| Expert Repair Phones Limited | Other services | 2024 |
| Expert Security Systems UK Limited | Administrative & support | 2013 |
| Expert Surveys & Engineering Ltd | Professional & scientific | 2022 |
| Experts Security Services Ltd | Other services | 2024 |
| Exploreflights Limited | Administrative & support | 2025 |
| Explosive Fireworks Limited | Wholesale & retail | 2015 |
| Exposure Guerrilla Marketing Ltd | Professional & scientific | 2015 |
| Express Catering Equipment Limited | Professional & scientific | 2014 |
| Express Delivery Services (Nationwide) Limited | Health & social care | 2018 |
| Express Energy Limited | Wholesale & retail | 2018 |
| Express Mini Market Tongemoor Ltd | Wholesale & retail | 2023 |
| Express Motor Components Limited | Wholesale & retail | 2002 |
| Express Redevelopments Limited | Other services | 2025 |
| Express Transport Solutions Limited | Transport & logistics | 2021 |
| Express Travels (Bolton) Limited | Transport & logistics | 2016 |
| Extension Specialists 1981 Limited | Construction | 2024 |
| Extension Pro Limited | Construction | 2017 |
| Extramation Ltd | Information & communication | 2005 |
| Extramation Systems Integration Ltd | Information & communication | 2013 |
| Extraocular Limited | Health & social care | 2023 |
| Extraordinary Silence Limited | Information & communication | 2020 |
| Extreme Day Trips Limited | Information & communication | 2024 |
| Extreme Doors Ltd | Wholesale & retail | 2026 |
| Extremely Ltd | Wholesale & retail | 2025 |
| Exuma Property Management Limited | Real estate | 2022 |
| EYA Corp Ltd | Professional & scientific | 2024 |
| EYE AM Limited | Health & social care | 2011 |
| EYE Optics Limited | Other services | 2019 |
| EYE Sense Optical Ltd | Extraterritorial | 2024 |
| Eyebay Ltd | Health & social care | 2024 |
| Eyecare Dalston Limited | Wholesale & retail | 2024 |
| Eyecare Derby Limited | Wholesale & retail | 2025 |
| Eyecare Ilford Limited | Wholesale & retail | 2024 |
| Eyeconic London Limited | Administrative & support | 2018 |
| Eyedub Consulting Ltd | Information & communication | 2024 |
| Eyera Images Ltd | Professional & scientific | 2023 |
| Eyes at Home Limited | Wholesale & retail | 2019 |
| Eyles Trading Limited | Wholesale & retail | 2020 |
| Eyon Ltd | Information & communication | 2014 |
| EZ Smiles Limited | Health & social care | 2023 |
| Ezer Brooks Ltd | Wholesale & retail | 2013 |
| EZH Homes Ltd | Real estate | 2024 |
| EZI Klean Limited | Other services | 2025 |
| EZI Solutions Ltd | Wholesale & retail | 2026 |
| Ezink UK Ltd | Other services | 2025 |
| EZO Sports Limited | Wholesale & retail | 2026 |
| Ezone Store Ltd | Wholesale & retail | 2026 |
| EZR UK Limited | Wholesale & retail | 2024 |
| Ezza Group Ltd | Transport & logistics | 2021 |
| F & a Holdings II Ltd | Real estate | 2023 |
| F & a Holdings Ltd | Administrative & support | 2019 |
| F & B Properties Limited | Real estate | 2022 |
| F & E Property Group Ltd | Hospitality | 2019 |
| F & L Electrical Ltd | Construction | 2024 |
| F & N D Services Limited | Health & social care | 2023 |
| F & S Facilities Ltd. | Wholesale & retail | 2006 |
| F & S Jewellers Ltd | Wholesale & retail | 2010 |
| F a Motors (NW) Ltd | Wholesale & retail | 2024 |
| F a Services (NW) Limited | Professional & scientific | 2011 |
| F and T Commercial Limited | Real estate | 2021 |
| F Bargain Ltd | Wholesale & retail | 2025 |
| F Marku Limited | Hospitality | 2025 |
| F Mills Services Limited | Professional & scientific | 2025 |
| F Sherlock (Electrical Contractors) Limited | Construction | 2003 |
| F&A Transport Solutions Ltd | Transport & logistics | 2025 |
| F&B Capital Ltd | Real estate | 2019 |
| F&B Global Ltd | Financial services | 2023 |
| F&K Trading Limited | Wholesale & retail | 2024 |
| F&S Hindley Ltd | Hospitality | 2024 |
| F&S Investment Group Ltd | Real estate | 2026 |
| F&T Terrix (South West) Limited | Construction | 2021 |
| F.A.C. Site Services Limited | Construction | 1998 |
| F.Schwarz Limited | Professional & scientific | 2023 |
| F.T.D.S Ltd | Wholesale & retail | 1985 |
| F2 Recruitment Ltd | Administrative & support | 2025 |
| F2F Holdings Limited | Financial services | 2025 |
| F2F Software & Consulting Limited | Financial services | 2024 |
| F3 Auto Mods Ltd | Wholesale & retail | 2024 |
| F5 Ventures Ltd | Financial services | 2021 |
| FA News Ltd | Wholesale & retail | 2012 |
| FA Oral Surgery Ltd | Health & social care | 2023 |
| FA Prop Limited | Real estate | 2020 |
| FA Vision Ltd | Health & social care | 2025 |
| FAA2AMY Ltd | Administrative & support | 2021 |
| FAB Lettings Ltd | Households | 2026 |
| FAB Premium Line Ltd | Other services | 2019 |
| FAB5 Ltd | Real estate | 2021 |
| Faber Technical Recruitment Ltd | Administrative & support | 2020 |
| Fabfer Property Ltd | Real estate | 2022 |
| Fabian David Ltd | Other services | 2019 |
| Fabica Limited | Real estate | 2022 |
| Fable Pictures Limited | Information & communication | 2016 |
| Fabmas Limited | Professional & scientific | 2014 |
| Fabric & Furnishings Limited | Wholesale & retail | 2003 |
| Fabrico Properties Ltd | Real estate | 2024 |
| Fabrinex Limited | Wholesale & retail | 2025 |
| Fabriplas Ltd | Manufacturing | 2018 |
| Fabrivox Ltd | Wholesale & retail | 2026 |
| Fabrons Accounting Ltd. | Professional & scientific | 2014 |
| Fabs Garages Ltd | Wholesale & retail | 2020 |