION OF FRIENDS | £37k | FY2025 | |
| OAKFIELD PLAYGROUP | £42k | FY2024 | |
| OAKFIELDS PARENT TEACHERS ASSOCIATION | £33k | FY2025 | |
| OAKFORD VILLAGE HALL | £29k | FY2025 | |
| THE OAKGROVE FOUNDATION | £301k | FY2025 | |
| OAKHALL CHURCH, CATERHAM | £567k | FY2025 | |
| OAKHAM ALL SAINTS SCOUT GROUP | £25k | FY2025 | |
| OAKHAM BAPTIST CHURCH | £203k | FY2024 | |
| OAKHAM EVANGELICAL CHURCH | £40k | FY2025 | |
| OAKHAM SCHOOL | £31.7m | FY2025 | reserves below policy |
| OAKHANGER PROJECT | £44k | FY2025 | |
| THE OAKHAVEN TRUST | £10.2m | FY2025 | |
| OAKHILL COLLEGE CHARITABLE TRUST | £78k | FY2025 | |
| OAKHILL EDUCATION TRUST | £1.8m | FY2025 | |
| OAKHYRST GRANGE SCHOOL CIO | £1.8m | FY2025 | |
| THE OAKLAND FOUNDATION LIMITED | £161k | FY2025 | |
| THE OAKLANDS | £1.4m | FY2025 | trustee payments |
| Oaklands Church | £167k | FY2025 | |
| OAKLANDS FIRST SCHOOL ASSOCIATION | £47k | FY2025 | |
| OAKLANDS PFA | £55k | FY2026 | |
| OAKLANDS SCHOOLS PARENT TEACHER ASSOCIATION | £41k | FY2025 | |
| THE OAKLEA TRUST | £10.7m | FY2025 | |
| OAKLEAF ENTERPRISE | £1.3m | FY2025 | |
| THE OAKLEY CHARITABLE TRUST | £84k | FY2025 | |
| OAKLEY HOLIDAYS | £66k | FY2024 | |
| OAKLEY KINDERGARTEN | £354k | FY2024 | trustee payments |
| OAKLEY PRE-SCHOOL CIO | £181k | FY2025 | |
| OAKLEY RECREATIONAL ASSOCIATION | £41k | FY2025 | |
| OAKLEY RURAL DAY CARE CENTRE | £65k | FY2025 | |
| OAKLEY VALE COMMUNITY CENTRE | £47k | FY2025 | |
| OAKLEY VILLAGE HALL | £37k | FY2025 | |
| THE OAKMOOR TRUST | £31k | FY2026 | |
| OAKONSULT DISABILITIES OUTREACH | £33k | FY2026 | |
| OAKRIDGE BAPTIST CHURCH | £60k | FY2025 | reserves below policy |
| OAKRIDGE WEST COMMUNITY ASSOCIATION CIO | £20k | FY2024 | |
| OAKS COMMUNITY CHURCH | £94k | FY2025 | going concern |
| OAKS COMMUNITY CHURCH NORTH EAST DERBYSHIRE | £151k | FY2025 | |
| OAKS MARTIAL ARTS FOUNDATION | £113k | FY2025 | |
| THE OAKS NURSERY | £145k | FY2025 | |
| OAKS TRUST | £201k | FY2025 | |
| OAKTREE FAMILY GROUP LTD | £1.1m | FY2025 | going concern |
| Oakway Nursery | £94k | FY2025 | |
| OAKWOOD ASSOCIATION | £26k | FY2025 | |
| OAKWOOD COMMUNITY CENTRE | £36k | FY2025 | |
| OAKWOOD COMMUNITY PLAYGROUP | £225k | FY2025 | |
| OAKWOOD DOG RESCUE | £366k | FY2025 | |
| OAKWOOD EDUCATION | £596k | FY2025 | |
| OAKWOOD PARK GRAMMAR SCHOOL TRUST | £87k | FY2025 | |
| OAKWOOD ROAD COMMUNITY CENTRE TRUST BLURTON | £28k | FY2025 | |
| OAKWOOD SCHOOL | £4.3m | FY2025 | |
| OAKWOOD TENNIS CLUB | £48k | FY2025 | |
| OAKWOOD YOUTH CHALLENGE | £2.0m | FY2025 | |
| OAKWORTH COMMUNITY TRUST | £46k | FY2025 | |
| OAKWORTH PRE SCHOOL | £93k | FY2025 | |
| Oarsome Chance | £1.5m | FY2025 | |
| THE OASES FOUNDATION INTERNATIONAL | £126k | FY2025 | trustee payments |
