| THE OLD SCHOOLHOUSE COMMUNITY PROJECT | £257k | FY2025 | |
| OLD SHARLSTON CRICKET CLUB | £80k | FY2025 | |
| OLD SODBURY VILLAGE HALL | £70k | FY2025 | |
| Old Southendian YFC | £28k | FY2025 | |
| THE OLD SPOTTED DOG GROUND TRUST LIMITED | £176k | FY2025 | |
| OLD STEVENAGE COMMUNITY ASSOCIATION | £71k | FY2025 | |
| OLD STRATFORD PARISH CHARITY | £101k | FY2026 | |
| OLD STRATFORD PRESCHOOL PLAYGROUP | £162k | FY2025 | |
| OLD SWINFORD HOSPITAL | £1.7m | FY2025 | |
| OLD THOMIANS' ASSOCIATION IN THE UNITED KINGDOM | £42k | FY2025 | |
| OLD TOWN HALL | £82k | FY2025 | |
| OLD TOWN YOUTH CLUB | £28k | FY2025 | |
| OLD TRAFFORD MUSLIM SOCIETY | £368k | FY2025 | reserves below policy |
| THE OLD VIC ENDOWMENT TRUST | £106k | FY2024 | |
| THE OLD VIC THEATRE TRUST 2000 | £25.5m | FY2025 | |
| OLD VICARAGE SCHOOL TRUST | £4.0m | FY2025 | |
| OLD WARWICKIAN TRUST | £69k | FY2025 | |
| THE OLD WATERWORKS | £32k | FY2024 | |
| THE OLD WELLINGTONIAN SOCIETY CHARITABLE TRUST | £66k | FY2025 | going concern |
| OLD WINDSOR MEMORIAL HALL | £47k | FY2025 | |
| OLD WINDSOR PRE-SCHOOL | £49k | FY2024 | going concern |
| OLD WOKING AND DISTRICT COMMUNITY CENTRE | £141k | FY2025 | trustee payments |
| OLDALONE UK | £79k | FY2025 | |
| OLDBURY BUSY BEES | £105k | FY2025 | |
| Oldbury on Severn War Memorial Hall | £47k | FY2025 | |
| OLDCASTLE PRIMARY SCHOOL | £52k | FY2025 | |
| OLDEN COMMUNITY GARDEN | £32k | FY2025 | |
| OLDER CITIZENS ADVOCACY YORK | £108k | FY2025 | going concern |
| OLDER PEOPLE'S ACTION IN THE LOCALITY | £571k | FY2025 | |
| OLDER PEOPLE'S NEW OPPORTUNITIES CONSORTIUM (OPNOCS) | £28k | FY2025 | |
| OLDFIELD PRE-SCHOOL | £152k | FY2025 | |
| OLDHAM ATHLETIC COMMUNITY TRUST | £464k | FY2025 | |
| OLDHAM BETHEL CHURCH | £90k | FY2024 | |
| OLDHAM CANCER SUPPORT CENTRE | £75k | FY2025 | trustee payments |
| OLDHAM CATS | £173k | FY2025 | |
| Oldham Chapel | £30k | FY2024 | |
| THE OLDHAM COLISEUM THEATRE LIMITED | £667k | FY2025 | |
| THE OLDHAM ENGINEERING GROUP TRAINING ASSOCIATION LIMITED | £374k | FY2024 | |
| THE OLDHAM ENTERPRISE TRUST CIO | £44k | FY2025 | |
| THE OLDHAM FOUNDATION | £45k | FY2025 | |
| OLDHAM INSPIRING YOUTH | £31k | FY2025 | going concern |
| OLDHAM INTERFAITH FORUM | £62k | FY2025 | |
| OLDHAM MADANI ACADEMY | £68k | FY2025 | |
| OLDHAM METHODIST CIRCUIT | £311k | FY2025 | |
| OLDHAM MOUNTAIN RESCUE TEAM | £65k | FY2024 | |
| OLDHAM PERSONAL ADVOCACY LIMITED | £352k | FY2025 | |
| OLDHAM PLAY ACTION GROUP | £183k | FY2024 | |
| THE OLDHURST TRUST | £120k | FY2025 | |
| OLDLAND PRESCHOOL | £217k | FY2025 | |
