| Epsom & Ewell Colts Football Club Limited | Arts & recreation | 2021 |
| Eptech Digital Ltd | Information & communication | 2026 |
| Equilibrium Prime Limited | Manufacturing | 2024 |
| ER Eventures Ltd | Administrative & support | 2018 |
| Esgl Limited | Real estate | 2002 |
| Eson Salon Services Ltd | Wholesale & retail | 2018 |
| Essem (London) Limited | Education | 2000 |
| Established Mgmt Limited | Professional & scientific | 2021 |
| Eternal Flame Limited | Real estate | 2019 |
| Eternal Optimist Limited | Professional & scientific | 2006 |
| Ether Property Ltd | Real estate | 2017 |
| Euroconsult International Limited | Information & communication | 2005 |
| Event Directions Ltd | Other services | 2008 |
| Events Centre Ltd | Administrative & support | 2024 |
| Eventsafe.Io Ltd | Information & communication | 2026 |
| Evergarden Properties Ltd | Real estate | 2018 |
| Everstead Consulting Ltd | Information & communication | 2025 |
| Everyday Building Solutions (London) Ltd | Construction | 2023 |
| Evgi Ltd | Extraterritorial | 2024 |
| Exceder Physio Limited | Health & social care | 2012 |
| Excelplus Tutoring Limited | Education | 2024 |
| EXCISE4ERP Ltd | Information & communication | 2025 |
| Expert Advice Limited | Professional & scientific | 2000 |
| Exponential Property Limited | Extraterritorial | 2019 |
| Express Boilers Ltd | Construction | 2010 |
| Fabricut Limited | Wholesale & retail | 2024 |
| Fabricut London Limited | Manufacturing | 1995 |
| FACTORY2DOOR Limited | Wholesale & retail | 2023 |
| Faerie Story Limited | Wholesale & retail | 2020 |
| Fairholme Consulting Services Ltd | Professional & scientific | 2007 |
| Fallon Sherrock Dart Promotions Limited | Arts & recreation | 2019 |
| Family and Friends Co. Ltd | Wholesale & retail | 2021 |
| FAR Beyond Ltd | Administrative & support | 2019 |
| Farrell Audio Productions Limited | Manufacturing | 2018 |
| Farrens Hair & Beauty Ltd | Extraterritorial | 2021 |
| Fasmire Ltd | Manufacturing | 2023 |
| Fastdeer Bloomsbury Ltd | Hospitality | 2026 |
| Fastdeer Ltd | Wholesale & retail | 2024 |
| FAT Cat Leisure Hampton Limited | Hospitality | 2010 |
| FB Villas Residents Ltd | Households | 2018 |
| Felix Chow & Co. Ltd | Construction | 2024 |
| Fenton Yard Ltd | Wholesale & retail | 2016 |
| Feral Kids Store Ltd | Wholesale & retail | 2026 |
| Fermaine Court RTM Company Limited | Households | 2007 |
| Fezza Management Ltd | Real estate | 2019 |
| Fifth Frame Limited | Information & communication | 2010 |
| Film Depot Ltd | Administrative & support | 2018 |
| Final Pattern Ltd | Administrative & support | 2025 |
| Finfree Property Ltd | Real estate | 2018 |
| Finikia Ltd | Professional & scientific | 2007 |
| Finpro Associates Ltd | Professional & scientific | 2019 |
| Fire Dragon Investments Ltd | Financial services | 2016 |
| Fire Extinguishing Trades Association | Other services | 1919 |
| Fire Industry Association | Other services | 2006 |
| Firefly Lighting Design Ltd | Professional & scientific | 2007 |
| Firsholm Close Freehold Limited | Real estate | 2024 |
| First Thames Roofing Ltd | Construction | 2025 |
| Fish & Co Limited | Professional & scientific | 2012 |
| Fish & Co Properties Limited | Real estate | 2023 |
| Fishdance Limited | Agriculture & fishing | 2013 |
| Fitlistings Ltd | Extraterritorial | 2021 |
| Flexible Data Solutions Ltd | Information & communication | 2022 |
| Floral Studio by Raimonda Ltd | Wholesale & retail | 2026 |
| Flori Construction London Ltd | Construction | 2021 |
| Flow Consultancy Ltd | Professional & scientific | 2022 |
| FM JV Ltd | Other services | 2019 |
| Focal Investments Ltd | Extraterritorial | 2018 |
| Focus Property Ltd | Extraterritorial | 2017 |
| Fontmell Cottage Ltd | Construction | 2010 |
| Forest Bay Investments Ltd | Real estate | 2019 |
| Forsa Developments Limited | Real estate | 2019 |
| Fortis Financial Ltd | Financial services | 2009 |
| Fortis Mondial UK Ltd | Professional & scientific | 2022 |
| Fortress Plumbing Ltd | Construction | 2018 |
| Four Star Capital Corporation | | 1991 |
| Fourfiveone Limited | Extraterritorial | 2002 |
| Fourley (UK) Ltd | Hospitality | 2011 |
| Foxcrown Limited | Construction | 1987 |
| Foxwise Consulting Ltd | Professional & scientific | 2025 |
| Fpfx Services Ltd | Other services | 2014 |
| Franbie & Co Ltd | Real estate | 2018 |
| Fraoch Investments Limited | Extraterritorial | 2009 |
| Freedom Inc 1 Ltd | Real estate | 2019 |
| Frejo Kids Limited | Education | 2016 |
| Fresh Food Hampton Ltd | Hospitality | 2025 |
| Freshname NO. 388 Limited | Real estate | 2008 |
| Frgl Limited | Real estate | 2002 |
| Friends of the Lady Eleanor Holles School(The) | Education | 1960 |
| Fuel Personal Training Ltd | Arts & recreation | 2018 |
| Fuel Training Limited | Arts & recreation | 2014 |
| Full Frame Media Ltd | Information & communication | 2019 |
| Furuichoi & Co Limited | Professional & scientific | 2014 |
| Fusion Staffing Ltd | Administrative & support | 2024 |
| Future Cognition Ltd | Information & communication | 2015 |
| Future CUT Productions Limited | Information & communication | 2006 |
| Future CUT Songs Ltd | Information & communication | 2010 |
| Future Frameworks Ltd | Professional & scientific | 2021 |
| Futurealities Limited | Extraterritorial | 2009 |
| Fwtf Ltd | Information & communication | 2022 |
| G & T OC Ltd | Hospitality | 2010 |