| OASIS | £877k | FY2025 | |
| OASIS AQUILA HOUSING | £4.5m | FY2025 | |
| OASIS CANCER TRUST | £29k | FY2024 | |
| OASIS CARE AND TRAINING AGENCY (OCTA) | £10.6m | FY2025 | |
| OASIS CARE SUPPORT SERVICES | £73k | FY2025 | |
| OASIS CENTRAL CHURCH | £69k | FY2025 | |
| THE OASIS CENTRE COMMUNITY PROJECT-EAST MANCHESTER | £631k | FY2024 | |
| OASIS CHARITABLE TRUST | £344.5m | FY2025 | |
| Oasis Charity Limited | £426k | FY2025 | trustee payments |
| OASIS CHILDREN'S VENTURE | £1.4m | FY2025 | going concern |
| OASIS CHRISTIAN FELLOWSHIP | £32k | FY2025 | |
| OASIS CHRISTIAN FELLOWSHIP (TELFORD) | £92k | FY2024 | |
| OASIS CHRISTIAN TRUST | £151k | FY2024 | going concern |
| OASIS CHURCH (BIRMINGHAM) | £376k | FY2025 | |
| OASIS CHURCH (CHADWELL HEATH) CHARITABLE TRUST | £33k | FY2025 | |
| THE OASIS CHURCH - NEASDEN | £31k | FY2025 | |
| OASIS CHURCH COLLIERS WOOD | £1.0m | FY2024 | |
| OASIS CHURCH FELTHAM | £110k | FY2024 | reserves below policy |
| Oasis Church Hereford | £142k | FY2024 | |
| Oasis Church Southampton | £220k | FY2025 | |
| OASIS COMMUNITY CHURCH (RETFORD) | £31k | FY2025 | |
| OASIS COMMUNITY CHURCH (WORKSOP) | £301k | FY2025 | |
| Oasis Community Church Aberdare | £447k | FY2025 | |
| OASIS COMMUNITY HUB : WATERLOO | £2.6m | FY2025 | |
| OASIS COMMUNITY HUB: ASHBURTON PARK | £226k | FY2025 | |
| Oasis Community Hub: Bath | £272k | FY2025 | reserves below policy |
| OASIS COMMUNITY HUB: BLAKENHALE | £134k | FY2025 | |
| OASIS COMMUNITY HUB: FIR VALE | £124k | FY2025 | |
| OASIS COMMUNITY HUB: FOUNDRY & BOULTON | £169k | FY2025 | reserves below policy |
| OASIS COMMUNITY HUB: HADLEY | £649k | FY2025 | reserves below policy |
| OASIS COMMUNITY HUB: HENDERSON AVENUE | £189k | FY2025 | |
| OASIS COMMUNITY HUB: HOBMOOR | £263k | FY2025 | reserves below policy |
| OASIS COMMUNITY HUB: ISLE OF SHEPPEY | £67k | FY2025 | |
| OASIS COMMUNITY HUB: LISTER PARK | £80k | FY2025 | |
| OASIS COMMUNITY HUB: MAYFIELD | £90k | FY2025 | |
| OASIS COMMUNITY HUB: MEDIACITYUK | £53k | FY2025 | reserves below policy |
| OASIS COMMUNITY HUB: NORTH BRISTOL | £184k | FY2025 | reserves below policy |
| OASIS COMMUNITY HUB: OLDHAM | £1.0m | FY2025 | |
| OASIS COMMUNITY HUB: SOUTH BRISTOL | £328k | FY2025 | |
| OASIS COMMUNITY HUB: WARNDON | £131k | FY2025 | |
| OASIS COMMUNITY HUB: WINTRINGHAM | £163k | FY2025 | reserves below policy |
| OASIS COMMUNITY PARTNERSHIPS | £8.9m | FY2025 | |
| OASIS COMMUNITY TRUST | £36k | FY2025 | |
| OASIS DOMESTIC ABUSE SERVICE LTD | £3.2m | FY2025 | |
| OASIS FAMILY CHURCH WITNEY | £37k | FY2025 | |
| OASIS GLOBAL TRUST | £40k | FY2025 | |
| OASIS INTERNATIONAL ASSOCIATION | £119k | FY2025 | reserves below policy |
| OASIS LORD'S HILL | £541k | FY2025 | |
