| Devington Limited | Professional & scientific | 2017 |
| Devon 11 Limited | Manufacturing | 2011 |
| DG Taverns Ltd | Hospitality | 2013 |
| Dhesi Assets Ltd | Real estate | 2024 |
| Dhesi Pubs Ltd | Hospitality | 2022 |
| DHJ Limited | Administrative & support | 2000 |
| Dhrp Limited | Professional & scientific | 2024 |
| Di:Ga Strategy and Communications Limited | Professional & scientific | 2012 |
| Di:Ga Trustees Limited | Administrative & support | 2023 |
| Diagrid Limited | Construction | 2023 |
| Dial Square Limited | Professional & scientific | 2016 |
| Diamond Printed Products Limited | Manufacturing | 2006 |
| Dibley Sporting Club Ltd | Arts & recreation | 2026 |
| Dickens Hair Limited | Other services | 2018 |
| Dickinsons Field Management Limited | Real estate | 2002 |
| Different PEN Limited | Professional & scientific | 2016 |
| DIG Deep Consulting Ltd | Professional & scientific | 2022 |
| DIG Deep Trading Ltd | Real estate | 2022 |
| Digi-Box.Co.Uk Limited | Administrative & support | 1997 |
| Digicheques Limited | Financial services | 2025 |
| Digital Kaizen Limited | Information & communication | 2018 |
| Digital Learning Centre Ltd | Professional & scientific | 2024 |
| Digitus IT Limited | Information & communication | 2019 |
| Dignuskos Limited | Professional & scientific | 2026 |
| Ding Sheng Clothing Limited | Wholesale & retail | 2016 |
| Dionne's Beauty Clinic Ltd | Other services | 2024 |
| Direct Consultancy Limited | Professional & scientific | 2004 |
| Dirmak Ltd. | Professional & scientific | 2025 |
| Disco Goat Limited | Wholesale & retail | 2024 |
| Disrepair Claims Direct Limited | Professional & scientific | 2024 |
| District Windows & Office Cleaning Services Limited | Administrative & support | 2011 |
| Ditella's Hair & Beauty Ltd | Other services | 2019 |
| Divento Financials Limited | Financial services | 2008 |
| Divert Marketing Limited | Professional & scientific | 2022 |
| Dixon Development Company Limited | Construction | 1960 |
| DJB Entertainment Ltd | Arts & recreation | 2022 |
| DJN Consultants Limited | Health & social care | 2009 |
| DL Events Group Limited | Arts & recreation | 2026 |
| DL Food Group Ltd | Hospitality | 2023 |
| DML Marketwise Ltd | Administrative & support | 2009 |
| Docklands Restaurants and Bars Ltd | Hospitality | 2009 |
| Doctrine Limited | Professional & scientific | 2012 |
| Dogfoolery Ltd | Wholesale & retail | 2024 |
| Dogma Consulting Limited | Financial services | 2011 |
| Dogma-F Limited | Professional & scientific | 2024 |
| Dollys Bridal Boutique Ltd | Wholesale & retail | 2018 |
| Dollys Little Sister Ltd | Wholesale & retail | 2025 |
| Domain Vault Ltd | Information & communication | 2026 |
| Dominic Lennon Associates Ltd | Professional & scientific | 2010 |
| Dorcas Court Freehold Limited | Households | 2019 |
| Dorninch Management Company Limited | Households | 1980 |
| Dotrevu Ltd | Information & communication | 2025 |
| Dott Enterprises Limited | Hospitality | 2021 |
| Douglas Salmon Investments Limited | Real estate | 1959 |
| Dove Wings Limited | Real estate | 2014 |
| DP Joinery Services Limited | Manufacturing | 2025 |
| DR Chin Ltd | Health & social care | 2022 |
| Drakes Renewables Limited | Energy | 2012 |
| Drill Consulting Ltd | Administrative & support | 2023 |
| Dripp. Apparel UK Limited | Wholesale & retail | 2025 |
| Dryangle Limited | Real estate | 2000 |
| DSC Management & Events Services Limited | Administrative & support | 2022 |
| DT Legal Limited | Professional & scientific | 2026 |
| Dubois Management Limited | Professional & scientific | 2025 |
| Duncan Bespoke Tailoring Limited | Wholesale & retail | 2019 |
| Duthie & Co LLP | | 2013 |
| Duthie Consultants Limited | Professional & scientific | 2014 |
| Duthie Legal Services Ltd | Extraterritorial | 2013 |
| Dutton Business Ltd | Real estate | 1988 |
| Dutton House Limited | Financial services | 2022 |
| DVO Agency Ltd | Professional & scientific | 2015 |
| DVO Group Ltd | Professional & scientific | 2015 |
| E.D Technical Drawing & Design Office Limited | Professional & scientific | 2021 |
| EAH Consultancy Limited | Professional & scientific | 2015 |
| Earl Data Ltd | Information & communication | 2013 |
| Early Money Habits Ltd | Education | 2026 |
| Earth Analytics Group Ltd. | Information & communication | 2021 |
| Earth Interiors Ltd | Professional & scientific | 2022 |
| East & Gray Ltd | Construction | 2015 |
| EBP Solutions Holdings Limited | Financial services | 2024 |
| Ebricks Ltd | Real estate | 2018 |
| Eccentric Originals Ltd | Wholesale & retail | 2023 |
| Ecegraphy Photography & Design Ltd | Wholesale & retail | 2021 |
| Echo Advisors Ltd | Professional & scientific | 2021 |
| Echo Bravo Developments Ltd | Construction | 2019 |
| Echo Bravo Holdings Ltd | Real estate | 2024 |
| Eco Waste and Recycling Limited | Water & waste | 2011 |
| Economad Solutions Ltd | Wholesale & retail | 2018 |
| ECS Consultancy Services Ltd | Professional & scientific | 2026 |
| Eden Residential Care Services Limited | Health & social care | 2024 |
| Edgehill Consultancy Limited | Professional & scientific | 2017 |
| Edgell Consulting Limited | Professional & scientific | 2010 |
| Edgell Services Limited | Professional & scientific | 2015 |
| Edgsons Ltd | Financial services | 2025 |
| Edits. Styling Ltd | Other services | 2013 |
| Edmund Beaufort Drive Management Co. Limited | Households | 1986 |
| EDS Brands Ltd | Administrative & support | 2023 |
| Edualde Ltd | Wholesale & retail | 2021 |
| Egean Education Limited | Education | 2022 |
| EI Retail & Consultancy Ltd | Wholesale & retail | 2019 |