| Fiza Collections Ltd | Wholesale & retail | 2025 |
| Flair Woodwork Ltd | Wholesale & retail | 2009 |
| Flairmint Ltd | Real estate | 2018 |
| Flamingo Flames Grill Ltd | Hospitality | 2022 |
| Flatshousesandmore Ltd | Hospitality | 2024 |
| Flavio Gomes Ltd | Construction | 2026 |
| Flavors of Opulence Limited | Hospitality | 2025 |
| Flawless Beauty Room Limited | Other services | 2016 |
| Fleetflow Logistics Ltd | Wholesale & retail | 2025 |
| Flickbuy Ltd | Wholesale & retail | 2025 |
| Floja Ltd | Health & social care | 2020 |
| Floorbills Ltd | Construction | 2022 |
| Flopo Learning Ltd | Information & communication | 2026 |
| Florapp Cars Limited | Administrative & support | 2025 |
| Florin Albu Limited | Transport & logistics | 2024 |
| Florin Haulage Ltd | Transport & logistics | 2008 |
| Florko Ltd | Construction | 2022 |
| Flowstate Boxing Ltd | Manufacturing | 2025 |
| Flyway Carriages Limited | Transport & logistics | 2011 |
| Fmit Limited | Information & communication | 2013 |
| FNB Projects UK Ltd | Construction | 2022 |
| FNS Accountancy Ltd | Professional & scientific | 2020 |
| Focal Bliss Media Ltd | Information & communication | 2020 |
| Focustek Limited | Information & communication | 2013 |
| Food Choice for YOU Ltd | Hospitality | 2026 |
| Food Partner Limited | Wholesale & retail | 2024 |
| Foodgenix Ltd | Hospitality | 2023 |
| Forest Estate Agents Limited | Real estate | 1993 |
| Forever Wellness Limited | Wholesale & retail | 2024 |
| Forklift Training Expert Limited | Education | 2019 |
| Formatech Labs Ltd | Information & communication | 2021 |
| Fort Tech Limited | Information & communication | 2025 |
| Forte Homes Limited | Construction | 2024 |
| Forward Plastics Limited | | 1932 |
| Fostro Estates Ltd | Real estate | 2017 |
| Fostro Technologies Limited | Information & communication | 2015 |
| Four Stars Services Ltd | Wholesale & retail | 2020 |
| Fouryou Roofing Limited | Construction | 2025 |
| FOX Car Specialist Limited | Wholesale & retail | 2021 |
| Foxxy Furniture Ltd | Manufacturing | 2021 |
| Framelogic Limited | Information & communication | 2026 |
| Francos 777 Ltd | Hospitality | 2024 |
| Frankie Fish & Chips Ltd | Hospitality | 2020 |
| Franklin Cars Limited | Administrative & support | 2015 |
| Fraser Courier Services Ltd | Transport & logistics | 2026 |
| Freight Flow Ltd | Transport & logistics | 2024 |
| Friends Corner Limited | Hospitality | 2025 |
| Friends Impex Limited | Wholesale & retail | 2020 |
| From Above Ltd | Wholesale & retail | 2022 |
| Frontier Forwarding Services Limited | Transport & logistics | 1992 |
| FSK Community Ltd | Arts & recreation | 2025 |
| FTM Solar Limited | Professional & scientific | 2013 |
| Fuelefficiency Oils Limited | Wholesale & retail | 2025 |
| Fufi Studio Ltd | Wholesale & retail | 2025 |
| Full House Repairs Ltd | Construction | 2026 |
| Full Protection Systems Limited | Professional & scientific | 2018 |
| Functional Finance Consulting Limited | Professional & scientific | 2025 |
| Funeralcare Limited | Other services | 1989 |
| Funtec Consultancy Limited | Health & social care | 2014 |
| Future Skills Foundation CIC | Education | 2025 |
| Fynax Ltd | Professional & scientific | 2005 |
| Fysiotek Health Solutions UK Ltd | Health & social care | 2024 |
| G & G of London Ltd | Transport & logistics | 2025 |
| G & S Deliveries Ltd | Transport & logistics | 2025 |
| G N Burgess & Co. Ltd | Extraterritorial | 2002 |
| G S Contractors Ltd | Construction | 2023 |
| G S Sahota Construction Ltd | Construction | 2023 |
| G&C Operations Ltd | Transport & logistics | 2016 |
| G&G Richmond Limited | Construction | 2020 |
| G&J Roofing London Limited | Construction | 2025 |
| G&K Cleaning Services Ltd | Administrative & support | 2023 |
| G&K Construction London Ltd | Construction | 2023 |
| G&T Plus Ltd | Administrative & support | 2024 |
| G&T PVT Ltd. | Administrative & support | 2016 |
| G-Nick Construction Ltd | Construction | 2014 |
| G.E.L Moves Ltd | Transport & logistics | 2017 |
| G1 Trans Ltd | Transport & logistics | 2019 |
| GA Cleaning Services Limited | Administrative & support | 2012 |
| Gabana Beauty 80 Ltd | Other services | 2024 |
| Gabriel SOL Ltd | Transport & logistics | 2019 |
| Gaia Kurt Ltd | Wholesale & retail | 2020 |
| GAL Group Ltd | Construction | 2024 |
| Galactic Media Limited | Arts & recreation | 2008 |
| Galanacci Ltd | Wholesale & retail | 2021 |
| Gambinifaces Ltd | Arts & recreation | 2026 |
| Gambit Technology Solutions Limited | Information & communication | 2016 |
| Ganeshaya Limited | Wholesale & retail | 2016 |
| Ganpati Niwas Ltd | Real estate | 2026 |
| Garden Mind Ltd | Administrative & support | 2015 |
| Gasprove Ltd | Wholesale & retail | 2025 |
| Gatekeepers Primary Care Ltd | Health & social care | 2025 |
| Gavensis Estates Limited | Real estate | 2023 |
| Gayathri Ltd | Wholesale & retail | 2025 |
| Gayathri Traders PVT Limited | Wholesale & retail | 2023 |
| Gazion Limited | Administrative & support | 2015 |
| GB Autos & Tyres Feltham Ltd | Wholesale & retail | 2020 |
| GB Autos and Tyres Ltd | Wholesale & retail | 2017 |
| GB Capital Properties Limited | Real estate | 2024 |
| GB Inspection Ltd | Professional & scientific | 2026 |
| GBB Consulting Services UK Limited | Hospitality | 2023 |