| Fulfilled Recruitment Ltd | Administrative & support | 2024 |
| Fulham CAB Company Limited | Transport & logistics | 2005 |
| Fulham CAB Holdings Limited | Financial services | 2020 |
| Fulham Holdings Limited | Financial services | 2020 |
| Full Circle Connections Ltd | Other services | 2023 |
| Full Power Holdings Ltd | Administrative & support | 2024 |
| Full Power Utilities Ltd | Administrative & support | 2003 |
| Fullcircle Design & Art Direction Ltd | Arts & recreation | 2012 |
| Fullerene Labs Ltd | Information & communication | 2019 |
| Fundamental Consulting Services Limited | Professional & scientific | 2016 |
| Funky Chat Ltd | Information & communication | 2021 |
| Funraisin Limited | Information & communication | 2018 |
| Funtech Global Communications Limited | Financial services | 2012 |
| Furzehill Flooring Limited | Construction | 2015 |
| Fuse Capital Group Ltd | Financial services | 2023 |
| Fuse Three Finance Limited | Financial services | 2013 |
| Fuse Ultimate Holdings Ltd | Financial services | 2025 |
| Fusion Electrical Ltd | Construction | 2015 |
| Future CAE Technologies (UK) Ltd | Information & communication | 2011 |
| Future Entertainment Limited | Construction | 2016 |
| Future Footprints Ltd | Hospitality | 2024 |
| Future Hospitality Group Limited | Financial services | 2022 |
| Future Legal Services Ltd | Professional & scientific | 2006 |
| Future Shop Limited | Wholesale & retail | 2004 |
| Future Zone Construction Ltd | Construction | 2024 |
| Futurecomfortcard Limited | Professional & scientific | 2010 |
| Futures Properties Ltd | Real estate | 2025 |
| Futurinvest Limited | Administrative & support | 1991 |
| Fuzz Film Services Ltd | Arts & recreation | 2021 |
| FW Block Management Limited | Real estate | 2024 |
| Fxfbbq Ltd | Hospitality | 2023 |
| Fylde Tiles Ltd | Wholesale & retail | 2014 |
| Fysco Agency Limited | Administrative & support | 2019 |
| G & S Heating Engineering Limited | Construction | 2014 |
| G - CAM (Surrey) Limited | Transport & logistics | 2011 |
| G Adrian Ltd | Transport & logistics | 2016 |
| G B Constructionn Limited | Construction | 2011 |
| G Carpentry Ltd | Construction | 2024 |
| G Clark Plasterers Ltd | Construction | 2022 |
| G FOX Boxing Ltd | Arts & recreation | 2020 |
| G J Smith Roofing Ltd | Construction | 2026 |
| G M Industrial Supply Co Limited | Wholesale & retail | 1952 |
| G P Elden Ltd | Professional & scientific | 2020 |
| G Packer Limited | Construction | 2021 |
| G Power Ltd | Construction | 2023 |
| G&Aa FAM Ltd | Construction | 2023 |
| G&B Automotive Ltd | Wholesale & retail | 2018 |
| G&Mc Limited | Construction | 2020 |
| G&P Advertising Limited | Professional & scientific | 1906 |
| G&S Consultancy Solutions Limited | Administrative & support | 2023 |
| G&S Path to Progression Ltd | Health & social care | 2023 |
| G&S Properties Group Ltd | Real estate | 2015 |
| G. Altmann Legal Services Limited | Professional & scientific | 2021 |
| G.A.R Civil Engineering Consultancy Ltd | Professional & scientific | 2018 |
| G.C.C. Property Care Limited | Administrative & support | 1993 |
| G.H.T. Properties Limited | Households | 1991 |
| G.O. Ansah Limited | Administrative & support | 2015 |
| G5 Padas (Property and Digital Asset Solutions) Ltd | Real estate | 2021 |
| G8 Holdings Ltd | Financial services | 2025 |
| G8 Investments Ltd | Real estate | 2025 |
| GA Tech Solutions Ltd | Information & communication | 2015 |
| Gabli Limited | Wholesale & retail | 2019 |
| Gabriel MGA Ltd | Construction | 2022 |
| Gabriela Cleaning Expres Ltd | Construction | 2021 |
| Gadget Republic Limited | Wholesale & retail | 2015 |
| Gadget Warehouse London Limited | Wholesale & retail | 2000 |
| Gadon Properties Ltd | Real estate | 2022 |
| GAE Investments Ltd | Financial services | 2015 |
| Gags Property Limited | Financial services | 2023 |
| Galactica LLP | | 2014 |
| Galaford Limited | Manufacturing | 1996 |
| Galaxy Roofing & Building Services Ltd | Construction | 2024 |
| Galaxy Roofing Services Ltd | Construction | 2017 |
| Galleria Court RTM Company Limited | Households | 2018 |
| Galley House (Barnet) Management Limited | Administrative & support | 2005 |
| Gallick Distribution LLP | | 2016 |
| Galvilla Ltd | Administrative & support | 2023 |
| Gama Interiors Ltd | Construction | 2013 |
| Gamar Limited | Information & communication | 2011 |
| Game of Whiskey Wholesalers Ltd | Wholesale & retail | 2021 |
| Gaminsight Ltd | Professional & scientific | 2022 |
| Gammell Advisory Limited | Professional & scientific | 2024 |
| GAN on the Hill Ltd | Education | 2024 |
| Ganeshan Limited | Real estate | 2016 |
| Ganeshan Properties LLP | | 2020 |
| Garden Court NW8 Property Company Limited | Real estate | 1994 |
| Gardian Accounting Limited | Professional & scientific | 2018 |
| Gardian Electrical Ltd | Construction | 2023 |
| Gardian Limited | Administrative & support | 2012 |
| Gardiner Entertainment Ltd. | Information & communication | 2012 |
| Garioch Mckay Consulting (Group) Ltd | Professional & scientific | 1996 |
| Garth Enterprises Partnership LLP | | 2015 |
| Garth Trustee’S Ltd | Extraterritorial | 2014 |
| Gary Webb Architects Limited | Professional & scientific | 2005 |
| Gasco&Built Ltd. | Construction | 2006 |
| Gashara Limited | Professional & scientific | 2014 |
| Gastro Fati Limited | Health & social care | 2019 |
| Gatto Services Ltd | Administrative & support | 2020 |
| Gausen & Co Limited | Financial services | 2012 |
| Gavileo Ltd | Other services | 2023 |