| Foxheath Limited | Wholesale & retail | 1981 |
| Foxley Property Management Ltd | Real estate | 2015 |
| Foxy Sneakers Ltd | Wholesale & retail | 2019 |
| Franklin Bodywork Specialist Limited | Wholesale & retail | 2018 |
| Franklin Contracts Ltd | Construction | 2011 |
| Frankson Medical Consultancy Ltd | Health & social care | 2016 |
| Fred & Noah Ltd | Wholesale & retail | 2016 |
| Fredson Homes Ltd | Real estate | 2025 |
| Free World Music Limited | Administrative & support | 2005 |
| Freedom Leisure Limited | Wholesale & retail | 2021 |
| Freeway Consultancy Limited | Administrative & support | 1992 |
| Frey Ltd | Hospitality | 2025 |
| Fridge Merchandise Limited | Wholesale & retail | 2026 |
| Fritwell Limited | Administrative & support | 2014 |
| Frontline Agencies Limited | Professional & scientific | 1992 |
| FS Collection Ltd | Wholesale & retail | 2012 |
| FTC Building Services Ltd | Construction | 2023 |
| Ftpct Limited | Health & social care | 2013 |
| Fuelling Performance Ltd | Health & social care | 2015 |
| Fuelsource Ltd | Administrative & support | 2021 |
| FUR Freshers Ltd | Other services | 2025 |
| Fusilier Ventures Limited | Wholesale & retail | 2008 |
| Future Decarbonise Limited | Professional & scientific | 2024 |
| Future Fire Systems Limited | Construction | 2017 |
| Future Fuel Solutions Limited | Construction | 2018 |
| Future Giant Trading Ltd | Wholesale & retail | 2021 |
| Future Group Holdings (London) Limited | Financial services | 2026 |
| Future Group London Limited | Real estate | 2020 |
| Future Heating Limited | Construction | 2019 |
| Future Lighting and Electrical Limited | Construction | 2014 |
| Future Matters Services Limited | Health & social care | 2019 |
| Future Regeneration Limited | Construction | 2021 |
| Future Security Solutions Ltd | Administrative & support | 2018 |
| Future Smoke Control Limited | Extraterritorial | 2026 |
| FVC Build Ltd | Construction | 2026 |
| G & C Design (Packaging) Ltd | Administrative & support | 1998 |
| G B Pinder Limited | Construction | 2008 |
| G H Surveyors Limited | Professional & scientific | 1998 |
| G Lane Building Services Limited | Construction | 2024 |
| G.M. Trading Overseas Limited | Wholesale & retail | 2005 |
| G.P.P. Building Contractors Limited | Construction | 1984 |
| G2B Construction Ltd | Construction | 2025 |
| G2C Group Ltd | Real estate | 2023 |
| G2C Property Ltd | Real estate | 2022 |
| Galley Fencing Ltd | Construction | 2019 |
| Galleywood Fencing Ltd | Construction | 2025 |
| Galverston Ltd | Manufacturing | 2004 |
| Gamechanger PUB Co Ltd | Hospitality | 2019 |
| Garcha NDT Ltd. | Construction | 2005 |
| Garden ERI Ltd | Construction | 2022 |
| Garden Greatness Ltd | Wholesale & retail | 2022 |
| Garfield Investments Limited | Real estate | 2020 |
| Garretail Limited | Wholesale & retail | 2024 |
| Garuda Logistics Ltd | Administrative & support | 2023 |
| Gasmarktasty Limited | Administrative & support | 2009 |
| GDE Motors Limited | Wholesale & retail | 2024 |
| GDG Automation Ltd | Manufacturing | 2007 |
| GDS Consulting Limited | Information & communication | 2016 |
| Geek Garage UK Ltd | Wholesale & retail | 2019 |
| Geko Construction Ltd | Construction | 2025 |
| Genadelta Ltd | Administrative & support | 2025 |
| Generate Interiors Limited | Construction | 2014 |
| Gentone Entertainment Ltd | Arts & recreation | 2024 |
| Gentone Events Management Ltd | Administrative & support | 2022 |
| Genuinely Confused Theatre Company CIC | Arts & recreation | 2024 |
| George Walls & Ceilings Ltd | Construction | 2017 |
| Gerard Homes Ltd | Energy | 2000 |
| GG-252-088 Limited | Real estate | 2024 |
| GGC Plastering Services Ltd | Construction | 2025 |
| Ghana Cocoa Growing Research Association Limited (the) | Professional & scientific | 1969 |
| GHL Bakery Equipment Limited | Manufacturing | 2020 |
| Gibimar Ltd | Construction | 2024 |
| Gigi Accessories Ltd | Wholesale & retail | 2007 |
| Gill 365 Commercials Limited | Wholesale & retail | 2017 |
| GJD Engineering Ltd | Administrative & support | 2011 |
| GJL Logistics Ltd | Transport & logistics | 2026 |
| GKA Accountants Ltd. | Professional & scientific | 2005 |
| GKA Management Limited | Professional & scientific | 2007 |
| Gkme Sign Services Limited | Manufacturing | 2022 |
| Glacien Glass Limited | Administrative & support | 1959 |
| Glamour on Demand Limited | Other services | 2018 |
| Glass by Yvette Ltd | Manufacturing | 2009 |
| Glass Studio Supplies Limited | Extraterritorial | 2010 |
| GLC Property Ltd | Real estate | 2025 |
| Glen Smith Audio Limited | Manufacturing | 1999 |
| Glengarry UK Limited | Administrative & support | 2000 |
| Global Tech Provider Ltd | Information & communication | 2018 |
| Globe Electronics (UK) Limited | Manufacturing | 2002 |
| Globrix Homes Limited | Real estate | 2024 |
| Globus Produce Ltd | Wholesale & retail | 2018 |
| Glynko Ltd | Professional & scientific | 2017 |
| GM Workshop Limited | Wholesale & retail | 2025 |
| Gnfs Holdings Ltd | Financial services | 2022 |
| Go 4 Green Energy Limited | Wholesale & retail | 2019 |
| Go Bonkers Limited | Arts & recreation | 2005 |
| Go Finance ME Limited | Financial services | 2025 |
| Godbolts Business Park Management Company Limited | Real estate | 2018 |
| GOF Trading S.A. & Co. | | 2004 |
| Gold & Coates Estates Limited | Real estate | 2013 |
| Gold and Blue Limited | Administrative & support | 2007 |