| David Higgins (London) Limited | London | 2014 |
| David Howard Training Limited | London | 2008 |
| David J Tinsley Training Ltd | Wirral | 2011 |
| David J. Keogh Ltd | Chesham | 2023 |
| David James Parkinson Ltd | Ballymena | 2023 |
| David Lockhart Limited | Newmarket | 2024 |
| David Lucas Training Ltd | Liskeard | 2022 |
| David Lynch Foundation UK | Woodbridge | 2012 |
| David Malthouse Training Limited | Southend-On-Sea | 2013 |
| David Mason Personal Training Limited | Stockport | 2020 |
| David Mckeegan Limited | Coventry | 2003 |
| David Millar Coaching Ltd | London | 2026 |
| David Murphy Ltd | Shoreham-By-Sea | 2023 |
| David Neil Crabtree Ltd | Whitby | 2018 |
| David Oluwale Memorial Association | Leeds | 2012 |
| David Paul Cross Foundation Limited | Belfast | 2018 |
| David Peter Cardwell Ltd | Weston-Super-Mare | 2016 |
| David Rees Holistic Learning Ltd | Gloucester | 2023 |
| David Reynolds Consulting Services Limited | Cardiff | 2016 |
| David Ritchie and Associates Ltd | Rickmansworth | 2013 |
| David Ross Education Services Ltd | Loughborough | 2014 |
| David Shephard Limited | London | 2016 |
| David Spence Music Limited | Glasgow | 2016 |
| David Stinson Theatre School Limited | London | 2022 |
| David Sunman Ltd | Glasgow | 2020 |
| David Thomson Limited | Kettering | 2017 |
| David Tidmarsh Consulting Limited | Buckingham | 2019 |
| David Timms Consulting Limited | Warminster | 2011 |
| David W Porter Ltd | Nuneaton | 2023 |
| David Watson Tennis Limited | Southend-On-Sea | 2025 |
| David Watson Training Ltd | Ballinamallard | 2021 |
| David Weatherly Education Limited | Exeter | 2013 |
| David Werry Education Consultant Limited | Lichfield | 2015 |
| David Wicks Golf School Ltd | Battle | 2023 |
| David Wright Psychology Services Ltd | Cirencester | 2023 |
| David's Heart Empowerment and Community AID Initiative Ltd | Mitcham | 2022 |
| DAVID1HN Tutors Ltd | London | 2026 |
| Davidia Lifestyle Ltd | Richmond | 2022 |
| Davidson & Gill Executive Coaching Ltd | Broadstone | 2023 |
| Davidson Pre-School Ltd | Crawley | 2022 |
| Davidson Roberts Enterprises Limited | Towcester | 2022 |
| Davidson-Roberts Limited | Welwyn Garden City | 2006 |
| Davies Education Consultancy Ltd | Coalville | 2026 |
| Davies Education Ltd | Reading | 2022 |
| Davies Learning Solutions Limited | London | 2014 |
| Davies MHE Training Ltd | Manchester | 2021 |
| Davina Teaches Science Limited | Peterborough | 2026 |
| Davinci Corporation Ltd | Birmingham | 2024 |
| Davindar School of Motoring Ltd | London | 2026 |
| Davion Cares Limited | Bath | 2025 |
| Davis Marking Ltd | Bradford | 2023 |
| Davis Sounds | London | 2024 |
| Davito Musicals Ltd | Middlesbrough | 2025 |
| Davlab Ltd | London | 2019 |
| Davom International Global Ltd | Kington | 2026 |
| Davond Limited | Swindon | 2026 |
| Davyhulme PRE School Limited | Manchester | 2022 |
| DAW Training Limited | Plymouth | 2013 |
| Dawa Solutions Ltd | Cardiff | 2010 |
| Dawah Academy | Birmingham | 2019 |
| Dawar Al-Omda CIC | Cardiff | 2024 |
| Dawarat Academy Ltd | London | 2024 |
| Dawes House Limited | London | 2026 |
| Dawkins Educational Services Ltd | Sunbury-On-Thames | 2023 |
| Dawliffe Hall Educational Foundation | London | 1979 |
| Dawmouse Limited | London | 2014 |
| Dawn Aviation Limited | Hillsborough | 2014 |
| Dawn Booth Life Coach Ltd | Taunton | 2024 |
| Dawn Calling CIC | Edinburgh | 2023 |
| Dawn Chafer Limited | Plymouth | 2024 |
| Dawn Education Limited | Wolverhampton | 2025 |
| Dawn Grant Limited | Ashford | 2014 |
| Dawn Houghton Upholstery Training Ltd | Petersfield | 2025 |
| Dawn TIL Dusk Oosc Ltd | Wakefield | 2016 |
| Dawn Till Dusk Childcare | Middleton In Teesdale | 2003 |
| Dawn to Dusk Day Nursery (Maidstone) Ltd | West Malling | 2004 |
| Dawn to Dusk Day Nursery (Swanley) Ltd | Swanley | 2001 |
| Dawny's Daycare Ltd | Derby | 2012 |
| Dawood Driving School Ltd | London | 2025 |
| Dawood School of Motoring Limited | Birmingham | 2018 |
| Dawson Educational Psychology Services Ltd | Grantham | 2019 |
| Dawson's Academy of Dance & Stage Limited | Greater Manchester | 2004 |
| Daxa Enterprises Ltd | London | 2022 |
| Day Dream Nurseries Limited | Basingstoke | 2000 |
| Day Dreaming in CIC | London | 2026 |
| Day ELT Ltd | Brighton | 2016 |
| Day First AID Ltd | Goole | 2014 |
| Day One Trust | London | 2012 |
| Day School CIC | Stow Bardolph | 2021 |
| Dayah Community Organization Ltd | London | 2025 |
| Dayan P. Toledano Charitable Trust Limited | Middlesex | 1982 |
| Daybreak Holdings Ltd | Lewes | 2015 |
| Daybreak Nurseries Limited | Manchester | 2002 |
| Daycare Centres Limited | Blackburn | 2022 |
| Daydawnz Tutoring Community Interest Company | Bury St. Edmunds | 2022 |
| Daydream Believers Education Ltd | Edinburgh | 2021 |
| Daykin & Scott Dog Training & Behaviour Services Ltd | Ballyclare | 2021 |
| Daylight Academy | Kent | 2009 |
| Daypark Ltd | Newcastle Upon Tyne | 1996 |
| Dayplay Limited | | 2002 |