| Dcas Holdings Ltd | Real estate | 2020 |
| Dccy Ltd | Wholesale & retail | 2026 |
| DCF Trans Ltd | Transport & logistics | 2020 |
| DCL Business Solutions Limited | Information & communication | 2009 |
| DCLESTA1 Limited | Hospitality | 2025 |
| DCM Group Holdings Limited | Administrative & support | 2020 |
| DCP Project Ltd | Wholesale & retail | 2024 |
| Dcplyn Limited | Wholesale & retail | 2024 |
| DCR Bars Ltd | Hospitality | 2026 |
| Dcrb Properties Limited | Real estate | 2023 |
| DCS Carpets Limited | Wholesale & retail | 2012 |
| DCS Flooring Limited | Construction | 2010 |
| DCS Technical Ltd | Professional & scientific | 2026 |
| DCT Brickwork Ltd | Construction | 2019 |
| DD Desserts Leics Limited | Hospitality | 2023 |
| DD Energy&Haulage Ltd | Manufacturing | 2017 |
| DD Estates Ltd | Real estate | 2019 |
| DD Grocery Limited | Wholesale & retail | 2026 |
| DD Medical Limited | Health & social care | 2020 |
| DD Taxi Leicester Ltd | Transport & logistics | 2019 |
| Dddr Capital Ltd | Financial services | 2018 |
| Ddet Property Holdings Limited | Real estate | 2021 |
| Ddha Investments Ltd | Wholesale & retail | 2025 |
| DDK Trans Ltd | Transport & logistics | 2018 |
| DDN Mangia Ltd | Administrative & support | 2001 |
| Ddng Investments Ltd | Real estate | 2017 |
| DDP Medical UK Ltd | Health & social care | 2025 |
| Ddts Foods Limited | Wholesale & retail | 2019 |
| Ddwe Limited | Construction | 2025 |
| DE Celebrant Limited | Manufacturing | 2025 |
| DE Faye Developments Ltd | Real estate | 2019 |
| DE Great Future Ltd | Health & social care | 2023 |
| DE Joy Care Services Limited | Health & social care | 2020 |
| DE LUX Investment Properties Ltd | Households | 2020 |
| DE Merke Estates | Administrative & support | 2008 |
| DE Montfort Advisory Ltd | Professional & scientific | 2016 |
| DE Montfort Court Management (Leicester) Limited | Real estate | 1979 |
| DE Montfort Developments Ltd | Real estate | 2012 |
| DE Montfort Estates Limited | Extraterritorial | 1985 |
| DE Montfort Expertise Limited | Professional & scientific | 1989 |
| DE Montfort Group Ltd | Financial services | 2016 |
| DE Montfort Investments Ltd | Financial services | 2016 |
| DE Montfort Properties Ltd | Real estate | 2016 |
| DE Montfort Services Ltd | Administrative & support | 2024 |
| DE Montfort Taxi Ltd | Transport & logistics | 2022 |
| DE Montfort Tool Company Limited | Other services | 1973 |
| DE Montfort University Students' Union | Education | 2008 |
| DE Winter Consolidated Limited | Real estate | 2016 |
| De'Mandalia Holdings Limited | Real estate | 2021 |
| De-Hoc Ltd | Wholesale & retail | 2024 |
| De-Lux Clean & Hygiene Limited | Administrative & support | 2024 |
| De-Ville Accommodation Limited | Real estate | 1998 |
| DE74 Properties Limited | Real estate | 2022 |
| Deacon & Co Developers Limited | Construction | 2025 |
| Deacon & Sons Builders Limited | Construction | 2018 |
| Deacon Car Park Limited | Transport & logistics | 2014 |
| Deacon Real Estate Ltd | Real estate | 2024 |
| Deacon Students Limited | Real estate | 2018 |
| Deacons Martial Arts Oadby Ltd | Arts & recreation | 2024 |
| Deacons' Academy LLP | | 2020 |
| Deacs Limited | Arts & recreation | 2005 |
| Dead Buni Limited | Arts & recreation | 2018 |
| Dead Star Design Ltd | Wholesale & retail | 2022 |
| Deadline Studios Limited | Information & communication | 2001 |
| Deadly Customs Ltd | Manufacturing | 2020 |
| Deadrealm Games Ltd | Wholesale & retail | 2026 |
| Deal Broker Ltd | Wholesale & retail | 2021 |
| Deal Orbit Ltd | Wholesale & retail | 2026 |
| Dealdubs Ltd | Wholesale & retail | 2020 |
| Dealership Dispatch Ltd | Wholesale & retail | 2025 |
| Dean Blankley Properties Ltd | Real estate | 2023 |
| Dean Dental Ltd | Health & social care | 2024 |
| Dean Rice Bike Services Ltd | Wholesale & retail | 2026 |
| Dearly Care Services Ltd | Households | 2025 |
| Dearth Retails Limited | Wholesale & retail | 2023 |
| Debar Global Logistics Ltd | Transport & logistics | 2024 |
| Debar Investments ( U K ) Ltd | Real estate | 2012 |
| Debbie Claire Limited | Arts & recreation | 2014 |
| Debden Logistics Ltd | Transport & logistics | 2014 |
| Debiba Ltd | Administrative & support | 2016 |
| Debrahadu Limited | Health & social care | 2017 |
| Debright Trading Limited | Wholesale & retail | 2008 |
| Debrun Design Limited | Professional & scientific | 2024 |
| Debucha Ltd | Transport & logistics | 2021 |
| Deburger Co Limited | Hospitality | 2025 |
| DEC Consulting Ltd | Professional & scientific | 2021 |
| Deca Heritage Ltd | Real estate | 2025 |
| Decadent Catering Limited | Hospitality | 2008 |
| Decameron Software Limited | Information & communication | 2000 |
| Deccatech Limited | Information & communication | 2011 |
| Decennial Ltd | Other services | 2018 |
| Decent Price Limited | Wholesale & retail | 2023 |
| Decentered Media Ltd | Information & communication | 2019 |
| Decipher Graphic Designs Limited | Information & communication | 2012 |
| Decision Consulting Ltd | Education | 2024 |
| Decision Science Limited | Professional & scientific | 2016 |
| Deckexchange Limited | Wholesale & retail | 2025 |
| Declan Kiely Wealth Management Ltd | Financial services | 2022 |
| Decol (Leicester) Ltd | Construction | 2010 |
| Decor (1988) Limited | Wholesale & retail | 1988 |