| Development Solutions Europe Limited | Professional & scientific | 2000 |
| Devereux Nash Limited | Administrative & support | 2005 |
| Devon Racing Ltd | Arts & recreation | 2026 |
| Devonshire Property Enterprise Ltd | Real estate | 2019 |
| Dexai Limited | Information & communication | 2024 |
| Dext Consulting Limited | Information & communication | 2010 |
| DFM Ventures Limited | Construction | 2026 |
| Dgen Holdco Limited | Information & communication | 2008 |
| Dgen Network Limited | Information & communication | 2004 |
| DGM Developments Ltd | Real estate | 2023 |
| DGS Electrics Ltd | Construction | 2025 |
| DH Marketing Ltd | Professional & scientific | 2014 |
| Dhansiri Epsom Ltd | Hospitality | 2019 |
| Dhansiri Ltd | Hospitality | 2021 |
| Dharma Properties Limited | Real estate | 2005 |
| Dhspfx Limited | Professional & scientific | 2015 |
| Diadem UK Limited | Professional & scientific | 2003 |
| Diamond Football Company Limited | Wholesale & retail | 1996 |
| Diamond Managing Agents Limited | Professional & scientific | 2011 |
| Diamond Retail Properties Limited | Real estate | 2010 |
| Diamond Shopping Ltd | Wholesale & retail | 2023 |
| Diamond Sixteen Consulting LLP | | 2024 |
| Diamond Sixteen Investments Limited | Real estate | 2024 |
| Diana Coen Limited | Arts & recreation | 2011 |
| DIC Products Limited | Manufacturing | 2024 |
| Dick Tyler Consultancy LLP | | 2016 |
| Diego Investments Limited | Professional & scientific | 2021 |
| Diego Property Limited | Real estate | 2022 |
| Digby House Management Ltd | Real estate | 2011 |
| Digidog Ltd | Information & communication | 1997 |
| Digital Accounting Platform Limited | Professional & scientific | 2017 |
| Digital Buzziness Ltd | Professional & scientific | 2022 |
| Digital Inc. Limited | Wholesale & retail | 2014 |
| Digital Industria Ltd | Information & communication | 2015 |
| Digital Innovators Ltd | Information & communication | 2016 |
| Digital Leopard Limited | Professional & scientific | 2018 |
| Digital Nest Marketing Ltd | Professional & scientific | 2021 |
| Digital Waste Collection Limited | Water & waste | 2026 |
| Digitaldreammedia.Com. Ltd. | Information & communication | 2007 |
| Digitfore Finance Limited | Professional & scientific | 2015 |
| Digitiate Limited | Information & communication | 2018 |
| Digitz Ltd | Professional & scientific | 2022 |
| Dimayuga Dynasty Ltd | Professional & scientific | 2017 |
| Dinevi Limited | Other services | 2015 |
| Dink and Drive Ltd | Arts & recreation | 2023 |
| Diplodoughcus Ltd | Wholesale & retail | 2022 |
| Direct Physio Ltd | Other services | 2019 |
| Direction Fire Limited | Construction | 1991 |
| Discover Limited | Arts & recreation | 1978 |
| Distinct Limited | Administrative & support | 2009 |
| Distinctly Creative Ltd | Professional & scientific | 2022 |
| Distributor Support Services Limited | Extraterritorial | 1995 |
| Ditton Close Residents Association Limited | Households | 1958 |
| Diverse Travel Limited | Administrative & support | 2013 |
| Divine Prince Productions Ltd | Arts & recreation | 2010 |
| Diving Bell Ltd | Professional & scientific | 2017 |
| DIY DIRECT2U Limited | Wholesale & retail | 2015 |
| Dizzrupter Ltd | Professional & scientific | 2024 |
| DJ Comms Ltd | Information & communication | 2023 |
| DJ Live Ltd | Arts & recreation | 2025 |
| DJB Woking Limited | Extraterritorial | 2015 |
| DJD Consulting Limited | Information & communication | 2012 |
| DJM Project Consultancy Limited | Professional & scientific | 2019 |
| DJP Finance Solutions Limited | Professional & scientific | 2018 |
| DJT Garden Services Ltd | Administrative & support | 2026 |
| DKI Holdings (Sussex) Ltd | Real estate | 2012 |
| DKI Ltd | Construction | 2006 |
| Dlgp Consulting Limited | Professional & scientific | 2025 |
| DLL EBT Limited | Administrative & support | 2019 |
| DM & Sons Heating & Plumbing Ltd | Construction | 2021 |
| DM Sealants Limited | Construction | 2006 |
| DMB Enterprises Ltd | Education | 2015 |
| Dmechanical Ltd | Construction | 2025 |
| DMF Builders Limited | Construction | 2012 |
| DMK Healthcare Ltd | Health & social care | 2022 |
| DMK14 Ltd | Transport & logistics | 2018 |
| DMP Construction Limited | Extraterritorial | 2005 |
| DN Accountants Limited | Extraterritorial | 2012 |
| DNA Accountants Limited | Professional & scientific | 2002 |
| DNH LAB Ltd | Health & social care | 2023 |
| Dobbe's Garden Centre Ltd | Administrative & support | 2011 |
| Dobbe's Garden Machinery Ltd | Wholesale & retail | 2021 |
| Dojatec UK Ltd | Professional & scientific | 2025 |
| Doktu Limited | Health & social care | 2025 |
| Dollington Ltd | Real estate | 2002 |
| Domalos Enterprises Limited | Arts & recreation | 2014 |
| Domex Bikes Limited | Manufacturing | 2023 |
| Domex Limited | Other services | 2010 |
| Domex Properties Limited | Real estate | 2016 |
| Dominus Karolus Limited | Professional & scientific | 2026 |
| Dominy Legal Limited | Professional & scientific | 2022 |
| Domus Pro Ltd | Other services | 2015 |
| Donau Express Services Limited | Administrative & support | 2005 |
| Donau Limited | Professional & scientific | 2014 |
| Doncarr Ltd | Information & communication | 2024 |
| Donell Limited | Professional & scientific | 2018 |
| Donnellsons (London) LLP | | 2012 |
| Donray Properties Ltd | Real estate | 2023 |
| Doorstep Ventures Ltd | Real estate | 2022 |
| Dora's Cafe Limited | Hospitality | 2022 |