| Diamonsa Ltd | Real estate | 2019 |
| Diesel House Studios Limited | Arts & recreation | 2004 |
| Digit Systems Ltd | Information & communication | 2015 |
| Digital Empyre Ltd | Professional & scientific | 2025 |
| Digital Transport Solutions Ltd | Transport & logistics | 2018 |
| Dikmen Ltd | Hospitality | 2025 |
| Dino's Tattooist Limited | Administrative & support | 2007 |
| Direct Impressions Ltd | Professional & scientific | 2018 |
| Direct Resolution Ltd | Transport & logistics | 2018 |
| Direct UK Deals Limited | Wholesale & retail | 2011 |
| Direct Waste Disposals Ltd | Water & waste | 2023 |
| DIRECT2HEALTH Ltd | Health & social care | 2021 |
| Discovery Counselling and Wellbeing Services Ltd | Health & social care | 2024 |
| Divine Aesthetics Bristol Ltd | Other services | 2026 |
| Divinecastle Ltd | Wholesale & retail | 2011 |
| Dixy Chicken Bristol Limited | Hospitality | 2020 |
| DKK Contracting Ltd | Information & communication | 2015 |
| DL Engineering Ltd | Wholesale & retail | 2023 |
| DLC Garage Ltd | Manufacturing | 2025 |
| DLL Empires Ltd | Hospitality | 2025 |
| DLS Window Care Limited | Construction | 2021 |
| DM Dragons Construct Ltd | Construction | 2020 |
| DM Marketplace Limited | Wholesale & retail | 2023 |
| DMH Interiors Ltd | Construction | 2015 |
| DMH Properties SW Ltd | Real estate | 2020 |
| DMK Properties (SW) Limited | Real estate | 2020 |
| DNE (WSM) Limited | Construction | 2020 |
| Dog Central Ltd | Agriculture & fishing | 2013 |
| Dog With a Bone Ltd | Professional & scientific | 2023 |
| Dolphin River Park Limited | Hospitality | 2003 |
| Dominium Limited | Real estate | 1945 |
| Doorstep Investments Limited | Real estate | 2019 |
| Dosstown Ltd | Information & communication | 2025 |
| Double Check Dynamics Ltd | Professional & scientific | 2025 |
| Dove Plumbing & Heating Ltd | Construction | 2023 |
| Dovecote (Drayton) Management Company Limited | Households | 2017 |
| Doves Keep Management Company Limited | Households | 2014 |
| Dowlas (Professional Recruitment) Ltd | Administrative & support | 2012 |
| Dowlas U.K. Ltd | Real estate | 2010 |
| Downshire Services Limited | Professional & scientific | 2013 |
| DPC Environmental Ltd | Professional & scientific | 2017 |
| DR Glass Ltd | Construction | 2022 |
| DR Shirin Clinic Ltd | Health & social care | 2017 |
| DR Singh Psychiatric Services Ltd | Health & social care | 2026 |
| Dragon Balloon Company Limited | Arts & recreation | 2002 |
| Dragon Tour Limited | Transport & logistics | 2025 |
| Dragonscale Cards Ltd | Wholesale & retail | 2025 |
| Drayton House Management Company (WSM) Limited | Households | 1993 |
| Dread Rock Designs Ltd | Extraterritorial | 2023 |
| Dream Teams Books Ltd | Information & communication | 2024 |
| Dreamcoat Limited | Administrative & support | 2012 |
| Drinkwater Tree Services Ltd | Administrative & support | 2015 |
| Driving Lessons & Routes Ltd | Wholesale & retail | 2024 |
| DRIVINGSTR8 Ltd | Transport & logistics | 2019 |
| DRL Properties Ltd | Real estate | 2019 |
| Drshika Life Limited | Professional & scientific | 2024 |
| Drtm Consultancy Ltd | Professional & scientific | 2023 |
| Druidstone Ltd | Hospitality | 2024 |
| Drycon Limited | Construction | 2006 |
| Drycon Service Limited | Construction | 2022 |
| DS Roofing SW Limited | Construction | 2017 |
| DSH Telecom Ltd | Construction | 2026 |
| DT Tiling South West Limited | Construction | 2018 |
| DTV Aerials Ltd | Construction | 2011 |
| Dubai BBQ Ltd | Hospitality | 2024 |
| Dubai BBQ Weston Ltd | Hospitality | 2025 |
| Duda Property Investments Ltd | Real estate | 2026 |
| Dudek Property Ltd | Real estate | 2022 |
| Duke Collective Ltd | Professional & scientific | 2026 |
| Dullehan Limited | Construction | 2017 |
| Duncan Cameron Property Holdings Ltd | Real estate | 2022 |
| Duncans Barber Shop Limited | Other services | 2015 |
| Dundas Building Surveying Ltd | Professional & scientific | 2021 |
| Dunedin Mansions Management Company Limited | Households | 1995 |
| Dunrowan Mansions Management Company Limited | Households | 2000 |
| Dunwood Ltd | Manufacturing | 2012 |
| Dura Business Services Limited | Financial services | 2022 |
| DV Enterprise Limited | Transport & logistics | 2024 |
| DVT Enterprise Ltd | Hospitality | 2014 |
| DW Windows & Gutters Limited | Administrative & support | 2023 |
| Dynamic LGV Driver Training Limited | Transport & logistics | 2007 |
| Dynamic LGV Logistics Limited | Transport & logistics | 2023 |
| Dynamic Surface Repair Specialists Ltd | Construction | 2020 |
| Dynamic Warehouse Ltd | Wholesale & retail | 2022 |
| Dynaton Limited | Professional & scientific | 2025 |
| E & S Properties Limited | Real estate | 2003 |
| E & T Vets Ltd | Professional & scientific | 2019 |
| E T M Financial Planning Ltd | Financial services | 2012 |
| E.G. 2015 Ltd | Transport & logistics | 2020 |
| E.J. Mcgrath Holdings Limited | Financial services | 2026 |
| E.J. Mcgrath Investments Limited | Real estate | 2026 |
| E.J.Mcgrath Construction Limited | Construction | 2007 |
| E.K. Tech Ltd | Professional & scientific | 2024 |
| E.M.R. Electronics Ltd | Manufacturing | 2026 |
| E3 Properties Ltd | Real estate | 2025 |
| EA Property Management Ltd | Real estate | 2023 |
| EAM Lucas Lettings Ltd | Real estate | 2025 |
| Earlfield ZG Limited | Health & social care | 2021 |
| Eastern House (WSM) Management Company Limited | Households | 1998 |
| Eastern Mansions Management Limited | Households | 1988 |