| O DDRWS I DDRWS | £388k | FY2025 | |
| O&G SCHREIBER CHARITABLE TRUST | £158k | FY2024 | |
| 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 | |
| OADBY AND WIGSTON MUSLIM ASSOCIATION | £347k | FY2025 | |
| OADBY BAPTIST CHURCH | £137k | FY2023 | |
| Oadby Community Hub | £477k | 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 PRESCHOOL | £175k | FY2025 | |
| THE OAK FOUNDATION | £1.2m | FY2025 | going concern |
| OAK GROVE COMMUNITY CHURCH | £215k | FY2025 | reserves below policy trustee payments |
| OAK HILL ASD CHILDCARE | £78k | FY2025 | reserves below policy |
| OAK TREE ANIMALS' CHARITY | £2.6m | FY2024 | going concern |
| OAK TREE HOMES TRUST | £64k | FY2025 | |
| OAK TRUST | £36k | FY2025 | |
| OAKDALE HOUSE TRUST | £53k | FY2024 | |
| THE OAKDALE JUNIOR SCHOOL PARENT TEACHER ASSOCIATION | £28k | FY2025 | |
| THE OAKDALE TRUST | £475k | FY2025 | |
| OAKE AND DISTRICT VILLAGE HALL AND RECREATION GROUND | £37k | FY2025 | |
| OAKENSHAW COMMUNITY ASSOCIATION | £36k | FY2025 | |
| THE OAKES TRUST (SHEFFIELD) | £670k | FY2025 | |
| OAKFIELD (EASTON MAUDIT) LIMITED | £2.8m | FY2024 | |
| OAKFIELD PLAYGROUP | £42k | FY2024 | |
| OAKFIELDS PARENT TEACHERS ASSOCIATION | £33k | FY2025 | |
| OAKFORD VILLAGE HALL | £29k | FY2025 | |
| OAKHALL CHURCH, CATERHAM | £567k | FY2024 | |
| OAKHAM ALL SAINTS SCOUT GROUP | £25k | FY2025 | |
| OAKHAM BAPTIST CHURCH | £203k | FY2024 | |
| OAKHAM EVANGELICAL CHURCH | £40k | FY2025 | |
| OAKHAM SCHOOL | £31.7m | FY2024 | |
| 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 OAKLANDS | £1.4m | FY2025 | trustee payments |
| Oaklands Church | £167k | FY2025 | |
| OAKLANDS PFA | £39k | FY2025 | |
| OAKLANDS SCHOOLS PARENT TEACHER ASSOCIATION | £41k | FY2025 | |
| THE OAKLEA TRUST | £10.7m | FY2025 | |
| OAKLEAF ENTERPRISE | £1.3m | FY2025 | |
| OAKLEY HOLIDAYS | £66k | FY2024 | |
| OAKLEY KINDERGARTEN | £354k | FY2024 | trustee payments |
| OAKLEY PRE-SCHOOL CIO | £181k | FY2025 | |
| OAKLEY RECREATIONAL ASSOCIATION | £41k | FY2025 | |
| OAKLEY VILLAGE HALL | £37k | FY2025 | |
| THE OAKMOOR TRUST | £29k | FY2025 | |
| OAKRIDGE BAPTIST CHURCH | £60k | FY2025 | reserves below policy |
| OAKRIDGE WEST COMMUNITY ASSOCIATION CIO | £30k | FY2024 | |
| OAKS COMMUNITY CHURCH NORTH EAST DERBYSHIRE | £151k | FY2025 | |
| THE OAKS NURSERY | £145k | FY2025 | |
| OAKTREE FAMILY GROUP LTD | £1.1m | FY2025 | going concern |
| Oakway Nursery | £94k | FY2025 | |
| OAKWOOD COMMUNITY CENTRE | £36k | FY2025 | |
| OAKWOOD COMMUNITY PLAYGROUP | £225k | FY2025 | |
| OAKWOOD DOG RESCUE | £366k | FY2024 | reserves below policy |
| OAKWOOD EDUCATION | £596k | FY2025 | |
| OAKWOOD SCHOOL | £4.3m | FY2025 | |
| OAKWOOD TENNIS CLUB | £48k | FY2025 | |
