| INSTITUTE OF THE RELIGIOUS OF THE SACRED HEART OF MARY IMMACULATE VIRGIN | £1.3m | FY2024 | |
| THE INSTITUTION OF ANALYSTS & PROGRAMMERS | £48k | FY2025 | |
| THE INSTITUTION OF CHEMICAL ENGINEERS | £10.6m | FY2025 | |
| THE INSTITUTION OF CIVIL ENGINEERS | £43.0m | FY2024 | |
| THE INSTITUTION OF ENGINEERING AND TECHNOLOGY | £64.1m | FY2024 | |
| THE INSTITUTION OF ENGINEERING AND TECHNOLOGY BENEVOLENT FUND | £1.6m | FY2025 | |
| THE INSTITUTION OF ENVIRONMENTAL SCIENCES LIMITED | £860k | FY2025 | |
| THE INSTITUTION OF GAS ENGINEERS AND MANAGERS | £2.5m | FY2025 | |
| THE INSTITUTION OF LIGHTING PROFESSIONALS | £1.1m | FY2024 | |
| THE INSTITUTION OF MECHANICAL ENGINEERS | £31.9m | FY2024 | |
| THE INSTITUTION OF OCCUPATIONAL SAFETY AND HEALTH | £18.3m | FY2025 | |
| THE INSTITUTION OF POWER ENGINEERS | £86k | FY2025 | |
| Institution of Railway Signal Engineering | £1.4m | FY2024 | |
| INSTITUTION OF ROYAL ENGINEERS | £622k | FY2025 | |
| THE INSTITUTION OF STRUCTURAL ENGINEERS | £9.3m | FY2025 | |
| THE INSTITUTION OF STRUCTURAL ENGINEERS BENEVOLENT FUND | £113k | FY2024 | |
| INSTOW VILLAGE HALL | £87k | FY2025 | |
| INSTRUCTUS | £2.2m | FY2025 | |
| INSTRUMENTS OF TIME AND TRUTH | £241k | FY2025 | |
| INSULATION ENVIRONMENTAL TRAINING TRUST LTD | £119k | FY2024 | |
| THE INSULIN DEPENDENT DIABETES TRUST | £476k | FY2025 | |
| THE INSURANCE CHARITIES | £959k | FY2025 | |
| Insurance Industry Charitable Foundation UK | £373k | FY2023 | |
| INSURANCE MUSEUM | £44k | FY2024 | reserves below policy |
| INSURANCE ORCHESTRAL SOCIETY | £59k | FY2025 | |
| INTAKE PRE-SCHOOL | £318k | FY2025 | trustee payments |
| INTBAU Ltd | £1.6m | FY2025 | |
| INTEGRAL ALLIANCE | £375k | FY2025 | |
| INTEGRATE (PRESTON AND CHORLEY) LIMITED | £11.0m | FY2025 | reserves below policy |
| INTEGRATE UK | £438k | FY2025 | qualified opinion |
| INTEGRATE YOUTH FOR CHRIST | £93k | FY2025 | |
| INTEGRATED NEUROLOGICAL SERVICES | £631k | FY2025 | |
| Integrating | £334k | FY2025 | |
| INTEGRITY ACTION | £3.4m | FY2025 | |
| INTELLIGENCE CORPS ASSOCIATION | £528k | FY2023 | |
| INTENSIVE CARE NATIONAL AUDIT AND RESEARCH CENTRE | £5.2m | FY2024 | |
| THE INTENSIVE CARE SOCIETY | £2.0m | FY2024 | |
| INTER CARE LIMITED | £1.6m | FY2025 | |
| INTER CULTURAL CENTRE | £72k | FY2025 | |
| INTER-BUILD AID | £6k | FY2024 | |
| INTER-CHURCH REVIVAL MISSION | £30k | FY2024 | |
| INTER-CULTURAL YOUTH EXCHANGE (ICYE-UK) LTD | £126k | FY2025 | |
| INTER-VARSITY PRESS | £1.4m | FY2025 | reserves below policy |
| INTERACT CHELMSFORD LIMITED | £236k | FY2025 | reserves below policy going concern |
| INTERACT CHURCH AND COMMUNITY PARTNERSHIP | £138k | FY2025 | |
| INTERACT STROKE SUPPORT | £265k | FY2025 | |
| INTERAKT COMMUNITY | £213k | FY2025 | |
| INTERAKTIVE | £31k | FY2025 | |
