| DH Property Limited | Real estate | 2005 |
| Dhfour Limited | Financial services | 2015 |
| Dhiyo & Dhiya Consultants Limited | Professional & scientific | 2017 |
| Dhuvarahan Properties Ltd | Real estate | 2022 |
| DI Carlo Hairdressing Ltd | Other services | 2015 |
| DI Rolling Cafe Ltd | Hospitality | 2024 |
| Diabase Investments Ltd | Real estate | 2022 |
| Diabase Property Ltd | Real estate | 2020 |
| Dial Post Developments Limited | Real estate | 2024 |
| Diamed Ltd | Health & social care | 2023 |
| Diamond DCO Two Limited | Wholesale & retail | 1963 |
| Diamond Motors 2025 Ltd | Wholesale & retail | 2025 |
| Diamond Nails Sutton Limited | Other services | 2023 |
| Diana Works Ltd | Professional & scientific | 2026 |
| Dicky Diamonds Limited | Wholesale & retail | 2021 |
| Didi 67 Ltd | Administrative & support | 2017 |
| Digi International Limited | Information & communication | 1995 |
| Digicounts Ltd | Professional & scientific | 2021 |
| Digifusion Ltd | Wholesale & retail | 2024 |
| Digiscan Surveys Limited | Professional & scientific | 2025 |
| Digit-It UK Limited | Information & communication | 2023 |
| Digital BCN Ltd | Professional & scientific | 2020 |
| Digital Entertainment Group International | Administrative & support | 2002 |
| Digital Finance Limited | Professional & scientific | 2017 |
| Digital Fuel Performance Limited | Professional & scientific | 2017 |
| Digital London Enterprises Limited | Wholesale & retail | 2025 |
| Digital Peacock Ltd | Information & communication | 2019 |
| Digital Satellite Service Limited | Other services | 2004 |
| Digital TV Services Ltd | Construction | 2018 |
| Digitalhealthandfocus Ltd | Education | 2024 |
| Digitalofficepro Limited | Information & communication | 2017 |
| Digitelp Ltd | Information & communication | 2024 |
| Dilbagh Services Limited | Information & communication | 2024 |
| Dilli 6 Limited | Hospitality | 2024 |
| Dilli Pakwaan Ltd | Wholesale & retail | 2023 |
| Dilly Studios Ltd | Professional & scientific | 2025 |
| Dilston Property Services Ltd | Real estate | 2022 |
| Dimi-It Limited | Information & communication | 2018 |
| Dims Painting & Decorating Ltd | Construction | 2021 |
| Dine in (SE5) Limited | Hospitality | 2010 |
| Dinetech Ltd | Information & communication | 2025 |
| Ding Tea London - 2 Ltd | Hospitality | 2020 |
| Dinh LE Ltd | Other services | 2016 |
| Dinton House Investments Limited | Real estate | 2022 |
| Dinton Property Ltd | Real estate | 2023 |
| Diph Limited | Wholesale & retail | 2014 |
| Direct English Limited | Education | 2009 |
| Direct Water Ltd | Water & waste | 2015 |
| Divanalounge Limited | Hospitality | 2021 |
| Divine Beauty (Norbiton) Ltd | Other services | 2019 |
| Divine Compliance & Risk Mgmt Services Limited | Administrative & support | 2024 |
| Divine Favour Healthcare Services Limited | Health & social care | 2026 |
| DIVO77 Ltd | Hospitality | 2013 |
| Dizzy Films Limited | Information & communication | 2022 |
| DJ Mallu Driving School Ltd | Education | 2024 |
| Dj.Sewell Ltd | Construction | 2011 |
| DJA59125 Limited | Professional & scientific | 2022 |
| Djamel Ltd | Wholesale & retail | 2024 |
| Djb-E Ltd | Construction | 2024 |
| DJC Cons Ltd | Other services | 2015 |
| DJS Property Solutions Ltd | Construction | 2026 |
| Dknr Sales Limited | Wholesale & retail | 2024 |
| DLC Electrical Limited | Construction | 2015 |
| DM Freelancewise Limited | Professional & scientific | 2024 |
| Dmjh Ltd | Professional & scientific | 2024 |
| DMS Building Limited | Construction | 2012 |
| DMS Scaffolding Services Limited | Construction | 2022 |
| Dmspace Limited | Wholesale & retail | 2020 |
| DN Properties Services Ltd | Real estate | 2024 |
| DNA Groundworks Limited | Administrative & support | 2024 |
| DNK Building Solutions Ltd | Construction | 2015 |
| DNK Communications Ltd | Professional & scientific | 2021 |
| DO GIA Limited | Other services | 2026 |
| DOC Lighting Limited | Administrative & support | 2010 |
| Docprime Limited | Health & social care | 2015 |
| Doctorwellness Limited | Other services | 2023 |
| Dodds & Daughters Limited | Real estate | 2009 |
| Dodger Investments Ltd | Real estate | 2024 |
| Dollys Care Limited | Health & social care | 2023 |
| DOM Eco Construction Limited | Construction | 2017 |
| DOM WYN Ltd | Hospitality | 2014 |
| Domestique Coffee Limited | Hospitality | 2024 |
| DON and Twins Limited | Real estate | 2020 |
| Donald Consultancy Limited | Health & social care | 2010 |
| Dora's Kitchen Limited | Hospitality | 2022 |
| Dorking Plumbing Supplies Limited | Wholesale & retail | 2004 |
| Dorking West Hand Car Wash Ltd | Administrative & support | 2025 |
| Dottie Lottie's Boutique Ltd | Wholesale & retail | 2023 |
| Doughty Contracting Limited | Construction | 1997 |
| Douglas Stuart Ltd | Administrative & support | 2016 |
| Dovly Kitchen Fitter Solutions Ltd | Manufacturing | 2020 |
| Dowling Blunt EOT Limited | Administrative & support | 2017 |
| Dowling Blunt Limited | Professional & scientific | 1993 |
| Down to Earth Electrical & Building Contractors Ltd | Construction | 2015 |
| Downforce Creative Limited | Professional & scientific | 2022 |
| Downlands Trust | Other services | 2008 |
| Dowton Properties Limited | Real estate | 2024 |
| Dpna & Co. Properties Ltd | Real estate | 2023 |
| DPR365 Solutions Ltd | Information & communication | 2010 |
| DPS LED Lighting Ltd | Manufacturing | 2012 |