| David Pugh (the Band) Limited | London | 2016 |
| David Renshaw Artist Limited | Bolton | 2012 |
| David Renwick Limited | London | 1971 |
| David Richard Wynne Limited | Alnwick | 2017 |
| David Rickard Ltd | London | 2017 |
| David Ridley Artist Ltd | Daventry | 2016 |
| David Ridley Ltd | London | 2026 |
| David Rose Ltd | 1 South Wharf Road | 1997 |
| David ROY Williams Limited | Old Hatfield | 2017 |
| David S. Lockwood Truth and Fantasy Ltd | London | 2025 |
| David Sharp Darts Limited | Edinburgh | 2026 |
| David Sheil Studio Ltd | Seaford | 2022 |
| David Shilling Limited | | 1997 |
| David Shilling of London Limited | | 1997 |
| David Simcock Racing Ltd | Newmarket | 2003 |
| David Speed Creative Ltd | London | 2021 |
| David Spurgeon Ltd | Rugby | 2016 |
| David Storey Family Ltd | Newport-On-Tay | 2019 |
| David Strettle Limited | Kirk Deighton | 2008 |
| David Sudlow Designers Limited | Manchester | 2014 |
| David Sutton (Cars) Ltd | Wakefield | 2018 |
| David Taylor Events Limited | Glasgow | 2003 |
| David Taylor Ltd | Brighton | 2003 |
| David Thexton Mountain Guide Ltd | Carnforth | 2025 |
| David Tolley Limited | Oxford | 1994 |
| David Tress | Haverfordwest | 2009 |
| David Vickery Limited | London | 2014 |
| David Walker Music Limited | Belfast | 2022 |
| David Watkinson Sculpture Limited | Leeds | 2013 |
| David Wheeler Limited | Penarth | 1986 |
| David White SET Design Limited | Bexhill | 2013 |
| David William Bryan Productions Ltd | Hull | 2019 |
| David Woolf Limited | London | 1997 |
| David's 30 Ltd | Derby | 2024 |
| David's Big Hand Limited | | 2003 |
| Davidfulchergolf Ltd | Towcester | 2012 |
| Davidmankinart Ltd | Penzance | 2026 |
| Davidson Caddying Limited | Edinburgh | 2022 |
| Davidstow Airfield and Cornwall at WAR Museum Limited | Bodmin | 2007 |
| Davidstow Flying Club Limited | Camelford | 2006 |
| Davidstow Moor RAF Memorial Museum Community Interest Company | Camelford | 2017 |
| Davie Pro Fitness Ltd | Northampton | 2026 |
| Davies's Dolphin Swim School Ltd | Pontypridd | 2022 |
| Davin Fitness Limited | 80-82 White Lion Street, | 2024 |
| Davina Perrin Ltd | Wolverhampton | 2025 |
| Davina Shum Ltd | Bedford | 2026 |
| Davinia Watson Art Ltd | Aldershot | 2025 |
| Davis Boxing Limited | Leeds | 2025 |
| Davis Fitness Limited | Harpenden | 2017 |
| Davis Health and Fitness Ltd | Newcastle Upon Tyne | 2017 |
| Davis Sports Management Limited | Yeovil | 2021 |
| Davista Ltd | Hove | 2026 |
| Daviz Cartoons Limited | Waterlooville | 2005 |
| Davo Touring Limited | Manchester | 2012 |
| Davog Ltd | Duungannon | 2024 |
| Davray Music Limited | | 1966 |
| Dawbell Limited | London | 2009 |
| Dawbell Talent Limited | London | 2011 |
| Dawkins DJ Ltd | Newcastle Upon Tyne | 2021 |
| Dawko Limited | Birmingham | 2023 |
| Dawlish Airshow Ltd | Teignmouth | 2010 |
| Dawlish and District Indoor Bowls Association Limited (the) | Devon. | 1971 |
| Dawlish Celebrates Carnival CIC | Dawlish | 2017 |
| Dawn and Co Enterprise Ltd | Doncaster | 2020 |
| Dawn Conn Sculpture Limited | Oxford | 2023 |
| Dawn Holding Company LLC Trading AS Dawn Holding Company Ltd | London | 2019 |
| Dawn Lamb Fitness Limited | Ely | 2016 |
| Dawn of Chivalry Limited | Hutton Henry | 2022 |
| Dawn Smalberg Productions UK Ltd | London | 2022 |
| Dawn Stage Limited | Carlisle | 2018 |
| Dawn Wheeler Crafts Limited | Mansfield | 2014 |
| Dawns I Bawb | Caernarfon | 2005 |
| Dawnstar Gaming CIC | Runcorn | 2023 |
| Dawood Industries Ltd | London | 2021 |
| Dawsella Limited | Warrington | 2024 |
| Dawson School of Performing Arts Ltd | Bexley | 2021 |
| Dawsonsbrush Limited | Fleetwood | 2017 |
| Dawwal Ltd | London | 2023 |
| DAX O'Callaghan Limited | London | 2021 |
| Daxie Creative Ltd | Cardiff | 2025 |
| Daximma Fiction Limited | London | 2002 |
| Daxtonbury Chris Kelly Festivals Limited | Wellingborough | 2018 |
| Day in Day OUT Limited | Newport | 2024 |
| Day JOB Music Ltd | Royston | 2025 |
| Day JOB Theatre Ltd | Teddington | 2024 |
| Day One Artists Ltd | London | 2020 |
| Day One Productions Limited | London | 2007 |
| Day OUT With the Kids Ltd | Solihull | 2006 |
| Day Rising Limited | London | 2016 |
| Day Street Media Ltd | London | 2024 |
| Day Trip Ltd | London | 2023 |
| Day Trips With JO & Mark C.I.C. | Liverpool | 2026 |
| Day Two Productions Limited | London | 2010 |
| Daya Press Ltd | Bushey | 2026 |
| Dayan Ltd | London | 2026 |
| Daybreak Creative Limited | St. Albans | 2008 |
| Daybreak Tickets Ltd | Cardiff | 2017 |
| Daybrook Bowls Club Limited | Nottingham | 2025 |
| Daydream Creative Limited | London | 2025 |
| Daydream Draws Ltd | Dingwall | 2024 |