| Flossy Health Care Limited | Health & social care | 2013 |
| Flour and Fire Ltd | Hospitality | 2025 |
| Flowmote Ltd | Health & social care | 2025 |
| FLP Hospitality Ltd | Hospitality | 2023 |
| Fluorite Properties Ltd | Real estate | 2023 |
| Fluorite Rental Properties Ltd | Real estate | 2023 |
| Flush & Save Limited | Manufacturing | 2014 |
| Flutter 'M Ltd | Other services | 2025 |
| Flux Ship Ltd | Wholesale & retail | 2025 |
| Flyas Ltd | Wholesale & retail | 2025 |
| Flying Duck PUB Co Ltd | Hospitality | 2022 |
| Flying Fashions Limited | | 1978 |
| Flyte Design Limited | Professional & scientific | 2011 |
| Flytte Transport Ltd | Transport & logistics | 2024 |
| FM Cargo & Logistic Ltd | Transport & logistics | 2024 |
| FM Stereos Ltd | Wholesale & retail | 2025 |
| FMC Property Services Limited | Construction | 2001 |
| Fmcb Group Limited | Other services | 2021 |
| Fmclen Ltd | Administrative & support | 2026 |
| FNB Mentoring & Coaching CIC | Education | 2023 |
| Fobe's Pack Ltd | Wholesale & retail | 2025 |
| Focus EYE Clinic (Walsall) Limited | Wholesale & retail | 2015 |
| FOCUS3D Ltd | Administrative & support | 2023 |
| Fodadem UK Ltd | Education | 2025 |
| Fodesty Ltd | Public administration | 2022 |
| Foggo Consultancy Limited | Professional & scientific | 2022 |
| Foji Contractions Limited | Construction | 2018 |
| Folfem Limited | Transport & logistics | 2015 |
| Follow the Trail Africa Ltd | Administrative & support | 2018 |
| Foltech Associates Limited | Professional & scientific | 2022 |
| Fone Spot Limited | Wholesale & retail | 2024 |
| Fone Zone Retail Limited | Wholesale & retail | 2014 |
| Fone Zone UK - Ltd | Wholesale & retail | 2026 |
| Fontus Group Holdings Limited | Financial services | 2021 |
| Fontus Health Ltd | Manufacturing | 2012 |
| Fontus Investments Ltd | Financial services | 2025 |
| Fontus Pharma Ltd | Manufacturing | 2025 |
| Foodyuk Ltd | Administrative & support | 2025 |
| Football Ace Academy Limited | Education | 2015 |
| Football Data Consulting Ltd | Information & communication | 2025 |
| Footes Brickwork Ltd | Construction | 2019 |
| Footes Homes Ltd | Real estate | 2015 |
| Footfox Productions Ltd | Information & communication | 2018 |
| Footprint Technologies Limited | Professional & scientific | 2007 |
| Forayn Ltd | Information & communication | 2023 |
| Fordwell Kitchens Ltd | Professional & scientific | 2021 |
| Forest Balti Limited | Hospitality | 2022 |
| Forever Care (Walsall) Limited | Health & social care | 2019 |
| Forever Personalised Limited | Wholesale & retail | 2020 |
| Format Media Limited | Information & communication | 2012 |
| Formula One Trade Windows (Wiltshire) Limited | Extraterritorial | 2026 |
| Formula One Trade Windows Limited | Construction | 2024 |
| Formulaone Conservatories Limited | Professional & scientific | 2004 |
| Forneth Travels Ltd | Transport & logistics | 2023 |
| Fortaleza Intergroup Ltd | Professional & scientific | 2020 |
| Fortel AID Limited | Professional & scientific | 2010 |
| Fortel Construction Group Limited | Professional & scientific | 2012 |
| Fortel Construction Limited | Professional & scientific | 2003 |
| Fortel Services Limited | Construction | 1998 |
| Forti Secure Tech Ltd | Information & communication | 2024 |
| Fortis Group Ltd | Real estate | 2020 |
| Fortuna Global Ltd | Real estate | 2025 |
| Fortuna Logistics Limited | Transport & logistics | 2014 |
| Forty Winks Beds Limited | Manufacturing | 2026 |
| Fortyforty Ltd | Health & social care | 2020 |
| Forward Change Ltd | Professional & scientific | 2013 |
| Forward Integrity Limited | Information & communication | 2026 |
| Forward Ventures Limited | Real estate | 2005 |
| Foster & Jones (Walsall) Limited | Construction | 1959 |
| Fosters Window Controls Limited | Construction | 2015 |
| Fotis Care Ltd | Health & social care | 2025 |
| Founders Property Group Limited | Hospitality | 2026 |
| Foundry Gym Walsall Ltd | Arts & recreation | 2025 |
| Foundry Machinery & Spares Limited | Manufacturing | 2008 |
| Fountain Management Company Limited | Hospitality | 2025 |
| Fountain Solicitors Ltd | Professional & scientific | 2006 |
| Four Corners Community CIC | Health & social care | 2024 |
| Four Crosses Limited | Hospitality | 2015 |
| Four Jones's Limited | Households | 2025 |
| Four Oaks Couriers Limited | Transport & logistics | 2011 |
| Four Oaks Design and Build Ltd | Construction | 2024 |
| Four Oaks Property Holdings Limited | Real estate | 2025 |
| Four Seasons Property Management Ltd | Real estate | 2017 |
| Fourbridges PUB Co Ltd | Hospitality | 2021 |
| FOX Hollies Properties Limited | Construction | 1989 |
| Foxcorte Ltd | Wholesale & retail | 2025 |
| Foxhills Fishery Limited | Agriculture & fishing | 2020 |
| Foxmere Technologies Ltd | Wholesale & retail | 2018 |
| Foxtrot Realisations Limited | Manufacturing | 1957 |
| FPT Manufacturing Limited | Manufacturing | 2011 |
| Fragrance Hub Ltd | Wholesale & retail | 2023 |
| Frames 4U Limited | Wholesale & retail | 2022 |
| Francis William Installations Ltd | Construction | 2019 |
| Frank F. Harrison Community Association | Education | 1995 |
| Frankie Campered UP Ltd | Wholesale & retail | 2026 |
| Franklin's Removals Limited | Transport & logistics | 2001 |
| Franklins Holdings Limited | Financial services | 2025 |
| Franky's Holding Ltd | Administrative & support | 2026 |
| Fraser Wood (Holdings) Limited | Financial services | 2020 |
| Freaky Events Co Ltd | Arts & recreation | 2022 |