| Chartwell Foods Export Ltd | Wholesale & retail | 2022 |
| Chevron Flooring Ltd | Construction | 2026 |
| Christal Bay (2020) Ltd | Real estate | 2020 |
| Christie Spencer Interiors Limited | Professional & scientific | 2017 |
| Church Road Properties Limited | Real estate | 2013 |
| Cima Real Estate (UK) Limited | Real estate | 2013 |
| Citybirch Limited | Real estate | 1975 |
| Clayton Loans Limited | Financial services | 2018 |
| Cloudwise Solutions Limited | Information & communication | 2017 |
| CMC Sports Ltd | Professional & scientific | 2023 |
| Colourblack Ltd | Information & communication | 2004 |
| Comms Outlet Limited | Information & communication | 2024 |
| Connect Online Tuition Limited | Professional & scientific | 2019 |
| Consistent Sports Ltd | Professional & scientific | 2020 |
| Copernier Films Ltd | Information & communication | 2018 |
| Coppertree Consulting Limited | Professional & scientific | 2018 |
| Cosmetics & More Limited | Wholesale & retail | 2008 |
| Cowlard Construction Limited | Construction | 2002 |
| Cozzie Ltd | Wholesale & retail | 2021 |
| Crown Inn Keston Ltd | Hospitality | 2020 |
| Cryogen DRY Ice Limited | Professional & scientific | 2021 |
| Cryogen Limited | Extraterritorial | 2020 |
| Cryogen Technical Services Ltd | Professional & scientific | 2025 |
| Cryogenesis (UK) Limited | Professional & scientific | 1994 |
| Cupple Limited | Arts & recreation | 2016 |
| CW Repairs Limited | Construction | 2021 |
| CWT Fintech Limited | Information & communication | 2024 |
| D'Na Trade UK Ltd | Wholesale & retail | 2024 |
| D. Crawley Ltd | Transport & logistics | 2019 |
| D. Howell & Sons Limited | Water & waste | 2011 |
| D.C. Plastering & Building Limited | Construction | 2017 |
| Daks Plumbing Limited | Construction | 2017 |
| Daks Properties Limited | Real estate | 2020 |
| Dataweaver Limited | Information & communication | 1996 |
| DBS Design & Build Ltd | Construction | 2024 |
| DC Install & Maintenance Services Ltd | Construction | 2026 |
| DC Motor Company Limited | Wholesale & retail | 2013 |
| Debbie Western Flowers Ltd | Wholesale & retail | 2015 |
| Deli DI Luca Limited | Hospitality | 2012 |
| Deliciously Alfresco Ltd | Hospitality | 2015 |
| Denby Morris Ltd | Professional & scientific | 2012 |
| Design Seeds Ltd. | Information & communication | 2006 |
| Directedsteps Ltd | Wholesale & retail | 2022 |
| DK Consultancy Limited | Information & communication | 2021 |
| DK Electrical Services Limited | Construction | 2016 |
| DKL Shah and Co Limited | Financial services | 2025 |
| Domech Ltd | Construction | 2019 |
| Double J Building & Construction Ltd | Construction | 2024 |
| Douglas Cole Investments Ltd | Real estate | 2023 |
| Douvall's International Ltd | Wholesale & retail | 2020 |
| Douvalls Limited | Wholesale & retail | 2013 |
| Drainserve South East Limited | Water & waste | 2015 |
| Dream Design Deliver Ltd | Real estate | 2024 |
| Dunnlark Limited | Professional & scientific | 2016 |
| DVH Events & Recruitment Services Ltd | Hospitality | 2025 |
| E-Commerce Printing Co Ltd | Manufacturing | 2026 |
| Eanton Ltd | Construction | 2026 |
| Easi Thread Ltd | Wholesale & retail | 2021 |
| Ecotech Heating Services Ltd | Construction | 2009 |
| Eden Events Limited | Other services | 2023 |
| Edward Place Morpeth Ltd | Households | 2023 |
| EI8HTY EI8HT Consulting Ltd | Professional & scientific | 2025 |
| Elite Concierge Limited | Other services | 2015 |
| Elite Crash Repairs Limited | Wholesale & retail | 2015 |
| Ellis Property Holdings Ltd | Real estate | 2021 |
| Ellis Property Investments Limited | Real estate | 2017 |
| Elmfield Property Holdings Limited | Administrative & support | 2014 |
| Emerson Property Holdings Limited | Real estate | 2016 |
| Enigma Assets Limited | Real estate | 2019 |
| Enigma Housing Group Limited | Real estate | 2020 |
| Enigma I.T Limited | Information & communication | 1999 |
| Enigma Property Partners Limited | Real estate | 2020 |
| Erinvale Developments Limited | Construction | 2002 |
| Erinvale Group Limited | Financial services | 2003 |
| Erinvale Properties Limited | Real estate | 2004 |
| Esplendor Property Ltd | Real estate | 2019 |
| Esplendor Limited | Health & social care | 2009 |
| Evans Cleaning Services (London) Ltd | Administrative & support | 2019 |
| Evrst Ltd | Construction | 2022 |
| Excavators Express Limited | Administrative & support | 2025 |
| Excelsior Content Ltd | Information & communication | 2025 |
| FAB Cycle Services Limited | Manufacturing | 2020 |
| Fahey Installation Ltd | Construction | 2026 |
| Faulkner Electrical Ltd | Construction | 2018 |
| FBB Elec Ltd | Construction | 2024 |
| FCL Building Services Ltd | Administrative & support | 2017 |
| Fear Meala Tithe Limited | Real estate | 2022 |
| Fearndale Construction Limited | Construction | 2022 |
| Fford Portfolio Ltd | Professional & scientific | 2022 |
| Fford Studio Ltd | Professional & scientific | 2021 |
| Field UK Trading Limited | Other services | 2025 |
| Filth Fighters Ltd | Administrative & support | 2024 |
| Finding YOU Coaching Ltd | Health & social care | 2024 |
| Findon Structures Ltd | Professional & scientific | 2021 |
| Fire Defence Solutions Ltd | Public administration | 2024 |
| Focused on Safety Ltd | Administrative & support | 2026 |
| Folio Consult Ltd | Administrative & support | 2025 |
| Fortis Talent Search Ltd | Administrative & support | 2025 |
| FOX Brasserie Ltd | Hospitality | 2023 |
| FTS Development Ltd | Real estate | 2025 |