| Feel Good Futures Training Limited | Education | 2020 |
| Feel Safe Solutions Limited | Administrative & support | 2011 |
| Feel the Heat Ltd | Construction | 2020 |
| Feeney Woodlands Ltd | Agriculture & fishing | 2023 |
| Feesio Ltd. | Other services | 2026 |
| FEF Transport Ltd | Transport & logistics | 2018 |
| Felici Matrimoni Ltd | Hospitality | 2025 |
| Felicity Estates Ltd | Real estate | 2024 |
| Felicity Life Limited | Administrative & support | 2025 |
| Felicity Rooms Ltd | Hospitality | 2020 |
| Felicity’S Care Limited | Health & social care | 2025 |
| Felipe Tadd Limited | Manufacturing | 2020 |
| Felisafe Ltd | Construction | 2017 |
| Felix Consultancy Services Limited | Administrative & support | 2018 |
| Fellgate Properties (Minerva Court) Limited | Real estate | 2002 |
| Fellowkitty | Other services | 2026 |
| Felnaqa Limited | Health & social care | 2025 |
| Female Sports Group Limited | Arts & recreation | 2013 |
| Feminine Earth Nature Ltd | Health & social care | 2025 |
| Femme Fatale Entertainment Ltd. | Arts & recreation | 2018 |
| Femss Limited | Wholesale & retail | 2021 |
| Fence Master (NW) Ltd | Manufacturing | 2021 |
| Fenchurch Property Limited | Real estate | 2025 |
| Fend Safety Ltd | Manufacturing | 2026 |
| Fenero Trade Ltd | Wholesale & retail | 2024 |
| Fenestration Systems Limited | Construction | 2008 |
| Fengsing Limited | Hospitality | 2014 |
| Feniks Transport Ltd. | Transport & logistics | 2016 |
| Fenix Partnership Ltd | Real estate | 2024 |
| Fenrail Limited | Construction | 2019 |
| Fenreez Ltd | Wholesale & retail | 2025 |
| Fenrir Logistics (UK) Ltd | Transport & logistics | 2018 |
| Fenti Productions Ltd | Information & communication | 2024 |
| Fenton Solutions Limited | Real estate | 2012 |
| Fenwall Investments Limited | Real estate | 1965 |
| Fenwick Barber Ltd | Other services | 2022 |
| Fenwick Hotel Ltd | Financial services | 2024 |
| Fenwick L2 Limited | Hospitality | 2024 |
| Fenwick Sunrise Hotel Ltd | Hospitality | 2022 |
| Fer-De-Lance Limited | Other services | 2010 |
| Feranmi Limited | Arts & recreation | 2024 |
| Fergiani Ltd | Health & social care | 2025 |
| Fergie Ltd | Professional & scientific | 2025 |
| Ferguson Dean Limited | Other services | 2020 |
| Ferguson Property Group Limited | Real estate | 2016 |
| Fermayo Healthcare Ltd | Health & social care | 2025 |
| Fernandez Cosmetics Ltd | Other services | 2018 |
| Fernando Motor Accident Repairs and Claims Management Ltd | Wholesale & retail | 2024 |
| Fernando Motors Ltd | Wholesale & retail | 2024 |
| Fernhawk Property Management Limited | Households | 1984 |
| Fernhill Motor Services North West Ltd | Wholesale & retail | 2009 |
| Fernhill York Limited | Financial services | 2025 |
| Fernhurst Consultancy Ltd | Professional & scientific | 2021 |
| Fernland Engineering (Liverpool) Ltd | Manufacturing | 2004 |
| Fernwood Estates Limited | Real estate | 2022 |
| Fernwood Hall New Management Company Limited | Administrative & support | 2011 |
| Ferrier Pearce Ltd | Professional & scientific | 2020 |
| Ferris Hayward Limited | Wholesale & retail | 1991 |
| Ferrus Power Limited | Manufacturing | 1991 |
| Ferry Stone (NW) Ltd | Manufacturing | 2025 |
| Ferveo Limited | Real estate | 2008 |
| Feryou Ltd | Wholesale & retail | 2023 |
| Festival Properties Limited | Real estate | 2014 |
| Festive Minis Ltd | Other services | 2020 |
| Festivity Events Ltd | Administrative & support | 2025 |
| Festus Ltd | Administrative & support | 2014 |
| Fetch My Car Limited | Transport & logistics | 2020 |
| FF Business Builders Ltd | Information & communication | 2013 |
| Ffab Productions Limited | Information & communication | 2003 |
| FFD Brothers Limited | Real estate | 2014 |
| FFG Energy Centres Ltd | Energy | 2021 |
| Ffowndri | Wholesale & retail | 2018 |
| FFR Property Ltd | Real estate | 2026 |
| Ffrens Ltd | Hospitality | 2026 |
| FFT Motors Ltd | Wholesale & retail | 2024 |
| FGB Real Estate Limited | Real estate | 2016 |
| FGC Rigging Ltd | Professional & scientific | 2014 |
| FGJ Advisory Ltd | Professional & scientific | 2025 |
| FGS GAS Services Limited | Construction | 2013 |
| FH Garage Limited | Administrative & support | 2025 |
| FH Tour Management Ltd | Arts & recreation | 2026 |
| FHJ Group Limited | Wholesale & retail | 2024 |
| FHQ Properties Ltd | Real estate | 2025 |
| FHS Remote Ltd | Health & social care | 2025 |
| FHT (Transport) Ltd | Transport & logistics | 2022 |
| FIA Construction Limited | Construction | 2015 |
| FIA Yoga Ltd | Wholesale & retail | 2025 |
| Fian Limited | Health & social care | 2025 |
| Fibaform Holdings Limited | Administrative & support | 2022 |
| Fibaform Products Limited | Construction | 1997 |
| Fibre Cable Limited | Construction | 2025 |
| Fibre Fresh Ltd | Administrative & support | 2025 |
| Fibre Nova Ltd | Information & communication | 2023 |
| Fibrefocus Ltd | Information & communication | 2025 |
| Fibrelinx Ltd | Construction | 2021 |
| FIBREOPTICAL2023LTD Ltd | Manufacturing | 2025 |
| Fibreray Build Ltd | Information & communication | 2022 |
| Fibreray Group Ltd | Financial services | 2023 |
| Fibreray Managed Services Ltd | Information & communication | 2022 |
| Fibreray Projects Ltd | Information & communication | 2022 |