| Dandelion Corporate Services Limited | Extraterritorial | 2019 |
| Dane Heights Limited | Households | 1988 |
| Danelea Freehold Limited | Households | 2025 |
| Danemere Limited | Real estate | 2020 |
| Daniel Humphrey Ltd | Construction | 2023 |
| Daniel James Cars Ltd | Wholesale & retail | 2013 |
| Daniel James Group Holdings Ltd | Real estate | 2025 |
| Daniele DE Winter Monaco-Uk Ltd | Wholesale & retail | 2013 |
| Darren Bradbury Ltd | Administrative & support | 2004 |
| Darren Lumley Limited | Other services | 2011 |
| Darren Moore Architectural Services Ltd | Professional & scientific | 2015 |
| Datajavelin Ltd | Information & communication | 2018 |
| Datech Insight Ltd | Information & communication | 2016 |
| David Sheil Studio Ltd | Arts & recreation | 2022 |
| David Youngs Services Limited | Manufacturing | 2020 |
| DDL207 Limited | Administrative & support | 2017 |
| Deeds Property Limited | Real estate | 2007 |
| Delsea Limited | Information & communication | 2016 |
| Delta Studios Ltd | Professional & scientific | 2024 |
| Denra Design Limited | Professional & scientific | 2011 |
| Deosculpt Ltd | Arts & recreation | 2018 |
| Dernwood Farms Limited | Agriculture & fishing | 2005 |
| DES Prichard Consulting Ltd | Professional & scientific | 2015 |
| Dgwpsychology Ltd | Education | 2024 |
| Direct Surveyor Management Limited | Real estate | 1995 |
| Discnew Limited | Real estate | 1996 |
| Discount Outlet 365 Ltd | Wholesale & retail | 2026 |
| Diversity Study Group Ltd | Professional & scientific | 2022 |
| DJ Paul Eden Ltd | Administrative & support | 2024 |
| DM1 Property Ltd | Real estate | 2025 |
| Dobson Games Ltd | Information & communication | 2024 |
| DOT COM Brands Limited | Extraterritorial | 2009 |
| Downham IT Ltd | Information & communication | 2021 |
| Dreamjust Limited | Households | 1988 |
| DS Dental Limited | Health & social care | 2019 |
| Duke's Quay Management Limited | Households | 2000 |
| DVR Equestrian Ltd | Manufacturing | 2021 |
| DW139 Holdings Limited | Financial services | 2021 |
| E & I Seaford Ltd | Wholesale & retail | 2021 |
| E S Expert Builders Ltd | Construction | 2010 |
| Eaton Catering Services Ltd | Hospitality | 2023 |
| Ebfc Ltd | Agriculture & fishing | 2025 |
| Economy Removals Ltd | Transport & logistics | 2021 |
| Eexcel Ltd | Information & communication | 2014 |
| Eight Digits Ltd | Information & communication | 2023 |
| EL Programme Services Ltd | Professional & scientific | 2025 |
| Elena DEE Limited | Manufacturing | 2000 |
| Elite London Property Management Ltd | Real estate | 2013 |
| Ella RAE Smith Limited | Arts & recreation | 2019 |
| Ellison Integra Ltd | Professional & scientific | 2018 |
| Elmslea Court (RTM) Company Limited | Households | 2014 |
| Emmell Ltd | Hospitality | 2022 |
| Ennerdale Limited | Real estate | 2002 |
| Enterprise West Management Ltd | Real estate | 2003 |
| Esplanade Mews Residents Company Limited | Households | 1998 |
| Evinas Coffee Garden Limited | Hospitality | 2026 |
| Excelsior Business Ltd | Real estate | 2021 |
| Exoteric Consulting Limited | Professional & scientific | 2025 |
| F.A.C.T.S. Investments Limited | Other services | 1978 |
| F.C Lonsdale Marketing Limited | Professional & scientific | 2024 |
| Fabulous Mamas Ever Limited | Wholesale & retail | 2025 |
| Fairfield Green (Inholms) Residents Ltd | Households | 2015 |
| Falcon & Rodi's Ltd | Wholesale & retail | 2024 |
| Farraline Projects Limited | Professional & scientific | 2020 |
| Fennicks Ltd | Wholesale & retail | 2021 |
| Filmspot Limited | Information & communication | 2016 |
| Finch Mansions Freehold Company Limited | Households | 2011 |
| Finding the Face Limited | Extraterritorial | 2019 |
| Fiona's Flora Ltd | Other services | 2025 |
| Fire Safety South East Limited | Professional & scientific | 2018 |
| Firezone Limited | Extraterritorial | 2009 |
| Firle Court Management (1986) Limited | Households | 1986 |
| Firle Estates Limited | Real estate | 2014 |
| Firmbase Driveways & Surfacing Limited | Construction | 2025 |
| Flatscreen Arms Limited | Wholesale & retail | 2003 |
| Florence House EOT Trustee Limited | Financial services | 2025 |
| Florence House Property Limited | Financial services | 2019 |
| Fluid Ounce Limited | Arts & recreation | 1998 |
| Fluid Ounce Music Limited | Information & communication | 2002 |
| FNJ Logistics Ltd | Transport & logistics | 2024 |
| FNS Installs Ltd | Construction | 2021 |
| Focus Performance Limited | Hospitality | 2013 |
| Fore Sports Ltd | Information & communication | 2017 |
| Fork in Garden Company Ltd | Professional & scientific | 2026 |
| Fotobox Limited | Professional & scientific | 2003 |
| FOX Plastering Solutions Ltd | Construction | 2022 |
| Frank Shaw Properties Ltd | Real estate | 2021 |
| Front Room (Bexhill) Ltd | Hospitality | 2018 |
| Furminger Properties Ltd | Real estate | 2019 |
| G Keith Building Company Limited | Construction | 2003 |
| G3 Architecture Ltd | Professional & scientific | 2015 |
| Gardenlife Products Ltd | Wholesale & retail | 2011 |
| Garnett Creative Ltd | Professional & scientific | 2026 |
| Gatorsoft Ltd | Information & communication | 2026 |
| GB Maxibasketball Ltd | Arts & recreation | 2021 |
| GB Property (Sussex) Ltd | Real estate | 2020 |
| GD Vélo Ltd | Wholesale & retail | 2026 |
| Gemineye Jewellery Limited | Wholesale & retail | 2025 |
| George & Blakes Kitchens Ltd | Hospitality | 2026 |
| GHS Building Limited | Construction | 2015 |