| Fusco Capital Group Limited | Financial services | 2023 |
| Fusion 10 Joinery Limited | Administrative & support | 2018 |
| Fusion Fresh Ltd | Wholesale & retail | 2021 |
| Fusion Wellbeing Ltd | Other services | 2024 |
| Future Financial Services and Protection Ltd | Financial services | 2025 |
| Future Proof Planning Limited | Financial services | 2023 |
| Future Property Limited | Real estate | 2004 |
| Future Realm Holdings Limited | Professional & scientific | 2013 |
| Future System Installations Ltd | Professional & scientific | 2025 |
| Future Vision Child Care Ltd | Real estate | 2019 |
| Future Vision Properties Limited | Real estate | 2022 |
| Futureform Limited | Real estate | 2018 |
| Futures Housing Limited | Real estate | 2024 |
| Futures Without Borders CIC | Administrative & support | 2023 |
| Fvrf Security Limited | Financial services | 2025 |
| Fwtl Limited | Hospitality | 2020 |
| Fxbonds.Com Limited | Extraterritorial | 2022 |
| FZ 2024 Ltd | Arts & recreation | 2024 |
| FZ Property Holdings Ltd | Real estate | 2024 |
| G & B Body Repairs Ltd | Wholesale & retail | 2010 |
| G & C Carpentry Limited | Construction | 2015 |
| G & J Supermarkets Limited | Wholesale & retail | 2013 |
| G & L Davies Properties Limited | Real estate | 2024 |
| G & R Rentals Ltd | Real estate | 2024 |
| G & S Eyecare Limited | Health & social care | 2016 |
| G & T Associates (Services) Limited | Administrative & support | 2005 |
| G & T Transport Limited | Transport & logistics | 2000 |
| G Allan Carpentry Ltd | Construction | 2023 |
| G C 3 Ltd | Information & communication | 2004 |
| G C B (Leisure) Limited | Real estate | 1994 |
| G D S Analytics Limited | Information & communication | 2020 |
| G G R Letting Limited | Real estate | 2001 |
| G Harris Vehicle Repairs Ltd | Wholesale & retail | 2024 |
| G I Green Limited | Professional & scientific | 2021 |
| G J Willett & SON Limited | Administrative & support | 2003 |
| G L Jones Haulage Limited | Transport & logistics | 2004 |
| G Lewis Building Solutions Ltd | Administrative & support | 2017 |
| G Marketing Solutions Ltd | Information & communication | 2016 |
| G P Environmental and Tree Services Ltd | Administrative & support | 2021 |
| G Pegler Fitness Ltd | Arts & recreation | 2025 |
| G R D Limited | Construction | 2005 |
| G S Plumbing Services Ltd | Construction | 2019 |
| G T Satellites Ltd | Wholesale & retail | 2002 |
| G&B Property Investments Ltd | Construction | 2024 |
| G&F Property Limited | Real estate | 2025 |
| G&G Developments (Swansea) Ltd | Real estate | 2025 |
| G&G Medical & Legal Services Ltd | Health & social care | 2025 |
| G&M Industries Ltd | Professional & scientific | 2023 |
| G&P Afro Restaurant Limited | Hospitality | 2023 |
| G. Ford Ltd | Professional & scientific | 2016 |
| G. M. E. Northern Properties Limited | Construction | 2021 |
| G.B Industries Ltd | Wholesale & retail | 2025 |
| G.C. Body Repairs Limited | Manufacturing | 2017 |
| G.D. Spectacle Wear Limited | Wholesale & retail | 1974 |
| G.D.R Insulated Glass Limited | Manufacturing | 2000 |
| G.Evans & C.James Landscapes & Building Limited | Construction | 2014 |
| G.G. Transport Solutions Limited | Transport & logistics | 2025 |
| G.G.P. Glass Limited | Manufacturing | 2000 |
| G.I.P.L. Holdings Limited | Financial services | 2025 |
| G.M. Williams Plant Limited | Construction | 2011 |
| G.Paulsullivan Property Services Ltd | Households | 2015 |
| G.S.P Community Regeneration Partnership | Other services | 2005 |
| G.W. Seafood Limited | Wholesale & retail | 2004 |
| G.W.T. Consulting Ltd | Professional & scientific | 2020 |
| G1 GEC Limited | Administrative & support | 2010 |
| G2SMILE Ltd | Health & social care | 2009 |
| G7 Carpentry Services Limited | Manufacturing | 2026 |
| GA Food Retail Ltd | Wholesale & retail | 2021 |
| GA Jones and Sons Ltd | Real estate | 2025 |
| GA Power Ltd | Construction | 2025 |
| GA Property Group Limited | Real estate | 2026 |
| GAB Management Limited | Real estate | 2008 |
| Gablers Limited | Hospitality | 2015 |
| Gabriel Hall Developments Limited | Real estate | 2017 |
| Gaby & Dulcie Holdings Ltd | Financial services | 2016 |
| Gadaco Ltd | Professional & scientific | 2021 |
| Gadael Cwmni Ltd | Hospitality | 2018 |
| Gadget Giant Ltd | Wholesale & retail | 2011 |
| Gaia Enabled Limited | Wholesale & retail | 2020 |
| Gaia Hair Design Ltd | Other services | 2022 |
| Gainz With the GOV Ltd | Arts & recreation | 2024 |
| Galathea Marine Consultants Ltd. | Professional & scientific | 2015 |
| Galbox Limited | Administrative & support | 1999 |
| Gale Software Limited | Information & communication | 2003 |
| Galiam Developments Limited | Real estate | 2025 |
| Gallagher Painting & Decorating Limited | Construction | 2016 |
| Gameday Lager Ltd | Wholesale & retail | 2025 |
| Gamedigits Ltd | Information & communication | 2010 |
| Games Agency Limited | Information & communication | 2009 |
| Gametime Consultancy Limited | Information & communication | 2023 |
| Gamewaves Ltd | Information & communication | 2019 |
| GAP Alternative Fuels Limited | Water & waste | 2018 |
| GAP Housing Ltd | Real estate | 2021 |
| GAP Real Estate Ltd | Real estate | 2024 |
| Gapp Property Enterprises Limited | Professional & scientific | 2001 |
| GAR Carpentry and Building Ltd | Construction | 2020 |
| Garage 4140 Community Interest Company | Health & social care | 2025 |
| Garage Doors Repaired Installations Limited | Other services | 2024 |
| Garden Aquarium Limited | Wholesale & retail | 2016 |
| Garden N' Glow Limited | Administrative & support | 2024 |