| THE OLDLAND VILLAGE CLUB AND PUBLIC HALL | £57k | FY2024 | qualified opinion |
| OLDP CIO | £40k | FY2025 | |
| THE OLGA CHARITABLE TRUST | £59k | FY2025 | |
| OLIVE ACADEMY | £67k | FY2025 | |
| OLIVE BEARERS | £43k | FY2025 | |
| THE OLIVE BRANCH (FAITH IN ACTION) | £160k | FY2026 | |
| OLIVE BRANCH COUNSELLING | £103k | FY2025 | |
| OLIVE HIGH | £98k | FY2025 | |
| OLIVE LANTERN TRUST | £47k | FY2025 | |
| THE OLIVE MATTHEWS COLLECTION | £194k | FY2025 | |
| OLIVE PATHWAY | £229k | FY2025 | |
| THE OLIVE PROJECT | £205k | FY2025 | |
| OLIVE RIDLEY PROJECT | £574k | FY2024 | |
| OLIVE TREE EDUCATIONAL TRUST (RYK) | £60k | FY2025 | |
| THE OLIVE TREE TRUST | £32k | FY2025 | |
| THE OLIVE TRUST | £29k | FY2024 | going concern |
| THE OLIVER BORTHWICK MEMORIAL TRUST | £64k | FY2025 | |
| THE OLIVER CURD TRUST | £35k | FY2025 | |
| THE OLIVER FISHER SPECIAL CARE BABY TRUST | £190k | FY2023 | |
| OLIVER HEATON TRUST | £72k | FY2024 | going concern |
| THE OLIVER KING FOUNDATION | £251k | FY2024 | |
| THE OLIVER PLUNKETT POSTGRADUATE CENTRE CHARITABLE TRUST | £44k | FY2025 | |
| THE OLIVER STEEPER FOUNDATION | £101k | FY2025 | |
| OLIVET ASSEMBLY | £1.2m | FY2025 | |
| OLLINGHAM LIMITED | £453k | FY2025 | |
| OLLY'S FUTURE | £106k | FY2025 | |
| OLMEC | £242k | FY2025 | |
| OLNEY PRE-SCHOOL | £242k | FY2025 | |
| OLSEN ANIMAL TRUST | £1.0m | FY2023 | trustee payments |
| OLTON AND DISTRICT UNIVERSITY OF THE THIRD AGE (U3A) | £48k | FY2025 | |
| OLTON BAPTIST CHURCH | £134k | FY2025 | |
| THE OLTON PROJECT CIO | £496k | FY2024 | |
| THE OLWYN FOUNDATION | £200k | FY2023 | |
| OLYMPIAS MUSIC FOUNDATION | £349k | FY2025 | reserves below policy |
| OM International | £6.1m | FY2024 | reserves below policy |
| Omar Al Farouq Islamic Foundation | £25k | FY2025 | |
| OMAR FARUQUE MOSQUE AND CULTURAL CENTRE | £74k | FY2024 | |
| OMAR WELFARE HOUSE | £128k | FY2024 | |
| OMBERSLEY CHURCH HOUSES CHARITY | £78k | FY2025 | |
| OMBERSLEY CONSERVATION TRUST | £2.0m | FY2025 | trustee payments |
| OMEGA COMMUNITY LIVING LIMITED | £764k | FY2024 | |
| OMEGA RESEARCH FOUNDATION LIMITED | £655k | FY2025 | reserves below policy |
| OMF INTERNATIONAL (UK) | £6.0m | FY2023 | |
| OMID TRUST | £77k | FY2026 | going concern |
| OMME AYESHA ORGANISATION | £45k | FY2025 | |
| THE OMNIBUS SOCIETY | £94k | FY2024 | |
| OMNIMUSIC | £151k | FY2025 | |
| OMNOM GROUP LIMITED | £222k | FY2024 | reserves below policy |
| OMONIA YOUTH (UK) LIMITED | £239k | FY2025 | |
| ON FIRE MISSION | £56k | FY2025 | |
| ON THE GROUND 2030 | £65k | FY2025 | |