| INTERBURNS LIMITED | £893k | FY2025 | |
| INTERCESSORS FOR BRITAIN TRUST | £76k | FY2025 | |
| INTERCLIMATE TRUST | £79k | FY2025 | |
| INTERCOM | £952k | FY2024 | |
| INTERCONTINENTAL CHURCH SOCIETY | £502k | FY2024 | |
| INTERCULTURAL ROOTS FOR PUBLIC HEALTH | £247k | FY2024 | reserves below policy |
| INTERDAM LIMITED | £70k | FY2025 | |
| INTERDOCEO | £856k | FY2024 | |
| INTERESTELAR | £43k | FY2025 | |
| INTERGENERATIONAL FOUNDATION | £98k | FY2024 | |
| INTERIM | £33k | FY2025 | |
| INTERIM SPACES | £123k | FY2025 | |
| THE INTERLINK FOUNDATION | £1.1m | FY2025 | |
| INTERLINK RCT | £1.2m | FY2024 | |
| INTERNAL FIRE MUSEUM OF POWER | £58k | FY2025 | trustee payments |
| INTERNATIONAL AFRICAN INSTITUTE | £182k | FY2025 | |
| INTERNATIONAL AGENCY FOR THE PREVENTION OF BLINDNESS | £4.0m | FY2024 | reserves below policy |
| INTERNATIONAL AID FOR THE PROTECTION AND WELFARE OF ANIMALS | £340k | FY2024 | |
| INTERNATIONAL AID TRUST | £1.2m | FY2024 | |
| INTERNATIONAL ALERT | £15.5m | FY2025 | |
| THE INTERNATIONAL ALLIANCE OF ALS / MND ASSOCIATIONS | £700k | FY2024 | |
| INTERNATIONAL ALLIANCE OF PATIENTS' ORGANIZATIONS | £595k | FY2023 | |
| INTERNATIONAL ANIMAL RESCUE | £3.8m | FY2024 | |
| INTERNATIONAL ANJUMAN-E-KHUDDAM-UL-SOFIA AND AMIR-E-MILLAT TRUST FOUNDATION | £83k | FY2025 | |
| THE INTERNATIONAL ANTHONY BURGESS FOUNDATION | £349k | FY2023 | |
| INTERNATIONAL ARAB WOMEN'S COUNCIL CHARITIES FUND | £60k | FY2025 | |
| INTERNATIONAL ARTS STUDIO | £123k | FY2025 | |
| INTERNATIONAL ASSOCIATION FOR APPLIED ECONOMETRICS | £58k | FY2025 | |
| INTERNATIONAL ASSOCIATION FOR FORENSIC PSYCHOTHERAPY | £37k | FY2025 | |
| THE INTERNATIONAL ASSOCIATION FOR HUMAN VALUES | £123k | FY2025 | |
| The International Association for the Study of Arabia | £31k | FY2025 | |
| INTERNATIONAL ASSOCIATION OF ARSON INVESTIGATORS UNITED KINGDOM | £103k | FY2025 | trustee payments |
| INTERNATIONAL ASSOCIATION OF HYDROGEOLOGISTS | £319k | FY2024 | |
| THE INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES LIMITED | £253k | FY2024 | |
| INTERNATIONAL ASSOCIATION OF TEACHERS OF ENGLISH AS A FOREIGN LANGUAGE | £998k | FY2025 | reserves below policy |
| INTERNATIONAL ASSOCIATION OF UNIVERSITY PRESIDENTS | £120k | FY2025 | |
| INTERNATIONAL BACCALAUREATE FUND UK | £924k | FY2024 | |
| INTERNATIONAL BACCALAUREATE ORGANIZATION (UK) LIMITED | £26.7m | FY2025 | going concern trustee payments |
| THE INTERNATIONAL BANKERS CHARITABLE TRUST | £227k | FY2025 | |
| INTERNATIONAL BAR ASSOCIATIONS HUMAN RIGHTS INSTITUTE TRUST | £943k | FY2024 | |
| INTERNATIONAL BEE RESEARCH ASSOCIATION | £740k | FY2024 | |
| INTERNATIONAL BIBLE STUDENTS ASSOCIATION | £40.6m | FY2025 | |
| INTERNATIONAL BIBLE TRAINING COLLEGE | £179k | FY2025 | |
