| Exchenge Ltd | Information & communication | 2021 |
| Exchenge-Crypto Ltd | Information & communication | 2021 |
| Exclusive Alcohols Ltd | Other services | 2014 |
| Exclusive Clothing Limited | Other services | 2025 |
| Exdia Consulting Limited | Information & communication | 2004 |
| Execfluence Group Ltd | Information & communication | 2025 |
| Execfluence Limited | Information & communication | 2025 |
| Executive Connect Limited | Administrative & support | 2018 |
| Executive Dreams Ltd | Professional & scientific | 2024 |
| Executive Media Group Limited | Information & communication | 2023 |
| Executive Window Tint Ltd | Manufacturing | 2019 |
| Exekute Ltd | Construction | 2023 |
| Exemplar Retailers Limited | Wholesale & retail | 2024 |
| Exeter Number 1 Limited | Real estate | 2016 |
| Exley Rentals Limited | Real estate | 2022 |
| EXO Prosthetics Ltd | Manufacturing | 2021 |
| Exodio Labs Ltd | Information & communication | 2024 |
| Exotic Cafe Ltd | Hospitality | 2020 |
| Exotic Car Wash Ltd | Other services | 2025 |
| Expect International Ltd | Professional & scientific | 2005 |
| Experience Science Limited | Education | 2006 |
| Expert Exporter for YOU Limited | Wholesale & retail | 2023 |
| Expert Source International Ltd | Other services | 2015 |
| Expert Timber Installations Ltd | Construction | 2009 |
| Expertband Limited | Professional & scientific | 1992 |
| Experts Marketing Ltd | Professional & scientific | 2020 |
| Expleo UK Limited | Professional & scientific | 1973 |
| Exploration Safety Services Ltd | Mining & quarrying | 2019 |
| Exponential Growth Consultancy Limited | Professional & scientific | 2020 |
| Export for U Limited | Wholesale & retail | 2023 |
| Export for YOU Limited | Wholesale & retail | 2023 |
| Express Carpets (Preston) Limited | Wholesale & retail | 2005 |
| Express Cutting & Welding Services Limited | Wholesale & retail | 1980 |
| Express Delivery Network Ltd | Wholesale & retail | 2015 |
| Express Fulfilment Solutions Limited | Wholesale & retail | 2017 |
| Express Instrument Hire (Holdings) Limited | Other services | 1996 |
| Express Life Limited | Information & communication | 2010 |
| Express Maintenance Cover Ltd | Construction | 2016 |
| Express Medical (NW) Ltd | Transport & logistics | 2013 |
| Express Sourcing Limited | Wholesale & retail | 2015 |
| Express Special Valet Ltd | Administrative & support | 2023 |
| Exquisite Nails Ltd | Other services | 2021 |
| Extra Creative Ltd | Information & communication | 2010 |
| Extract Pro Ltd | Administrative & support | 2024 |
| Extraction Manufacturers and Designers Association | Other services | 2017 |
| Extreme Outdoors SIP Powers Ltd | Other services | 2020 |
| EY UP Duck Ltd | Hospitality | 2019 |
| Eyapsychology Ltd | Health & social care | 2024 |
| EYE Aesthetics by Oana Limited | Health & social care | 2025 |
| EYE Care (NW) Ltd | Wholesale & retail | 2017 |
| EYE in the Detail Limited | Administrative & support | 2015 |
| EYE Surgeon Limited | Health & social care | 2022 |
| Eyecare Optical Limited | Other services | 2000 |
| Eyeshop Optical (UK) Ltd. | Other services | 2000 |
| Eyestriage Services Limited | Health & social care | 2014 |
| Eyrdr LLP | | 2026 |
| EYZ Holding Ltd | Real estate | 2024 |
| Ezee Shop Ltd | Wholesale & retail | 2025 |
| Ezoogle UK Limited | Manufacturing | 2015 |
| Ezra Products Limited | Wholesale & retail | 2015 |
| Ezra Safety Group Limited | Public administration | 2018 |
| F & M Powder Coating Specialists Limited | Manufacturing | 2004 |
| F & N Financial Services Ltd | Financial services | 2011 |
| F a Dewhurst Ltd | Construction | 2021 |
| F M News Ltd | Wholesale & retail | 2025 |
| F N Drivers Ltd | Transport & logistics | 2022 |
| F O Ashford Ltd | Arts & recreation | 2024 |
| F O Basingstoke Ltd | Arts & recreation | 2024 |
| F O Blackburn Ltd | Arts & recreation | 2018 |
| F O Bradford Ltd | Arts & recreation | 2020 |
| F O Chester Ltd | Arts & recreation | 2024 |
| F O Doncaster Ltd | Arts & recreation | 2023 |
| F O E6 London Ltd | Wholesale & retail | 2023 |
| F O Group Ltd | Professional & scientific | 2023 |
| F O Liverpool Ltd | Arts & recreation | 2024 |
| F O Manchester Ltd | Arts & recreation | 2020 |
| F O Peterborough Ltd | Arts & recreation | 2022 |
| F O Rushden Lakes Ltd | Arts & recreation | 2024 |
| F O Sandwell Ltd | Arts & recreation | 2019 |
| F O Stoke Ltd | Arts & recreation | 2020 |
| F O Telford Ltd | Arts & recreation | 2024 |
| F O Vehicles Ltd | Wholesale & retail | 1998 |
| F O York Ltd | Arts & recreation | 2023 |
| F W Developments (Barnacre) Limited | Manufacturing | 2001 |
| F&A Building Solutions Ltd | Wholesale & retail | 2016 |
| F&H (NW) Properties Ltd | Real estate | 2017 |
| F&M Property Holdings Ltd | Financial services | 2021 |
| F&S Highgate Homes Ltd | Real estate | 2019 |
| F&S Professional Property Services Ltd | Households | 2019 |
| F&S Wholesale Limited | Wholesale & retail | 2016 |
| F&W Projects Ltd | Construction | 2025 |
| F&X Carpets (UK) Ltd | Wholesale & retail | 2015 |
| F. Bode & Sons Ltd | Manufacturing | 2001 |
| F. Heal Limited | Construction | 2002 |
| F. Hull & Sons Limited | Real estate | 1943 |
| F. Robinson Pallets Limited | Manufacturing | 2001 |
| F. Speak and Company (1938) Limited | Professional & scientific | 1938 |
| F.Brown Limited | Construction | 1962 |
| F.S.Millar Limited | Other services | 2011 |
| F.W.P. Ltd. | Professional & scientific | 1993 |