| ONCA TRUST LIMITED | £215k | FY2023 | not a going concern trustee payments |
| ONCE UPON A SMILE LIMITED | £531k | FY2025 | |
| ONDAWN LIMITED | £245k | FY2024 | |
| ONE AND ALL AID | £131k | FY2025 | |
| ONE CAUSE LIMITED | £162k | FY2025 | |
| ONE CHILD FOUNDATION (SRI LANKA) LTD | £131k | FY2024 | |
| ONE CHURCH | £1.1m | FY2024 | |
| ONE CHURCH BRIGHTON | £1.5m | FY2024 | trustee payments |
| ONE CHURCH LEICESTER | £1.6m | FY2024 | |
| ONE COMMUNITY FOUNDATION LIMITED | £1.5m | FY2024 | |
| ONE COMMUNITY GLOUCESTER | £37k | FY2024 | |
| ONE COMMUNITY LINK | £171k | FY2025 | going concern |
| ONE COMMUNITY ORGANISATION | £40k | FY2024 | reserves below policy |
| ONE DANCE UK | £853k | FY2025 | reserves below policy |
| THE ONE FEEDS TWO FOUNDATION | £137k | FY2024 | |
| ONE FOOTSTEP | £546k | FY2024 | |
| ONE FOR THE WORLD (OFTW) | £206k | FY2025 | going concern |
| THE ONE FOUNDATION | £3.0m | FY2024 | |
| ONE FROM THE HEART | £141k | FY2025 | trustee payments |
| One Fylde Limited | £14.2m | FY2025 | |
| ONE HEART - LEV ECHOD | £3.2m | FY2023 | |
| ONE HEART ISRAEL | £67k | FY2025 | |
| ONE HOME CHURCH | £1.5m | FY2024 | trustee payments |
| ONE HOPE FOUNDATION | £105k | FY2025 | |
| One Housing Foundation | £221k | FY2025 | reserves below policy not a going concern |
| ONE IN A MILLION (SPORTS) | £480k | FY2025 | |
| ONE IN FOUR (LONDON) | £240k | FY2025 | trustee payments |
| ONE KIND ACT | £534k | FY2023 | |
| ONE KING MINISTRIES | £84k | FY2025 | |
| ONE KNOWSLEY | £1.9m | FY2025 | reserves below policy |
| ONE LIFE AUTISM SUPPORT GROUP | £69k | FY2025 | |
| One Life Global Welfare | £861k | FY2025 | |
| THE ONE LOVE PROJECT | £118k | FY2025 | |
| ONE NATION | £23.1m | FY2025 | reserves below policy |
| ONE NEWHAM | £163k | FY2024 | reserves below policy |
| ONE PLUS ONE MARRIAGE AND PARTNERSHIP RESEARCH | £1.1m | FY2025 | |
| ONE PUNCH UK UNITED LTD | £26k | FY2025 | |
| ONE ROCK INTERNATIONAL | £66k | FY2024 | |
| ONE ROOF LEICESTER | £1.1m | FY2023 | |
| ONE SMALL THING | £4.3m | FY2025 | |
| ONE TENTH HUMAN | £146k | FY2025 | |
| ONE TO ONE | £112k | FY2025 | |
| ONE TO ONE CHILDREN'S FUND | £2.0m | FY2025 | |
| ONE TO ONE DEVELOPMENT TRUST | £162k | FY2025 | |
| ONE TO ONE PROJECT | £238k | FY2025 | trustee payments |
| ONE TRUST | £1.8m | FY2024 | |
| ONE UMMAH | £24.4m | FY2025 | |
| ONE VISION | £219k | FY2024 | |
| ONE VISION MEDIA | £1.4m | FY2025 | |
| ONE VISION PARTNERSHIP LIMITED | £41k | FY2025 | |
| ONE VOICE (IMMINGHAM DISTRICT) CIO | £91k | FY2025 | |
| ONE VOICE 4 TRAVELLERS LIMITED | £59k | FY2025 | |
