| DH Electrical (Midlands) Limited | Construction | 2008 |
| DH Group Furniture Ltd | Manufacturing | 2020 |
| DH Homes & Properties Ltd | Real estate | 2022 |
| DH Project Services Limited | Professional & scientific | 2025 |
| DH Properties Partnership LLP | | 2017 |
| DH Records Ltd | Arts & recreation | 2011 |
| DH Solutions (Midlands) Ltd | Administrative & support | 2025 |
| DH Wealth Management Limited | Financial services | 2012 |
| DH Wholesale Services Ltd | Wholesale & retail | 2023 |
| Dhadda and Associates Ltd | Other services | 2023 |
| Dhadhan Ltd | Hospitality | 2025 |
| Dhadkan Limited | Wholesale & retail | 2013 |
| Dhalings Ltd | Hospitality | 2020 |
| Dhaliwal Construction (Bham) Ltd | Construction | 2026 |
| Dhaliwal Construction (WM) Ltd | Construction | 2026 |
| Dhaliwal Construction Limited | Construction | 2005 |
| Dhaliwal Recycling Ltd | Administrative & support | 2017 |
| Dhaliwal Shopfront and Double Glazings Ltd | Construction | 2022 |
| Dhaliya Ltd | Wholesale & retail | 2026 |
| Dhamac Construction Ltd | Construction | 2019 |
| Dhami Investment Properties Ltd | Real estate | 2025 |
| Dhami Logistics Ltd | Transport & logistics | 2023 |
| Dhami LRC Limited | Real estate | 2026 |
| Dhana London Limited | Wholesale & retail | 2020 |
| Dhanak Bridal Ltd | Wholesale & retail | 2026 |
| Dhanda Holdings Ltd | Financial services | 2026 |
| Dhanjal Consult Ltd | Professional & scientific | 2025 |
| Dhanjal Group Ltd | Financial services | 2025 |
| Dhanuma Limited | Information & communication | 2019 |
| Dhanvantri Innovations Limited | Professional & scientific | 2020 |
| Dhanvantri Optical Tubes Ltd | Professional & scientific | 2021 |
| Dhar Limited | Health & social care | 2010 |
| Dhar Properties Ltd | Real estate | 2017 |
| Dharnasons Jewellers Limited | Wholesale & retail | 2022 |
| Dhasair Ltd | Transport & logistics | 2021 |
| Dhba Limited | Professional & scientific | 2004 |
| Dhchealth Limited | Professional & scientific | 2016 |
| Dhcm Limited | Manufacturing | 2019 |
| Dheez Ltd | Arts & recreation | 2015 |
| Dhesi & Sangha Ltd | Hospitality | 2019 |
| Dhesi Acquisitions Limited | Real estate | 2024 |
| Dhesi Dynamics Limited | Real estate | 2024 |
| Dhesi Imaging Ltd | Health & social care | 2018 |
| Dhesi Properties Management Limited | Real estate | 2012 |
| Dhesi Sweet Centre Limited | Manufacturing | 2003 |
| Dhiafa Ltd | Hospitality | 2024 |
| Dhilan Logistic Limited | Transport & logistics | 2018 |
| Dhillon Adventures Limited | Real estate | 2024 |
| Dhillon Farm Birmingham Limited | Wholesale & retail | 2014 |
| Dhillon Investments Limited | Real estate | 2012 |
| Dhillon Midlands Limited | Hospitality | 2025 |
| Dhillon Midlands Solutions Limited | Transport & logistics | 2025 |
| Dhillonaires Limited | Real estate | 2018 |
| DHILLONAUTOTECH21982 Ltd | Wholesale & retail | 2025 |
| Dhillons Properties Limited | Real estate | 2006 |
| Dhimaan Builders Ltd | Construction | 2021 |
| Dhimeiar Ltd | Administrative & support | 2021 |
| Dhinjan Kitchen & Bedrooms Ltd | Construction | 2025 |
| Dhirani Exports Ltd | Wholesale & retail | 2016 |
| Dhiya Media UK Ltd | Information & communication | 2018 |
| DHJ UK Services Ltd | Administrative & support | 2025 |
| DHL Global Trading (UK) Ltd | Wholesale & retail | 2020 |
| DHL Trade Fairs and Events (UK) Limited | Administrative & support | 1997 |
| Dhody's Ltd | Health & social care | 2012 |
| Dhoke Baba Faiz Bakhsh DC Ltd | Other services | 2021 |
| Dhokia Ltd | Professional & scientific | 2024 |
| Dhot Transport Ltd | Transport & logistics | 2025 |
| DHP Investments ( UK ) Ltd | Real estate | 2018 |
| DHR Ltd | Construction | 2023 |
| Dhruhi Limited | Wholesale & retail | 2025 |
| Dhruvin Star Limited | Information & communication | 2016 |
| Dhudi Ltd | Wholesale & retail | 2024 |
| Dhulah House Ltd | Wholesale & retail | 2024 |
| DHX Capital Ltd | Real estate | 2026 |
| Dhyana Limited | Real estate | 2010 |
| DI Gian's (Midlands) Ltd | Transport & logistics | 2023 |
| DI Locums Ltd | Wholesale & retail | 2023 |
| DI Midlands Limited | Hospitality | 2024 |
| DI Strategic Solutions Ltd | Administrative & support | 2010 |
| DI Vapor Holdings Limited | Financial services | 2023 |
| DI Vapor Limited | Wholesale & retail | 2006 |
| Di's Diner Ltd | Hospitality | 2025 |
| DIA Dental Limited | Health & social care | 2015 |
| Diabetes Safety Organisation Limited | Health & social care | 2011 |
| Diadem Corporate World (UK) Ltd | Construction | 2023 |
| Diagnosis Plus Ltd | Health & social care | 2025 |
| Diagnostic Waves Ltd | Health & social care | 2021 |
| Diagonus Limited | Administrative & support | 2007 |
| Diah's Candle Cafe Ltd | Manufacturing | 2024 |
| Diak Ltd | Wholesale & retail | 2020 |
| Diako Construction Ltd | Construction | 2024 |
| Diakonia Ltd | Hospitality | 2025 |
| Dial 4 M J Evans and SON Limited | Construction | 2015 |
| Dial a Builder Ltd | Construction | 2018 |
| Dial a Curry Haverfordwest Frozen Foods Ltd | Hospitality | 2025 |
| Dialace Limited | | 1991 |
| Dialbuy Direct Limited | Wholesale & retail | 2004 |
| Dialect Interpreters Ltd | Professional & scientific | 2026 |
| Dialogicai Ltd | Information & communication | 2026 |
| Dialogue Tree Theatre Ltd | Arts & recreation | 2018 |