| ISLE OF ELY ROWING CLUB | £79k | FY2025 | |
| ISLE OF ELY SOCIETY FOR THE BLIND | £34k | FY2025 | going concern |
| ISLE OF SHEPPEY DISTRICT SCOUTS | £28k | FY2025 | |
| ISLE OF WIGHT BUS & COACH MUSEUM LIMITED | £165k | FY2024 | |
| ISLE OF WIGHT CHRISTIAN FELLOWSHIP | £208k | FY2025 | |
| ISLE OF WIGHT CITIZENS ADVICE BUREAU | £712k | FY2025 | reserves below policy |
| ISLE OF WIGHT DIABETIC FUND | £30k | FY2025 | |
| ISLE OF WIGHT DONKEY SANCTUARY CIO | £2.1m | FY2024 | |
| ISLE OF WIGHT FOODBANK | £284k | FY2025 | |
| ISLE OF WIGHT FOUNDATION | £104k | FY2024 | reserves below policy |
| ISLE OF WIGHT LEARNING ZONE | £33k | FY2025 | |
| ISLE OF WIGHT LITERARY FESTIVAL | £134k | FY2024 | |
| ISLE OF WIGHT MENCAP | £604k | FY2025 | |
| ISLE OF WIGHT NATURAL HISTORY AND ARCHAEOLOGICAL SOCIETY | £36k | FY2025 | |
| ISLE OF WIGHT NHS TRUST CHARITABLE FUNDS | £92k | FY2025 | |
| ISLE OF WIGHT PRIDE | £27k | FY2025 | |
| THE ISLE OF WIGHT PROSTATE CANCER SUPPORT GROUP | £93k | FY2026 | |
| THE ISLE OF WIGHT RAILWAY COMPANY LIMITED | £3.2m | FY2025 | |
| THE ISLE OF WIGHT RED SQUIRREL TRUST | £171k | FY2025 | |
| ISLE OF WIGHT SCOUT COUNCIL | £230k | FY2024 | |
| ISLE OF WIGHT SEARCH AND RESCUE | £38k | FY2024 | |
| ISLE OF WIGHT SOCIETY FOR THE BLIND | £321k | FY2025 | |
| ISLE OF WIGHT STREET PASTORS | £31k | FY2024 | |
| ISLE OF WIGHT SYMPHONY ORCHESTRA SOCIETY | £57k | FY2025 | |
| ISLE OF WIGHT YOUTH FOR CHRIST | £127k | FY2024 | |
| ISLE OF WIGHT YOUTH TRUST | £1.3m | FY2025 | |
| THE ISLEDON COMMUNITY NURSERY TRUST | £426k | FY2025 | |
| ISLEHAM UNDER FIVES ASSOCIATION | £157k | FY2025 | |
| Isles of Scilly Charitable Trust comprising the Edward McDonald Fund and the Pilots Widows Fund | £29k | FY2025 | |
| THE ISLES OF SCILLY MEDICAL CENTRE TRUST | £39k | FY2025 | |
| THE ISLES OF SCILLY MEDICAL LAUNCH TRUST | £80k | FY2025 | |
| THE ISLES OF SCILLY MUSEUM ASSOCIATION | £232k | FY2024 | reserves below policy |
| ISLES OF SCILLY WILDLIFE TRUST LIMITED | £757k | FY2025 | |
| ISLEWORTH & HOUNSLOW CHARITY LIMITED | £1.2m | FY2024 | |
| ISLEWORTH BLUE SCHOOL EDUCATIONAL FOUNDATION | £174k | FY2025 | |
| ISLEWORTH DEEN CENTRE | £309k | FY2025 | |
| ISLEWORTH EXPLORERS CLUB | £257k | FY2025 | |
| ISLINGTON & CAMDEN MISSION METHODIST CIRCUIT | £98k | FY2025 | |
| ISLINGTON BAMER ADVICE ALLIANCE (IBAA) | £141k | FY2025 | |
| ISLINGTON BANGLADESH ASSOCIATION | £204k | FY2025 | |
| ISLINGTON BOAT CLUB | £190k | FY2025 | |
| ISLINGTON CENTRE FOR REFUGEES AND MIGRANTS | £529k | FY2025 | |
| ISLINGTON CHINESE ASSOCIATION | £305k | FY2025 | going concern |
| ISLINGTON CHORAL SOCIETY | £88k | FY2025 | |
| ISLINGTON CLIMATE CENTRE CIO | £31k | FY2026 | |
| ISLINGTON COMMUNITY SPORTS ACADEMY | £607k | FY2025 | trustee payments |
| ISLINGTON FAITHS FORUM | £199k | FY2026 | |
| ISLINGTON FOODBANK | £159k | FY2024 | |
| Islington Gospel Trust Limited | £240k | FY2025 | |
| ISLINGTON LAW CENTRE | £2.0m | FY2025 | |
| ISLINGTON MANAGUA FRIENDSHIP ASSOCIATION | £25k | FY2025 | |
| ISLINGTON MIND | £1.9m | FY2025 | |
| ISLINGTON MUSIC WORKSHOP LIMITED | £288k | FY2025 | |
| ISLINGTON PEOPLE'S RIGHTS | £516k | FY2025 | |
| ISLINGTON PLAY ASSOCIATION | £1.4m | FY2025 | going concern |
| ISLINGTON REFUGEE FORUM | £48k | FY2025 | |
| ISLINGTON SOMALI COMMUNITY | £147k | FY2025 | |
| ISLINGTON SOMALI WELFARE LTD | £42k | FY2025 | reserves below policy |
| ISLINGTON U3A | £28k | FY2025 | |
| ISLINGTON UNITED REFORMED CHURCH | £103k | FY2024 | going concern |
