| Darabant Ltd | Wholesale & retail | 2015 |
| Darcy Property Developments Limited | Construction | 2012 |
| Dare to Club Ltd | Administrative & support | 2019 |
| Daren (Bristol) Limited | Wholesale & retail | 2016 |
| Dareshack Bristol Ltd | Hospitality | 2019 |
| Darhu Blinds Limited | Manufacturing | 2016 |
| Daring Two Consulting Ltd | Professional & scientific | 2024 |
| Darins Barbers Ltd | Other services | 2026 |
| Dario Cars Ltd | Transport & logistics | 2026 |
| Dario Transit Ltd | Transport & logistics | 2025 |
| Dariusz Transport Ltd | Transport & logistics | 2022 |
| Darjames Limited | Information & communication | 2002 |
| Dark Ice Limited | Professional & scientific | 2014 |
| Dark Lane Land Management Limited | Households | 2019 |
| Dark Ltd | Extraterritorial | 2006 |
| Dark Rock Films Ltd | Arts & recreation | 2018 |
| Dark Temple Motion Pictures Limited | Information & communication | 2015 |
| Darker Waters Limited | Information & communication | 2009 |
| Darkest Hour Events Ltd. | Arts & recreation | 2015 |
| Darkonium Limited | Information & communication | 2025 |
| Darlandhill Limited | Hospitality | 2006 |
| Darlington Arms Limited | Hospitality | 2026 |
| Darmia Healthcare Ltd | Health & social care | 2025 |
| Darmic Automotive Consultancy Limited | Administrative & support | 2016 |
| Darnie Hair Ltd | Other services | 2019 |
| Daroul Karrim Service Ltd | Administrative & support | 2023 |
| Darr Consultancy Ltd | Information & communication | 2014 |
| Darren Donovan Logistics Ltd | Transport & logistics | 2024 |
| Darren Hall Limited | Information & communication | 2007 |
| Darrt Limited | Wholesale & retail | 2002 |
| Darshraj Enterprises Limited | Wholesale & retail | 2019 |
| Dart Heating Ltd | Construction | 2022 |
| Dart Valley Estates Limited | Real estate | 2005 |
| Dart Valley Residential Limited | Real estate | 2024 |
| Dartasylum Competitions Ltd | Arts & recreation | 2025 |
| Dartasylum Group Ltd | Arts & recreation | 2024 |
| Dartington Portfolio Nominees Limited | Professional & scientific | 1980 |
| Dartlie Ltd | Real estate | 2024 |
| Dartmouth Homes Ltd | Construction | 2014 |
| Dartmouth Ltd | Manufacturing | 2023 |
| Dartmouth Mews (Bristol) Management Company Limited | Real estate | 2017 |
| Darts Asylum Ltd | Arts & recreation | 2023 |
| Daruma Scenic Designs Ltd | Professional & scientific | 2026 |
| Darvay Dermatology Ltd | Health & social care | 2020 |
| Darwin FX Limited | Construction | 2023 |
| DAS Contracts Ltd | Construction | 2014 |
| DAS Glazing Ltd | Construction | 2023 |
| DAS Interior Solutions Ltd. | Real estate | 2013 |
| DAS Property Care Ltd | Construction | 2026 |
| Dase Engineering Co. Limited | Wholesale & retail | 1978 |
| Dasgupta & Dhar Foods Ltd | Hospitality | 2024 |
| Dash & Miller Ltd | Manufacturing | 2013 |
| Dashboard Daddy Limited | Information & communication | 2024 |
| Dasher Group Limited | Financial services | 2015 |
| Dashi (Taunton) Limited | Wholesale & retail | 2015 |
| Dashington Troup Ltd | Real estate | 2021 |
| Dass Properties Ltd | Real estate | 2015 |
| DAT Healthcare Ltd | Health & social care | 2014 |
| Data Compliance and Integrity (Holdings) Ltd | Information & communication | 2018 |
| Data Concept Solutions Limited | Information & communication | 2017 |
| Data Cubed Limited | Information & communication | 2012 |
| Data Detail Limited | Professional & scientific | 2016 |
| Data Impact Limited | Information & communication | 2025 |
| Data Innovators Limited | Professional & scientific | 2006 |
| Data Patterns Limited | Information & communication | 2017 |
| Data Response Ability Holdings Limited | Real estate | 2002 |
| Data Science Technologies Ltd | Information & communication | 2022 |
| Data Unity Ltd | Information & communication | 2012 |
| Data Validation Ltd | Information & communication | 2024 |
| Data-Edge Analytics Ltd | Information & communication | 2020 |
| DATA7 Ltd | Manufacturing | 2020 |
| Database Communications Ltd | Information & communication | 2002 |
| Database Computing Services Limited | Real estate | 1995 |
| Dataeyez Ltd | Information & communication | 2021 |
| Datafan Ltd | Information & communication | 2023 |
| Datafinops Limited | Information & communication | 2023 |
| Datamine Corporate Limited | Mining & quarrying | 1982 |
| Datamine International Limited | Information & communication | 1996 |
| Datamine Software Limited | Information & communication | 1996 |
| Datanomita Limited | Information & communication | 2015 |
| Dataplanet Limited | Information & communication | 2024 |
| Datarobot UK Ltd | Information & communication | 2015 |
| Datasearch Limited | Professional & scientific | 2000 |
| Datasearch Nominees Limited | Professional & scientific | 1992 |
| Datatote (England) Limited | Manufacturing | 1979 |
| Date Developments Ltd | Real estate | 2002 |
| Date Night Corp Ltd | Information & communication | 2025 |
| Dateera Ltd | Information & communication | 2025 |
| Datojem Limited | Agriculture & fishing | 2010 |
| Datum Flair Ltd | Information & communication | 2025 |
| Datum Site Engineering Ltd. | Construction | 2017 |
| Datumpin Limited | Professional & scientific | 2017 |
| Daubeny Court Management Company Limited | Administrative & support | 1984 |
| Daud CAB Ltd | Transport & logistics | 2025 |
| Daud Taxi Ltd | Transport & logistics | 2023 |
| Daud Transport Ltd | Transport & logistics | 2025 |
| Daugalas Marine Engineering Ltd | Construction | 2025 |
| Dave Barnett Ltd | Real estate | 2020 |
| Dave Benton Ltd | Construction | 2017 |
| Dave Elles Fleet Mobile Servicing Limited | Wholesale & retail | 2005 |