| OAKWOOD YOUTH CHALLENGE | £1.9m | FY2024 | |
| OAKWORTH COMMUNITY TRUST | £47k | FY2024 | |
| OAKWORTH PRE SCHOOL | £93k | FY2025 | |
| Oarsome Chance | £1.5m | FY2024 | |
| OASIS | £877k | FY2025 | |
| OASIS AQUILA HOUSING | £4.5m | FY2025 | |
| OASIS CANCER TRUST | £29k | FY2024 | |
| OASIS CARE AND TRAINING AGENCY (OCTA) | £10.6m | FY2025 | |
| OASIS CENTRAL CHURCH | £69k | FY2025 | |
| OASIS CHARITABLE TRUST | £344.5m | FY2025 | |
| OASIS CHILDREN'S VENTURE | £1.4m | FY2025 | going concern |
| OASIS CHRISTIAN TRUST | £137k | FY2023 | |
| 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 | FY2023 | |
| OASIS COMMUNITY HUB : WATERLOO | £2.6m | FY2025 | |
| 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: 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: OLDHAM | £1.0m | FY2025 | |
| OASIS COMMUNITY HUB: WARNDON | £131k | FY2025 | |
| 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 OF HOPE FOUNDATION-UK | £70k | FY2024 | |
| THE OASIS PARTNERSHIP UK | £1.7m | FY2024 | |
| Oasis Project | £1.5m | FY2025 | |
| THE OASIS PROJECT (THE GAMBIA) | £67k | FY2024 | |
| OAT STREET UNITARIAN CHAPEL | £32k | FY2025 | |
| OATLANDS INFANT SCHOOL PARENT TEACHER ASSOCIATION | £31k | FY2025 | |
| OATLANDS PRE-SCHOOL | £210k | FY2025 | |
| OATLANDS SCHOOL PARENT TEACHER ASSOCIATION | £86k | FY2025 | |
| OBEX FOUNDATION | £294k | FY2025 | |
| OBLONG LTD | £285k | FY2025 | |
| OBSTETRICS ANAESTHETISTS ASSOCIATION | £835k | FY2024 | |
| OC INTERNATIONAL UK | £33k | FY2025 | |
| OCCA House | £1.1m | FY2025 | |
| OCD-UK | £208k | FY2024 | |
| Ocean Conservation Trust Limited | £7.5m | FY2025 | |
| OCEAN DIVE | £26k | FY2025 | |
| OCEAN FAMILY FOUNDATION | £329k | FY2024 | |
| OCEAN REGENERATION TRUST | £149k | FY2024 | |
| OCEAN ROAD CENTRE | £1.9m | FY2024 | |
| OCEAN STARS TRUST | £107k | FY2025 | reserves below policy |
| OCEAN YOUTH CONNEXIONS | £193k | FY2025 | going concern |
| OCEAN YOUTH TRUST NORTH | £233k | FY2025 | |
| OCEAN YOUTH TRUST SOUTH | £852k | FY2024 | |
| OCEANA UK | £2.7m | FY2024 | |
| OCEANS OF HOPE UK | £96k | FY2025 | |
| THE OCTAGON COMMUNITY CENTRE MALVERN | £73k | FY2025 | |
| OCTAGON THEATRE TRUST LIMITED | £4.2m | FY2025 | |
| OCTAVIA FOUNDATION | £171k | FY2025 | reserves below policy |
| OCTOBER GALLERY TRUST | £1.5m | FY2024 | |
| THE OCTOPUS FOUNDATION | £329k | FY2024 | |
| 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 DISTRICT U3A | £92k | FY2025 | |
| ODIN CHARITABLE TRUST | £313k | FY2024 | |
| ODIYANA KADAMPA MEDITATION CENTRE LTD | £68k | FY2024 | |
| ODYSSEUS UNBOUND FOUNDATION | £92k | FY2024 | |
| THE ODYSSEY CONSERVATION TRUST | £94k | FY2025 | |
| OEDIPA | £98k | FY2025 | |