| INTERNATIONAL BRIGADE MEMORIAL TRUST | £33k | FY2025 | |
| INTERNATIONAL BUDDHIST PROGRESS SOCIETY (MANCHESTER) | £437k | FY2024 | |
| INTERNATIONAL BUDDHIST PROGRESS SOCIETY (UK) | £660k | FY2024 | |
| THE INTERNATIONAL BUDDHIST RELIEF ORGANISATION (I B R O) | £374k | FY2024 | trustee payments |
| INTERNATIONAL CANCER IMAGING SOCIETY | £186k | FY2025 | |
| INTERNATIONAL CARDIOMYOPATHY NETWORK | £40k | FY2024 | reserves below policy |
| INTERNATIONAL CARE NETWORK | £985k | FY2024 | |
| INTERNATIONAL CAT CARE | £3.0m | FY2025 | |
| INTERNATIONAL CENTRAL GOSPEL CHURCH TRUST | £56k | FY2025 | |
| THE INTERNATIONAL CENTRE FOR BIRDS OF PREY | £70k | FY2024 | |
| INTERNATIONAL CENTRE FOR LIFE TRUST | £7.2m | FY2025 | trustee payments |
| INTERNATIONAL CENTRE FOR THERAVADA BUDDHISM UK | £29k | FY2025 | |
| INTERNATIONAL CENTRE RESTORATION OF LIFE | £30k | FY2025 | reserves below policy |
| INTERNATIONAL CHILDREN'S PALLIATIVE CARE NETWORK | £738k | FY2024 | |
| INTERNATIONAL CHILDREN'S TRUST | £117k | FY2025 | |
| INTERNATIONAL CHINA CONCERN | £1.7m | FY2023 | |
| INTERNATIONAL CHINA CONCERN (CHILD CARE) LTD | £78k | FY2024 | reserves below policy |
| INTERNATIONAL CHRISTIAN CHAMBER OF COMMERCE | £49k | FY2024 | |
| INTERNATIONAL CHRISTIAN CONSULATE | £73k | FY2025 | |
| INTERNATIONAL CHRISTIAN MARITIME ASSOCIATION | £222k | FY2024 | |
| INTERNATIONAL CHRISTIAN MEDICAL AND DENTAL ASSOCIATION (UK) CIO | £2.1m | FY2024 | |
| INTERNATIONAL CHRISTIAN MISSION UK | £37k | FY2025 | |
| THE INTERNATIONAL CHURCHILL SOCIETY | £261k | FY2025 | |
| THE INTERNATIONAL CML FOUNDATION | £267k | FY2025 | |
| INTERNATIONAL COLLEGE OF ORIENTAL MEDICINE (UK) LIMITED | £352k | FY2025 | |
| THE INTERNATIONAL COLLEGES OF ISLAMIC SCIENCE | £43k | FY2025 | |
| THE INTERNATIONAL COMMUNITY CHURCH FOUNDATION LTD | £236k | FY2023 | |
| THE INTERNATIONAL COMPANION ANIMAL MANAGEMENT COALITION | £148k | FY2025 | |
| INTERNATIONAL CONSERVATION CAUCUS FOUNDATION UK | £85k | FY2025 | |
| THE INTERNATIONAL CONTINENCE SOCIETY | £952k | FY2024 | |
| INTERNATIONAL COUNCIL FOR STANDARDIZATION IN HAEMATOLOGY | £101k | FY2024 | |
| INTERNATIONAL COUNCIL OF MUSEUMS (UNITED KINGDOM) | £498k | FY2025 | |
| INTERNATIONAL COUNCIL ON MONUMENTS AND SITES, UK | £60k | FY2024 | |
| INTERNATIONAL CURATORS FORUM | £283k | FY2025 | |
| THE INTERNATIONAL DELIVERANCE SANCTUARY | £30k | FY2025 | |
| INTERNATIONAL DENDROLOGY SOCIETY | £727k | FY2024 | |
| INTERNATIONAL DISASTER & EMERGENCY AID WITH LONG TERM SUPPORT | £623k | FY2024 | |
| INTERNATIONAL DOCUMENTARY FESTIVAL SHEFFIELD | £1.4m | FY2025 | going concern |
| INTERNATIONAL DZOGCHEN COMMUNITY OF KUNSELLING | £94k | FY2024 | |
| INTERNATIONAL ECO FUND | £138k | FY2025 | |
| INTERNATIONAL EGG FOUNDATION | £356k | FY2023 | |
