| Freetrade International Ltd | Extraterritorial | 2020 |
| French Heritage Associates Limited | Real estate | 1999 |
| Frenlas UK General Home Furnishing System Co., Ltd | Extraterritorial | 2014 |
| Fresh Forward Stream Solutions Limited | Wholesale & retail | 2024 |
| Fresh Frag Limited | Wholesale & retail | 2026 |
| Fresh N Clean Laundry Ltd | Other services | 2026 |
| Fresh on the Go Limited | Hospitality | 2013 |
| Freshluxe LLP | | 2025 |
| Freyber Ltd | Professional & scientific | 2021 |
| Friends Alliance Properties Ltd | Real estate | 2016 |
| Friendship Mediation Ltd | Other services | 2021 |
| Friki Tiki Ltd | Hospitality | 2023 |
| Frith Coaching and Mental Health Consultancy Ltd | Health & social care | 2020 |
| Frkhs Ltd | Wholesale & retail | 2025 |
| Frobishers 88 Partners LLP | | 2024 |
| Fromthehearthgb Ltd | Wholesale & retail | 2024 |
| Frontier Wave Global Learning and Investment Alliance Ltd | Financial services | 2025 |
| Frootie Limited | Manufacturing | 2024 |
| Frost Infrastructure Ltd. | Wholesale & retail | 2025 |
| Frostvein Ltd | Wholesale & retail | 2025 |
| Fsoft Ltd | Information & communication | 2025 |
| Fsun Medical Ltd | Health & social care | 2020 |
| Fthem Ltd | Arts & recreation | 2025 |
| FU Collective Ltd | Wholesale & retail | 2025 |
| FU Jincai Ltd | Wholesale & retail | 2026 |
| FU Xiao TAO Ltd | Wholesale & retail | 2025 |
| Fucai Clothing Ltd | Wholesale & retail | 2025 |
| Fuccio Hillard Ltd | Wholesale & retail | 2025 |
| Fuchsia House Properties Ltd | Real estate | 2025 |
| Fuda Ltd | Wholesale & retail | 2025 |
| Fuelled and Fit Food Ltd | Hospitality | 2025 |
| Fugitive Flamingo Films Limited | Information & communication | 2019 |
| Fuguiniao Trading (UK) Limited | Manufacturing | 2025 |
| Fujiprime Ltd | Wholesale & retail | 2025 |
| Fulgur Tech Ltd | Wholesale & retail | 2025 |
| Full Stacked Ltd | Information & communication | 2025 |
| Fullstack Coding Ltd | Information & communication | 2025 |
| Fulu Ltd | Wholesale & retail | 2025 |
| Fumagalli.Club Ltd. | Wholesale & retail | 2019 |
| Funalyse Limited | Information & communication | 2025 |
| Funatic Media Ltd | Professional & scientific | 2025 |
| Fundales Ltd | Wholesale & retail | 2025 |
| Funds & Funs Investment Ltd | Hospitality | 2023 |
| Funhippy Ltd | Health & social care | 2014 |
| Funke Adepoju Ltd | Wholesale & retail | 2021 |
| Funkidesign Ltd | Manufacturing | 2025 |
| Funnelyx Ltd | Information & communication | 2026 |
| Funny Greeting Limited | Wholesale & retail | 2024 |
| Funrealm Ltd | Wholesale & retail | 2025 |
| Furidamu Limited | Professional & scientific | 2025 |
| Furkan Ferhat Limited | Wholesale & retail | 2025 |
| Furniture for YOU Limited | Wholesale & retail | 2012 |
| Furry PAW Ltd | Manufacturing | 2025 |
| Fushungg Trade Ltd | Wholesale & retail | 2025 |
| Fusion Science Ltd | Professional & scientific | 2025 |
| Futility Ltd | Information & communication | 2025 |
| Future Biotech Cosmetics Manufacturing Ltd | Wholesale & retail | 2026 |
| Future Feed Ltd. | Extraterritorial | 2022 |
| Future Geometry LAB Limited | Wholesale & retail | 2025 |
| Future Turf Ltd | Wholesale & retail | 2025 |
| Futuretense Media Limited | Wholesale & retail | 2025 |
| Futurevfx Ltd | Information & communication | 2025 |
| Futurofun Ltd | Manufacturing | 2025 |
| Fuxing Ltd | Wholesale & retail | 2025 |
| Fuzzion Ltd | Manufacturing | 2025 |
| Fuzzy Logistics Engineering Ltd | Information & communication | 2020 |
| FVL Solutions Ltd | Professional & scientific | 2023 |
| FWD Jihi Trading Limited | Wholesale & retail | 2025 |
| Fwfw Property Limited | Real estate | 2025 |
| FXN Holdings Limited | Wholesale & retail | 2024 |
| Fxtc Group Ltd | Professional & scientific | 2012 |
| FY YIN Limited | Wholesale & retail | 2024 |
| FYG Industry Limited | Professional & scientific | 2025 |
| FYG Management Ltd | Professional & scientific | 2025 |
| Fynostra Ltd | Wholesale & retail | 2025 |
| Fyronix Ltd | Wholesale & retail | 2026 |
| Fyvyn Group Ltd | Wholesale & retail | 2025 |
| FZA Properties Limited | Real estate | 2026 |
| Fzrgroup Ltd | Wholesale & retail | 2025 |
| G & D Export Limited | Administrative & support | 2010 |
| G & L Civils Ltd | Construction | 2020 |
| G Guanmin Limited | Wholesale & retail | 2024 |
| G K Investments UK Limited | Real estate | 2004 |
| G M Joyce Surfacing Ltd | Construction | 2003 |
| G T M Debt Recovery Services Limited | Other services | 2014 |
| G Yongqiang Limited | Wholesale & retail | 2024 |
| G. Denver Industries Limited | Manufacturing | 2025 |
| G. P. Zolee Consulting Ltd | Professional & scientific | 2022 |
| G.A.G. Group Ltd | Construction | 2022 |
| G.S.T Contracting Ltd | Administrative & support | 2013 |
| Gabi Plumbing & Heating Ltd | Construction | 2026 |
| GAD Executive Search Ltd | Administrative & support | 2015 |
| Galacticos Games Ltd | Manufacturing | 2021 |
| Galaxy Esports Ltd | Professional & scientific | 2024 |
| Galaxy Hub Ltd | Wholesale & retail | 2025 |
| Gallego Ltd | Information & communication | 2015 |
| GAM Neurology Ltd | Health & social care | 2023 |
| Game of Scones CIC | Hospitality | 2025 |
| Game Sale Ltd | Wholesale & retail | 2025 |
| Gametuch Ltd | Wholesale & retail | 2025 |