| Fenelon Tank Repairs Ltd | Professional & scientific | 2023 |
| Fennelly Investments Limited | Information & communication | 2015 |
| Fennelly Properties Limited | Real estate | 2022 |
| Fenrir Ltd | Professional & scientific | 2015 |
| Fenwood Management Ltd | Health & social care | 2023 |
| Feroze Limited | Manufacturing | 2020 |
| Fhdc Limited | Health & social care | 2021 |
| Fibre & Data Ltd | Manufacturing | 2025 |
| Field Rich Recruitment Ltd | Administrative & support | 2026 |
| Fieldmile Properties Limited | Real estate | 1999 |
| Filling in Limited | Health & social care | 2022 |
| Fillmore Recruitment Ltd | Administrative & support | 2018 |
| Fimark Limited | Manufacturing | 1997 |
| Find Your Limited | Information & communication | 2024 |
| Findabarristeraccess. COM Ltd | Public administration | 2014 |
| Finlays Garage Services Ltd | Wholesale & retail | 2020 |
| Finney Lane Dental Practice Ltd | Health & social care | 2026 |
| Firefly Publishing Limited | Information & communication | 2017 |
| First Class Turkish Hairdresser Limited | Other services | 2024 |
| FIRST4MATHS Ltd | Education | 2011 |
| Fitzstar Engineering Ltd | Manufacturing | 2018 |
| Fitzstar Properties Ltd | Real estate | 2021 |
| Fitzstar Property Services Ltd | Construction | 2021 |
| Flamingo Studio Limited | Health & social care | 2020 |
| FLB Developments Ltd | Hospitality | 2012 |
| Fleetmarque Limited | Wholesale & retail | 2015 |
| Fleetwood Caravans Ltd | Manufacturing | 2016 |
| Flexible Manufacturing Systems Limited | Real estate | 1983 |
| Flint Subsea Limited | Professional & scientific | 2013 |
| FLK Flooring Solutions Ltd | Construction | 2025 |
| Flossferatu Ltd | Health & social care | 2024 |
| Floxy UGO Limited | Health & social care | 2018 |
| Fluid Care Ltd | Manufacturing | 2019 |
| Fluin Engineering Ltd | Construction | 2025 |
| FLY High 719 Ltd | Health & social care | 2025 |
| FLY High Web Ltd | Administrative & support | 2025 |
| Flynn's Port in the Storm Ltd | Health & social care | 2021 |
| Flynn’S Trading Group Ltd | Professional & scientific | 2025 |
| Foregate Properties Ltd | Real estate | 2025 |
| Forever Muse Limited | Wholesale & retail | 2026 |
| Forged Iron Strength and Fitness Ltd | Education | 2026 |
| Formula Group Limited | Financial services | 2023 |
| Formula International (Holdings) Limited | Financial services | 2023 |
| Formula International Limited | Administrative & support | 1996 |
| Formula Properties (NW) Limited | Real estate | 2020 |
| Formula Tanker Rental Limited | Administrative & support | 2013 |
| FORTY7 Ronin Limited | Real estate | 2022 |
| Forvan Holdings Limited | Professional & scientific | 2003 |
| Forward Builders Supplies (Holdings) Limited | Financial services | 2020 |
| Fountain Rentals Limited | Administrative & support | 2009 |
| Fountainhead Commercial Properties Limited | Real estate | 2026 |
| Foxes Commercial Lettings Ltd | Real estate | 2025 |
| Foxglove Solutions Limited | Professional & scientific | 2013 |
| FR14 Limited | Wholesale & retail | 2014 |
| Framice Limited | Health & social care | 2023 |
| Frampton Howarth Properties Ltd | Construction | 2020 |
| Francis RAE Swim School LLP | | 2013 |
| Frank Field Education Trust | Education | 2015 |
| Franklin James Entertainments Ltd | Extraterritorial | 2020 |
| Fraser Pugh Motor Company Ltd | Wholesale & retail | 2023 |
| Fraser Survey & Engineering Ltd | Construction | 2017 |
| Frederick Howard Opticians (Wallasey) Ltd | Wholesale & retail | 2003 |
| Freeworld 247 Ltd | Real estate | 2025 |
| Fresh Local & Wild Limited | Hospitality | 2020 |
| Fresh Therapy Ltd | Health & social care | 2025 |
| Freshfield Real Estate Limited | Real estate | 2018 |
| Frithmere Limited | Professional & scientific | 1989 |
| Frol Ltd | Health & social care | 2026 |
| FRP Training Ltd | Administrative & support | 2020 |
| FRY 4 U Limited | Hospitality | 2025 |
| FSF Support Limited | Other services | 2022 |
| FTG Events Limited | Education | 2025 |
| Full Moon Investment Limited | Real estate | 2022 |
| FUN 2 Code Limited | Education | 2021 |
| FUN 2 Swim Limited | Education | 2011 |
| Furbank Dental Ltd | Health & social care | 2023 |
| Fuse Project Group Limited | Professional & scientific | 2022 |
| Future Past Ltd | Real estate | 2019 |
| Futuristic Investments Ltd | Real estate | 2016 |
| G Collyer Ltd | Health & social care | 2017 |
| G.Vaughan Financial Services Limited | Financial services | 2011 |
| G3 Insure Limited | Financial services | 2015 |
| Gabriel Installations Ltd | Construction | 2025 |
| Gaia School of Natural Health Ltd | Education | 2025 |
| Galactic Property Ltd | Real estate | 2025 |
| Galleg TM Ltd | Administrative & support | 2017 |
| Gararock Limited | Financial services | 2018 |
| Gareth Wallis Financial Solutions Ltd | Financial services | 2019 |
| Garyluntdentistry Limited | Health & social care | 2021 |
| Gbolab Limited | Health & social care | 2021 |
| GCA Lettings Ltd | Real estate | 2026 |
| GCS Store Ltd | Wholesale & retail | 2026 |
| Gear UP Properties Limited | Real estate | 2023 |
| Gearguard Ltd | Manufacturing | 2025 |
| Genial Drinks Ltd | Wholesale & retail | 2024 |
| Genomix Power Limited | Information & communication | 2023 |
| Gentle Family Dental Care Limited | Health & social care | 2010 |
| Geofidel Executive Education-London UK Limited | Administrative & support | 2024 |
| Geremix Ltd | Health & social care | 2024 |
| Germinare Ltd | Professional & scientific | 2024 |