| FOR Your Feet Ltd | Wholesale & retail | 2025 |
| Forbes & Manhattan Wellness Ltd | Wholesale & retail | 2019 |
| Forbes Establishment Ltd | Wholesale & retail | 2023 |
| Forbes Estates Limited | Wholesale & retail | 2024 |
| Force Nexus Buccleuch Ltd | Real estate | 2023 |
| Force Nexus CNC01 Ltd | Wholesale & retail | 2026 |
| Force Nexus Consulting Ltd | Professional & scientific | 2021 |
| Force Nexus Holdings Ltd | Real estate | 2020 |
| Force Nexus Ltd. | Professional & scientific | 2017 |
| Force Nexus Mbsg Ltd | Real estate | 2021 |
| Force Nexus Ramshead Ltd | Construction | 2021 |
| Force Nexus Retail Holdings Ltd | Financial services | 2026 |
| Force Nexus Waterview FH Ltd | Real estate | 2025 |
| Force Nexus Waterview LH Ltd | Real estate | 2025 |
| Force Nexus Westmorland Ltd | Real estate | 2024 |
| Forex Services Ltd | Construction | 2021 |
| Forge Lodge Management Company Limited | Households | 1981 |
| Forgotten Orphans Ltd | Health & social care | 2013 |
| FORMATT77 Ltd | Information & communication | 2025 |
| Fornature Ltd | Professional & scientific | 2023 |
| Forte Wellness Limited | Wholesale & retail | 2013 |
| Fortuna Innovations Ltd | Wholesale & retail | 2025 |
| Fortune Consultancy Ltd | Professional & scientific | 2022 |
| Fortune Estateplanning Limited | Financial services | 2021 |
| Fortune NOW Limited | Real estate | 2017 |
| Fortune Own Limited | Real estate | 2023 |
| Fortune WON Limited | Real estate | 2022 |
| Fortune YES Limited | Real estate | 2023 |
| Fortville Properties Limited | Real estate | 2005 |
| Forum UK Limited | Real estate | 2004 |
| Fosta Education Ltd | Education | 2025 |
| Four H Homes Ltd | Real estate | 2026 |
| Four Season Spice Catering Ltd | Hospitality | 2025 |
| Four Season Spice London Limited | Hospitality | 2025 |
| Fourmen Services Limited | Hospitality | 2008 |
| Fourseasons Hospitality Limited | Hospitality | 2014 |
| FR Homes Developments Ltd | Real estate | 2026 |
| FR Properties Management Ltd | Real estate | 2021 |
| FR Solicitors Ltd | Professional & scientific | 2017 |
| Fragrance Paradise Ltd | Wholesale & retail | 2025 |
| Framly Ltd | Information & communication | 2026 |
| Francis Car Sales Limited | Wholesale & retail | 2020 |
| Francisco Goods Limited | Wholesale & retail | 2025 |
| Frankie Brown Creative Limited | Arts & recreation | 2012 |
| Freehold Centre (Amberley Way) Management Company Limited(The) | Professional & scientific | 1986 |
| Freight in Clearance and Logistics Ltd | Transport & logistics | 2023 |
| Freight Meter Ltd | Transport & logistics | 2020 |
| Freight Minds Holdings Limited | Financial services | 2022 |
| Freight Minds Limited | Transport & logistics | 2021 |
| French Canteen UK Ltd | Hospitality | 2024 |
| Fresh Barbers Haircuts Ltd | Other services | 2026 |
| Fresh Flavorz Limited | Wholesale & retail | 2022 |
| Fresh Like This Ltd | Professional & scientific | 2012 |
| Fresh Meat Hounslow Ltd | Wholesale & retail | 2026 |
| Fresh Organic Fruit & Vegetable Ltd | Wholesale & retail | 2024 |
| Freshline Services Limited | Administrative & support | 2003 |
| Frezer Services Limited | Information & communication | 2025 |
| Friendly Recruitment Ltd | Transport & logistics | 2018 |
| Friends & Family Trading Limited | Real estate | 2013 |
| Friends Dental Ltd | Health & social care | 2020 |
| Friends Group Management Ltd | Real estate | 2024 |
| Friends of Afghan Women Network CIC | Education | 2025 |
| FRM Building Services Ltd | Construction | 2023 |
| Front Field Energy Resources Limited | Construction | 2011 |
| Frontier Windows Ltd. | Construction | 2021 |
| Frubble Ltd. | Information & communication | 2015 |
| Fruit Kingdom Limited | Wholesale & retail | 2025 |
| Fruitful Endeavours Ltd | Real estate | 2022 |
| FS Barrawaz UK Ltd | Hospitality | 2020 |
| Fshahid Limited | Professional & scientific | 2020 |
| Fsrs Group Limited | Professional & scientific | 2022 |
| Ftcc Ltd | Health & social care | 2018 |
| Fuego GOA Ltd | Hospitality | 2025 |
| Fullmoon Fusion Hospitality Ltd | Hospitality | 2024 |
| Fullwerx Limited | Construction | 2019 |
| Funic Tech Limited | Information & communication | 2022 |
| Furlenco Ltd | Wholesale & retail | 2024 |
| Furniture Assembly Ltd. | Other services | 2025 |
| Furniture Gallery (London) Limited | | 1994 |
| Furniture Inn Ltd | Wholesale & retail | 2023 |
| Fuse & Go Ltd | Construction | 2026 |
| Fusion Business Properties Limited | Real estate | 2005 |
| Fusion Food Corp Ltd | Hospitality | 2026 |
| Fusion Food London Ltd | Hospitality | 2024 |
| Fusion Private Ltd | Wholesale & retail | 2024 |
| Futuram Services Limited | Construction | 2017 |
| Future BIO Consulting Ltd | Professional & scientific | 2019 |
| Future Energy Investment Ltd | Manufacturing | 2023 |
| Future Tech Systems Limited | Other services | 2009 |
| Futurebueld Ltd | Construction | 2025 |
| Futures FX Limited | Transport & logistics | 2013 |
| Futurewise Property Limited | Real estate | 2024 |
| Futurewise Services Limited | Financial services | 2020 |
| Futuristic Technologies Ltd | Information & communication | 2012 |
| FWK Consulting Limited | Information & communication | 2014 |
| Fyntek Limited | Information & communication | 2026 |
| Fyntravo Etech Ltd | Wholesale & retail | 2025 |
| G & S Investco Limited | Financial services | 2022 |
| G and D Transport London Limited | Transport & logistics | 2025 |
| G Brothers Real Estate Limited | Real estate | 2025 |