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- The Dell FC
- The Dell Primary School, Chepstow
- The Deltic Preservation Society
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- The Dementia Music and Social Club - Rainham
- The Den Honiton CIC
- The Den Juniors - Activity Club
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- The Denise Robinson School of Dance
- The Depot - Supporting Refugees in Dumfries and Galloway
- The Derby High School, Bury
- The Derby Pirates South Shields
- The Derbyshire Singers
- The Dereck Hoile Foundation
- The Derek Earl Memorial Fund
- The Derwent Arms
- The Derwent Project
- The Desert Wives 100K Sahara Trek For Help for Heroes
- The Desert Wives Trek 2014 for Care for Casualties & Help for Heroes - Hayley Ferguson
- The Desert Wives Trek For Help for Heroes 2014 - Caroline Ward
- The Design Cabin Community C.I.C
- The Design Unit
- The Destiny Project SCIO
- The Devils Trust
- The Devon & Cornwall Food Association
- The Devon Clinic
- The Diabetes Centre UK
- The Diamond Centre for Disabled Riders
- The Diamond Kite Foundation
- The Diamond Primary School, Cullybackey
- The Dicky Buckle Fund CIO
- The Digglers Charitable Trust
- The Digital Growth Hub CIC
- The Dignity Project
- The Dingle Primary School - Haslington
- The Dino-mite Dougal Fund raising for The Brain Tumour Charity
- The Dionysus Ensemble
- The Disabilities Trust
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- The Disability Sports Network CIC
- The Disability Union
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- The Disaway Trust
- The Disley School Association Stockport
- The District CE Primary (Friends of District) PTFA Merseyside
- The Dixie World Challenge 2026 Fundraiser Nicola Haynes
- The Dobermann Trust
- The Dockland Settlements
- The Dog House Rescue
- The Dog Rose Trust
- The Dog Team UK
- The Dog You Need
- The Dogs Squad CIC
- The Dohnavur Fellowship Corporation
- The Dojo - Hertfordshire
- The Dojo Martial Arts Acadamy
- The Dojo Martial Arts Academy
- The Dolphins Recreation Centre - Tetbury
- The Don McMath Foundation
- The Donington Cowley Endowed Primary PTFA
- The Donkey Field Pre-School
- The Donkey Haven Charity
- The Donkey Sanctuary
- The Donkeys of Tranquility
- The Donnie McGowan Access Fund
- The Dont Stop Believing Entertainment Group (DSB)
- The Door
- The Dora Foundation
- The Dorcan Academy PTFA
- The Dorothy Parkes Centre
- The Dorset Cancer Care Foundation
- The Dorset Children's Foundation
- The Dorset Expeditionary Society Moonlands 2016 - Liam Millen
- The Dorset Foundation College Student Support Charity
- The Douglas Bader Foundation
- The Douglas Valley Church
- The Dove Centre - Edinburgh
- The Dove Service
- The Dovedale Association Long Eaton
- The Downham Games
- The Downland Chorale
- The Downley School PTA
- The Downs Malawi Fundraiser
- The Downs School Trust - Compton
- The Downton Moot
- The Dr. JOSEPH FOOTITT Breath of Life Fund
- The Draco Project
- The Dragon Barmouth Ltd
- The Dragon Boat Race 2019 - The Royal British legion
- The Drama Shop
- The Dreadnought Centre
- The Dream Centre
- The Dream Factory
- The Drew Barker-Wright Charity - Brecon
- The Drive Community Primary School
- The Driving Force
- The Drop In Bereavement Centre
- The Drop Inn
- The Drum RDA
- The Duane Spencer Trust
- The Duchenne Children's Trust
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- The Duchy School PTFA
- The Duchy School, Bradninch
- The Duckpond Players
- The Duke Football Club - Bridgwater
- The Duke of Edinburgh's Award
- The Duke of Edinburgh's Award - Northern Ireland
- The Dukes
- The Dukies Foundation
- The Dunblane Centre
- The Duncan and Toplis Foundation
- The Dunfield Charity
- The Dunmow Theatre Company
- The Dunsfold Collection
- The Durham Divas
- The Dusty Shed
- The Dynamic Gymnastics Foundation
- The Dynamix Foundation Ltd
- The Dyscalculia Network
- The Dyslexia Association
- The Dziko Project
- The EC Roberts Centre
- The EHE Rare Cancer Charity
- The ELY Memorial Fund
- The EPB Preservation Group
- The EPIC Charity - Bristol
- The EPIC Family Community Interest Company
- The Ealing Trailfinders Foundation
- The Ear Trust
- The Early Birth Association
- The Early Learning Camp
- The Easingwold Singers
- The East Cheshire Musical Theatre company
- The East Malling Centre
- The East Sussex Association of Blind and Partially Sighted People