| DG Property & Construction Ltd | Real estate | 2025 |
| DI Logistics Ltd | Transport & logistics | 2015 |
| Diagnostic Connections Limited | Wholesale & retail | 2019 |
| Diamond Nails & Aesthetics Ltd | Other services | 2022 |
| Diesel Technic UK & Ireland Ltd. | Wholesale & retail | 2015 |
| Dietz Rehab Limited | Wholesale & retail | 2021 |
| Digital Retail Developments Limited | Professional & scientific | 2025 |
| Digital Sizzle UK Ltd | Professional & scientific | 2026 |
| Digital Vellum Ltd | Arts & recreation | 2022 |
| Dimar (Holdings) Limited | Financial services | 2012 |
| Dimension Power Services Limited | Construction | 2021 |
| Dingle Rising Limited | Hospitality | 2024 |
| Dino, Action and Adventure Limited | Arts & recreation | 2023 |
| Direct Distribution Online Limited | Wholesale & retail | 2021 |
| Direct Payment Support Team Ltd | Professional & scientific | 2022 |
| Discover Stone Ltd | Transport & logistics | 2015 |
| Discover Stone Properties Ltd | Real estate | 2018 |
| Discover Stone Storage Ltd | Transport & logistics | 2023 |
| Divine Healthcare Staffing Ltd | Health & social care | 2025 |
| Djcm Automotive Ltd | Manufacturing | 2026 |
| DJM Training Limited | Professional & scientific | 2011 |
| Dkfc Ltd | Hospitality | 2024 |
| DKL Healthcare Limited | Health & social care | 2018 |
| DKM Entertainment Ltd | Arts & recreation | 2025 |
| Dkrfc (Trading) Limited | Arts & recreation | 2018 |
| DLC Subco Limited | Manufacturing | 2019 |
| DLM Vehicle Lease Ltd | Administrative & support | 2025 |
| Dlux Group Limited | Real estate | 2025 |
| Dlux Interiors Ltd | Wholesale & retail | 2020 |
| Dmei Medical Limited | Health & social care | 2017 |
| DMM (West Midlands) Limited | Wholesale & retail | 2013 |
| DMW Cost Engineering Services Limited | Professional & scientific | 2023 |
| Dolphin Quays Apartments Limited | Households | 2012 |
| Doortek Solutions Ltd | Administrative & support | 2016 |
| Doran Property Holdings Ltd | Real estate | 2025 |
| Dormer Construction Limited | Construction | 2009 |
| Dottie 2007 Ltd | Wholesale & retail | 2010 |
| Dotty Hens Ltd | Wholesale & retail | 2014 |
| DPM Recycling Limited | Water & waste | 2013 |
| DPW Property Holdings Ltd | Real estate | 2024 |
| DR Melanie's Well-Being Limited | Health & social care | 2021 |
| DR Victoria Hobday Ltd | Health & social care | 2018 |
| Drainscan Midlands Ltd | Water & waste | 2020 |
| Draycott Management Services Ltd | Professional & scientific | 2002 |
| Dreamworx Ltd | Manufacturing | 2025 |
| Driven 2 Succeed Ltd | Education | 2022 |
| Driving Instructor Hub Ltd | Education | 2023 |
| Droitwich Spa Food & Drink Festival Limited | Administrative & support | 2014 |
| DS George Ltd | Construction | 2025 |
| DS Rail Solutions Ltd | Construction | 2024 |
| DTG Scaffolding Ltd | Construction | 2022 |
| DTW Distribution Ltd | Transport & logistics | 2019 |
| Dudley Aerial Services Limited | Manufacturing | 1975 |
| Dudley Crossroads | Health & social care | 1996 |
| Dudley Kingswinford Rugby Football Club Limited | Arts & recreation | 2018 |
| Dudley Parent Carer Forum CIC | Information & communication | 2024 |
| Dudley Physiotherapy Clinic Limited | Health & social care | 2016 |
| Dudley Scaffolding Co Limited | Construction | 2006 |
| Dudley Stroke Association | Health & social care | 2003 |
| Duncombe's Master Butchers Limited | Wholesale & retail | 2003 |
| Dunne & Hopson Holdings Ltd | Real estate | 2021 |
| DUO Developments Ltd | Construction | 2016 |
| Duraserve Ltd | Professional & scientific | 2022 |
| During Medical Limited | Health & social care | 2019 |
| Dusanj Developments Limited | Financial services | 2023 |
| Dusanj Group Limited | Real estate | 2017 |
| Dusanj Holdings Limited | Real estate | 2017 |
| Dusanj Limited | Real estate | 2017 |
| Dusanj Real Estate Limited | Real estate | 2017 |
| DW Wifi Ltd | Information & communication | 2011 |
| Dwello Partnerships Ltd | Construction | 2025 |
| DX Chinese Limited | Hospitality | 2019 |
| DY5 Self Storage Ltd | Administrative & support | 2026 |
| DY6 Bricklaying and Building Services Ltd | Construction | 2021 |
| DY9 Design Limited | Other services | 2015 |
| Dynuk Limited | Administrative & support | 2020 |
| Dyslexia Access UK Limited | Education | 2023 |
| E & P Electrical Ltd | Construction | 1997 |
| E.M.U. Engineering Limited | Manufacturing | 1981 |
| E.T.L Installations Ltd | Construction | 2022 |
| Eaglecrest Construction Ltd | Construction | 2018 |
| EAP Logistics Ltd | Transport & logistics | 2023 |
| Easi Feed Products Ltd | Administrative & support | 2017 |
| Eaton Paving Limited | Construction | 2017 |
| ECCO2 Limited | Professional & scientific | 2008 |
| ECD Holdings Limited | Real estate | 2016 |
| Ecka Ltd | Construction | 2024 |
| Ecoceramic U.K. Ltd | Wholesale & retail | 2022 |
| Eden Arboriculture Ltd | Administrative & support | 2016 |
| Edgeviewautomation Ltd | Construction | 2024 |
| Edgeviewcivils Ltd | Construction | 2025 |
| Editeur Print Limited | Information & communication | 2010 |
| Edmunds Enterprises Limited | Professional & scientific | 2015 |
| Edmunds Property Investors Ltd | Real estate | 2025 |
| Edward Lisle Gardens Management Company Limited | Real estate | 2007 |
| EFE Restaurant Ltd | Hospitality | 2026 |
| EG Agri Limited | Agriculture & fishing | 2003 |
| Egcb Holdings Limited | Financial services | 2019 |
| Eggar Engineering Ltd | Manufacturing | 2025 |
| Ehyz Limited | Hospitality | 2025 |