| ONE WESTMINSTER | £1.2m | FY2025 | reserves below policy |
| ONE WORLD GROUP OXTED | £52k | FY2025 | |
| ONE WORLD MEDIA TRUST | £309k | FY2024 | reserves below policy |
| ONE WORLD RELIEF | £167k | FY2025 | |
| ONE YOUNG WORLD LIMITED | £8.7m | FY2024 | reserves below policy going concern |
| ONE-EIGHTY LIMITED | £1.2m | FY2025 | |
| ONE25 LIMITED | £1.6m | FY2025 | |
| ONEBILLION LEARNERS | £1.6m | FY2024 | |
| ONEBODYONEFAITH LTD. | £58k | FY2025 | not a going concern |
| ONERICHMOND | £294k | FY2025 | |
| ONERIO | £69k | FY2024 | |
| OneSchool Global UK | £55.5m | FY2024 | reserves below policy |
| Onesight Essilorluxottica Foundation | £135k | FY2024 | |
| ONESPIRIT INTERFAITH FOUNDATION | £201k | FY2025 | |
| THE ONGAR AND DISTRICT COMMUNITY ASSOCIATION | £92k | FY2025 | |
| THE ONGAR COMMUNITY SPORTS TRUST | £44k | FY2025 | |
| ONGO COMMUNITIES LIMITED | £1.9m | FY2025 | |
| ONIBURY VILLAGE HALL | £34k | FY2025 | |
| ONLY A PAVEMENT AWAY CIO | £1.0m | FY2025 | |
| ONLY BELIEVE CHRISTIAN ASSEMBLY | £121k | FY2025 | |
| ONLY CONNECT UK | £344k | FY2025 | going concern |
| THE ONSIDE FOUNDATION | £4.0m | FY2024 | |
| ONSIDE INDEPENDENT ADVOCACY | £3.7m | FY2025 | |
| ONSIDE YOUTH ZONES | £20.8m | FY2025 | |
| Onvero | £2.0m | FY2025 | |
| ONWARDS & UPWARDS | £1.2m | FY2025 | |
| OODIL | £104k | FY2025 | |
| OPA Cancer Charity | £224k | FY2025 | |
| OPDA | £538k | FY2025 | reserves below policy qualified opinion |
| OPEN ACCESS BOOK COLLECTIVE | £375k | FY2025 | |
| OPEN AGE | £1.8m | FY2025 | |
| OPEN AIR CAMPAIGNERS (GB) | £97k | FY2024 | |
| OPEN ARMS MALAWI | £363k | FY2025 | going concern |
| OPEN AWARDS | £2.7m | FY2025 | |
| THE OPEN BIBLE TRUST | £47k | FY2025 | |
| THE OPEN BIONICS FOUNDATION | £127k | FY2025 | |
| THE OPEN BLUE TRUST | £76k | FY2024 | trustee payments |
| THE OPEN CENTRE | £102k | FY2025 | |
| Open City | £1.1m | FY2025 | reserves below policy |
| OPEN CLASP THEATRE COMPANY | £396k | FY2025 | |
| OPEN COLLEGE NETWORK LONDON REGION | £2.1m | FY2025 | |
| THE OPEN COLLEGE NETWORK SOUTH EAST REGION LIMITED | £2.0m | FY2025 | |
| OPEN COLLEGE OF THE ARTS | £3.1m | FY2025 | reserves below policy |
| OPEN DOOR (NORTH EAST) | £659k | FY2025 | reserves below policy trustee payments |
| THE OPEN DOOR CENTRE (SWINDON & DISTRICT) LIMITED | £139k | FY2025 | |
| OPEN DOOR CHARITY | £2.2m | FY2025 | |
| OPEN DOOR CHURCH | £43k | FY2024 | going concern |
| OPEN DOOR CHURCH (ST. NEOTS) | £522k | FY2025 | |
| OPEN DOOR CHURCH SUNBURY | £137k | FY2025 | trustee payments |
| OPEN DOOR COLCHESTER | £56k | FY2024 | |
