| DMN Transport Ltd | Transport & logistics | 2019 |
| DMP Accountants Limited | Professional & scientific | 2008 |
| DMR Management Services Limited | Professional & scientific | 2021 |
| DMR Property Investments Limited | Real estate | 2005 |
| DMR Services NW Ltd | Construction | 2023 |
| DMS Cctv Control Limited | Administrative & support | 2013 |
| DMS Property Agents Limited | Real estate | 2021 |
| DMT Joinery Limited | Construction | 2016 |
| DMT Properties Ltd | Real estate | 2019 |
| DMT Transport Specialists Ltd | Transport & logistics | 2017 |
| Dmur Group Limited | Real estate | 2021 |
| Dmur Property Group LLP | | 2025 |
| Dmva Limited | Information & communication | 2011 |
| DMW Engineering Services Limited | Professional & scientific | 2024 |
| DN Kitchen Fitting Ltd | Construction | 2011 |
| DN Mechanical Services Ltd | Energy | 2022 |
| DNA Clinics Ltd | Other services | 2011 |
| DNA Construction (Liverpool) Ltd | Construction | 2013 |
| DNA Genetic Testing UK Limited | Health & social care | 2022 |
| DNA Insulation Services Limited | Construction | 2015 |
| DNA Property FM Limited | Real estate | 2020 |
| DNA Residential Ltd | Real estate | 2025 |
| DNA Training Academy Ltd | Education | 2025 |
| Dnaag Truck Ltd | Transport & logistics | 2018 |
| Dnaworks Ltd | Extraterritorial | 2017 |
| DNB Business Solutions Limited | Information & communication | 2006 |
| DND Investment and Consulting Ltd | Financial services | 2024 |
| DND Liverpool Limited | Hospitality | 2024 |
| DND Promotions Limited | Professional & scientific | 2016 |
| DNF Master Ltd | Construction | 2025 |
| DNF Trans Ltd | Transport & logistics | 2016 |
| Dnlsteel Fabrications Limited | Other services | 2017 |
| DNM Health Ltd | Health & social care | 2022 |
| DNR Properties Limited | Real estate | 2013 |
| DNR Property Management Limited | Real estate | 2013 |
| DNV Transport Limited | Transport & logistics | 2015 |
| DNW Engineering Ltd | Professional & scientific | 2020 |
| DO Empire Limited | Wholesale & retail | 2025 |
| DO Group Holdings Ltd | Hospitality | 2023 |
| DO Your Talkin While Your Walking CIC | Education | 2026 |
| DOA Int'L Limited | Wholesale & retail | 2011 |
| DOA Int'L Estates Management Limited | Real estate | 2020 |
| Dobie Clad Ltd | Construction | 2024 |
| Dobie Howard Limited | Real estate | 2020 |
| Dobie Optimum Fitness Limited | Health & social care | 2024 |
| Dobson Welch Limited | Administrative & support | 2014 |
| Doby Concept Limited | Wholesale & retail | 2023 |
| DOC Leisure Ltd | Hospitality | 2018 |
| DOC Travel Ltd | Administrative & support | 2024 |
| Doc-Doc Health Co Ltd | Wholesale & retail | 2025 |
| Dock & Roll Ltd | Extraterritorial | 2009 |
| Dock and Brew Ltd | Hospitality | 2026 |
| Dock Design Ltd | Manufacturing | 2022 |
| Dock Digital Ltd | Information & communication | 2005 |
| Docklands Property Management Limited | Other services | 2017 |
| Docklands Speed Shop Ltd | Information & communication | 2023 |
| Dockside Breakers CIC | Education | 2022 |
| Dockside Consulting Limited | Other services | 2019 |
| Dockside Residential Limited | Real estate | 2025 |
| Dockside Salvage Limited | Water & waste | 2023 |
| Dockwallkiosk Limited | Hospitality | 2026 |
| Doctor Tarek Ltd | Health & social care | 2023 |
| Doctors Cooper Ltd | Health & social care | 2018 |
| Doctors Hours Limited | Professional & scientific | 2016 |
| Doctors of Optimization Limited | Professional & scientific | 2018 |
| Documind Technologies Ltd | Information & communication | 2025 |
| Dodo Fashion Limited | Wholesale & retail | 2018 |
| Does Liverpool CIC | Administrative & support | 2011 |
| Dog and GUN Aughton Ltd | Hospitality | 2024 |
| Dog Co Pet Services Ltd | Other services | 2023 |
| Dog Leads the Formby Dog Walker Ltd | Agriculture & fishing | 2018 |
| Dog N GUN News Ltd | Wholesale & retail | 2020 |
| Dog Walking Field Formby Ltd | Arts & recreation | 2025 |
| Dogene Developments Limited | Real estate | 1997 |
| Dogfish Ventures Limited | Arts & recreation | 2024 |
| Doggy Holidays Ltd | Other services | 2023 |
| Doggy Styles Pet Groomers Ltd | Other services | 2025 |
| Doghouse Day Care & Boarding Ltd | Other services | 2025 |
| Doghouse Pool & Petshop Ltd | Wholesale & retail | 2025 |
| Dogone Limited | Other services | 2017 |
| Dogshow Limited | Arts & recreation | 2023 |
| Dojo Consulting Ltd | Information & communication | 2025 |
| Dolby Hotel Liverpool Limited | Hospitality | 2007 |
| Dolby Hotel Merseyside Limited | Hospitality | 1992 |
| Dolce Maurizio Limited | Manufacturing | 2020 |
| Dolce Trattoria Bar Pizzeria Limited | Other services | 2018 |
| Dole Limited | Wholesale & retail | 2006 |
| Dole UK Limited | Wholesale & retail | 1987 |
| Dolifts FLT Training Ltd | Education | 2021 |
| Dollar Bill Limited | Hospitality | 2025 |
| Dollard Civil & Plant Ltd | Construction | 2022 |
| Dollce Doll Limited | Other services | 2017 |
| Dolly Day Dreams & Little Dudes Ltd | Wholesale & retail | 2021 |
| Dolly Wong Ltd | Professional & scientific | 2019 |
| Dolocal Limited | Information & communication | 2018 |
| Dolphin Removals and Storage Ltd | Transport & logistics | 2000 |
| Dolphin Training Limited | Education | 2014 |
| Dolphin Wood Sales Limited | Manufacturing | 1949 |
| DOM Townsend Ltd | Arts & recreation | 2025 |
| Domain Apparel Ltd | Wholesale & retail | 2025 |