| Flourishstar Ltd | Wholesale & retail | 2025 |
| Flow Logistics Ltd | Transport & logistics | 2019 |
| Flow Screed Services (Midlands) Ltd | Construction | 2023 |
| Flow Screed Services Ltd | Construction | 2023 |
| Flowbird Growth Academy Ltd | Education | 2024 |
| Flowbird Ltd | Information & communication | 2013 |
| Flowers Consulting Limited | Professional & scientific | 2012 |
| FLS Work UK Ltd | Construction | 2020 |
| FLY a Kite Ltd | Professional & scientific | 2024 |
| FLY the Nest Limited | Real estate | 2026 |
| FLY With ME Air Ltd | Wholesale & retail | 2015 |
| Flymode Property Ltd | Hospitality | 2017 |
| Flywheel Marketing Ltd | Administrative & support | 2022 |
| FM Social Assessment Limited | Health & social care | 2025 |
| Fmrf Limited | Financial services | 2019 |
| FNM Limited | Health & social care | 2007 |
| Focus Lifts Limited | Construction | 2009 |
| Focus Partnership Travel Limited | Administrative & support | 2018 |
| Focus Strategic Consulting Limited | Professional & scientific | 2014 |
| Focus Travel Holdings Limited | Administrative & support | 2019 |
| Focus Travel Partnership Limited | Administrative & support | 2019 |
| Fodor Limited | Hospitality | 2014 |
| Folair Brands Ltd | Wholesale & retail | 2026 |
| Folair Ltd. | Wholesale & retail | 2024 |
| Folake Health Care Limited | Public administration | 2025 |
| Folc Limited | Wholesale & retail | 2019 |
| Folgen Ecoagro Limited | Other services | 2023 |
| Folgore FM Ltd | Administrative & support | 2024 |
| Folk Strategy Limited | Professional & scientific | 2023 |
| Folkestone Constitutional Limited | Real estate | 2013 |
| Folkestone Harbour & Seafront Management Company Limited | Administrative & support | 2016 |
| Folkestone Harbour (1) Limited | Real estate | 2006 |
| Folkestone Harbour (2) Limited | Construction | 2007 |
| Folkestone Harbour (3) Limited | Construction | 2007 |
| Folkestone Harbour (4) Limited | Construction | 2007 |
| Folkestone Harbour (GP) Limited | Construction | 2007 |
| Folkestone Harbour Company Limited | Transport & logistics | 1989 |
| Folkestone Harbour Holdings Limited | Professional & scientific | 2004 |
| Folkestone Harbour Limited Partnership | | 2007 |
| Folkestone Harbour Nominee (1) Limited | Construction | 2006 |
| Folkestone Harbour Nominee (2) Limited | Construction | 2007 |
| Folkestone Property Company Limited | Real estate | 2012 |
| Folkestone Shoreline Lettings Limited | Real estate | 2024 |
| Folkestone Shoreline Limited | Construction | 2022 |
| Follett Electrical Ltd | Construction | 2021 |
| Folwest Management Ltd | Professional & scientific | 2010 |
| Food Fare Superstore Limited | Wholesale & retail | 2012 |
| Food Hygiene Solutions Group Limited | Administrative & support | 2016 |
| Food Team Group Holdings Limited | Financial services | 2024 |
| Food Team Group Limited | Financial services | 2021 |
| Food Team International Holdings Limited | Financial services | 2024 |
| Food Team International Limited | Wholesale & retail | 2005 |
| Foodbreak Limited | Hospitality | 2025 |
| Foodfreighters UK Ltd | Transport & logistics | 2008 |
| Footpath Financial Limited | Professional & scientific | 2007 |
| Footprint Family Ltd | Wholesale & retail | 2021 |
| FOR a Memory Limited | Information & communication | 2023 |
| Forado Limited | Administrative & support | 2012 |
| Forbes Inc Ltd | Water & waste | 2021 |
| Ford Group Construction Ltd | Construction | 2024 |
| Ford Medical Associates Limited | Health & social care | 2000 |
| Fordash Construction Ltd | Construction | 2018 |
| Fordbridge Autocentre Ltd | Wholesale & retail | 2019 |
| Fordbridge Global Ltd | Wholesale & retail | 2024 |
| Fordbridge MOT Station Ltd | Wholesale & retail | 2025 |
| Fordbridge Road Management Company Limited | Extraterritorial | 1969 |
| Foreman Cars Limited | Manufacturing | 2016 |
| Foremans Removals Ltd | Transport & logistics | 2020 |
| Foresight 2 Consulting Ltd | Information & communication | 2021 |
| Forest Lakes Ltd | Agriculture & fishing | 2023 |
| Forever New Build Designs Ltd | Construction | 2026 |
| Forever Strong Coaching Ltd | Arts & recreation | 2026 |
| Forge Hill Developments (Aldington) Ltd | Construction | 2023 |
| Forgotten Histories Limited | Information & communication | 2025 |
| Forstal Farm Limited | Extraterritorial | 2025 |
| Fortalice Relocations Limited | Financial services | 2023 |
| Fortico Limited | Administrative & support | 2004 |
| Fortiminds Limited | Information & communication | 2024 |
| Fortis Consilium Ltd | Professional & scientific | 2022 |
| Fortis Financial Planning Ltd | Professional & scientific | 2019 |
| Fortis Structural Engineering Ltd | Professional & scientific | 2022 |
| Fortitude Private Capital Ltd | Professional & scientific | 2026 |
| Fortitude Strength Ltd | Arts & recreation | 2014 |
| Fortunatos Properties Limited | Real estate | 2018 |
| Fortune Way Management Company Limited | Households | 2019 |
| Forza Creative Ltd | Professional & scientific | 2022 |
| Forza Diet Ltd | Manufacturing | 2012 |
| Forza Entertainment Limited | Professional & scientific | 2018 |
| Forza Industries Ltd | Wholesale & retail | 2022 |
| Forza International Group Limited | Financial services | 2014 |
| Foshn Ltd | Financial services | 2024 |
| Foster & Payne Construction Limited | Construction | 2016 |
| Foster & Payne Developments (Deal) Limited | Construction | 2015 |
| Foster Friends Limited | Wholesale & retail | 2025 |
| Fosterik Global Limited | Real estate | 2014 |
| Fosters Accountants and Consultants Ltd | Professional & scientific | 2015 |
| Foto-Graphix Limited | Professional & scientific | 2004 |
| Foundation for Independence Limited | Other services | 2020 |
| Fountain Hill Construction Limited | Real estate | 2015 |
| Four Corners Housing Ltd | Real estate | 2023 |