| Oasis Mental Health Support | £408k | FY2025 | reserves below policy going concern |
| OASIS OF HOPE FOUNDATION-UK | £104k | FY2025 | |
| OASIS OF LOVE INTERNATIONAL CENTRE | £256k | FY2025 | trustee payments |
| THE OASIS PARTNERSHIP UK | £1.7m | FY2024 | |
| Oasis Project | £1.5m | FY2025 | |
| THE OASIS PROJECT (THE GAMBIA) | £67k | FY2024 | |
| OASIS RELIEF | £60k | FY2025 | |
| OAT STREET UNITARIAN CHAPEL | £32k | FY2025 | |
| OATLANDS COUNTY JUNIOR SCHOOL PARENT TEACHER ASSOCIATION | £28k | FY2025 | |
| OATLANDS INFANT SCHOOL PARENT TEACHER ASSOCIATION | £31k | FY2025 | |
| OATLANDS PRE-SCHOOL | £210k | FY2025 | |
| OATLANDS SCHOOL PARENT TEACHER ASSOCIATION | £86k | FY2025 | |
| OATLANDS SCOUT GROUP | £50k | FY2024 | |
| OATLANDS VILLAGE HALL | £29k | FY2025 | |
| Obesity UK | £33k | FY2025 | |
| OBEX FOUNDATION | £294k | FY2025 | |
| OBLIQUE ARTS | £132k | FY2025 | |
| OBLONG LTD | £285k | FY2025 | |
| OBSTETRICS ANAESTHETISTS ASSOCIATION | £835k | FY2025 | |
| OC INTERNATIONAL UK | £33k | FY2025 | |
| OCCA House | £1.1m | FY2025 | |
| OCCTOPUS OXFORD COLON CANCER TRUST | £41k | FY2025 | |
| OCD ACTION | £346k | FY2025 | |
| OCD-UK | £208k | FY2024 | |
| Ocean City College Ltd | £201k | FY2025 | |
| Ocean Conservation Trust Limited | £7.5m | FY2025 | |
| OCEAN DIVE | £26k | FY2025 | |
| OCEAN FAMILY FOUNDATION | £329k | FY2025 | |
| Ocean Generation | £705k | FY2025 | reserves below policy |
| OCEAN REGENERATION TRUST | £149k | FY2025 | |
| OCEAN ROAD CENTRE | £1.9m | FY2025 | |
| OCEAN STARS TRUST | £107k | FY2025 | reserves below policy |
| THE OCEAN TRUST | £145k | FY2025 | |
| OCEAN WOMEN'S ASSOCIATION | £56k | FY2025 | |
| OCEAN YOUTH CONNEXIONS | £193k | FY2025 | going concern |
| OCEAN YOUTH TRUST NORTH | £233k | FY2025 | |
| OCEAN YOUTH TRUST SOUTH | £852k | FY2025 | |
| OCEANA UK | £2.3m | FY2024 | |
| OCEANS OF HOPE UK | £96k | FY2025 | |
| OCKENDEN INTERNATIONAL | £80k | FY2025 | |
| OCKMENT CENTRE | £110k | FY2025 | |
| OCS FOUNDATION | £208k | FY2025 | |
| THE OCTAGON COMMUNITY CENTRE MALVERN | £73k | FY2025 | |
| OCTAGON THEATRE TRUST LIMITED | £4.2m | FY2025 | |
| OCTAVIA FOUNDATION | £171k | FY2025 | reserves below policy |
| OCTAVIA HILL BIRTHPLACE MUSEUM TRUST | £28k | FY2025 | |
| THE OCTOBER CLUB | £45k | FY2025 | reserves below policy going concern |
| OCTOBER GALLERY TRUST | £1.2m | FY2025 | |
| OCTOPUS CHILDREN'S DAYCARE | £223k | FY2025 | |
| OCTOPUS COMMUNITY NETWORK | £239k | FY2025 | |
| THE OCTOPUS FOUNDATION | £329k | FY2025 | |
| Ocular Melanoma UK | £181k | FY2025 | |
| OD YOSEF HAI YESHIVA COLLEGE OF RABBINICAL STUDIES | £375k | FY2024 | trustee payments |
| ODCOMBE VILLAGE HALL | £27k | FY2025 | |
| ODD ARTS | £856k | FY2025 | reserves below policy |
