| Dales Scaffolding Ltd | Construction | 2018 |
| Dalesclipse Limited | Wholesale & retail | 2025 |
| Daletech Group Holdings Limited | Financial services | 2024 |
| Daletech Limited | Construction | 1989 |
| Dalili Enterprises Ltd | Real estate | 2024 |
| Damabosh Integrated Limited | Real estate | 2024 |
| Dambron Properties Limited | Real estate | 2025 |
| Damo Ltd | Wholesale & retail | 2025 |
| Dams Rail & Construction Training Services Limited | Education | 2019 |
| Danchi UK Investment Ltd | Real estate | 2023 |
| Danest Solutions Ltd | Administrative & support | 2014 |
| Danflowill Limited | Health & social care | 2018 |
| Dangz Limited | Real estate | 2020 |
| Daniel Associates Ltd | Construction | 2019 |
| Daniel Engineering Ltd | Construction | 2022 |
| Daniel-Lawrence Ltd | Health & social care | 2013 |
| Danielle Goldsmith Estate Agent Ltd | Real estate | 2025 |
| Daniels Accounts LLP | | 2011 |
| Dankevsam Ltd | Transport & logistics | 2025 |
| Dannif Limited | Wholesale & retail | 2011 |
| Danscom Limited | Wholesale & retail | 2019 |
| Dantrac UK Ltd | Real estate | 2026 |
| Danwell Bridge Limited | Financial services | 2025 |
| DAO Property Investment Ltd | Real estate | 2021 |
| Dapper Booths Limited | Arts & recreation | 2016 |
| DAR Tran-Z Ltd | Transport & logistics | 2016 |
| Dargate Haulage Ltd | Transport & logistics | 2015 |
| Dargis Construction Ltd | Manufacturing | 2024 |
| Dariz Limited | Wholesale & retail | 2020 |
| Darkwood Racing Ltd | Wholesale & retail | 2023 |
| Darland Farm Estate Limited | Real estate | 2009 |
| Darren ROY Hills Limited | Extraterritorial | 2024 |
| Darren Welch Limited | Construction | 2026 |
| Darsie Property Solutions Ltd | Real estate | 2024 |
| Darsim Ltd | Other services | 2019 |
| Darted Living Ltd | Real estate | 2026 |
| Dartford Food Ltd | Hospitality | 2020 |
| Dartford Heights Limited | Education | 2014 |
| Darul-Ilm Chatham Ltd | Education | 2020 |
| Darul-Ilm Kent Ltd | Education | 2025 |
| Darul-Ilm Medway Ltd | Education | 2024 |
| DAS Cleaning Services Limited | Administrative & support | 2013 |
| Dason Ltd | Real estate | 2019 |
| DAT5 Global Ltd | Information & communication | 2025 |
| Datacon Holdings Ltd | Financial services | 2025 |
| Datacon Project Services Ltd | Professional & scientific | 2015 |
| Datacontext (UK) Ltd | Information & communication | 2010 |
| Dataopinions Limited | Professional & scientific | 2024 |
| Dataspread Resources Limited | Professional & scientific | 2008 |
| Datoor Limited | Wholesale & retail | 2015 |
| Datu Health Care Ltd | Health & social care | 2019 |
| Davenport Salons Ltd | Other services | 2013 |
| David DFC Ltd | Transport & logistics | 2021 |
| David J P Jarman Limited | Professional & scientific | 2015 |
| David P Entertainer Ltd | Arts & recreation | 2024 |
| David Paul Limited | Extraterritorial | 2022 |
| David's Camp Limited | Health & social care | 2023 |
| Daviesbailey Limited | Construction | 2020 |
| Davis Estate Fish Bar Limited | Hospitality | 2023 |
| Davis Estate Food Ltd | Hospitality | 2025 |
| Davis Grill Limited | Hospitality | 2024 |
| Davolad Portfolios Ltd | Real estate | 2025 |
| Davstef Limited | Transport & logistics | 2018 |
| Davy Holdings Ltd | Financial services | 2022 |
| Dawat Spice Ltd | Hospitality | 2020 |
| Dawnwood Media Ltd | Other services | 2006 |
| Dayettie UK Limited | Transport & logistics | 2017 |
| Daysh Properties Limited | Real estate | 2023 |
| Daytona Domestic Installation Ltd | Construction | 2020 |
| Dazizach Ltd | Health & social care | 2016 |
| DBF Holdings Limited | Other services | 2016 |
| DBM Plumbing Solutions Limited | Construction | 2018 |
| DC Property Management Ltd | Real estate | 2026 |
| DC Redline Ltd | Construction | 2023 |
| DCF Global Limited | Professional & scientific | 2024 |
| Dcsi Holdings Limited | Construction | 2007 |
| DDF Civil Engineering Limited | Construction | 2025 |
| DDG Logistic Ltd | Transport & logistics | 2021 |
| Ddick Medical Limited | Professional & scientific | 2022 |
| DDL Plumbing & Heating Ltd | Construction | 2024 |
| DDS Commercials Ltd | Wholesale & retail | 2021 |
| DE Homes Kent Ltd | Real estate | 2024 |
| DE Honourables Limited | Hospitality | 2025 |
| DE Plus Ltd | Financial services | 2017 |
| Deacons Holdings Ltd | Real estate | 2021 |
| Dead Swanky Limited | Other services | 2001 |
| Deadline Security Limited | Administrative & support | 2014 |
| Deadline Training Academy Ltd | Education | 2025 |
| Deaf Cat Coffee (Maidstone) Ltd | Wholesale & retail | 2024 |
| Deaf Cat Coffee Limited | Wholesale & retail | 2017 |
| Deagal FC Ltd | Arts & recreation | 2024 |
| Deal Delivery Ltd | Transport & logistics | 2020 |
| Deal Source Limited | Administrative & support | 2025 |
| Dealsell Ltd | Wholesale & retail | 2022 |
| Debbie Foods Ltd | Hospitality | 2022 |
| Debims Management Limited | Health & social care | 2019 |
| Deblemish Ltd | Wholesale & retail | 2023 |
| Debrach Ltd | Other services | 2023 |
| Debskay Ltd | Hospitality | 2020 |
| Debuch Holdings Limited | Real estate | 2019 |