| Fab-Ex Express Couriers Limited | Transport & logistics | 2007 |
| Fabara Holdings Ltd | Financial services | 2022 |
| Fabbgifts Limited | Wholesale & retail | 2025 |
| Fabcare Ltd | Health & social care | 2020 |
| Fabdental Limited | Health & social care | 2016 |
| Fabe Home Security Ltd | Administrative & support | 2025 |
| Fabian the Trader Ltd | Wholesale & retail | 2025 |
| Fabiano Group Ltd | Wholesale & retail | 2020 |
| Fabio World Investment Ltd | Real estate | 2023 |
| Fabios World Ltd | Administrative & support | 2025 |
| Fabkad Global Limited | Information & communication | 2021 |
| Fabric Analytics Ltd | Information & communication | 2023 |
| Fabric Building Co Limited | Construction | 2026 |
| Fabric Limited CIC | Education | 2018 |
| Fabric Wonderland Ltd | Wholesale & retail | 2023 |
| Fabric World Ltd | Wholesale & retail | 2022 |
| Fabrication Engineering Ltd | Manufacturing | 2024 |
| Fabrication Technology UK Limited | Manufacturing | 2004 |
| Fabriccan Limited | Manufacturing | 2017 |
| Fabrify Ltd | Wholesale & retail | 2025 |
| Fabrik Consultants Ltd | Professional & scientific | 2025 |
| Fabrik Creations Limited | Information & communication | 2012 |
| Fabrikom Limited | Wholesale & retail | 2025 |
| Fabrionex Limited | Wholesale & retail | 2026 |
| Fabs Fashion Ltd | Wholesale & retail | 2021 |
| Fabs Property Ltd | Real estate | 2024 |
| Fabs United Company Ltd | Wholesale & retail | 2025 |
| Fabstics Limited | Professional & scientific | 2023 |
| Fabulace Beauty Ltd | Other services | 2012 |
| Fabuline Limited | Wholesale & retail | 1982 |
| Fabulous Auto Co Ltd | Wholesale & retail | 2021 |
| Fabulous Fashions by Michelle Limited | Wholesale & retail | 2019 |
| Fabulous Global Ltd | Administrative & support | 2025 |
| Fabulous Rooms & Balloons Limited | Wholesale & retail | 2021 |
| Fabwerx Ltd | Manufacturing | 2019 |
| FAC22 Limited | Information & communication | 2019 |
| FAC251 Limited | Hospitality | 2007 |
| FAC51 Holdings Limited | Real estate | 2026 |
| FAC51 Projects Ltd | Construction | 2021 |
| FAC51 the Hacienda (Manchester) Limited | Arts & recreation | 2009 |
| Facade Access Scaffolding Ltd | Construction | 2022 |
| Face & Body Treats Ltd | Wholesale & retail | 2018 |
| Face and Body Aesthetic Clinic Ltd | Other services | 2018 |
| Face Artist Clinic Ltd | Health & social care | 2026 |
| Face Base Aesthetics Ltd | Health & social care | 2024 |
| Face Placements Ltd | Administrative & support | 2007 |
| Face UK Limited | Extraterritorial | 2005 |
| FACE2FACE Couriers Ltd | Transport & logistics | 2017 |
| Facefirst Ltd | Other services | 2021 |
| Faceflair Hair and Beauty Product Limited | Wholesale & retail | 2026 |
| Facelab AI Limited | Information & communication | 2025 |
| Facepro Private Ltd | Wholesale & retail | 2019 |
| Faces by Faria Ltd | Other services | 2024 |
| Facets International Limited | Administrative & support | 2003 |
| Facilitate Coaching and Consultancy Limited | Professional & scientific | 2022 |
| Facilitated Management Limited | Administrative & support | 2024 |
| Facilitates Family Law Limited | Extraterritorial | 2016 |
| Facilities and Assets Management and Engineering College-Uk Ltd | Information & communication | 2024 |
| Facing Allegations in Contexts of Trust | Other services | 2019 |
| Facit UK Limited | Professional & scientific | 2007 |
| Facsbelenda Limited | Wholesale & retail | 2024 |
| Fact & Fiction Limited | Professional & scientific | 2013 |
| Factelier Ltd | Real estate | 2024 |
| Factomed Ltd | Administrative & support | 2019 |
| Factor Collections Limited | Other services | 2019 |
| Factoring and Invoice Discounting Limited | Financial services | 2012 |
| Factorx Ltd | Wholesale & retail | 2024 |
| Factory Academy Limited | Education | 2020 |
| Factory Avenue Ltd | Wholesale & retail | 2021 |
| Factory Coffee Ltd | Wholesale & retail | 2023 |
| Factory International Limited | Wholesale & retail | 2019 |
| Factory International Trading Services Limited | Other services | 2022 |
| Factory Investments Limited | Real estate | 2020 |
| Factory Street Residents Co Limited | Real estate | 2016 |
| Factory Vision Marketing Limited | Wholesale & retail | 2010 |
| Factotum Design Media & Innovation Ltd | Information & communication | 2011 |
| Factra Ltd | Administrative & support | 2017 |
| FAD Hub Ltd | Wholesale & retail | 2026 |
| FAD Model Management Ltd | Administrative & support | 2021 |
| Fade & Co UK Ltd | Other services | 2020 |
| Fade Zone Style Ltd | Other services | 2019 |
| Faded Store Ltd | Administrative & support | 2018 |
| Fades Agency Limited | Administrative & support | 2009 |
| Fadhl Saleh Investment Limited | Wholesale & retail | 2025 |
| Fadhl Taleb Thabit for Trading Ltd | Wholesale & retail | 2022 |
| Fadshakexpress Limited | Other services | 2019 |
| Fady for General Trading and Investment Ltd | Manufacturing | 2026 |
| Fael AL Khayrat Ltd | Other services | 2021 |
| Faelix Limited | Information & communication | 2006 |
| Faet Solutions Ltd | Construction | 2024 |
| Faeza & Seyam’S Tutoring Limited | Education | 2024 |
| FAF Investments Holding Ltd | Administrative & support | 2024 |
| FAH Builings SER Ltd | Construction | 2026 |
| Faha Medics Ltd | Health & social care | 2023 |
| Fahad Attar Ltd | Health & social care | 2010 |
| Fahad Raee Limited | Professional & scientific | 2025 |
| Fahd Al-Awlaqi and Partners Ltd | Other services | 2021 |
| Fahey Builders Limited | Construction | 2007 |
| Fahhr Hussain Limited | Health & social care | 2019 |
| Fahim Siddiqui Ltd | Wholesale & retail | 2025 |