| D2BRAIMOH Limited | Other services | 2016 |
| D2D Ltd | Wholesale & retail | 2025 |
| D2K Technologies Limited | Information & communication | 2025 |
| D365 Services Ltd | Information & communication | 2021 |
| D365 Solutions Ltd | Information & communication | 2021 |
| D5 Residential Property Ltd | Real estate | 2025 |
| DA Environmental Ltd | Construction | 2025 |
| DA Unsigned Academy Ltd | Administrative & support | 2021 |
| DA1 Pro Ltd | Real estate | 2023 |
| DA2 Limited | Hospitality | 2025 |
| DAA Trading Limited | Wholesale & retail | 2025 |
| Dabofeto Ltd | Professional & scientific | 2014 |
| Dacys Building Services Limited | Construction | 2005 |
| Dadas Global Ltd | Real estate | 2024 |
| Dafidi Limited | Public administration | 2012 |
| Dahsoftworks Ltd. | Information & communication | 2012 |
| Daifugo Group Ltd | Hospitality | 2025 |
| Daily Grind Coffee & Events Ltd | Hospitality | 2026 |
| Dais X Ltd | Information & communication | 2020 |
| Daisy Property Limited | Real estate | 2002 |
| Daivique Ltd | Wholesale & retail | 2025 |
| DAJ International Ltd | Hospitality | 2019 |
| Dalefield Way (Gravesend) Management Company Limited | Households | 2016 |
| Daley Office Supplies Limited | Wholesale & retail | 2024 |
| Dalgety Corporation UK Ltd | Manufacturing | 2013 |
| Daljo Developments Ltd | Construction | 2016 |
| Dalley Consultants Ltd | Professional & scientific | 2022 |
| Dalley Properties Limited | Real estate | 2022 |
| Dalmore Roofing Ltd | Construction | 2023 |
| Dalo Consulting Ltd | Information & communication | 2015 |
| Dalton Park Homes Limited | Real estate | 2023 |
| Dames Martin Limited | Information & communication | 2005 |
| Dami and Tami Consults Ltd | Financial services | 2015 |
| Damili Limited | Real estate | 2024 |
| DAN Byrne Golf Ltd | Wholesale & retail | 2026 |
| DAN Claudiu-Dorian 0687 Limited | Transport & logistics | 2015 |
| DAN Logistics Ltd | Transport & logistics | 2018 |
| Danaya-Sun Ltd | Transport & logistics | 2019 |
| Danco Group Ltd | Wholesale & retail | 2026 |
| Dandelion Properties Ltd | Real estate | 2018 |
| Dandelion Retail Ltd | Wholesale & retail | 2023 |
| Daniel & David Holdings Ltd | Wholesale & retail | 2019 |
| Daniel Forni Ltd | Professional & scientific | 2021 |
| Daniel Tammadge Ltd | Information & communication | 2023 |
| Danielfixing Limited | Construction | 2021 |
| Danson Sports Limited | Arts & recreation | 2012 |
| Dany Lucas Ltd | Transport & logistics | 2019 |
| DAO Services Limited | Professional & scientific | 2016 |
| Dapest Incorporation Limited | Hospitality | 2018 |
| Daphne Edwin Enterprises Ltd | Other services | 2020 |
| Daqi Equipment Supporting UK Ltd | Manufacturing | 2019 |
| Daramond Ltd | Information & communication | 2018 |
| Darasimi Creative Collective Ltd | Information & communication | 2026 |
| Darasimi Ltd | Wholesale & retail | 2024 |
| Darazi Ltd | Wholesale & retail | 2026 |
| Darcy Court (Maidstone) Road Management Company Limited | Households | 2013 |
| Darent Valley Leisure Limited | Wholesale & retail | 2013 |
| Darenth Alli Ltd | Manufacturing | 2025 |
| Darenth Developments Limited | Construction | 2003 |
| Darenth Group of Anaesthetists LLP | | 2010 |
| Darenth Housing & Property Limited | Construction | 2022 |
| Darenth Valley Building Services Limited | Construction | 2000 |
| Darenth Valley Forge Ltd | Manufacturing | 2017 |
| Darlo Consultance Limited | Administrative & support | 2011 |
| Darmac Tower Limited | Real estate | 2023 |
| Darnley DS Limited | Real estate | 2024 |
| Darren Laws Ltd | Construction | 2020 |
| Darsems Limited | Professional & scientific | 2019 |
| Dart Angels Ltd | Transport & logistics | 2020 |
| Dart Security Services & FM Ltd | Administrative & support | 2022 |
| Dartford Arts Centre | Administrative & support | 2000 |
| Dartford Barbers Limited | Other services | 2025 |
| Dartford Bazar Ltd | Wholesale & retail | 2025 |
| Dartford Bespoke Windows Ltd. | Administrative & support | 2019 |
| Dartford Car and 4X4 Centre Limited | Wholesale & retail | 2010 |
| Dartford Community Care Limited | Health & social care | 2022 |
| Dartford Credit Services Ltd | Professional & scientific | 2011 |
| Dartford Education Ltd | Education | 2016 |
| Dartford Efes Limited | Hospitality | 2019 |
| Dartford Estates (Dartford) Ltd | Real estate | 2023 |
| Dartford F.C. (1992) Limited | Arts & recreation | 1992 |
| Dartford Florist Ltd | Wholesale & retail | 2014 |
| Dartford Food & Wine Limited | Wholesale & retail | 2018 |
| Dartford Football Club Community Programme CIC | Education | 2018 |
| Dartford Football Club Youth Development Centre C.I.C. | Arts & recreation | 2012 |
| Dartford Glazing Repairs Limited | Construction | 2024 |
| Dartford Golf Club Limited | Arts & recreation | 1930 |
| Dartford Grammar School | Education | 2010 |
| Dartford GUN Club Limited | Education | 2019 |
| Dartford Health and Sports Club | Arts & recreation | 2022 |
| Dartford Hindu Mandir Ltd | Other services | 2021 |
| Dartford Indian Association UK | Education | 2025 |
| Dartford Laundry Ltd | Other services | 2023 |
| Dartford Legal Services Limited | Professional & scientific | 2009 |
| Dartford Magistrate Consortium Ltd | Real estate | 2019 |
| Dartford Motor Works Limited | Wholesale & retail | 2010 |
| Dartford Nails & Spa Limited | Other services | 2023 |
| Dartford Nepalese Community | Health & social care | 2011 |
| Dartford Panel & Paint (Kent) Ltd | Wholesale & retail | 2018 |
| Dartford Pharmacy Limited | Wholesale & retail | 2002 |