| Fulham Boxing Gym Ltd | Arts & recreation | 2025 |
| Full Frame Events Limited | Professional & scientific | 2014 |
| Full House Properties Ltd | Real estate | 2018 |
| Fullerians Rugby Football Club Limited | Arts & recreation | 2010 |
| Fullsterkur Limited | Professional & scientific | 2023 |
| Fulvia Classics Limited | Extraterritorial | 2020 |
| Fun-Fair-Fitness Ltd | Arts & recreation | 2021 |
| Functional Tech Solutions Limited | Professional & scientific | 2024 |
| Funvip Limited | Wholesale & retail | 2021 |
| Furahi Beauty Ltd | Wholesale & retail | 2020 |
| Furia Ltd | Construction | 2022 |
| Furniture Craft Ltd | Manufacturing | 2021 |
| Furniture Fusion Limited | Wholesale & retail | 2001 |
| Furnivo Ltd | Wholesale & retail | 2025 |
| Fusion Aesthetics International Ltd | Health & social care | 2017 |
| Fusion Twist Ltd | Hospitality | 2022 |
| Fusion Vibes Ltd | Hospitality | 2019 |
| Fusion Wood Green Propco Ltd | Real estate | 2021 |
| Fusioncater Gourmet Ltd | Hospitality | 2024 |
| Fusionwide Limited | Information & communication | 2024 |
| Futura Finds Limited | Wholesale & retail | 2023 |
| Future Brands Limited | Wholesale & retail | 2010 |
| Future Media Design Ltd | Information & communication | 2007 |
| Future Start Independent Financial Planning Limited | Financial services | 2014 |
| Future Start Wills & Trusts Ltd | Professional & scientific | 2022 |
| Futurebridge Solutions Ltd | Professional & scientific | 2026 |
| Futureflō Ltd | Information & communication | 2025 |
| Futuregen Health Care Ltd. | Health & social care | 2016 |
| FV Removals Ltd | Transport & logistics | 2018 |
| FWINC7 1963 Limited | Extraterritorial | 2014 |
| FX Global Capital Partners Ltd | Financial services | 2017 |
| Fxrm Services Ltd | Information & communication | 2025 |
| Fyfield Mechanical Engineering Ltd | Construction | 2014 |
| G & B Car Valeting Ltd | Manufacturing | 2016 |
| G & G Property Limited | Real estate | 2015 |
| G & MB Limited | Construction | 2003 |
| G & T Consultancy Ltd | Construction | 2026 |
| G & T Workforce Solutions Limited | Administrative & support | 2018 |
| G Adormeo Ltd | Health & social care | 2020 |
| G Bacon Limited | Construction | 2002 |
| G Mitchell Construction Limited | Construction | 2021 |
| G S Moore Installations Ltd | Construction | 2017 |
| G S P Civil Engineering Ltd | Construction | 2011 |
| G S United Limited | Wholesale & retail | 2024 |
| G V Bricks & Stones Ltd | Construction | 2015 |
| G Virk Builders Limited | Construction | 2018 |
| G Wise Limited | Professional & scientific | 2018 |
| G&A Property Limited | Real estate | 2020 |
| G&B Motors Ltd | Wholesale & retail | 2023 |
| G&J Construction Ltd | Construction | 2025 |
| G&L Property Maintenance Limited | Construction | 2009 |
| G&M Telecom Ltd | Construction | 2024 |
| G&M. UK Tiles Ltd | Construction | 2015 |
| G&R Property Developers Ltd | Construction | 2022 |
| G&T 1974 Limited | Construction | 2024 |
| G-Shug Ltd. | Transport & logistics | 2002 |
| G.Dav Solutions Limited | Professional & scientific | 2026 |
| G.E.Z. Ltd | Other services | 2017 |
| G.G. Management Limited | Households | 1988 |
| G.T. Incorporated Limited | Wholesale & retail | 1981 |
| G3B Company Ltd | Real estate | 2024 |
| G7 Business Solutions Limited | Information & communication | 2001 |
| G7 Luxuries Limited | Hospitality | 2022 |
| G8 Consult Limited | Real estate | 2020 |
| Gabielly Ltd | Information & communication | 2021 |
| Gable Cottage Investments Limited | Real estate | 2013 |
| Gabriel & Green Estate Agents Ltd | Real estate | 2026 |
| Gabriel Heavy Haulage Ltd | Transport & logistics | 2022 |
| Gabriel Innovations Group Ltd | Construction | 2025 |
| Gabriel Transports Ltd | Transport & logistics | 2020 |
| Gabriell Trans Ltd | Transport & logistics | 2021 |
| Gaddo Limited | Information & communication | 2017 |
| Gade Close Freehold Ltd | Real estate | 2009 |
| Gade Close Reversions Ltd | Real estate | 2010 |
| Gadget Clinic Repair Ltd | Wholesale & retail | 2018 |
| Gadget Repairers Ltd | Other services | 2017 |
| Gadshill Online Marketing Limited | Information & communication | 2014 |
| Gadswell Property Group Ltd | Real estate | 2026 |
| Gains With Govinchy (GWG) Ltd | Other services | 2022 |
| Gajanan Investments Ltd | Real estate | 2024 |
| Gaku Design & Consultancy Limited | Information & communication | 2014 |
| Gala Entertainments Ltd | Arts & recreation | 2019 |
| GALAXY9 Services Ltd | Wholesale & retail | 2025 |
| Galeswood Limited | Administrative & support | 2006 |
| Galiean Saas Ltd | Administrative & support | 2019 |
| Galileo Colocate Limited | Professional & scientific | 2009 |
| Galileo Connect Limited | Professional & scientific | 2005 |
| Galileo Datacentres LLP | | 2011 |
| Gallagher Clinical Research Ltd | Professional & scientific | 2019 |
| Gallagher Murphy Property Ltd | Real estate | 2023 |
| Gallichan a Limited | Wholesale & retail | 2013 |
| Gallows Hill Limited | Real estate | 2020 |
| Galvin Consultancy Services Ltd | Information & communication | 2013 |
| Gama Transport Ltd. | Transport & logistics | 2019 |
| Gamaro Limited | Transport & logistics | 2018 |
| Gambit Consulting Limited | Information & communication | 2014 |
| Game Changer Accessories Limited | Manufacturing | 2024 |
| Game on Sports Coaching Limited | Arts & recreation | 2006 |
| Gamesnest Ltd | Other services | 2025 |
| Gami Asset Management Ltd | Real estate | 2020 |