| ISLIP VILLAGE HALL LIMITED | £46k | FY2025 | |
| Islwyn Ministry Area | £596k | FY2025 | |
| ISMAILI TRUST (UK) | £63k | FY2024 | |
| THE ISOKON GALLERY TRUST | £49k | FY2025 | |
| ISRAAC SOMALI COMMUNITY ASSOCIATION | £374k | FY2025 | |
| THE ISRAEL CHILDREN'S CENTERS | £50k | FY2024 | |
| ISRAEL GUIDE DOG CENTRE UK | £695k | FY2025 | |
| THE ISRAEL LAZARUS CHARITABLE TRUST | £34k | FY2026 | |
| ISRAEL PHILHARMONIC ORCHESTRA FOUNDATION UK | £428k | FY2025 | |
| ISRAELI CHARITY FOUNDATION | £124k | FY2024 | |
| THE ISRAELI DANCE INSTITUTE | £163k | FY2025 | |
| ISRAELI SCOUTS WESTERN EUROPE | £707k | FY2024 | |
| ISSA FOUNDATION | £9.9m | FY2024 | |
| ISSABELLES APPEAL | £29k | FY2025 | |
| ISSACHAR MINISTRIES UK | £120k | FY2025 | |
| IST GROOMBRIDGE SCOUT GROUP | £31k | FY2025 | |
| IST HEXHAM SCOUT GROUP | £82k | FY2025 | |
| IST HURSTPIERPOINT SCOUT GROUP | £59k | FY2025 | |
| ISTA Global Arts Learning Ltd | £1.3m | FY2025 | trustee payments |
| IT TAKES A CITY (CAMBRIDGE) | £479k | FY2025 | reserves below policy |
| It's a Penalty | £1.1m | FY2025 | |
| IT'S IN THE BAG CANCER SUPPORT LTD | £256k | FY2024 | trustee payments |
| It's My Life Trust | £45k | FY2025 | |
| IT'S ON THE BALL | £57k | FY2025 | |
| IT'S TIME | £78k | FY2024 | |
| IT'S YOUR LIFE | £321k | FY2025 | |
| The Italia Conti Trust | £46k | FY2025 | |
| THE ITALIAN COMMUNITY ASSOCIATION | £193k | FY2025 | |
| ITALIAN GREYHOUND RESCUE | £29k | FY2025 | |
| ITALIAN MEDICAL CHARITY | £77k | FY2025 | |
| ITAMBIRA ISLAND TRUST | £47k | FY2025 | |
| ITC TAMIL CENTRE | £57k | FY2025 | |
| ITCHEN ABBAS AND AVINGTON VILLAGE HALL | £64k | FY2025 | |
| ITCHEN DISTRICT SCOUTS | £310k | FY2026 | |
| ITCHENOR MEMORIAL HALL | £46k | FY2025 | |
| ITEC NORTH EAST LIMITED | £1.4m | FY2024 | |
| ITP SUPPORT ASSOCIATION | £175k | FY2025 | |
| ITS NEVER YOU | £176k | FY2025 | |
| The ITSA Digital Trust | £346k | FY2025 | |
| ITZCHOK MEYER CYMERMAN TRUST LIMITED | £3.2m | FY2025 | |
| THE IUVENTAS FOUNDATION | £90k | FY2025 | |
| IV PUBLISHING | £28k | FY2025 | |
| THE IVATT AND PAMELA SMITH CHARITABLE TRUST | £44k | FY2025 | trustee payments |
| IVATT DIESEL RECREATION SOCIETY | £114k | FY2024 | |
| IVCC | £19.1m | FY2025 | |
| IVEL GOSPEL HALL TRUST | £387k | FY2025 | |
| IVER COMMUNITY ASSOCIATION | £50k | FY2025 | |
| IVER EDUCATIONAL TRUST | £26k | FY2024 | |
| IVER VILLAGE PRE-SCHOOL | £113k | FY2025 | |
| IVINGHOE OLD SCHOOL COMMUNITY HUB | £30k | FY2025 | |
| Ivison Trust | £891k | FY2025 | |
| THE IVO TRUST | £62k | FY2024 | |
| THE IVOR READ CHARITY | £42k | FY2025 | |
| The Ivors Academy Trust | £127k | FY2024 | |
| THE IVY CHILD CHARITABLE TRUST | £25k | FY2025 | |
| IVY DENE RABBIT RESCUE | £120k | FY2025 | |
| IVY MANCHESTER LIMITED | £953k | FY2025 | trustee payments |
| IVY MARY MACFIE DECEASED CHARITABLE FUND | £75k | FY2025 | |
| IVY PENTECOSTAL CHURCH | £68k | FY2024 | |
| IVY STREET FAMILY CENTRE TRUST | £106k | FY2024 | trustee payments |
| IVYBRIDGE & DISTRICT COMMUNITY TRANSPORT ASSOCIATION | £118k | FY2025 | |
| IVYBRIDGE & DISTRICT FOODBANK | £55k | FY2025 | |
| IVYBRIDGE BAPTIST CHURCH | £52k | FY2025 | |
| IVYBRIDGE METHODIST CHURCH | £118k | FY2025 | |
| IVYBRIDGE U3A | £30k | FY2025 | |
| IVYBRIDGE YOUNG FARMERS CLUB | £26k | FY2025 | |
| IVYBRIDGE YOUTH FOR CHRIST | £60k | FY2025 | |
| IVYBRIDGELINK | £216k | FY2025 | |
| IVYDALE LEAGUE OF FRIENDS | £43k | FY2025 | |
| IWS CHARITY | £44k | FY2024 | |
| IYIMV | £502k | FY2024 | |
| IZQILAR | £240k | FY2025 | |