| Extropy Trading Limited | London | 2022 |
| Extrudaseal Limited | Leicester | 2011 |
| Extruded Fabrics Limited | Blackburn | 1969 |
| Exvilorx for Public Supplies Ltd | Doncaster | 2026 |
| Exxtor Shipping Services Limited | London | 1953 |
| EY Corporate Secretaries Limited | London | 2019 |
| EY Global Services 2 Limited | London | 2022 |
| EY Limited | Saffron Walden | 2020 |
| EYA Trading Company Ltd | London | 2013 |
| Eyapsl 2 Limited | London | 2022 |
| Eycd Limited | London | 2018 |
| Eydon Investments Limited | Bedford | 1964 |
| EYE Arte Ltd | Chesham | 2020 |
| EYE Catching Limited | Bridgend | 2004 |
| EYE Heart Ltd | Swanley | 2023 |
| EYE Love YOU Limited | Knutsford | 2025 |
| EYE of Horus Ltd | Harlow | 2023 |
| EYE Opener Opticians Limited | Belfast | 2006 |
| EYE PEA Ltd. | Godalming | 2012 |
| EYE Sense Optical Ltd | Bolton | 2024 |
| EYE Show Limited | Diss | 1999 |
| EYE to EYE Care Limited | Stanmore | 2010 |
| EYE to Pencil Ltd | Fleet | 2021 |
| Eyeah Limited | Beckenham | 2013 |
| Eyebrook Feeds Limited | Market Harborough | 2002 |
| Eyelado Ltd | London | 2024 |
| Eyelash Glue Limited | London | 1998 |
| Eyelink Limited | Huntingdon | 1989 |
| Eyelove Vintage Ltd | Aldermaston | 2021 |
| Eyes Wide Open Design Consulting Limited | London | 2017 |
| Eyesl 2 Limited | London | 2022 |
| Eyesonsupplies Ltd | Enfield | 2024 |
| Eyesource Ltd | Glasgow | 2016 |
| Eyevisualise Limited | St. Albans | 2013 |
| Eyms BUS & Coach Training Limited | Newcastle Upon Tyne | 1987 |
| Eynesbury Group Ltd | St Neots | 2024 |
| Eynesbury Road Sweepers Ltd | St. Neots | 2024 |
| Eynesbury Transport Ltd | St. Neots | 2024 |
| Eynsford House Limited | Milton Keynes | 2012 |
| Eynsham Park Limited | Witney | 1990 |
| Eynuor Limited | London | 2016 |
| Eyre & Elliston Group Services Limited | Chesterfield | 1975 |
| EZ Cover Ltd | Salisbury | 2018 |
| EZ Investment Management Ltd | Edinburgh | 2012 |
| EZ Riders Limited | Chelmsford | 2012 |
| Ez-Plans Limited | Dover | 2023 |
| Ezar Ltd | Sheffield | 2024 |
| EZE Joinery Limited | Townstall | 2012 |
| Ezee Claims Ltd | Glasgow | 2017 |
| Ezee Living Limited | Takeley | 2017 |
| Ezeesport Limited | Morden | 2023 |
| EZEGO1 Limited | London | 2024 |
| Ezen Network Limited | London | 2019 |
| Ezenwanyiimmirrioma Ltd | Bristol | 2025 |
| Ezer Ltd | London | 2005 |
| Ezhi Trading Co., Ltd | Beckenham | 2014 |
| EZI Methods Ltd | Petersfield | 2025 |
| Ezia Cleaning Company Ltd | Abertillery | 2024 |
| Ezra & Macquarie Limited | Hornchurch | 2011 |
| EZY Decking Limited | Bradford | 2023 |
| EZY Homes Ltd | Manchester | 2024 |
| Ezyshops.No Limited | London | 2023 |
| F & D Management Company Limited | Portstewart | 2001 |
| F & G Commercials (Huddersfield) Ltd | Loudwater, High Wycombe | 1994 |
| F & G Commercials (Oldham) Limited | High Wycombe | 2009 |
| F & G Commercials Limited | High Wycombe | 1998 |
| F & M (Investment Holdings) Limited | Orpington | 2015 |
| F & N Lighting Limited | Sidcup | 2015 |
| F & S Textiles Limited | Oldham | 2008 |
| F & T Property Investment Ltd | London | 1999 |
| F a S Security Limited | Carmarthen | 2007 |
| F Bilby Consulting Ltd | Warwick | 2024 |
| F C C Electrical Wholesalers Limited | Nottingham | 2013 |
| F C Gardner & Co Ltd | Wickford | 2012 |
| F C Walker Limited | Norwich | 2014 |
| F Calder Contracting Ltd | Pitlochry | 2024 |
| F Denli Consultancy Ltd | Lytham St.Annes | 2024 |
| F Docx Ltd | London | 2024 |
| F Dooley & SON Limited | Nottingham | 2002 |
| F G Barnes (Maidstone) Limited | Guildford | 2002 |
| F I E M Limited | Bedford | 2023 |
| F L Hedley & Co Limited | Crook | 2014 |
| F L Mccullough & Sons Limited | Newtownabbey | 1944 |
| F Ltd | Cambridge | 2021 |
| F M Electronics Ltd | Mitcheldean | 2021 |
| F Noble Services Limited | Lymington | 2012 |
| F Parkes Associates Limited | London | 2000 |
| F R P Solutions Limited | Peterborough | 2006 |
| F S Bell Limited | Wigton | 2010 |
| F S Eurotransport Limited | Cardiff | 2014 |
| F Sullivan Ltd | Belper | 2011 |
| F the Bookkeeper Ltd | Ilford | 2024 |
| F W Holes & SON Limited | Towcester | 2013 |
| F W Thornton & SON Limited | Telford | 1997 |
| F Y Wong Limited | Glasgow | 2021 |
| F&A Real Estate Ltd | London | 2025 |
| F&C Private Equity Ltd | Edinburgh | 2025 |
| F&F Industrial Co., Limited | Beckenham | 2011 |
| F&F Metallic Construction UK Ltd | London | 2016 |
| F&F Power Equipment PVT Ltd | Beckenham | 2019 |