| Excel Services London Ltd | Professional & scientific | 2017 |
| Excel Thoroughbreds Ltd | Administrative & support | 2021 |
| Excel Training Centre Limited | Hospitality | 2007 |
| Excellence Bureau Limited | Administrative & support | 2024 |
| Excellence Path Support Limited | Administrative & support | 2024 |
| Excellency Shop Fitters Ltd | Construction | 2014 |
| Excellent Build Ltd | Construction | 2019 |
| Excellent Cleaner Limited | Administrative & support | 2022 |
| Excellentplacetowork Ltd | Professional & scientific | 2025 |
| Exclusiv Construct Ltd | Construction | 2025 |
| Exclusiv Kitchen Construction Limited | Construction | 2018 |
| Execujet (UK) Limited | Transport & logistics | 2004 |
| Execute Global Ltd | Administrative & support | 2019 |
| Execution Dependent Films Limited | Information & communication | 2015 |
| Executive (London) Cars Limited | Transport & logistics | 2007 |
| Executive Aviation Group Limited | Transport & logistics | 1998 |
| Executive Ventures Ltd | Real estate | 2021 |
| EXF Solution Limited | Wholesale & retail | 2025 |
| Exhibition Staff Resourcing Ltd | Administrative & support | 2025 |
| Eximart Ltd | Wholesale & retail | 2025 |
| EXP J Ltd | Manufacturing | 2025 |
| Experienced Builders Ltd | Construction | 2018 |
| Expert Consultancy Services Ltd | Professional & scientific | 2024 |
| Expert Dryliners Ltd | Construction | 2022 |
| Expert Finisher Limited | Construction | 2022 |
| Expert Mortgage Solutions Limited | Financial services | 2018 |
| Experts Care Ltd | Health & social care | 2014 |
| Experts Removals Limited | Transport & logistics | 2024 |
| Explissive Ltd | Professional & scientific | 2023 |
| Explore Accessories Ltd | Wholesale & retail | 2019 |
| Explorer Traveller Ltd | Wholesale & retail | 2017 |
| Explorers Educare Limited | Education | 2018 |
| Express Car Recovery Ltd | Transport & logistics | 2026 |
| Express Drive Holdings Ltd | Real estate | 2026 |
| Express Mold Ltd | Transport & logistics | 2026 |
| Express Shop Fitters (UK) Ltd | Manufacturing | 2014 |
| Express Technical Services Limited | Construction | 2002 |
| Exquisite Testing Limited | Information & communication | 2012 |
| External Building Services Limited | Construction | 2004 |
| Extreme Motorcycles Ltd | Wholesale & retail | 2025 |
| Extrosure Ltd | Professional & scientific | 2017 |
| Exxxon Ltd | Other services | 2014 |
| EY Consulting Limited | Professional & scientific | 2022 |
| EY Surveying Limited | Professional & scientific | 2024 |
| Eyaaz Ltd | Wholesale & retail | 2024 |
| Eyana London Ltd | Wholesale & retail | 2026 |
| EYE Clinic Romford Ltd | Wholesale & retail | 2024 |
| EYE of the Sniper Landscaping Ltd | Administrative & support | 2025 |
| Eyecandy Hair Design Limited | Other services | 2012 |
| Eyelash Bar Ltd | Wholesale & retail | 2020 |
| Eyelashbar Beauty Ltd | Other services | 2026 |
| Eyelevel Driving School Limited | Education | 2025 |
| Eyre Trading Ltd | Wholesale & retail | 2019 |
| EYS Garage Ltd | Wholesale & retail | 2026 |
| Ezat Group Ltd | Real estate | 2024 |
| Ezavision London Ltd | Wholesale & retail | 2024 |
| Ezee Car Ltd | Administrative & support | 2016 |
| Ezgi New Sales Limited | Wholesale & retail | 2025 |
| Ezshi 2024 Limited | Real estate | 2024 |
| EZY ERP Limited | Information & communication | 2025 |
| Ezzy Go Limited | Manufacturing | 2018 |
| Ezzygreenltd Ltd | Professional & scientific | 2026 |
| F & a & B Construction Ltd | Construction | 2023 |
| F & D Electrics Limited | Construction | 2014 |
| F & F Distribution Ltd | Wholesale & retail | 2014 |
| F & S London Ltd | Other services | 2019 |
| F a Firman (Glass Projects) Limited | Construction | 2014 |
| F a Firman (Harold Wood) Limited | Manufacturing | 1960 |
| F Alam Limited | Other services | 2018 |
| F and R Property Limited | Real estate | 2021 |
| F Barnes Solicitors Limited | Professional & scientific | 2014 |
| F G Plumbing Ltd | Construction | 2016 |
| F Group Construction Ltd | Construction | 2020 |
| F Pro Ltd | Construction | 2022 |
| F&A Ventures Ltd | Hospitality | 2025 |
| F&C Resourcesltd Limited | Health & social care | 2018 |
| F&I Contract Service Limited | Construction | 2020 |
| F&I Property Investment Ltd | Financial services | 2025 |
| F&K Capital Ltd | Administrative & support | 2024 |
| F.A. Pope (Transport) Limited | Transport & logistics | 1985 |
| F.A.S Heating Ltd | Construction | 2021 |
| F.G. Bruschweiler (Antiques) Limited | Wholesale & retail | 1976 |
| F.Lupo Limited | Construction | 2023 |
| F.R.B Construction Limited | Construction | 2020 |
| F16 Logistics Ltd | Transport & logistics | 2026 |
| F1RST Quality Care Limited | Health & social care | 2025 |
| F23 Properties Ltd | Real estate | 2021 |
| FA21 Digital Ltd | Wholesale & retail | 2026 |
| Faamm(Uk) Limited | Construction | 2016 |
| Faarim Ltd | Wholesale & retail | 2025 |
| Faateh Estates Ltd | Real estate | 2022 |
| FAB 2 Warriors Sickle Cell Ltd | Health & social care | 2020 |
| FAB Art Ltd | Wholesale & retail | 2024 |
| FAB Home Construction Company Ltd | Construction | 2015 |
| Faber House Limited | Information & communication | 1999 |
| Fabq Solutions Ltd | Construction | 2025 |
| Fabricate This! Ltd | Wholesale & retail | 2014 |
| Fabrickkear Limited | Administrative & support | 2013 |
| Fabsun Limited | Professional & scientific | 2014 |
| Fabuk Express Ltd | Transport & logistics | 2020 |