| Durleigh View Residents Management Company Limited | Households | 2026 |
| Durnalls Garden Services Ltd | Administrative & support | 2024 |
| Durolas (Contractors) Limited | Construction | 1947 |
| Durose Professional Services Limited | Professional & scientific | 2025 |
| Dusek Delivery Ltd | Transport & logistics | 2026 |
| Dushku Property Investments Ltd | Real estate | 2024 |
| Dusk TIL Dawn Cleaning Service Ltd | Administrative & support | 2021 |
| Dusk TIL Dawn Integrated Services Ltd | Administrative & support | 2026 |
| Dust of Gold Limited | Arts & recreation | 2016 |
| Dustination Ltd | Information & communication | 2024 |
| Dustone International Ltd | Wholesale & retail | 2025 |
| Dutch Mini Pancakes UK Ltd | Hospitality | 2026 |
| Dutchess & Tyger Ltd | Manufacturing | 2025 |
| Dutchies Café Ltd | Hospitality | 2026 |
| Dutchpro UK Ltd | Administrative & support | 2012 |
| Dutchy Labs Limited | Manufacturing | 2016 |
| Duty Coins Ltd | Other services | 2024 |
| Duvyatravel Ltd | Administrative & support | 2025 |
| Duxbury Residential Limited | Real estate | 2015 |
| DV Courier Services Limited | Transport & logistics | 2018 |
| DV Duple Limited | Construction | 2017 |
| DV21 Ltd | Health & social care | 2021 |
| DVK Engineering Ltd | Administrative & support | 2019 |
| DVN Investments Ltd | Real estate | 2025 |
| DVN1 Limited | Hospitality | 2025 |
| DVP Plus Limited | Manufacturing | 2019 |
| DVS Marketing Ltd | Professional & scientific | 2018 |
| Dvsnights Ltd | Transport & logistics | 2025 |
| Dvss-Uk Ltd | Administrative & support | 2020 |
| DW Airbnbs Limited | Real estate | 2026 |
| Dwai Health Ltd | Manufacturing | 2023 |
| Dwashland Ltd | Other services | 2025 |
| Dwell Asset Group Limited | Real estate | 2020 |
| Dwell Homecare Limited | Administrative & support | 2015 |
| Dwell Property Solutions Limited | Financial services | 2021 |
| Dwell Residential Care, Training and Housing Solutions Ltd | Professional & scientific | 2017 |
| Dwell Sure Ltd | Real estate | 2025 |
| Dwelling Support Ltd | Real estate | 2025 |
| Dwellings Estates Ltd | Real estate | 2020 |
| Dwellings Maintenance Ltd | Construction | 2019 |
| Dwellings Plus Ltd | Real estate | 2025 |
| Dwellings Property Consultancy Ltd | Real estate | 2015 |
| Dwellings Property Solutions Ltd | Real estate | 2015 |
| Dwellplex Ltd | Real estate | 2023 |
| Dwelvia Ltd | Real estate | 2025 |
| DWG Group Limited | Administrative & support | 2008 |
| DWJ (Birmingham) Ltd | Wholesale & retail | 2010 |
| DWJ Harkin Ltd | Construction | 1986 |
| DWK Services Ltd | Transport & logistics | 2025 |
| DWL Construction Consultancy Limited | Professional & scientific | 2023 |
| DWM Administration Services Limited | Professional & scientific | 2022 |
| DWM Broadband Limited | Professional & scientific | 2022 |
| DWM Energy Services Limited | Professional & scientific | 2022 |
| DWM EOT Limited | Professional & scientific | 2025 |
| DWM Fundraising Limited | Professional & scientific | 2022 |
| DWR Industrial Linings Ltd | Construction | 2024 |
| DWR Roofing & Carpentry Ltd | Manufacturing | 2023 |
| DWS DB Ltd | Wholesale & retail | 2023 |
| DWS Studio Ltd | Professional & scientific | 2022 |
| Dwsupplies Ltd | Wholesale & retail | 2022 |
| DWT Holdings Services Limited | Health & social care | 2025 |
| DWW Solihull Ltd | Hospitality | 2024 |
| DX Autofix Ltd | Wholesale & retail | 2024 |
| DX Housing Services Ltd | Real estate | 2026 |
| DX Rents Limited | Real estate | 2026 |
| DX Utilities Ltd | Administrative & support | 2026 |
| DXB Aromas Ltd | Wholesale & retail | 2025 |
| DXB Autos Ltd | Wholesale & retail | 2021 |
| Dxcs Ltd | Information & communication | 2019 |
| DXG Consultancy Ltd | Information & communication | 2020 |
| DXM Properties Ltd | Construction | 2021 |
| Dxmt International Ltd | Construction | 2023 |
| DXR Ltd | Hospitality | 2023 |
| DY Kitchen Limited | Hospitality | 2025 |
| DY Nutrition Global Ltd | Wholesale & retail | 2019 |
| DY Nutrition Worldwide Ltd | Manufacturing | 2020 |
| DY Properties Ltd | Wholesale & retail | 2020 |
| DY Removal Ltd | Transport & logistics | 2025 |
| DY Trade 2 Ltd | Real estate | 2021 |
| DY Trade 3 Ltd | Real estate | 2021 |
| DY Trade 4 Ltd | Wholesale & retail | 2021 |
| DY Trade 5 Ltd | Wholesale & retail | 2025 |
| DY2 Foods Ltd | Hospitality | 2025 |
| DYA Mini Market Ltd | Wholesale & retail | 2020 |
| DYA Trades Limited | Wholesale & retail | 2023 |
| DYA Trading Ltd | Administrative & support | 2022 |
| Dyako Motor Ltd | Wholesale & retail | 2025 |
| Dyam Consultancy Services Ltd | Health & social care | 2019 |
| Dyari Automotive Ltd | Wholesale & retail | 2026 |
| Dyasana Limited | Professional & scientific | 2016 |
| DYC (Trading) Ltd | Hospitality | 2022 |
| DYE Vert Aesthetics Limited | Administrative & support | 2021 |
| DYE Vert Hair & Beauty Ltd | Other services | 2020 |
| Dyemond Builders Ltd | Construction | 2026 |
| Dylan Clift TM OP Ltd | Construction | 2025 |
| Dylan Group 247 Ltd | Wholesale & retail | 2025 |
| Dylanfun Ltd | Real estate | 2024 |
| Dylans Autos Limited | Wholesale & retail | 2020 |
| Dylans Vehicle Solutions Limited | Administrative & support | 2016 |
| Dylan’S Constructions Limited | Construction | 2023 |