| Evergreen Organics Limited | Wholesale & retail | 2017 |
| Evershine Cleaning Services Ltd | Administrative & support | 2022 |
| Everybody Loves Music CIC | Education | 2015 |
| Everybody Loves Music Group CIC | Education | 2026 |
| Everyone's a Winner Ltd | Information & communication | 2003 |
| EVP Properties Limited | Construction | 2022 |
| EWL Limited | Professional & scientific | 2025 |
| Exicom Limited | Professional & scientific | 2003 |
| Exonia Limited | Professional & scientific | 2010 |
| Experio English Limited | Administrative & support | 2000 |
| Experio Study Abroad Limited | Administrative & support | 2012 |
| Experio Summer Limited | Administrative & support | 2012 |
| Experio Ventures Limited | Education | 2024 |
| Expert Cars Ltd | Wholesale & retail | 2022 |
| F P S Plastering Limited | Construction | 2013 |
| F.B. Training Solutions Ltd. | Professional & scientific | 2002 |
| F.I.S. Services Ltd | Construction | 2020 |
| Fable Growth Ltd | Professional & scientific | 2025 |
| Fable Homes Limited | Construction | 2018 |
| Facilities Management Group 20 Ltd | Professional & scientific | 2025 |
| FAE Elite Ltd | Education | 2025 |
| Faith Ibiza Ltd | Administrative & support | 2017 |
| Falcon Enterprises Ltd | Information & communication | 2018 |
| Famio Ltd | Transport & logistics | 2025 |
| Farm Place Management Limited | Real estate | 2009 |
| Farmploy Ltd | Agriculture & fishing | 2025 |
| Farra Medical Services Limited | Health & social care | 2025 |
| Fastrac Interiors Limited | Construction | 1998 |
| Faye & Fraser Limited | Professional & scientific | 2010 |
| Feature Factory Limited | Information & communication | 2024 |
| Feelproductive Ltd | Information & communication | 2022 |
| Femores Ltd. | Professional & scientific | 2018 |
| Feral Group Ltd | Wholesale & retail | 2008 |
| Fernova Ltd | Information & communication | 2019 |
| Fifty Plus Media Limited | Professional & scientific | 2013 |
| Film & TV Veterinary Services LLP | | 2022 |
| Finem Chapmorem Ltd | Real estate | 2019 |
| Finepoint Lettings Ltd | Real estate | 2022 |
| Finepoint Refurbishment Limited | Construction | 2016 |
| Finleah Limited | Professional & scientific | 2016 |
| Finsbury House Associates Limited | Administrative & support | 2014 |
| Fire & Facilities Consulting Ltd | Administrative & support | 2025 |
| Fire Systems Consultancy Limited | Administrative & support | 2009 |
| Firebolt Consulting Ltd | Professional & scientific | 2018 |
| First 4 Paving Ltd | Construction | 2020 |
| First Class Construction & Glazing Ltd | Construction | 2024 |
| First FIX Scaffolding Solutions Ltd | Construction | 2019 |
| First Page Marketing Ltd | Professional & scientific | 2020 |
| First Scope Consultancy Limited | Administrative & support | 2025 |
| Firstfloor Ltd | Professional & scientific | 2007 |
| Fitout Design Services Limited | Professional & scientific | 2013 |
| FJP Consultancy Limited | Administrative & support | 2024 |
| Flamexpert Ltd | Construction | 2017 |
| Flashing Blue Property London Limited | Real estate | 2016 |
| Fleet Heating and Pipework Engineers Limited | Construction | 2009 |
| Fleko Ltd | Administrative & support | 2023 |
| Fletchers (Trees) Limited | Agriculture & fishing | 2001 |
| Flex HR Ltd | Professional & scientific | 2020 |
| Floors on Trend Limited | Construction | 2010 |
| Florence & Godwin Holdings Ltd | Real estate | 2021 |
| Floridezza Ltd | Wholesale & retail | 2019 |
| Florin&Partners Ltd | Wholesale & retail | 2019 |
| Florocla Ltd | Financial services | 2019 |
| Flying Eagle Catering Limited | Hospitality | 2018 |
| FM1 Homes Limited | Real estate | 2022 |
| FM2 Homes Limited | Real estate | 2023 |
| FM3 Homes Limited | Real estate | 2023 |
| Foodlane Ltd | Hospitality | 2019 |
| Foody Highgate Ltd | Hospitality | 2024 |
| Forensic Psychology Clinic Ltd | Professional & scientific | 2024 |
| Forest Property (London) Limited | Construction | 2004 |
| Forest View Enterprise Limited | Information & communication | 2024 |
| Form Film & Media Limited | Information & communication | 2026 |
| Form Media Group Limited | Information & communication | 2026 |
| Form Productions Ltd | Information & communication | 2024 |
| Formations Wise Ltd | Administrative & support | 2023 |
| Forstep Limited | Real estate | 2007 |
| Forte Dance & Performing Arts Ltd | Extraterritorial | 2022 |
| Forte Lets Party Limited | Arts & recreation | 2023 |
| Forte Merchandise Limited | Wholesale & retail | 2023 |
| Forte Performance Company Limited | Arts & recreation | 2023 |
| Forward Thinking Education Ltd | Transport & logistics | 2013 |
| Foundation Property Services Limited | Construction | 2002 |
| Four Acres Estate Limited | Administrative & support | 2016 |
| Four Twelve Limited | Administrative & support | 2014 |
| Fowell Medical Limited | Professional & scientific | 2019 |
| Foxglove Services Limited | Professional & scientific | 2025 |
| Fractured Reality Ltd | Information & communication | 2014 |
| Fraser Edwards Recruitment Limited | Administrative & support | 2020 |
| Fratelli Camisa Ltd | Wholesale & retail | 2018 |
| Free Mind Through Movement Ltd | Arts & recreation | 2026 |
| Free Runner NET Limited | Information & communication | 2009 |
| French & Day Ltd | Wholesale & retail | 2020 |
| Fringe Electronics Limited | Manufacturing | 1978 |
| Front Edge Software Ltd. | Information & communication | 2014 |
| FTK Sounds Limited | Information & communication | 2023 |
| Fullers Commercial Limited | Construction | 2025 |
| Furgus Ltd | Information & communication | 2019 |
| Fused Electric Services Ltd | Construction | 2016 |
| Fusetec Electrical Ltd | Construction | 2020 |