| CARMELITE PRIORY - OXFORD (The Friends of Whitefriars Oxford Trust) | Oxford | A rating |
| Casa de Oracion UK | London | A rating |
| Caterham School Ltd | Caterham | A rating |
| Catholic Diocese of Derry | Londonderry | A rating |
| Catholic Diocese of Portsmouth | Portsmouth | A rating |
| Catholic Syro-Malabar Eparchy of Great Britain | Preston | A rating |
| CCC CHURCH OF CHRIST SIDCUP KENT PARISH | ORPINGTON | A rating |
| CCC Jehovah Emmanuel Parish | Manchester | A rating |
| Celebration Church International | London | A rating |
| Celestial Church Beulah Wonderful Parish | Woolich London | A rating |
| CELESTIAL CHURCH OF CHRIST - HOUSE OF PRAISE PARISH | Manchester | A rating |
| Celestial Church of Christ Aduragbemi (Power of Prayer) Parish | LONDON | A rating |
| CELESTIAL CHURCH OF CHRIST AMAZING GRACE PARISH | New Addington | A rating |
| Celestial Church of Christ Citadel of Celestians Cathedral | Manchester | A rating |
| CELESTIAL CHURCH OF CHRIST CLAPHAM PARISH TABERNACLE OF LIBERATION | LONDON | A rating |
| Celestial Church of Christ Holy Throne of God | OLDHAM | A rating |
| CELESTIAL CHURCH OF CHRIST LIVING WORD MINISTRIES | LONDON | A rating |
| Celestial Church Of Christ Victory Land Parish | Huddersfield | A rating |
| Celestial Church of Christ, Christ Transformation Parish | Hounslow | A rating |
| Celestial Church of Christ, Greater London Parish | Southall | A rating |
| Celestial Church Of Christ. Salvation Ark Parish | MANCHESTER | A rating |
| CELESTIAL CHURCH OF CHRISTILERI OLUWA PARISH MANCHESTER | MANCHESTER | A rating |
| Center For Inner Sciences | Milton Keynes | A rating |
| Central Gurdwara Singh Sabha | Glasgow | A rating |
| Central Harvest Church | London | A rating |
| Central Jamia Mosque Madni & Education Centre | Halifax | A rating |
| CENTRAL MOSQUE OF BRENT | LONDON | A rating |
| Central Mosque Rochdale | Rochdale | A rating |
| Centre 61 Ministries | Newcastle | A rating |
| Centre for International Christian Ministries | London | A rating |
| Centrepoint Church | Bathgate | A rating |
| Chabad Lubavitch (Leeds) Limited | Leeds | A rating |
| Chabad Lubavitch UK | London | A rating |
| Chapel of His Glory | Glasgow | A rating |
| Chapel.Wales | Rhyl | A rating |
| Charismatic Evangelistic Ministry UK | HARLOW | A rating |
| Charity For Roman Catholic Purposes Administered In Connection With The English Province Of The Community Of The Religious Of Jesus And Mary | Felixstowe | A rating |
| Charity of the Bernardine Sisters | Stroud | A rating |
| CHARLTON MASJID TRUST | London | A rating |
| Chashtiah Educational Trust | Rochdale | A rating |
| Chelmsford Hindu Society | CHELMSFORD | A rating |
| CHELMSFORD PRESBYTERIAN CHURCH | CHELMSFORD | A rating |
| Chelmsford Srinivasa Perumal Temple | Chelmsford | A rating |
| Chemin Neuf Community | Storrington | A rating |
| Cherubim and Seraphim Holy Temple Church of Christ | London | A rating |
| Cherubim and Seraphim Movement Church, Jehovah Jireh District, Ayo Ni o UK | Cheetham Hill | A rating |
| Child Evangelism Fellowship of Britain | Poole | A rating |
| Chinese Alliance Churches Union (UK) | Manchester | A rating |
| Chinese Church in London | London | A rating |
| Chinese Gospel Church Oxford | Oxford | A rating |
| Chinese Overseas Christian Mission | Milton Keynes | A rating |
| Chinmaya Mission UK | London | A rating |
| CHRIST APOSTOLIC CHURCH | LONDON | A rating |
| Christ Apostolic Church - House of Prayer, Glasgow | Glasgow | A rating |
| CHRIST APOSTOLIC CHURCH (GOSPEL GENERATION0 | LONDON | A rating |
| CHRIST APOSTOLIC CHURCH (HOUSE OF BREAKTHROUGH) | HEYWOOD | A rating |
| CHRIST APOSTOLIC CHURCH (VINEYARD OF COMFORT) EAST LONDON ASSEMBLY | BOW, LONDON | A rating |
| CHRIST APOSTOLIC CHURCH BALM OF GILEAD CHRISTIAN MINISTRIES INTERNATIONAL | London | A rating |
| CHRIST APOSTOLIC CHURCH DOMINION OUTREACH | MANCHESTER | A rating |
| CHRIST APOSTOLIC CHURCH FAITH CHAPEL | STOKE-ON-TRENT | A rating |
| CHRIST APOSTOLIC CHURCH GLORIOUS ASSEMBLY | WEST BROMWICH | A rating |
| Christ Apostolic Church God is Love. | Purfleet | A rating |
