- Daisy’s Dream
- DCYZ – Deliverance Centre Youth Zone
- DDE+ (Drink Driver Education Plus)
- Deaf Positives
- DEBRA
- Decibels
- Dee Park Residents’ Association
- Depression Xpression
- Diabetes UK
- Dialogue Society
- Diana Brimblecombe Animal Rescue Centre
- Didcot Railway Centre (Education Team)
- Dimensions
- Dingley’s Promise
- Dinton Pastures Country Park
- Directory of Social Change
- Dogs for Good
- Doodle Dots
- Door of Hope
- DrugFAM
- Dyslexia Research Trust
