| Francis Films Limited | Information & communication | 2007 |
| Francisco Guerrero Ltd | Professional & scientific | 2015 |
| Franco Finishes Limited | Manufacturing | 1996 |
| Frank Illustrations Limited | Information & communication | 2004 |
| Frank Realty Limited | Real estate | 2018 |
| Frankophone Limited | Arts & recreation | 2026 |
| Frankstars Ltd | Other services | 2019 |
| Frasco Design Services Limited | Administrative & support | 2006 |
| Fraser & Fouche Ltd | Other services | 2006 |
| Frazzy Travel Ltd | Administrative & support | 2013 |
| Fred Builders Ltd | Construction | 2023 |
| Freddie Farmer Physiotherapy Centre Ltd. | Health & social care | 2015 |
| Frederick and Helena (Rotherhithe) RTM Company Limited | Real estate | 2026 |
| Frederick Charles Art Limited | Arts & recreation | 2015 |
| Frederick Square (Rotherhithe) RTM Company Limited | Real estate | 2026 |
| Frederick Square 2 (Rotherhithe) RTM Company Limited | Real estate | 2026 |
| Fredi Films Ltd | Information & communication | 2021 |
| Free FIN Limited | Real estate | 2018 |
| Freecom Internet Services Limited | Information & communication | 2008 |
| Freedom Flower Consultancy Ltd | Professional & scientific | 2019 |
| Freeheld Limited | Professional & scientific | 2020 |
| Freeholders Block Management Ltd | Real estate | 2020 |
| Freeholders of Firbank Limited | Households | 2009 |
| Freelands Tiles DG Limited | Wholesale & retail | 2022 |
| Freeline Limited | Extraterritorial | 2024 |
| Freestone Building Company Limited | Construction | 2020 |
| Freightsafe Ltd | Construction | 2017 |
| Frenetic Ltd | Information & communication | 2007 |
| Fresh Start Cleaning Solutions Ltd | Administrative & support | 2020 |
| Freshly Residents Company Limited | Households | 1970 |
| Freshtechventures Ltd | Administrative & support | 2024 |
| Fresko Manna Ltd | Hospitality | 2019 |
| FRG Property Limited | Real estate | 1985 |
| FRH Partners Limited | Financial services | 2010 |
| Friends of Socialist China | Information & communication | 2024 |
| Friendship Holdings Ltd | Other services | 2016 |
| Fritzsche Holdings Limited | Financial services | 2025 |
| Fromkolours Ltd | Arts & recreation | 2025 |
| Frontier Commodities Ltd | Financial services | 2018 |
| Frontline Construction Contractors Ltd | Construction | 2018 |
| Froosina Creative Studio CIC | Information & communication | 2026 |
| Frost (South Coast) Ltd | Financial services | 2011 |
| Frost Debt Solutions Ltd | Financial services | 2006 |
| Frost Group Limited | Financial services | 2005 |
| Frost Ventures Ltd | Financial services | 2006 |
| Frothy Coffee 2 Ltd | Hospitality | 2025 |
| FRT Ltd | Extraterritorial | 2025 |
| Fstp Limited | Education | 2021 |
| FSW Fulfilment Limited | Wholesale & retail | 2026 |
| FTZ Consulting Limited | Professional & scientific | 2015 |
| Fulham Reach Limited | Real estate | 2016 |
| Full Potential Tutoring Ltd | Education | 2015 |
| Fully Loaded Sound Ltd | Information & communication | 2025 |
| Functional Futures Ltd | Education | 2026 |
| Fundraising Futures Community Interest Company | Administrative & support | 2019 |
| Funky Atom Ltd | Manufacturing | 2021 |
| Funky Factory Limited | Administrative & support | 2012 |
| Funsize Trading Limited | Extraterritorial | 2008 |
| Funzeventz Limited | Arts & recreation | 2023 |
| Furious FOX Limited | Information & communication | 2016 |
| Furka Ltd | Information & communication | 2025 |
| Furlong Devon Limited | Administrative & support | 2019 |
| Furlong Resourcing Limited | Administrative & support | 2004 |
| Furnishing Interiors Ltd | Wholesale & retail | 2013 |
| Furt Limited | Professional & scientific | 2012 |
| Fusion UK Solutions Ltd | Construction | 2024 |
| Futu Ltd | Information & communication | 2018 |
| Futura House Management Limited | Real estate | 2005 |
| Future 134 Ltd | Administrative & support | 2019 |
| Future Chapter Care Limited | Health & social care | 2025 |
| Future Chapter Homes Limited | Health & social care | 2025 |
| Future Communities UK Limited | Professional & scientific | 2006 |
| Future Finance Ltd | Professional & scientific | 2015 |
| Future Form Studio Ltd | Professional & scientific | 2021 |
| Future House Ltd | Real estate | 2009 |
| Fuuel Design Ltd | Manufacturing | 2020 |
| Fuuel Ltd | Water & waste | 2020 |
| Fuuel Science Ltd | Professional & scientific | 2020 |
| Fwoda CPA Ltd | Extraterritorial | 2026 |
| FX and Payments Group Ltd | Financial services | 2025 |
| FX and Payments Limited | Financial services | 2025 |
| FYR Restaurant Ltd | Hospitality | 2021 |
| G & B Wholesale Ltd | Wholesale & retail | 2026 |
| G & D Building Maintenance Limited | Construction | 2003 |
| G and V Scaffolding Ltd | Construction | 2024 |
| G D Boxshall Financial Services Limited | Financial services | 2020 |
| G F D Painters and Decorators Limited | Construction | 2010 |
| G H Interiors (London) Limited | Construction | 2010 |
| G M Acoustics Limited | Construction | 2017 |
| G R J V S Limited | Construction | 2002 |
| G Wilson Advisory Ltd | Professional & scientific | 2026 |
| G&G Refurbishments Ltd | Construction | 2017 |
| G&K Management Consultants Ltd | Construction | 2012 |
| G&M Brickwork Ltd | Manufacturing | 2020 |
| G.C.E Developments Ltd | Real estate | 2024 |
| G.D.C. Partnership Limited | Construction | 1976 |
| G.H.M Scaffolding Limited | Construction | 2021 |
| G.M.S. Home Finance Limited | Financial services | 2009 |
| G.Ranov Ltd | Construction | 2018 |
| G7C Salon Limited | Other services | 2018 |