| THE OFENHEIM CHARITABLE TRUST | £554k | FY2025 | |
| OFF THE FENCE TRUST LIMITED | £595k | FY2025 | |
| OFF THE RECORD (BRISTOL) | £3.5m | FY2025 | |
| OFF THE RECORD (SOUTH EAST HAMPSHIRE) | £526k | FY2025 | |
| 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 | |
| OFFICERS' MESS RAF BENSON | £168k | FY2025 | qualified opinion |
| THE OFFICERS' MESS RAF BOSCOMBE DOWN | £96k | FY2025 | qualified opinion |
| OFFICERS' MESS RAF CONINGSBY | £217k | FY2024 | |
| OFFICERS' MESS RAF LEEMING | £102k | FY2024 | |
| OFFICERS' MESS RAF SHAWBURY | £116k | FY2025 | |
| OFFINGTON PARK METHODIST CHURCH | £313k | 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 | |
| THE OGDEN TRUST | £1.2m | FY2025 | |
| THE OGILVIE CHARITIES | £1.3m | FY2023 | |
| THE OGLE CHRISTIAN TRUST | £60k | FY2024 | trustee payments |
| OGLESBY CHARITABLE TRUST | £1.0m | FY2024 | |
| OGMORE BY SEA CHURCH | £66k | FY2025 | |
| THE OGMORE-BY-SEA VILLAGE HALL ASSOCIATION | £69k | FY2025 | |
| OGWELL PRE - SCHOOL | £72k | FY2024 | |
| OGWEN VALLEY MOUNTAIN RESCUE CIO | £166k | FY2024 | |
| OHANA ANIMAL CHARITY | £116k | FY2025 | |
| OHAVEI TORASECHA | £119k | FY2024 | |
| OHEL DAVID (LI) | £26k | FY2024 | |
| OHEL SHOLOM | £149k | FY2025 | |
| OHEL ZADIKIM LTD | £34k | FY2025 | reserves below policy |
| OHOLEI YOSEF YITZCHOK LUBAVITCH SCHOOLS | £294k | FY2024 | |
| OHP Trust | £117k | FY2025 | |
| OHR CHAIM LIMITED | £37k | FY2025 | |
| OHR EMES LTD | £2.4m | FY2025 | |
| OHR TORAH LTD | £243k | FY2024 | |
| OHR YERUSHALAYIM SYNAGOGUE | £167k | FY2024 | |
| OHR YISROEL | £27k | FY2025 | |
| OIKOS- BRIGG | £63k | FY2025 | |
| OIL AND COLOUR CHEMISTS' ASSOCIATION | £223k | FY2024 | |
| OINOUSSAI BENEVOLENT FUND | £148k | FY2023 | |
| OIRAYSA LIMITED | £103k | FY2024 | |
| THE OITIJ-JO COLLECTIVE | £166k | FY2024 | |
| OIZER CHARITABLE TRUST | £955k | FY2025 | |
| OIZER DALIM TRUST | £122k | FY2025 | |
| OJAALA WELFARE FOUNDATION | £39k | FY2025 | |
| THE OK FOUNDATION | £98k | FY2024 | |
| THE OKAPI FUND FOR NATURE CONSERVATION IN THE DEMOCRATIC REPUBLIC OF CONGO | £1.2m | FY2023 | |
| OKEHAMPTON DISTRICT COMMUNITY TRANSPORT GROUP | £100k | FY2025 | |
| OKRE: OPENING KNOWLEDGE ACROSS RESEARCH AND ENTERTAINMENT | £999k | FY2025 | reserves below policy trustee payments |
| OKS EDUCATIONAL AND BENEVOLENT TRUST | £26k | FY2025 | |
| OL PEJETA CONSERVANCY UK | £1.3m | FY2025 | qualified opinion |
| OLAM CHESED YIBONEH | £397k | FY2024 | |
| OLAYINKA ADERINKOLA AKINRINOLA FOUNDATION UK | £28k | FY2025 | reserves below policy going concern |
| THE OLD ALBANIAN SPORTS ASSOCIATION LIMITED | £1.1m | FY2024 | qualified opinion |
| THE OLD BANK, CAMELFORD | £189k | FY2025 | |
| OLD BAPTIST UNION | £27k | FY2025 | |
