| F. Dickinson & SON Limited | Construction | 2003 |
| F3E Security Ltd | Information & communication | 2017 |
| F4E Removals & Storage Ltd | Transport & logistics | 2022 |
| Fairhurst Global Investments Limited | Construction | 2000 |
| Fairone Limited | Construction | 2021 |
| Fakudile Solutions Limited | Health & social care | 2023 |
| Falco London Ltd | Real estate | 2020 |
| FAR Lane Media Limited | Arts & recreation | 2018 |
| Fargate Technology Limited | Administrative & support | 2014 |
| Fast View Ltd | Hospitality | 2019 |
| FAT Lizards Limited | Agriculture & fishing | 2025 |
| Faulkner Clay Limited | Professional & scientific | 2013 |
| FCL Event Logistics Limited | Other services | 2011 |
| FCL World Logistics Limited | Transport & logistics | 2013 |
| Fegans Commercial Group Ltd | Professional & scientific | 2015 |
| Fenner Financial Solutions Limited | Information & communication | 2018 |
| Fenton Wilson Limited | Professional & scientific | 2017 |
| Fergie’S Automotive Ltd | Wholesale & retail | 2018 |
| Fheo Corporation Limited | Financial services | 2019 |
| Fheo Limited | Extraterritorial | 2019 |
| Filler LAB Ltd | Other services | 2021 |
| Findz Limited | Wholesale & retail | 2026 |
| Fink Street Food Ltd | Hospitality | 2019 |
| Finpro Services Ltd | Professional & scientific | 2015 |
| Firework Store Limited | Arts & recreation | 2000 |
| First Foot Clinic Ltd | Health & social care | 2011 |
| First Point of Cool Ltd | Manufacturing | 2023 |
| Fixihome Ltd | Construction | 2026 |
| Flawless Advisory Limited | Real estate | 2023 |
| Flint's Auctions Limited | Wholesale & retail | 2016 |
| Florence London Ltd. | Wholesale & retail | 2013 |
| Flux TEL Ltd | Information & communication | 2024 |
| Flyfive Limited | Professional & scientific | 2014 |
| Flying Iron Co Ltd | Arts & recreation | 2018 |
| FMW Consultants Ltd | Administrative & support | 2023 |
| Focal Point Coaching Ltd. | Administrative & support | 2000 |
| Focus Flight Ltd | Information & communication | 2024 |
| Food Industry Supplies Ltd | Extraterritorial | 1992 |
| Footy Skills 4 Kids Ltd | Education | 2021 |
| FOR Good Limited | Extraterritorial | 2006 |
| Forefront HR Limited | Administrative & support | 2016 |
| Foremost Air Sea Transport Limited | Transport & logistics | 2013 |
| Forest Edge Tipis Ltd | Other services | 2019 |
| Forever in Blue Jeans Limited | Arts & recreation | 1998 |
| Forresters Thatcham Limited | Other services | 2017 |
| Fortress Wealth Partnership Ltd | Financial services | 2019 |
| FOX Renovations Ltd | Construction | 2025 |
| FOX Templeton Ltd | Professional & scientific | 2015 |
| Foxbriar Investments Limited | Real estate | 2024 |
| Foxpond Construction Ltd | Construction | 2015 |
| Francis Construction Limited | Construction | 1943 |
| Francis Legacy Planning Limited | Professional & scientific | 2023 |
| Frank's Sandwiches Ltd | Hospitality | 2025 |
| Fred's Fares Ltd | Transport & logistics | 2026 |
| Frederick Brickell and Sons Limited | Construction | 1959 |
| Freightshield Repair & Service Limited | Manufacturing | 1986 |
| Freva Ltd | Wholesale & retail | 2025 |
| Fulbrook Management Services Ltd | Financial services | 2025 |
| Furniture 4 Events Limited | Administrative & support | 2005 |
| Fusing Fitness Limited | Information & communication | 2008 |
| Fusion Project Delivery Ltd | Construction | 2025 |
| Future Drones Ltd | Wholesale & retail | 2020 |
| Future Robots Ltd | Manufacturing | 2022 |
| Futurepro Global Forwarding Ltd | Transport & logistics | 2026 |
| Futurion Technologies Ltd | Information & communication | 2024 |
| G & N Decorating Limited | Construction | 2009 |
| G & S Beal Limited | Information & communication | 2021 |
| G B Hydraulics (Newbury) Ltd | Manufacturing | 2019 |
| G B Hydraulics Ltd | Professional & scientific | 2026 |
| G E Electrical (Components) Limited | Wholesale & retail | 1988 |
| G J Ward Limited | Construction | 2013 |
| G&Ab Limited | Real estate | 2019 |
| G2 Foodies Ltd | Hospitality | 2026 |
| Gables Homes Limited | Real estate | 1982 |
| Gables Homes Property Management Limited | Real estate | 2015 |
| Gaia-Cc Ltd | Other services | 2025 |
| Gallagher Real Estate Ltd | Real estate | 2021 |
| Gaowen Limited | Information & communication | 2023 |
| Gareth Lilly Pharma Consulting Limited | Administrative & support | 2014 |
| Garnet Weddings Ltd | Wholesale & retail | 2022 |
| Garood Limited | Information & communication | 2010 |
| GB Bromley | Education | 2022 |
| GB Commercial Parts Limited | Wholesale & retail | 2021 |
| GB Racing Limited | Arts & recreation | 2013 |
| GBS (Southern) Limited | Hospitality | 2017 |
| GBS Eco-Construction Limited | Construction | 2015 |
| GBS Securities Limited | Construction | 2014 |
| GBT Networks Limited | Information & communication | 2026 |
| GCM Construction Services Ltd | Construction | 2026 |
| GDA Building Services Limited | Wholesale & retail | 2002 |
| GDS Logistics Ltd | Transport & logistics | 2007 |
| Gear CAM Ltd | Professional & scientific | 2025 |
| Gecko Fitness Limited | Administrative & support | 2004 |
| Gecko Physical Therapy Ltd | Health & social care | 2013 |
| George Peploe Fitness Ltd | Arts & recreation | 2019 |
| Gerald Palmer Eling Trust Company | Real estate | 2003 |
| Gigi&Co. Ltd | Wholesale & retail | 2025 |
| Gill Liquor Land Ltd | Wholesale & retail | 2025 |
| Ginel Equium Limited | Professional & scientific | 2015 |
| Gingerimp Limited | Information & communication | 2011 |