| Determinanda Limited | Administrative & support | 2015 |
| DEVELOPMENT88 Ltd | Construction | 2017 |
| Devious Machines Limited | Information & communication | 2018 |
| Devise IT Consulting Ltd | Information & communication | 2012 |
| Devon Farm Services Limited | Agriculture & fishing | 2010 |
| Devonshire Park Management Limited | Households | 1997 |
| Devont Training & Consultancy Limited | Professional & scientific | 2008 |
| Devops Consultants Limited | Information & communication | 2017 |
| DFL Holdings Limited | Professional & scientific | 2007 |
| DG Contract Services Limited | Professional & scientific | 2026 |
| Dharmala Holdings Limited | | 1995 |
| DHC Developments (Farnham) Ltd | Construction | 2025 |
| DHC Holdings (Farnham) Ltd | Financial services | 2025 |
| Dial House Consulting Ltd | Professional & scientific | 2021 |
| Dial Square Associates Limited | Professional & scientific | 2004 |
| Dial Square Investments Limited | Real estate | 2022 |
| Dibsan Limited | Information & communication | 2004 |
| Diddly Squat Properties Ltd | Real estate | 2019 |
| Different Tuesday Limited | Professional & scientific | 2026 |
| Digital Devotion Ltd | Information & communication | 2018 |
| Digital Forest Interactive Solutions Limited | Information & communication | 2004 |
| Digital HUT Limited | Information & communication | 2013 |
| Digital Intermediate Limited | Information & communication | 2014 |
| Digital Native Group Limited | Information & communication | 2018 |
| Digital Native Limited | Professional & scientific | 2007 |
| Digital Parakeet Ltd | Information & communication | 2018 |
| Digital Petcare UK Limited | Information & communication | 2019 |
| Digital Practice Limited | Information & communication | 2014 |
| Digitex Trading Systems Ltd | Administrative & support | 2010 |
| Dindex Limited | Professional & scientific | 2024 |
| Dino Tints and Wraps Ltd | Professional & scientific | 2014 |
| Dinosoft Ltd | Information & communication | 2026 |
| Dinsdale Residents Association Limited | Real estate | 1989 |
| Dirigo Limited | Information & communication | 2017 |
| Discourse Limited | Professional & scientific | 2025 |
| Discovery Worldwide Limited | Administrative & support | 1997 |
| Disley Builders Limited | Construction | 2018 |
| Dive Raid International Ltd | Education | 2021 |
| Divergency FX Limited | Financial services | 2019 |
| Diverse Building Solutions Ltd | Real estate | 2010 |
| Diverse Communities Ltd. | Professional & scientific | 2013 |
| DJB Accountancy Limited | Professional & scientific | 2004 |
| DJC Property Ltd | Real estate | 2017 |
| DJW Technical Support Limited | Information & communication | 2009 |
| DLL Brickwork Ltd | Construction | 2025 |
| DLM Project Services Limited | Construction | 2020 |
| DLS Systems Limited | Administrative & support | 2013 |
| DM Flow Ltd | Professional & scientific | 2026 |
| DM Pharma Consultancy Ltd | Professional & scientific | 2021 |
| Dmdg Ltd | Transport & logistics | 2018 |
| DMF Consulting Ltd | Information & communication | 2026 |
| DML Merchant Services Ltd | Wholesale & retail | 2025 |
| DMS Architects Ltd | Professional & scientific | 2014 |
| DMW Consultants Limited | Extraterritorial | 2007 |
| DMW Estates Ltd | Real estate | 2020 |
| DNP Construction Limited | Construction | 2012 |
| DO the Twist Limited | Other services | 2021 |
| Dockar Consulting Ltd | Professional & scientific | 2005 |
| Docomed Ltd | Health & social care | 2025 |
| Docustor Limited | Information & communication | 2002 |
| Dodgeball UK Limited | Arts & recreation | 2011 |
| DOE Wood Fired Pizza Ltd. | Hospitality | 2015 |
| Doha Contracting Ltd | Professional & scientific | 2018 |
| Domino Building Services Limited | Manufacturing | 1990 |
| Domo Disaster Recovery Ltd | Construction | 2022 |
| Donkii Limited | Professional & scientific | 2008 |
| Doplr Limited | Administrative & support | 2023 |
| Dotup Limited | Extraterritorial | 2007 |
| Double-O Properties Ltd | Real estate | 2020 |
| Doublejump Ltd | Information & communication | 2015 |
| Doubletalk Ltd | Information & communication | 2017 |
| Dove Advisory Ltd | Administrative & support | 2025 |
| Dover Garage (ASH) Limited | Wholesale & retail | 1988 |
| Dovetail Workers in Wood Limited | Manufacturing | 2006 |
| Dowling Communications Ltd | Professional & scientific | 2024 |
| Downshill Residents Society Limited | Households | 1969 |
| DP Surfaces Ltd | Construction | 2026 |
| DR Advisory Ltd | Professional & scientific | 2023 |
| DR Charlotte K Ltd | Education | 2023 |
| DR Gary Strydom Limited | Health & social care | 2006 |
| DR JOE (Facial Aesthetic Cosmetic Enhancements) Ltd | Health & social care | 2019 |
| DR Skincare & Aesthetics Ltd | Other services | 2024 |
| DR Wall Ltd | Construction | 2021 |
| Dractive Ltd | Information & communication | 2026 |
| Dragon Health Ltd | Other services | 2019 |
| Dragonfly Close Tolworth Limited | Households | 2014 |
| DRAKON66 Ltd | Administrative & support | 2010 |
| DRG Design & Build Ltd | Construction | 2020 |
| Drive for Efficiency Ltd | Extraterritorial | 2013 |
| Drive Intelligence Limited | Professional & scientific | 2026 |
| Drivematch Ltd | Wholesale & retail | 2026 |
| Driveway Construction Limited | Construction | 2016 |
| Driving Retail Holdings Limited | Wholesale & retail | 2026 |
| DRN Associates Limited | Professional & scientific | 2001 |
| Drover Investments Limited | Administrative & support | 2004 |
| Drum Studios Ltd | Information & communication | 2006 |
| DRY Bulk Centre of Excellence | Administrative & support | 2023 |
| DSK MCT Ltd | Education | 2025 |
| DTG Logistics Limited | Transport & logistics | 2012 |
| DU Music Ltd | Information & communication | 2025 |