| ODD EYES THEATRE | £84k | FY2025 | |
| THE ODDBALLS FOUNDATION | £776k | FY2025 | |
| ODDMENTS THEATRE COMPANY | £152k | FY2025 | |
| THE ODELL TRUST | £796k | FY2025 | |
| ODI Global | £34.8m | FY2025 | |
| THE ODIHAM CONSOLIDATED CHARITIES | £432k | FY2025 | |
| ODIHAM COTTAGE HOSPITAL COMBINED TRUSTS (INCORPORATING THE LEAGUE OF FRIENDS OF OCH) LIMITED | £294k | FY2025 | |
| ODIHAM DISTRICT SCOUT COUNCIL | £150k | FY2024 | |
| ODIHAM DISTRICT U3A | £92k | FY2025 | |
| ODIHAM PRE-SCHOOL (LEAPFROGS) | £221k | FY2025 | |
| ODIN CHARITABLE TRUST | £313k | FY2025 | |
| ODIYANA KADAMPA MEDITATION CENTRE LTD | £68k | FY2025 | |
| ODYSSEUS UNBOUND FOUNDATION | £92k | FY2024 | |
| THE ODYSSEY CONSERVATION TRUST | £94k | FY2025 | |
| ODYSSEY PROJECT LIMITED | £69k | FY2025 | |
| OEDIPA | £98k | FY2025 | |
| THE OFENHEIM CHARITABLE TRUST | £554k | FY2025 | |
| OFF THE FENCE TRUST LIMITED | £595k | FY2025 | |
| OFF THE RECORD | £300k | FY2025 | |
| OFF THE RECORD (BRISTOL) | £3.5m | FY2025 | |
| OFF THE RECORD (SOUTH EAST HAMPSHIRE) | £526k | FY2025 | |
| OFF THE RECORD (TWICKENHAM) | £306k | FY2025 | |
| OFF THE RECORD - BATH & NORTH EAST SOMERSET | £998k | FY2025 | |
| OFF THE RECORD COUNSELLING SERVICE (NORFOLK) LIMITED | £126k | FY2025 | reserves below policy |
| Off The Ropes (OTR) | £123k | FY2025 | |
| OFF THE STREETS | £270k | FY2024 | |
| OFF WEST END PLAYS & PLAYWRIGHTS LTD | £82k | FY2025 | trustee payments |
| OFFA MISSION AREA | £283k | FY2024 | |
| OFFENHAM VILLAGE HALL | £53k | FY2025 | going concern |
| OFFHAM VILLAGE HALL | £35k | FY2024 | |
| THE OFFICE OF HEALTH ECONOMICS | £5.3m | FY2024 | reserves below policy trustee payments |
| THE OFFICE OF THE INDEPENDENT ADJUDICATOR FOR HIGHER EDUCATION | £9.1m | FY2025 | |
| THE OFFICERS' MESS FUND, COMMANDO TRAINING CENTRE ROYAL MARINES | £183k | FY2026 | |
| OFFICERS' MESS RAF BENSON | £168k | FY2025 | qualified opinion |
| THE OFFICERS' MESS RAF BOSCOMBE DOWN | £96k | FY2025 | qualified opinion |
| OFFICERS' MESS RAF CONINGSBY | £217k | FY2025 | |
| OFFICERS' MESS RAF COSFORD | £132k | FY2025 | |
| OFFICERS' MESS RAF LEEMING | £102k | FY2025 | |
| OFFICERS' MESS RAF SHAWBURY | £116k | FY2025 | |
| OFFICERS' MESS RAF VALLEY | £105k | FY2025 | |
| THE OFFICERS' MESS, JOINT SERVICE COMMAND AND STAFF COLLEGE (JSCSC), SHRIVENHAM | £224k | FY2025 | |
| OFFINGTON PARK METHODIST CHURCH | £313k | FY2025 | |
| OFFMORE EVANGELICAL CHURCH TRUST | £44k | FY2025 | |
| THE OFFORDS RECREATION HUT, LOCALLY KNOWN AS OFFORD VILLAGE HALL | £54k | FY2025 | |
| THE OFFSHOOT FOUNDATION | £242k | FY2025 | |
| OFFTON AND WILLISHAM VILLAGE HALL | £27k | FY2025 | |
| OFFWELL RECREATION GROUND AND VILLAGE HALL CHARITY | £62k | FY2025 | |