| Disabled & Proud Limited | Rugby | 2023 |
| Disabled Children AID Ltd | London | 2017 |
| Disabled Divers International Limited | Nottingham | 2010 |
| Disabled Student Support Limited | Durham | 2024 |
| Disabled Students UK CIC | Ipswich | 2021 |
| Disc Day Nurseries Limited | Sutton Coldfield | 2011 |
| Disc Golf for ALL C.I.C. | Mildenhall | 2020 |
| Discely Limited | Sutton Coldfield | 2026 |
| Disco Dressage Ltd | Tunbridge Wells | 2020 |
| Disco Driving School Ltd | Rayleigh | 2024 |
| Disco Line Dancing Ltd | Hilderstone | 2025 |
| Disco Totz Ltd | Tadworth | 2022 |
| Discog Coding Academy Limited | Ruislip | 2004 |
| Disconnect, an Opportunity Ltd | Wigan | 2025 |
| Discount Driving School Limited | Northampton | 2025 |
| Discourse Collective & Media Limited | London | 2025 |
| Discover and BE Ltd | Lewes | 2016 |
| Discover Aviation Ltd. | Hastings | 2024 |
| Discover Britain Limited | London | 1992 |
| Discover Consultancy and Training CIC | Wigan | 2011 |
| Discover EM Limited | Tonbridge | 2019 |
| Discover Glasgow Ltd | Glasgow | 2021 |
| Discover Hope Foundation | Dundee | 2025 |
| Discover Islam Europe Limited | Parsons Green | 2010 |
| Discover Islam Luton Ltd. | Luton | 2011 |
| Discover Learning Limited | Tonbridge | 2019 |
| Discover Outdoors Ltd | Markfield | 2018 |
| Discover Potential Ltd | Banstead | 2017 |
| Discover Sports Ltd | London | 2026 |
| Discover the Beauty of YOU Ltd | London | 2021 |
| Discover the Difference Ltd | Livingston | 2025 |
| Discover the Music Ltd. | Bournemouth | 2018 |
| Discover Tribe Ltd | Dronfield | 2017 |
| Discover Yoga Discover YOU Ltd | Bristol | 2026 |
| Discover Your Best Consulting Limited | Nottingham | 2007 |
| Discover Your Calm Ltd | Hythe | 2022 |
| Discover Your Doorstep Community Interest Company | Exmouth | 2024 |
| Discover.He CIC | Barnstaple | 2025 |
| Discovering Futures Limited | Richmond | 2007 |
| Discovering Minds Ltd | London | 2024 |
| Discovery Bugs Ltd | Plymouth | 2018 |
| Discovery Collective CIC | Brighton | 2024 |
| Discovery DEN Day Nursery Ltd | Worksop | 2026 |
| Discovery DEN Daycare Ltd. | Redcar | 2023 |
| Discovery Education Centre Ltd | Bristol | 2023 |
| Discovery Educational Trust | Brentwood | 2011 |
| Discovery First Limited | Loughton | 2016 |
| Discovery Languages Ltd | Dundee | 2020 |
| Discovery Multi Academy Trust | Southway | 2016 |
| Discovery Nursery and Preschool Ltd | Southampton | 2015 |
| Discovery Nursery Limited | Dover | 2004 |
| Discovery Planet C.I.C. | Ramsgate | 2015 |
| Discovery RE Ltd | Leatherhead | 2013 |
| Discovery Schools Academies Trust Ltd | Leicester | 2012 |
| Discovery Sports Coaching Limited | Boston | 2023 |
| Discovery Stem Education | Sheffield | 2015 |
| Discovery Strings C.I.C. | London | 2025 |
| Discovery Summer Limited | | 1990 |
| Discovery Training Academy Ltd | Crawley | 2019 |
| Discovery Tree Nursery Limited | London | 2026 |
| Discovery Vine Limited | Preston | 2002 |
| Discovery World Day Nursery Ltd | London | 2026 |
| Discsimple Limited | Llanelli | 2016 |
| Discussing Mental Health Ltd | London | 2025 |
| Diskingdom Limited | Teignmouth | 2021 |
| Disley Theatrical Productions Ltd | Chester | 2022 |
| Disobedient Learners Ltd | Northampton | 2025 |
| Displaced CIC | London | 2023 |
| Dispute Resolution Centre Wales Canolfan Datrys Anghydfodau Cymru Ltd | Cardiff | 2023 |
| Disrupt Foundation | London | 2021 |
| Disrupt World Ltd. | Uxbridge | 2021 |
| Disruption Limited | Belfast | 2024 |
| Dissonance Quartets Ltd | Battle | 2026 |
| Distance Cert Ltd | York | 2021 |
| Distance Learning Courses Limited | Houghton Le Spring | 2016 |
| Distance Learning Limited | West Midlands | 1989 |
| Distancelearningcentre.Com Ltd | Todmorden | 2003 |
| Distilled London (UK) Ltd | London | 2014 |
| Distillers Kitchen Ltd | Leicester | 2014 |
| Distillers Nose Limited | Edinburgh | 2019 |
| Distinct Education Services Limited | Buckhurst Hill | 2004 |
| Distinct Family Services Limited | London | 2016 |
| Distinction Coaching Ltd | Watford | 2021 |
| Distinctive Objects Ltd | Enfield | 2022 |
| Distinguished Performance CIC | Mitcham | 2025 |
| Distraction Community and Youth Project CIC | Banbury | 2025 |
| Distribution Skills Limited | Newcastle | 2010 |
| District One Training Ltd | Watford | 2015 |
| District Tuition Limited | Cleator Moor | 2022 |
| Distro 314 Ltd | London | 2024 |
| Ditch the Label Ltd | Brighton | 2013 |
| Ditch's Driving School Limited | Letchworth Garden City | 2026 |
| Ditcham Park School Charity Association(The) | Hampshire | 1982 |
| Ditchley Foundation(The) | Chipping Norton | 1958 |
| Ditero Group Ltd | London | 2025 |
| Dittons Paddle Boarding CIC | West Molesey | 2023 |
| DIU UK Organisation Ltd | Leicester | 2024 |
| Diva Music Academy Ltd | London | 2024 |
| Divad Training Limited | Kirk Sandall | 2015 |
| Divaje Business Limited | London | 2022 |