| Deltaecho Care Ltd | Health & social care | 2023 |
| Deltaplus 3 Limited | Professional & scientific | 2004 |
| Deltapoll Limited | Professional & scientific | 2017 |
| Deltic Communications Limited | Information & communication | 2014 |
| Deltico Ltd | Professional & scientific | 2019 |
| Deltom Construction Limited | Real estate | 2026 |
| Delux Exclusive Events Ltd | Hospitality | 2022 |
| Deluxe Barbers WB Ltd | Other services | 2025 |
| Deluxe Cleans Nottingham Limited | Administrative & support | 2025 |
| Deluxe Living Homes Ltd | Real estate | 2024 |
| Deluxico Ltd | Wholesale & retail | 2020 |
| Delycrafter Limited | Information & communication | 2025 |
| Delyv Barbers Notts Ltd | Other services | 2025 |
| Delzino Ltd | Construction | 2023 |
| Dembar Estates Limited | Hospitality | 2006 |
| Demeler Limited | Professional & scientific | 2019 |
| Demetercare Group Limited | Public administration | 2021 |
| Demetriou Trading Limited | Hospitality | 2024 |
| Demi Couture Ltd | Other services | 2022 |
| Demi Electrics Ltd | Construction | 2025 |
| Demiedohertybeauty Ltd | Other services | 2025 |
| Demirler Property Ltd | Real estate | 2024 |
| Demon Car Detailing Ltd | Wholesale & retail | 2026 |
| Demon Sprays Ltd | Construction | 2021 |
| Demstems Studios Limited | Information & communication | 2020 |
| Denay Limited | Real estate | 2022 |
| Denbridge Care Limited | Health & social care | 2016 |
| Denby Joinery Ltd | Construction | 2026 |
| Denbybnkvintage Ltd | Wholesale & retail | 2025 |
| Dene Anderson Ltd | Wholesale & retail | 2025 |
| Denell Limited | Construction | 2007 |
| Deneng Ltd | Professional & scientific | 2015 |
| Dengad Ltd | Hospitality | 2025 |
| Denham Court Limited | Real estate | 2007 |
| Denim REY Limited | Wholesale & retail | 2019 |
| Denis & Silviu Ltd | Transport & logistics | 2024 |
| Denis Pizza and Kebab House Ltd | Hospitality | 2024 |
| Denis's Barbershop Sherwood Ltd | Other services | 2025 |
| Denisa & ADY Ltd | Administrative & support | 2025 |
| Denisa Market Ltd | Wholesale & retail | 2021 |
| Deniz Barber Services Ltd | Other services | 2023 |
| Deniz Cars Ltd | Wholesale & retail | 2026 |
| Denman Developments Limited | Real estate | 2000 |
| Denman Market Express Ltd | Wholesale & retail | 2025 |
| Denman Mini Market Ltd | Wholesale & retail | 2024 |
| Denneny Properties Limited | Real estate | 2020 |
| Dennis Electrical Ltd | Construction | 2019 |
| Dennis Langan Building Services Limited | Administrative & support | 2010 |
| Dennis Legacy Properties Ltd | Real estate | 2025 |
| Denots Interior Walling & Finishing Limited | Construction | 2000 |
| Denso Logistics Ltd | Transport & logistics | 2020 |
| Denson Homes Ltd | Real estate | 2020 |
| Dent Chrome Ltd | Wholesale & retail | 2025 |
| Dent Construction Ltd | Construction | 2013 |
| Dent Monkey 1 Ltd | Wholesale & retail | 2025 |
| Dent Natural Smile Ltd | Health & social care | 2022 |
| Dent Perfected Limited | Wholesale & retail | 2010 |
| Dent Perfection Holdings Limited | Financial services | 2025 |
| Dent Perfection Limited | Wholesale & retail | 2004 |
| Dent Perfectionist Limited | Wholesale & retail | 2010 |
| Dent Professionals Limited | Wholesale & retail | 2010 |
| DENT-M8 Ltd | Wholesale & retail | 2026 |
| Dental Art Studio Limited | Health & social care | 2024 |
| Dental Laboratories Association Limited(The) | Other services | 1961 |
| Dental Solutions Laboratories Limited | Health & social care | 2007 |
| Dentcare 1 Smile Limited | Administrative & support | 2001 |
| Dentflow PDR Ltd | Wholesale & retail | 2026 |
| Dentinogenesis Limited | Health & social care | 2025 |
| Dentist 111 Limited | Administrative & support | 2024 |
| Dentists in UK Recruitment Ltd | Administrative & support | 2022 |
| Denton Technology Ltd | Information & communication | 2022 |
| Dents Properties Ltd | Real estate | 2022 |
| Dentspa Dental Health Limited | Health & social care | 2010 |
| Dentsys Limited | Information & communication | 1991 |
| Dentures Direct Ltd | Health & social care | 2004 |
| Dentures First Ltd | Health & social care | 2026 |
| Denver Homes Limited | Real estate | 2008 |
| Denzil Roylance Limited | Health & social care | 2018 |
| DEO Retail Ltd | Wholesale & retail | 2024 |
| Dependable Together Group Ltd | Administrative & support | 2026 |
| DEPT:42 Limited | Professional & scientific | 2020 |
| Derbar Limited | Professional & scientific | 2025 |
| Derby BED Centre Limited | Wholesale & retail | 2001 |
| Derby Building Plastics Limited | Administrative & support | 2011 |
| Derby Business Finance Limited | Extraterritorial | 2013 |
| Derby Carpets Ltd | Wholesale & retail | 2019 |
| Derby Catering Engineers Ltd | Manufacturing | 2017 |
| Derby Ceilings and Interiors Ltd | Extraterritorial | 2025 |
| Derby Chauffeurs Limited | Transport & logistics | 2008 |
| Derby City Dental Care Limited | Health & social care | 2022 |
| Derby City Stunts Ltd | Arts & recreation | 2025 |
| Derby Cloth House Limited | Wholesale & retail | 2017 |
| Derby Flexographic Printers Limited | Manufacturing | 1989 |
| Derby Gynae Training Centre Ltd | Education | 2018 |
| Derby Kitchens Limited | Wholesale & retail | 2022 |
| Derby Knee and Sports Surgery Ltd | Health & social care | 2010 |
| Derby Light Haulage Ltd | Transport & logistics | 2018 |
| Derby Plastics Limited | Manufacturing | 2004 |
| Derby Polythene Limited | Manufacturing | 1981 |
| Derby Process Servers Ltd | Administrative & support | 2019 |