| FB01 Ltd | Hospitality | 2026 |
| FB02 Ltd | Real estate | 2026 |
| Fbbh Limited | Hospitality | 2022 |
| FBH Coaching Ltd | Education | 2025 |
| FC Green Lanes Limited | Hospitality | 2024 |
| FC Hospitality Limited | Hospitality | 2025 |
| FC Padel Ltd | Arts & recreation | 2026 |
| FCG Limited | Financial services | 2023 |
| FCS Associates Ltd | Professional & scientific | 2004 |
| Fd-Trader Ltd | Wholesale & retail | 2025 |
| FDA Hospitality Services Ltd | Administrative & support | 2025 |
| FDH Electronics UK Limited | Wholesale & retail | 2013 |
| Fdtc Assets Limited | Health & social care | 2016 |
| FDW Holdings Limited | Professional & scientific | 2019 |
| Fearnought Club Ltd | Extraterritorial | 2024 |
| Fearns Mortgages Ltd | Financial services | 2020 |
| Feast Brewery Limited | Health & social care | 2019 |
| Feather Python Ltd. | Information & communication | 2003 |
| Feathers Winsford Limited | Hospitality | 2019 |
| Featherstone Homes Ltd | Construction | 2023 |
| Features Beauty Limited | Other services | 2013 |
| Febrock Limited | Administrative & support | 1993 |
| Febz IT Solutions Limited | Transport & logistics | 2015 |
| Feddsp Ltd | Information & communication | 2025 |
| FEE Sabilillah SY Limited | Health & social care | 2025 |
| FEE Simple Estates Ltd | Real estate | 2019 |
| Feebuilder Limited | Administrative & support | 2013 |
| Feed & Food Affairs UK Ltd | Transport & logistics | 2019 |
| Feed Filter Food Exim Limited | Wholesale & retail | 2026 |
| Feelgood Hospitality Limited | Professional & scientific | 2020 |
| Fegacode Ltd | Wholesale & retail | 2023 |
| FEI Deco Limited | Construction | 2020 |
| Felicity Jackson Limited | Other services | 2008 |
| Felicity White School of Dance Limited | Arts & recreation | 2016 |
| Felix Analysts Limited | Administrative & support | 2023 |
| Felix Trading Ltd | Wholesale & retail | 2022 |
| Felix Wholesale Ltd | Wholesale & retail | 2011 |
| Fella Engineering and Electrical Services Limited | Professional & scientific | 2026 |
| Fellaby Limited | Professional & scientific | 2023 |
| Felyora Limited | Wholesale & retail | 2025 |
| Female Energy Records Limited | Arts & recreation | 2014 |
| Femco FF Ltd | Health & social care | 2025 |
| Feme Trading Ltd | Wholesale & retail | 2021 |
| Fence-Aid Limited | Wholesale & retail | 2012 |
| Fenelon Ltd | Professional & scientific | 2025 |
| Fengchun Limited | Hospitality | 2024 |
| Feni Rental Ltd | Wholesale & retail | 2026 |
| Fenix Real Estate Ltd | Real estate | 2025 |
| Fenn Land Holdings Ltd | Real estate | 2021 |
| Fent Medical Ltd | Health & social care | 2024 |
| Fenti Limited | Professional & scientific | 2010 |
| Fenton Butler Limited | Information & communication | 2024 |
| Fenton Hulme Properties Ltd | Real estate | 2017 |
| Feraj Ltd | Hospitality | 2024 |
| Feral Express Couriers Ltd | Transport & logistics | 2025 |
| Ferhati Ltd | Wholesale & retail | 2022 |
| Ferli Arts Ltd | Arts & recreation | 2024 |
| Fermor Properties Limited | Real estate | 2006 |
| Fern Management Limited | Real estate | 2009 |
| Fern Road Tenants Limited | Real estate | 2021 |
| Fernash Limited | Wholesale & retail | 2025 |
| Fernco Holdings Limited | Financial services | 2017 |
| Fernie Greaves Holland Limited | Construction | 2016 |
| Fernite Engineering Limited | Manufacturing | 2024 |
| Fernite of Sheffield Limited | Manufacturing | 1995 |
| Ferntex Limited | Professional & scientific | 2023 |
| Fernwood Health Care Limited | Health & social care | 2023 |
| Feron Group Limited | Water & waste | 2026 |
| Ferox Engineering Ltd | Professional & scientific | 2025 |
| Ferrad Ltd | Wholesale & retail | 2026 |
| Ferrari Developments Limited | Real estate | 2006 |
| Ferrio Limited | Information & communication | 2021 |
| Ferrofacta UK Ltd | Manufacturing | 2020 |
| Ferrometis Ltd | Professional & scientific | 2026 |
| Ferrow Ltd | Administrative & support | 2021 |
| Feru Construction Limited | Construction | 2020 |
| Festive India Ltd | Wholesale & retail | 2025 |
| Festivities Ltd | Arts & recreation | 2021 |
| Fetch NOW Ltd | Wholesale & retail | 2025 |
| FF Sheffield Ltd | Real estate | 2015 |
| FF Synca Ltd | Information & communication | 2025 |
| Ffdp Limited | Administrative & support | 2009 |
| Ffds Consultants Ltd | Construction | 2023 |
| FFG Enterprises Ltd | Administrative & support | 2023 |
| FFR Flat Finish Render Limited | Construction | 2022 |
| Ffstival Ltd | Arts & recreation | 2023 |
| FFY Roofing Ltd | Construction | 2025 |
| Fgia Manufacturing and Investment Ltd | Other services | 2021 |
| Fgjmr Limited | Administrative & support | 2011 |
| FGW Brewery Limited | Manufacturing | 2011 |
| FH Facilities Management Ltd | Construction | 2018 |
| FHA Automotive Ltd | Wholesale & retail | 2026 |
| Fhaus Ltd | Real estate | 2022 |
| FHF Halfway Limited | Arts & recreation | 2015 |
| FHF Hillsborough Limited | Arts & recreation | 2012 |
| FHF Holdings Group Limited | Administrative & support | 2020 |
| FHF Millhouses Limited | Arts & recreation | 2015 |
| FHH Developments Limited | Extraterritorial | 2015 |
| FHP Global Resources Ltd | Administrative & support | 2019 |
| Fhpp Limited | Professional & scientific | 2009 |