| Divine Vision London Ltd | Health & social care | 2014 |
| Diving World (UK) Limited | Hospitality | 1995 |
| DJ & Sons Hayes Limited | Real estate | 2025 |
| DJ Aran Ltd | Information & communication | 2018 |
| DJ Bookkeeping Limited | Professional & scientific | 2007 |
| DJ Domestic Appliances Service & Repairs Ltd | Other services | 2015 |
| DJ Finance Ltd | Real estate | 2020 |
| DJ Restoration Ltd | Construction | 2015 |
| DJ Roofing Hayes Ltd | Construction | 2018 |
| DJJ Assets Ltd | Real estate | 2024 |
| DK & AS Homes Limited | Real estate | 2017 |
| DK Building & Decorating Contractor Ltd | Construction | 2017 |
| DK Kitchen & Wardrobe UK Limited | Manufacturing | 2017 |
| DK Prime Build Ltd | Construction | 2026 |
| DK Toys Ltd | Wholesale & retail | 2024 |
| DK87 Ltd | Administrative & support | 2025 |
| DKL Aircon & Renewable Ltd | Construction | 2024 |
| DKL Courier Ltd | Transport & logistics | 2026 |
| DKS Property Management Ltd | Real estate | 2020 |
| Dlsf Limited | Hospitality | 2026 |
| DM Cricket Coaching and Sports Management Limited | Arts & recreation | 2022 |
| Dmab Medical Company Limited | Health & social care | 2018 |
| Dmfa Electronics Ltd | Professional & scientific | 2018 |
| Dmksupplies Ltd | Wholesale & retail | 2021 |
| DMS Property Ltd | Administrative & support | 2016 |
| DMS Services Limited | Transport & logistics | 2023 |
| DND Builder Ltd | Construction | 2019 |
| Doaba Construction UK Ltd | Construction | 2025 |
| Doaba Kitchen Ltd | Hospitality | 2023 |
| Doaba Taste Limited | Hospitality | 2024 |
| Doaba Tiffin Services Ltd | Hospitality | 2024 |
| DOC Barnet Ltd | Administrative & support | 2017 |
| Dockwind Limited | Wholesale & retail | 2025 |
| Doculink Express Ltd | Transport & logistics | 2018 |
| Dodi Transport Limited | Transport & logistics | 2018 |
| Doll & Doll Ltd | Education | 2021 |
| Dollys News Limited | Wholesale & retail | 2018 |
| Dom's Workshop Ltd | Wholesale & retail | 2024 |
| Dominique Jade Ltd | Professional & scientific | 2026 |
| Dompablo Ltd | Information & communication | 2020 |
| Doon Asset Management Ltd | Information & communication | 2021 |
| Door 2 Door Pizza Hayes Ltd | Hospitality | 2017 |
| Doorman Recruitment Ltd | Administrative & support | 2020 |
| Doorstep Designs Limited | Professional & scientific | 2024 |
| Doppio JP Ltd | Information & communication | 2010 |
| Dorchester Homes London Ltd | Construction | 2012 |
| Doris Fashionz Ltd | Professional & scientific | 2023 |
| Dory Home Care Ltd | Administrative & support | 2024 |
| Dostum Security Ltd | Financial services | 2025 |
| Down Way Ltd | Administrative & support | 2024 |
| Doxe Ltd | Transport & logistics | 2024 |
| DPA Property Investments Ltd | Real estate | 2024 |
| DPG Investments Ltd | Real estate | 2023 |
| DPK Courier PVT Ltd | Transport & logistics | 2024 |
| DPM Propeties Ltd | Real estate | 2021 |
| DPS Construction London Limited | Construction | 2024 |
| DR Everything Ltd | Wholesale & retail | 2021 |
| DR German Motors & Services Ltd | Wholesale & retail | 2026 |
| DR Huda Yassin Ltd | Health & social care | 2016 |
| DR LU Allcare Ltd | Health & social care | 2022 |
| DR Minibus Ltd | Transport & logistics | 2019 |
| DR Mustafa Feroz Ltd | Health & social care | 2024 |
| DR Rashid Ltd | Health & social care | 2016 |
| DR Rohan Nagar Limited | Administrative & support | 2017 |
| Drain-Away Hayes Limited | Water & waste | 2020 |
| DRD Rail Solutions Limited | Construction | 2019 |
| Dream Building Works Ltd | Construction | 2024 |
| Dream Carpet Ltd | Wholesale & retail | 2022 |
| Dream Commercial Limited | Real estate | 2026 |
| Dream Design & Build Ltd | Construction | 2025 |
| Dream Fitted Wardrobes Ltd | Manufacturing | 2024 |
| Dream Glazing Ltd | Construction | 2023 |
| Dream Global Advisors Ltd | Information & communication | 2026 |
| Dream House Interiors Limited | Construction | 2017 |
| Dream Ideas London Ltd | Wholesale & retail | 2023 |
| Dream Ideas UK Limited | Wholesale & retail | 2020 |
| Dream Keys Construction Ltd | Construction | 2025 |
| Dream Space Properties Limited | Construction | 2018 |
| Dream Touch Brick Work Limited | Construction | 2024 |
| Dream Villas Constructions Ltd | Construction | 2024 |
| Dream-Klean- Team Ltd | Administrative & support | 2023 |
| Dreamland Plus Ltd | Wholesale & retail | 2023 |
| Dreamline Homes Ltd | Real estate | 2020 |
| Dreamline Interiors Ltd | Manufacturing | 2019 |
| Dreams Fitted Home Interiors Ltd | Manufacturing | 2023 |
| Dreams Private Ltd | Real estate | 2026 |
| Dreamz House Construction Ltd | Construction | 2020 |
| Drgoraya Limited | Health & social care | 2024 |
| Drinks Cash & Carry Ltd | Wholesale & retail | 2021 |
| Drinks Direct Hayes Limited | Wholesale & retail | 2020 |
| Drinks Supermarket Ltd | Wholesale & retail | 2024 |
| Driv.London Ltd | Transport & logistics | 2023 |
| Drive City Driving School Ltd | Education | 2022 |
| Drive My Dog Ltd | Transport & logistics | 2023 |
| Drive Nest Ltd | Wholesale & retail | 2025 |
| Drive Supreme Limited | Education | 2025 |
| Drivem Ltd | Wholesale & retail | 2019 |
| Drivex Express Limited | Transport & logistics | 2025 |
| Drivvn Ltd | Information & communication | 2020 |
| DRK Construction Ltd | Construction | 2017 |