| THE INTERNATIONAL EQUINE REPRODUCTION TRUST | £129k | FY2024 | |
| INTERNATIONAL EVALUATION ACADEMY | £74k | FY2024 | |
| THE INTERNATIONAL FEDERATION OF AROMATHERAPISTS | £564k | FY2024 | |
| INTERNATIONAL FEDERATION OF GYNECOLOGY AND OBSTETRICS | £3.6m | FY2024 | |
| INTERNATIONAL FEDERATION OF HYDROGRAPHIC SOCIETIES | £39k | FY2025 | |
| INTERNATIONAL FEDERATION OF PROFESSIONAL AROMATHERAPISTS ("IFPA") | £156k | FY2025 | |
| THE INTERNATIONAL FEDERATION OF TRAINING AND DEVELOPMENT ORGANISATIONS LIMITED | £44k | FY2025 | |
| INTERNATIONAL FELLOWSHIP OF EVANGELICAL STUDENTS | £7.6m | FY2024 | |
| INTERNATIONAL FINANCE FACILITY FOR IMMUNISATION COMPANY | £36.8m | FY2024 | |
| INTERNATIONAL FOOD INFORMATION SERVICE (IFIS PUBLISHING) | £2.2m | FY2025 | reserves below policy |
| INTERNATIONAL FOUNDATION FOR AIDS TO NAVIGATION | £5.8m | FY2024 | |
| THE INTERNATIONAL FOUNDATION FOR ARTS AND CULTURE | £104k | FY2024 | |
| INTERNATIONAL FOUNDATION FOR CHILDREN'S EDUCATION | £762k | FY2025 | |
| INTERNATIONAL FRIENDS OF THE INTERNATIONAL LYRIC ART FESTIVAL | £388k | FY2024 | |
| INTERNATIONAL FUND FOR ANIMAL WELFARE (IFAW) | £17.4m | FY2025 | |
| INTERNATIONAL GAUCHER ALLIANCE | £335k | FY2024 | going concern |
| INTERNATIONAL GILBERT AND SULLIVAN ASSOCIATION | £71k | FY2024 | |
| INTERNATIONAL GLACIOLOGICAL SOCIETY | £187k | FY2024 | reserves below policy |
| INTERNATIONAL GLAUCOMA ASSOCIATION LIMITED | £2.5m | FY2025 | |
| THE INTERNATIONAL GOLF CHARITY | £279k | FY2025 | |
| INTERNATIONAL GOSPEL CHURCH | £133k | FY2025 | |
| INTERNATIONAL GOSPEL COMMUNITY | £85k | FY2025 | |
| INTERNATIONAL GOSPEL OUTREACH | £143k | FY2025 | trustee payments |
| INTERNATIONAL GRACE OF GOD CHURCH | £36k | FY2025 | |
| INTERNATIONAL GROUP FOR THE PSYCHOLOGY OF MATHEMATICS EDUCATION | £127k | FY2024 | |
| INTERNATIONAL GUITAR FOUNDATION & FESTIVALS | £231k | FY2024 | reserves below policy |
| INTERNATIONAL HARVEST CHURCH NEWCASTLE | £428k | FY2025 | |
| INTERNATIONAL HEADACHE SOCIETY | £705k | FY2024 | |
| International Health Development Foundation | £158k | FY2025 | |
| INTERNATIONAL HEALTH PARTNERS (UK) LIMITED | £19.4m | FY2024 | |
| International Helping Hands UK Charity Limited | £270k | FY2024 | reserves below policy |
| THE INTERNATIONAL HERMENEUTIC SOCIETY | £45k | FY2024 | |
| INTERNATIONAL HOUSE OF PRAYER LIMITED | £27k | FY2025 | trustee payments |
| INTERNATIONAL HOUSE TRUST LIMITED | £17.6m | FY2024 | |
| INTERNATIONAL HUMANITARIAN RELIEF | £406k | FY2024 | |
| THE INTERNATIONAL INSTITUTE FOR CONSERVATION OF HISTORIC AND ARTISTIC WORKS | £435k | FY2025 | |
| INTERNATIONAL INSTITUTE FOR ENVIRONMENT AND DEVELOPMENT | £32.5m | FY2025 | |
| INTERNATIONAL INSTITUTE FOR RESTORATIVE REPRODUCTIVE MEDICINE | £68k | FY2025 | trustee payments |
| THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES | £31.6m | FY2025 | |
| INTERNATIONAL INSTITUTE OF COMMUNICATIONS | £691k | FY2025 | |
| INTERNATIONAL INSTITUTE OF RISK AND SAFETY MANAGEMENT | £1.2m | FY2025 | |
| INTERNATIONAL ISLAMIC LINK | £441k | FY2025 | |
| INTERNATIONAL JUSTICE MISSION UK | £3.7m | FY2025 | |
| INTERNATIONAL LAW ASSOCIATION | £150k | FY2024 | |
| THE INTERNATIONAL LAW BOOK FACILITY | £44k | FY2024 | |
| INTERNATIONAL LAWYERS PROJECT | £508k | FY2025 | |
| INTERNATIONAL LEAGUE AGAINST EPILEPSY (BRITISH BRANCH) | £280k | FY2024 | |
| THE INTERNATIONAL LEAGUE OF DERMATOLOGICAL SOCIETIES | £5.1m | FY2024 | |
| INTERNATIONAL LEARNING MOVEMENT (ILM) | £6.1m | FY2025 | trustee payments |
| INTERNATIONAL LIBERTY ASSOCIATION | £4.7m | FY2025 | going concern |
| INTERNATIONAL LIFE CENTRE TRUST | £93k | FY2024 | trustee payments |
| INTERNATIONAL LIFE GATE CHAPEL | £59k | FY2024 | |
| INTERNATIONAL LONGEVITY CENTRE-UK | £1.0m | FY2025 | reserves below policy |
| INTERNATIONAL LYMPHOEDEMA FRAMEWORK | £87k | FY2024 | |
| INTERNATIONAL MAHAVIR JAIN MISSION | £34k | FY2025 | |
| INTERNATIONAL MARITIME RESCUE FEDERATION | £388k | FY2024 | |
| INTERNATIONAL MEDICAL CORPS (UK) | £136.4m | FY2025 | |
| The International Medical Education Trust | £770k | FY2025 | |
| INTERNATIONAL MICROELECTRONICS ASSEMBLY AND PACKAGING SOCIETY - UNITED KINGDOM | £83k | FY2025 | |
| International Mission to Jewish People | £1.7m | FY2024 | |
| INTERNATIONAL NATIONAL TRUSTS ORGANISATION | £1.1m | FY2023 | |
| INTERNATIONAL NEEDS UK | £1.1m | FY2024 | reserves below policy |
| INTERNATIONAL NEPAL FELLOWSHIP | £713k | FY2025 | |
| International Network for Advancing Science and Policy | £1.4m | FY2025 | |
| INTERNATIONAL NON-GOVERNMENTAL ORGANISATION TRAINING AND RESEARCH CENTRE | £1.7m | FY2025 | |
| THE INTERNATIONAL ORGAN FESTIVAL SOCIETY LIMITED | £365k | FY2025 | going concern trustee payments |
| INTERNATIONAL ORGANISATION FOR PEACE BUILDING AND SOCIAL JUSTICE UK | £46k | FY2025 | |
| THE INTERNATIONAL ORTHODONTICS FOUNDATION | £43k | FY2025 | |
| INTERNATIONAL P.E.N. | £1.9m | FY2024 | reserves below policy |
| INTERNATIONAL PLANNED PARENTHOOD FEDERATION | £97.7m | FY2024 | |
| INTERNATIONAL POLE AND LINE FOUNDATION | £1.4m | FY2024 | reserves below policy |
| INTERNATIONAL POSITIVE EDUCATION NETWORK | £47k | FY2025 | |
| INTERNATIONAL PRADER-WILLI SYNDROME ORGANISATION | £207k | FY2024 | |
| INTERNATIONAL PRAISE CENTRE | £762k | FY2025 | |
| INTERNATIONAL PRAYER PALACE CHURCH | £46k | FY2025 | |
| INTERNATIONAL PRESBYTERIAN CHURCH (LISS BRANCH) | £69k | FY2025 | |
| INTERNATIONAL PSYCHOANALYTICAL ASSOCIATION | £2.6m | FY2024 | |
| INTERNATIONAL RELIEF FRIENDSHIP FOUNDATION | £83k | FY2025 | |
| INTERNATIONAL RESCUE COMMITTEE, U.K | £104.1m | FY2025 | |