| OLD BASING SCOUTS | £30k | FY2024 | |
| OLD BATH HOUSE AND COMMUNITY CENTRE WOLVERTON | £82k | FY2025 | |
| OLD BEDIANS SPORTS CENTRE | £54k | FY2025 | going concern |
| OLD BUCKENHAM HALL (BRETTENHAM) EDUCATIONAL TRUST LTD | £4.2m | FY2024 | going concern |
| OLD BURIAL GROUND ESTATE | £91k | FY2025 | |
| OLD CALENDAR ORTHODOX CHURCH OF ANNUNCIATION | £73k | FY2025 | |
| OLD CATTON PRE-SCHOOL | £168k | FY2025 | |
| OLD CENTRALIANS TRUST | £152k | FY2025 | |
| THE OLD CHURCH, STOKE NEWINGTON | £118k | FY2025 | going concern |
| OLD COVENTRIANS RUGBY FOOTBALL CLUB | £183k | FY2025 | |
| THE OLD DALBY PRE-SCHOOL PLAYGROUP | £172k | FY2025 | |
| THE OLD DART FOUNDATION | £2.7m | FY2023 | |
| OLD EDWARDIANS' ASSOCIATION UK & IRELAND BRANCH | £46k | FY2024 | |
| THE OLD ELTHAMIANS' CHARITABLE TRUST | £82k | FY2025 | |
| THE OLD ENFIELD CHARITABLE TRUST | £685k | FY2025 | |
| OLD EPSOMIAN CLUB 1952 TRUST FUND | £89k | FY2025 | |
| OLD ETONIAN TRUST(THE) | £415k | FY2023 | reserves below policy |
| OLD FELIXSTOWE COMMUNITY ASSOCIATION (OFCA) | £65k | FY2025 | |
| OLD FELIXSTOWE NURSERY | £186k | FY2025 | |
| Old Headington Village Hall | £49k | FY2024 | |
| OLD HEATH COMMUNITY CENTRE | £26k | FY2025 | |
| THE OLD HEREFORDIAN FUND CIO | £226k | FY2024 | |
| OLD HUNSTANTON VILLAGE HALL CIO | £73k | FY2024 | |
| OLD KILN MUSEUM CIO | £500k | FY2025 | |
| OLD LEAKE COMMUNITY CENTRE AND PLAYING FIELD COMMITTEE | £42k | FY2025 | |
| THE OLD LIBRARY | £35k | FY2025 | |
| THE OLD MARKET CHARITABLE TRUST | £558k | FY2025 | going concern |
| OLD MASONIANS BENEVOLENT AND GRANT FUND | £26k | FY2026 | |
| OLD MEETING HOUSE | £74k | FY2024 | |
| THE OLD MEETING HOUSE TRUST | £2.2m | FY2025 | |
| THE OLD MILL FOUNDATION | £84k | FY2025 | |
| OLD MOAT YOUTH OUTREACH PROJECT | £105k | FY2025 | |
| THE OLD NEEDLE WORKS FOUNDATION | £361k | FY2025 | |
| OLD NEWTON UNDER FIVES CIO | £93k | FY2025 | |
| OLD NEWTON WITH DAGWORTH AND GIPPING VILLAGE HALL AND PLAYING FIELD CHARITY | £39k | FY2025 | |
| OLD OWEN'S ASSOCIATION AND SPORTS CLUB LIMITED | £101k | FY2025 | |
| OLD PEOPLE'S WELFARE COMMITTEE FOR ROCHFORD AND DISTRICT | £26k | FY2025 | |
| OLD POSSUM'S PRACTICAL TRUST | £189k | FY2025 | |
| OLD POST REGENERATION ASSOCIATION | £94k | FY2025 | |
| THE OLD QUARRY ADVENTURE PLAYGROUND LTD | £350k | FY2024 | |
| OLD REDINGENSIANS ASSOCIATION LIMITED | £39k | FY2025 | |
| THE OLD ROFFENSIAN SOCIETY LIMITED | £41k | FY2024 | |
| OLD ROYAL NAVAL COLLEGE CHAPEL FUND | £69k | FY2025 | |
| OLD RUTLISHIANS' ASSOCIATION | £1.1m | FY2025 | |
| THE OLD SCHOOL HALL MANAGEMENT COMMITTEE | £26k | FY2025 | |
| THE OLD SCHOOL HENSTEAD EDUCATIONAL TRUST LIMITED | £515k | FY2025 | |