| OPEN DOOR COMMUNITY FOUNDATION | £129k | FY2025 | reserves below policy going concern |
| OPEN DOOR EXMOUTH | £381k | FY2025 | reserves below policy |
| OPEN DOOR PEOPLE | £167k | FY2025 | |
| OPEN DOOR SOCIETY LIMITED | £1.9m | FY2024 | |
| OPEN DOOR YOUTH COUNSELLING LTD | £144k | FY2025 | |
| OPEN DOOR, YOUNG PEOPLE'S CONSULTATION SERVICE | £1.6m | FY2025 | |
| OPEN DOORS FORUM | £61k | FY2025 | |
| OPEN DOORS INTERNATIONAL LANGUAGE SCHOOL | £854k | FY2025 | |
| OPEN DOORS TRAINING AND DEVELOPMENT TRUST | £37k | FY2025 | |
| OPEN DOORS WITH BROTHER ANDREW | £18.0m | FY2025 | trustee payments |
| OPEN FOR BUSINESS LIMITED | £1.7m | FY2024 | reserves below policy |
| OPEN HANDS | £137k | FY2025 | |
| OPEN HANDS COVENTRY | £346k | FY2024 | trustee payments |
| OPEN HANDS PROJECT SHEFFIELD | £26k | FY2025 | |
| OPEN HANDS REIGATE | £28k | FY2025 | |
| OPEN HEART MINISTRY | £26k | FY2025 | |
| THE OPEN HEARTS OPEN MINDS FOUNDATION | £36k | FY2025 | |
| OPEN HEAVEN (WEDNESBURY) | £80k | FY2025 | |
| OPEN HOMES NOTTINGHAM | £149k | FY2025 | |
| OPEN HOUSE (CHRISTIAN OUTREACH) TRUST | £29k | FY2024 | |
| OPEN HOUSE SHAFTESBURY | £43k | FY2025 | |
| Open Pathway Retreat Centre | £577k | FY2025 | going concern |
| OPEN ROAD VISIONS | £4.6m | FY2025 | reserves below policy |
| THE OPEN SCHOOL TRUST | £1.6m | FY2025 | reserves below policy |
| THE OPEN TABLE NETWORK | £41k | FY2025 | |
| OPEN TRAIL | £207k | FY2025 | |
| OPEN UNIVERSITY PSYCHOLOGICAL SOCIETY | £56k | FY2024 | trustee payments |
| THE OPEN UNIVERSITY STUDENTS ASSOCIATION | £2.2m | FY2025 | |
| OPEN UP MUSIC | £982k | FY2025 | |
| OPENBRIGHT FOUNDATION | £83k | FY2025 | |
| OPENED HEAVENS CHAPEL | £115k | FY2025 | |
| OPENING YOUR HEART TO BHUTAN | £167k | FY2026 | |
| OPENMIND.ED | £148k | FY2024 | |
| OPENTRUST | £299k | FY2024 | |
| THE OPENWORK FOUNDATION | £1.1m | FY2023 | |
| OPERA ANYWHERE LIMITED | £99k | FY2025 | reserves below policy trustee payments |
| THE OPERA AWARDS FOUNDATION | £80k | FY2024 | |
| OPERA BRAVA LIMITED | £155k | FY2024 | trustee payments |
| OPERA CIRCUS LIMITED | £217k | FY2025 | reserves below policy going concern |
| OPERA DELLA LUNA | £90k | FY2025 | |
| OPERA HOLLAND PARK | £5.7m | FY2025 | reserves below policy |
| OPERA NORTH FUTURE FUND | £121k | FY2025 | |
| OPERA NORTH LIMITED | £18.8m | FY2025 | reserves below policy |
| OPERA ON LOCATION | £88k | FY2025 | trustee payments |
| OPERA PRELUDE | £143k | FY2025 | |
| OPERA RARA | £996k | FY2025 | |
| THE OPERA STORY | £41k | FY2025 | |
| OPERA'R DDRAIG | £51k | FY2025 | |