| Feather Dell Properties Ltd | Real estate | 2025 |
| Fernando Properties UK Ltd | Real estate | 2025 |
| Ferndown Residents Association Limited | Households | 1965 |
| Ficc Consulting Limited | Professional & scientific | 2014 |
| Field Marketing Design Ltd | Professional & scientific | 2016 |
| Fierce Films Limited | Information & communication | 2017 |
| Fikir Limited | Information & communication | 2025 |
| Filimize Ltd | Wholesale & retail | 2021 |
| Filiz Photography Ltd | Professional & scientific | 2025 |
| Film World Ltd | Administrative & support | 2026 |
| Finbarr Solutions Limited | Professional & scientific | 2015 |
| Find-A-Tyre.Com Limited | Wholesale & retail | 2012 |
| Finesse Enterprises Limited | Wholesale & retail | 2009 |
| Finesse Superstores Limited | Wholesale & retail | 2023 |
| Fineway Enterprise Limited | Hospitality | 1996 |
| Finivis Ltd | Professional & scientific | 2019 |
| Fiona Blakey Limited | Professional & scientific | 2026 |
| Fiord Transport Ltd | Transport & logistics | 2011 |
| Fire and Saffron Limited | Hospitality | 2026 |
| Fire ANT Productions Ltd | Information & communication | 2002 |
| Firedoor Experts Limited | Extraterritorial | 2017 |
| First Call Electricians Limited | Construction | 2019 |
| First Choice Tree Care Ltd | Administrative & support | 2025 |
| First Impressions Landscape & Garden Services Limited | Administrative & support | 2018 |
| First People Housing CIC | Health & social care | 2022 |
| Fitnessgal Ltd | Wholesale & retail | 2019 |
| Fitzmor Ltd | Other services | 2019 |
| Fitzroy Gate Residents Management Company Limited | Professional & scientific | 2015 |
| Five Oaks RTM Company Ltd | Households | 2025 |
| Fivla Trans Ltd | Wholesale & retail | 2018 |
| Fixatrad Limited | Wholesale & retail | 1970 |
| Fizz Services Ltd | Arts & recreation | 2025 |
| FK Cleaning Solutions Ltd | Administrative & support | 2025 |
| Flana Solutions Limited | Transport & logistics | 2025 |
| Flat Technologies Limited | Wholesale & retail | 2011 |
| Flavours Hub Ltd | Hospitality | 2024 |
| Flex Group Ltd | Wholesale & retail | 2022 |
| Flexi Foot Care Limited | Health & social care | 2015 |
| Florad Supportive Services Ltd | Administrative & support | 2024 |
| Flourish Advanced Care Limited | Health & social care | 2020 |
| Flowvac Ltd | Transport & logistics | 2024 |
| Fluffy Dog Beauty Ltd | Other services | 2024 |
| Fluid Affluence Limited | Administrative & support | 2023 |
| Fluid Pharma Ltd | Professional & scientific | 2016 |
| Flyhigh Hospitality Ltd | Hospitality | 2025 |
| Fmex Developments Limited | Construction | 2020 |
| Focus Healthcare Solutions Limited | Health & social care | 2024 |
| Focus on the Gold Ltd | Information & communication | 2024 |
| Focus Quality Solutions Limited | Administrative & support | 2023 |
| Folkestone and Dover Water Services Limited | Extraterritorial | 1998 |
| Food Manufacturing Technical Ltd | Professional & scientific | 2012 |
| Foods by RR Ltd | Hospitality | 2026 |
| Footsteps 123 Ltd | Education | 2017 |
| Forefront Holdings Ltd | Wholesale & retail | 2025 |
| Formalshare Property Management Limited | Households | 1995 |
| Fort William Consultants Ltd | Professional & scientific | 2015 |
| Fortessence Limited | Administrative & support | 2025 |
| Forts Developments Ltd | Construction | 2014 |
| Forts Joinery Ltd | Construction | 2017 |
| Foster's Homes Limited | Real estate | 2021 |
| Four Units Hatfield Management Company Limited | Extraterritorial | 2015 |
| Foxtrot Internet Limited | Information & communication | 2023 |
| FP Flooring Ltd | Construction | 2024 |
| FRA Solution Ltd | Construction | 2021 |
| Francesca Beauty Ltd | Other services | 2026 |
| Franz Engineering Ltd | Transport & logistics | 2016 |
| Fresh Food Hatfield Ltd | Wholesale & retail | 2024 |
| Fresh Stance Limited | Information & communication | 2015 |
| Freshreach Limited | Wholesale & retail | 2025 |
| Friends Cargo Ltd | Wholesale & retail | 2025 |
| Frimley Properties Limited | Real estate | 2004 |
| Frog END Pet Supplies Limited | Wholesale & retail | 2013 |
| FSH Consultancy Ltd | Education | 2012 |
| Fshcreative Limited | Arts & recreation | 2025 |
| Full International Limited | Wholesale & retail | 2022 |
| Fully Fused Limited | Extraterritorial | 2010 |
| FUN Food Village Limited | Hospitality | 2020 |
| FUN N Fashions Ltd. | Wholesale & retail | 2016 |
| Funatic Solutions Ltd | Information & communication | 2024 |
| Furever Yours Ltd | Wholesale & retail | 2025 |
| Furr Investment Ltd | Financial services | 2025 |
| Furr Properties Ltd | Real estate | 2025 |
| Fusion Connect Ltd | Professional & scientific | 2005 |
| Fusion Heat Ltd | Construction | 2015 |
| Future Space Mode Ltd | Construction | 2020 |
| Future Sports (Southampton) Limited | Arts & recreation | 2013 |
| G & S Finance Limited | Administrative & support | 1947 |
| G & V Management Limited | Households | 2023 |
| G J R Homes Limited | Professional & scientific | 2002 |
| G L Bartlett Ltd | Wholesale & retail | 2003 |
| G Property Investments Ltd | Real estate | 2024 |
| G&C Express Ltd | Transport & logistics | 2025 |
| G&T Mgmt Ltd | Real estate | 2026 |
| G&T Short Lets Ltd | Real estate | 2024 |
| G. R. E. Trans Ltd. | Transport & logistics | 2024 |
| G.Blackett Ltd | Health & social care | 2023 |
| G.V Cladding&Roofing Ltd | Construction | 2026 |
| GA Kazak Building and Mechanical Services Ltd | Transport & logistics | 2015 |
| Gabchrist Limited | Health & social care | 2017 |
| Gadkar Limited | Professional & scientific | 2016 |