| INTERNATIONAL ROAD ASSESSMENT PROGRAMME | £4.3m | FY2023 | |
| INTERNATIONAL ROTARY FELLOWSHIP OF HEALTHCARE PROFESSIONALS (UK) TRUST FUND | £68k | FY2025 | |
| THE INTERNATIONAL ROUNDTABLE FOR SUSTAINABLE TEA (THIRST) | £44k | FY2025 | |
| INTERNATIONAL SANCTUARY OF GOD | £32k | FY2025 | |
| INTERNATIONAL SCHOOLS OF BUSINESS MANAGEMENT LIMITED | £479k | FY2025 | |
| INTERNATIONAL SEAFARERS' WELFARE AND ASSISTANCE NETWORK | £1.3m | FY2025 | |
| INTERNATIONAL SEISMOLOGICAL CENTRE | £969k | FY2025 | |
| INTERNATIONAL SELF-CARE FOUNDATION LTD | £52k | FY2025 | |
| INTERNATIONAL SERVICE FELLOWSHIP TRUST | £2.6m | FY2024 | |
| THE INTERNATIONAL SOCIETY FOR AFFECTIVE DISORDERS | £27k | FY2025 | |
| THE INTERNATIONAL SOCIETY FOR DEVELOPMENTAL ORIGINS OF HEALTH AND DISEASE / DOHAD | £35k | FY2025 | |
| INTERNATIONAL SOCIETY FOR EQUITATION SCIENCE | £30k | FY2025 | |
| INTERNATIONAL SOCIETY FOR KRISHNA CONSCIOUSNESS BHAKTIVEDANTA MANOR | £6.6m | FY2023 | |
| INTERNATIONAL SOCIETY FOR KRISHNA CONSCIOUSNESS LIMITED | £15.0m | FY2024 | |
| INTERNATIONAL SOCIETY FOR KRISHNA CONSCIOUSNESS LONDON | £3.6m | FY2024 | trustee payments |
| INTERNATIONAL SOCIETY FOR KRISHNA CONSCIOUSNESS SOUTH LONDON LTD | £94k | FY2024 | |
| THE INTERNATIONAL SOCIETY FOR PEDIATRIC AND ADOLESCENT DIABETES | £1.2m | FY2024 | going concern |
| International Society for Respiratory Viruses | £1.9m | FY2025 | |
| INTERNATIONAL SOCIETY FOR SCIENCE AND RELIGION | £80k | FY2024 | trustee payments |
| THE INTERNATIONAL SOCIETY FOR TRENCHLESS TECHNOLOGY | £126k | FY2024 | |
| THE INTERNATIONAL SOCIETY OF ANTIMICROBIAL CHEMOTHERAPY | £335k | FY2023 | |
| INTERNATIONAL SOCIETY OF RADIOGRAPHERS AND RADIOLOGICAL TECHNOLOGISTS | £104k | FY2022 | |
| THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY | £3.9m | FY2024 | trustee payments |
| INTERNATIONAL SOCIOLOGY OF SPORT ASSOCIATION | £42k | FY2024 | |
| INTERNATIONAL SPINAL RESEARCH TRUST | £3.4m | FY2024 | |
| INTERNATIONAL STUDENTS HOUSE | £7.5m | FY2025 | |
| INTERNATIONAL SWAMINARAYAN SATSANG ORGANISATION | £433k | FY2024 | |
| INTERNATIONAL TAOIST SOCIETY | £195k | FY2024 | |
| INTERNATIONAL TEAMS UK TRUST | £665k | FY2025 | |
| INTERNATIONAL TORTOISE ASSOCIATION | £94k | FY2025 | |
| INTERNATIONAL TREE FOUNDATION | £1.4m | FY2024 | |
| INTERNATIONAL VOLUNTARY SERVICE | £135k | FY2024 | |
| INTERNATIONAL WAQF FUND | £360k | FY2023 | |
| INTERNATIONAL WATER ASSOCIATION | £8.9m | FY2024 | |
| INTERNATIONAL WILDLIFE COALITION TRUST | £253k | FY2024 | |
| THE INTERNATIONAL YOUTH FOUNDATION | £2.2m | FY2024 | reserves below policy |
| INTERNATIONAL YOUTH HOSTEL FEDERATION | £742k | FY2024 | |
| INTERNATIONAL ZEN ASSOCIATION (UNITED KINGDOM) | £44k | FY2024 | |
| Internet of Production UK | £386k | FY2024 | |