| CHRIST APOSTOLIC CHURCH INTERNATIONAL MIRACLE CENTRE | LONDON | A rating |
| CHRIST APOSTOLIC CHURCH KINGSREALM | MIDDLESBROUGH | A rating |
| CHRIST APOSTOLIC CHURCH MOUNT OF REHOBOTH | WILLENHALL | A rating |
| CHRIST APOSTOLIC CHURCH MOUNT ZION INTERNATIONAL | PECKHAM, LONDON | A rating |
| CHRIST APOSTOLIC CHURCH NEW TESTAMENT ASSEMBLY | LUTON | A rating |
| Christ Apostolic Church Pentecostal Assembly | Wolverhampton | A rating |
| CHRIST APOSTOLIC CHURCH PILGRIMS TABERNACLE | LONDON | A rating |
| CHRIST APOSTOLIC CHURCH RIVER OF LIFE | CONENTRY | A rating |
| Christ Apostolic Church Stockwell | London | A rating |
| CHRIST APOSTOLIC CHURCH THRONE OF GRACE AND MERCY | LONDON | A rating |
| CHRIST APOSTOLIC CHURCH WONDERS ASSEMBLY | DARTFORD | A rating |
| Christ Apostolic Church Word of His Grace | Bedfordshire | A rating |
| CHRIST APOSTOLIC CHURCH-HOUSE OF GLORY MISSION INTERNATIONAL | CROYDON | A rating |
| CHRIST APOSTOLIC CHURCH, GRACE AND TRUTH MINISTRY, BIRMINGHAM | WALSALL | A rating |
| CHRIST APOSTOLIC MISSION CHURCH (JOY OF SALVATION) | London | A rating |
| Christ Central | Redhill | A rating |
| Christ Church Barnet | Barnet | A rating |
| Christ Church Birmingham | Birmingham | A rating |
| Christ Church Blackburn | Lancashire | A rating |
| Christ Church Chineham | Basingstoke | A rating |
| Christ Church Derby | Derby | A rating |
| Christ Church Fulwood | Sheffield | A rating |
| CHRIST CHURCH INTERNATIONAL | KENT | A rating |
| Christ Church Liverpool | Liverpool | A rating |
| Christ Church London | London | A rating |
| Christ Church Pennington | Leigh | A rating |
| Christ Church Presbyterian | Barry | A rating |
| Christ Church Southampton CIO | Southampton | A rating |
| Christ Church Spitalfields | London | A rating |
| CHRIST EMBASSY | Barking | A rating |
| Christ Exalted Church | Wellingborough | A rating |
| CHRIST FELLOWSHIP CENTRE LTD | Essex | A rating |
| CHRIST GLOBAL GOSPEL MINISTRY UK | MANCHESTER | A rating |
| Christ Gospel Assembly | Tilbury | A rating |
| Christ Healing Evangelical Church | Glasgow | A rating |
| CHRIST LIGHT ASSEMBLIES UK (aka CLASS UK) | KENT | A rating |
| CHRIST MIRACLE CHURCH MISSION | LONDON | A rating |
| CHRIST MIRACLE CHURCH MISSION BOURNEMOUTH ( VICTORY ASSEMBLY) | Bournemouth | A rating |
| CHRIST REFORMED INTERNATIONAL MINISTRIES | ERITH | A rating |
| CHRIST SALVATION MINISTRIES (OVERCOMERS) LIMITED | MANCHESTER | A rating |
| Christ The Vine Church | Manchester | A rating |
| Christ United Pentecostal Ministries Liberty House | Northampton | A rating |
| CHRIST UNIVERSAL IMPACT OUTREACH MINISTRIES | ELTHAM | A rating |
| CHRIST`S CHOSEN CHURCH OF GOD | MANCHESTER | A rating |
| Christar | Maidenhead | A rating |
| ChristChurch | London | A rating |
| ChristChurch Banstead | Banstead | A rating |
| Christian Associates Network | Glasgow | A rating |
| CHRISTIAN FAITH CENTRE INTERNATIONAL MINISTRIES | BIRMINGHAM | A rating |
| Christian Life Church | Hereford | A rating |
| Christian Orthodox Convent of the Annunciation | London | A rating |
| CHRISTIAN OUTREACH CENTRE-BISHOP'S STORTFORD | Bishop's Stortford | A rating |
| Christian Spiritual Warfare Ministry | London | A rating |
| Church Army | Sheffield | A rating |
| Church Communities UK | Robertsbridge | A rating |
| Church of England Central Services | London | A rating |
| CHURCH OF GOD MISSION INTERNATIONAL (DAGENHAM) | BRENTWOOD | A rating |
| Church Of God Scotland | Dundee | A rating |
| CHURCH OF GOD U.K. CROSS CULTURAL MINISTRIES LTD | SOUTHAL | A rating |
| Church of God Worldwide Mission International and Community Mission Project | READING | A rating |
| Church of God, a Worldwide Association - British Isles | High Wycombe | A rating |
| Church of Ireland and Methodist Chaplaincy Belfast | Belfast | A rating |
| Church of Ireland Dioceses of Down and Dromore and Connor Joint Committee | Belfast | A rating |
| Church of Scientology Religious Education College Inc | East Grinstead | A rating |
| Church of the Nazarene British Isles North District | Perth | A rating |
| Church of the Nazarene British Isles South District BISD | Ashton-under-Lyne | A rating |
| Churchcentral Trust | Birmingham | A rating |
