| Doggy Delicious Limited | Wholesale & retail | 2025 |
| Dogsheildsecurityservices.Co.Uk Ltd | Administrative & support | 2025 |
| DOK Construction Ltd | Construction | 2023 |
| Dolce Entity Ltd | Wholesale & retail | 2024 |
| Dolce Vita Proprieta Ltd | Real estate | 2025 |
| Dollface Aesthetics England Limited | Other services | 2022 |
| Dollface by Nicole Ltd | Other services | 2025 |
| Dolls Haus Limited | Other services | 2025 |
| Dolphin (MK) Limited | Hospitality | 2012 |
| Dolphin Fisheries Ltd | Hospitality | 2022 |
| Domal Properties Ltd | Real estate | 2013 |
| Dombuildings Ltd | Construction | 2018 |
| Domestic Energy Grants Ltd | Professional & scientific | 2023 |
| Domestic Seven Properties Limited | Real estate | 2020 |
| Domiciliary Care Providers Ltd | Health & social care | 2025 |
| Dominikevry Ltd | Transport & logistics | 2025 |
| Domiscan Ltd | Information & communication | 2025 |
| Dompaix Services Ltd | Other services | 2021 |
| Domus Design Limited | Professional & scientific | 2010 |
| Domus Developing Limited | Construction | 2007 |
| Domus Land Limited | Real estate | 2017 |
| Domus Lettings Limited | Real estate | 2018 |
| Domus Project Management Limited | Professional & scientific | 2015 |
| Domus Residential Solutions Limited | Real estate | 2011 |
| Domus Serviced Apartments Limited | Administrative & support | 2017 |
| DON & DAB Ltd | Hospitality | 2023 |
| DON Marco Food Company Limited | Hospitality | 2011 |
| Don'T MOO My Oink!! Ltd | Hospitality | 2025 |
| Doncaster Blissful Delights Limited | Hospitality | 2024 |
| Doncaster Cleaning Limited | Administrative & support | 2024 |
| Done Right Events Ltd | Arts & recreation | 2021 |
| Donec Construct Ltd | Construction | 2025 |
| Donkin International Limited | Transport & logistics | 2019 |
| Donkins Transport Services Limited | Transport & logistics | 2016 |
| Donlynx Cattery Limited | Agriculture & fishing | 2021 |
| Donn Beds UK Ltd | Wholesale & retail | 2022 |
| Donny Haulage Ltd | Transport & logistics | 2022 |
| Door & Window Service Limited | Construction | 2007 |
| Door Drop Groceries Limited | Hospitality | 2026 |
| Door to Floor Flooring Ltd | Wholesale & retail | 2025 |
| DOOR2DOORRAGS Ltd | Water & waste | 2020 |
| Doors Shutters & Gates Ltd | Professional & scientific | 2021 |
| Doors to YOU Limited | Wholesale & retail | 2017 |
| Doorsopenuk Limited | Information & communication | 2023 |
| Dori's Trans Ltd | Transport & logistics | 2025 |
| Dorism Ltd | Health & social care | 2022 |
| DOS Consultants Limited | Manufacturing | 2007 |
| Doti Empire Ltd | Health & social care | 2024 |
| Double a Display Ltd | Administrative & support | 2025 |
| Double GEE Limited | Transport & logistics | 2021 |
| Double R Investments Ltd | Wholesale & retail | 2026 |
| Double River Properties Ltd | Real estate | 2023 |
| Double TAP Social Media Marketing Ltd | Professional & scientific | 2025 |
| Dough & Crumb Ltd | Manufacturing | 2026 |
| Douglas Motor Spares Limited | Wholesale & retail | 2017 |
| Dougsters Logistics Ltd | Transport & logistics | 2025 |
| Dove Developments Holdings Limited | Real estate | 2022 |
| Dove Developments Yorkshire Ltd | Construction | 2016 |
| Dove Healthcare Solutions Limited | Health & social care | 2025 |
| Dove Leisure Yorkshire Limited | Hospitality | 2026 |
| Dovecott Holdings Ltd | Real estate | 2022 |
| Dovesdale Management Ltd | Households | 2025 |
| Dovey Delight Limited | Manufacturing | 2026 |
| Downham Textiles Limited | Wholesale & retail | 1996 |
| Downing Property Investments Ltd | Real estate | 2020 |
| Download Holdings Ltd | Wholesale & retail | 2023 |
| DP Safety Solutions Ltd | Professional & scientific | 2026 |
| DP Sandwich Bar Ltd | Hospitality | 2026 |
| DP Sourced Ltd | Administrative & support | 2025 |
| DP Strategies Ltd | Real estate | 2025 |
| DP Telcom Ltd | Information & communication | 2009 |
| DP Tiling Limited | Construction | 2026 |
| DPB Inns Limited | Hospitality | 2017 |
| DPC Paving & Landscapes Limited | Construction | 2019 |
| DPF Solutions Yorkshire Ltd | Wholesale & retail | 2019 |
| Dpkp Ltd | Transport & logistics | 2024 |
| DPR Joinery Ltd | Construction | 2010 |
| DR Adnan Mahmood Ltd | Health & social care | 2019 |
| DR AK Company Ltd | Health & social care | 2025 |
| DR ALI Aesthetics Limited | Health & social care | 2025 |
| DR Alisah Academy Limited | Education | 2022 |
| DR Aneeqa Khan Limited | Health & social care | 2024 |
| DR Asghar Ltd | Health & social care | 2018 |
| DR Cars (UK) Ltd | Wholesale & retail | 2014 |
| DR Clean Car Wash Ltd | Administrative & support | 2024 |
| DR ET Health Solutions Ltd | Health & social care | 2022 |
| DR GAS (BFD) Ltd | Construction | 2023 |
| DR Hamza Mujtaba Limited | Information & communication | 2022 |
| DR Plumbing (BFD) Ltd | Construction | 2025 |
| DR Prestige Specialist Cars Ltd | Wholesale & retail | 2023 |
| DR S Sultan Ltd | Health & social care | 2015 |
| DR Saira Asghar Ltd | Health & social care | 2025 |
| DR SB Medics Limited | Health & social care | 2022 |
| DR Stewart Mitchell (Eyecare) LLP | | 2002 |
| DR Walimohamed Ltd | Health & social care | 2024 |
| DR Woodland Wellbeing CIC | Other services | 2023 |
| DR Zout Limited | Wholesale & retail | 2019 |
| DR. Support Limited | Administrative & support | 2011 |
| Draft Cinema Ltd | Information & communication | 2026 |
| Dragani Ltd | Construction | 2025 |