| Diamondldnhair Limited | Wholesale & retail | 2021 |
| Didomi Solutions Limited | Administrative & support | 2009 |
| Diginext Limited | Wholesale & retail | 2025 |
| Digismarties Ltd | Information & communication | 2022 |
| Digital Cloud Management Ltd | Information & communication | 2025 |
| Digitalige Limited | Information & communication | 2012 |
| Digitech Solutions Limited | Wholesale & retail | 2025 |
| Diharin Ltd | Wholesale & retail | 2021 |
| Dimi Properties Limited | Real estate | 2025 |
| Diplomat Services Real Estate & Builders Ltd | Real estate | 2020 |
| Directing Finance Limited | Wholesale & retail | 2024 |
| Diskel Consulting (UK) Limited | Information & communication | 1998 |
| Diskel Limited | Information & communication | 1977 |
| Distinctive Developments London Ltd | Construction | 2025 |
| Diversity Diagnostics Ltd | Professional & scientific | 2021 |
| Divine Appetite Limited | Hospitality | 2023 |
| DJJ Thind Construction Limited | Construction | 2025 |
| Djrnr Ltd | Wholesale & retail | 2023 |
| DK Premier Properties Ltd | Real estate | 2025 |
| Dlrr Limited | Transport & logistics | 2024 |
| Dlva Ltd | Administrative & support | 2025 |
| DMP International Limited | Other services | 1994 |
| Dobro.Ru Ltd | Construction | 2018 |
| Doglight Limited | Health & social care | 2021 |
| Domestic Aircon Solutions Ltd | Energy | 2022 |
| Dominus Consulting Ltd | Professional & scientific | 2015 |
| Donest General Ltd | Construction | 2015 |
| Dope Threads Limited | Wholesale & retail | 2023 |
| Dorcalfred Ltd | Wholesale & retail | 2024 |
| Dorcas Enterprises Limited | Health & social care | 2015 |
| Dorian Plant Limited | Water & waste | 2013 |
| Dormant Company 11951926 Ltd | Extraterritorial | 2019 |
| Dosti Villas Property Management UK Ltd | Real estate | 2026 |
| Dosti Villas UK Ltd | Real estate | 2024 |
| Dozington Decor Ltd | Construction | 2013 |
| Drawing World Limited | Professional & scientific | 2009 |
| Drayton Barbers Ltd | Other services | 2024 |
| Drayton Foods Ltd | Manufacturing | 2020 |
| Drayton Packaging Ltd | Construction | 2021 |
| Drayton Pest Management Limited | Administrative & support | 2025 |
| Drayton Phones Ltd | Wholesale & retail | 2024 |
| Drayton Plastics Ltd | Water & waste | 2021 |
| Drayton Smart Body Repairs Ltd | Wholesale & retail | 2025 |
| Dream Builders PVT Ltd | Construction | 2020 |
| Dream Nova Ltd | Manufacturing | 2026 |
| Driveline Motors Limited | Wholesale & retail | 2012 |
| Driver Connect Ltd | Transport & logistics | 2023 |
| Drivers 247 Limited | Administrative & support | 2004 |
| Drivex VIP Ltd | Wholesale & retail | 2025 |
| DS Accessories Ltd | Wholesale & retail | 2015 |
| DSD Services (UK) Limited | Wholesale & retail | 2014 |
| Dsl&Son's Ltd | Construction | 2022 |
| Du'Barry Group Limited | Real estate | 1996 |
| Dubes Services Ltd | Health & social care | 2019 |
| Duka Distribution Ltd | Wholesale & retail | 2023 |
| Duka Group Ltd | Real estate | 2024 |
| Duka Holdings Ltd | Real estate | 2023 |
| Duka Properties Ltd | Real estate | 2024 |
| Dunke’S Gallery Ltd | Wholesale & retail | 2022 |
| Dunleavy PUB Company Ltd | Hospitality | 2026 |
| Durge Govind IT Services Ltd | Information & communication | 2019 |
| Dust Busters Cleaning & Removals Ltd | Transport & logistics | 2025 |
| DV Lighting Limited | Arts & recreation | 2018 |
| Dvnh Limited | Construction | 2026 |
| DW Maintenance and Exterior Cleaning Ltd | Administrative & support | 2020 |
| Dynamic Hire Management Ltd | Administrative & support | 2011 |
| Dynamics Builder Ltd | Construction | 2024 |
| Dynasty Netball Ltd | Arts & recreation | 2023 |
| E & B Services Ltd | Construction | 2018 |
| E & Karpis Limited | Construction | 2026 |
| E COM Shipping Solutions UK Ltd | Wholesale & retail | 2019 |
| E Holder Carpentry Services Limited | Construction | 2014 |
| E&J Healthcare Limited | Health & social care | 2013 |
| E.T.A Drainage & Plumbing Services Ltd | Construction | 2020 |
| E.T.A Hire Ltd | Administrative & support | 2025 |
| EA Collection Limited | Wholesale & retail | 2025 |
| EA Training Ltd | Arts & recreation | 2021 |
| Eagle Cleaning Ltd | Administrative & support | 2025 |
| Eagle Vision Security Ltd | Administrative & support | 2020 |
| EAM Consultants Ltd | Professional & scientific | 2019 |
| Eamx Limited | Information & communication | 2024 |
| Eastway Cars Ltd | Wholesale & retail | 2019 |
| Easyvend UK Ltd | Wholesale & retail | 2026 |
| Ecatech Fibre Solutions Ltd | Information & communication | 2018 |
| ECD Construction Ltd | Construction | 2021 |
| ECH Echauffeur Ltd | Transport & logistics | 2018 |
| Eclc Enterprises Ltd | Real estate | 2026 |
| Eco Power Tech Ltd. | Wholesale & retail | 2015 |
| Ecogen Bioresource Limited | Wholesale & retail | 2025 |
| Ecoheat Technologies Ltd | Construction | 2011 |
| Ecomzone Store Ltd | Wholesale & retail | 2023 |
| Eddie Mcginty Limited | Water & waste | 2021 |
| Eddy Construction Ltd | Construction | 2020 |
| EDE Hand Car Wash Ltd | Wholesale & retail | 2024 |
| Edefinition Ltd | Information & communication | 2012 |
| Edgecliff Ltd | Information & communication | 2022 |
| Edgliz Ltd | Construction | 2015 |
| Educraft Services Limited | Administrative & support | 2026 |
| Eerie Films Limited | Information & communication | 2025 |
| Egham Construction Limited | Construction | 2026 |