| Cistercian Monastery Nunraw | Haddington | A rating |
| City Church | Belfast | A rating |
| City Church Birmingham | Birmingham | A rating |
| City Church Manchester | Manchester | A rating |
| City Church Preston | Preston | A rating |
| City Gates Church | London | A rating |
| City Life Church | Portsmouth | A rating |
| City Of Faith Ministry | Barking | A rating |
| City Of God Christian Centre | Newcastle upon Tyne | A rating |
| City of Gods | Sheffield | A rating |
| City on a Hill | Edinburgh | A rating |
| City Valley Church | Shipley | A rating |
| CityCoast Church (CityCoast Trust) | Brighton | A rating |
| Clare College | Cambridge | A rating |
| Claretian Missionaries Trust | St Neots | A rating |
| CLC International (UK) | Sandycroft | A rating |
| Clifton Diocese | Bristol | A rating |
| Co-Mission Initiative Trust | London | A rating |
| Coastline Vineyard Church | Bournemouth | A rating |
| Colchester Islamic Cultural Association | Colchester | A rating |
| coleraine church of christ | coleraine | A rating |
| Comboni Missionary Sisters CIO | Birmingham | A rating |
| Commission Apostolic Trust Ltd | Bournemouth | A rating |
| CommissionBEIS MENACHEM CHABAD LUBAVITCH | Salford | A rating |
| Community Baptist Church North Manchester | Bury | A rating |
| Community Church of God | Tottenham | A rating |
| Community Church Warndon | Worcester | A rating |
| COMMUNITY OF CHRIST-BRITISH ISLES MISSION CENTRE | CHESTERFIELD | A rating |
| Community of Saint John | London | A rating |
| Community of Saint John the Baptist | Maldon | A rating |
| Community of the Resurrection | Mirfield | A rating |
| Community of the Sisters of the Church | Gerrards Cross | A rating |
| Congregation of Jesus Charitable Trust | York | A rating |
| Congregation of Our Lady of the Missions CIO | Harrow | A rating |
| Congregation of Our Lady, Canonesses of St Augustine CIO | London | A rating |
| Congregation of the Blessed Sacrament | Liverpool | A rating |
| Congregation Of The Daughters of the Holy Spirit CIO | Northampton | A rating |
| Congregation of the Dominican Sisters of Saint Catherin of Siena Newcastle, Natal | Bushey | A rating |
| Congregation of the Holy Spirit, British Province | Chester | A rating |
| Congregation of the Mission (The Vincentian Fathers) | London | A rating |
| Congregation of the Most Holy Redeemer | LONDON | A rating |
| Congregation of the Most Holy Redeemer - Redemptorists | Belfast | A rating |
| Congregation of the Passion of Jesus Christ | Glasgow | A rating |
| Congregation of the Sacred Heart of Jesus of Betharram | Solihull | A rating |
| Congregation of the Sacred Hearts of Jesus and Mary | London | A rating |
| CONGREGATION OF THE SISTERS OF THE IMMACULATE HEART OF MARY, MOTHER OF CHRIST | Walsall | A rating |
| Consolata Fathers | London | A rating |
| COR-LUMEN CHRISTI TRUST | CHERTSEY | A rating |
| CORBY MUSLIM ASSOCIATION | Corby | A rating |
| CORNERSTONE CHRISTIAN LEADERSHIP CENTRE | BARKING | A rating |
| Cornerstone Collective of Churches | Liverpool | A rating |
| Cornerstone Community Church (Wales) | Swansea | A rating |
| Cornerstone St Andrews | St Andrews | A rating |
| Corrymeela Community | Ballycastle | A rating |
| Covenant of Mercy Ltd | Canary Wharf, London | A rating |
| Covenant Players (UK) Trust | Cwmbran | A rating |
| COVENANT RESTORATION CHAPEL INTERNATIONAL | READING | A rating |
| Coventry Diocesan Board of Finance | Coventry | A rating |
| Coventry Shri Sidhi Vinayagar Devasthanam | Coventry | A rating |
| COZA Global (UK) | London | A rating |
| Creation Destination UK | Kilmarnock | A rating |
| Creation Fest Limited | Wadebridge | A rating |
| Cross Mission | Luton | A rating |
| Crossover Chapel International | London | A rating |
| Crossroads Church Edinburgh | Edinburgh | A rating |
| Crown Christian Heritage Trust | Droitwich | A rating |
| Croydon Islamic Academy | London | A rating |
| Cupar Baptist Church SCIO | Cupar | A rating |
| DA' WATUL ISLAM UK & EIRE LIMITED | London | A rating |
| Danbury Mission Church | Danbury | A rating |
| Dar Al Ilm Learning Centre | LONDON | A rating |