| Future State Architecture Limited | Information & communication | 2016 |
| Future Talent Sports Ltd | Extraterritorial | 2023 |
| Future Tech & Gadget Ltd | Wholesale & retail | 2025 |
| Future Visions Services Ltd | Information & communication | 2018 |
| Futurefinds Trading Ltd | Wholesale & retail | 2026 |
| Futureplus Sports Ltd | Manufacturing | 2023 |
| Futuristic Renovation Ltd | Construction | 2019 |
| Fuudz Limited | Wholesale & retail | 2025 |
| Fuziron Ltd | Wholesale & retail | 2023 |
| FV Home Limited | Wholesale & retail | 2018 |
| FX Edge Ltd | Education | 2009 |
| FX Exchange Ltd | Other services | 2012 |
| FZ Recruitment Limited | Professional & scientific | 2025 |
| FZR Traders Limited | Professional & scientific | 2022 |
| G & a Electrical LLP | | 2018 |
| G & B Foods Ltd | Hospitality | 2024 |
| G & B Together Limited | Real estate | 2024 |
| G & C Produce (Slough) Limited | Agriculture & fishing | 2003 |
| G & D Hair Ltd | Other services | 2015 |
| G & E Private Limited | Professional & scientific | 2025 |
| G & G Transportation Ltd | Transport & logistics | 2023 |
| G & K Offlicence Ltd | Wholesale & retail | 2018 |
| G & S Site Services Ltd | Construction | 2019 |
| G & W Roofing and Building Ltd | Construction | 2025 |
| G and G Dental Ltd | Health & social care | 2021 |
| G and Singh Ltd | Construction | 2022 |
| G D Evans & Sons (Properties) Ltd | Real estate | 2018 |
| G Eagle Construction Ltd | Administrative & support | 2016 |
| G Hair Studio Limited | Other services | 2020 |
| G Interiors UK Ltd | Manufacturing | 2022 |
| G J Consultancy UK Limited | Professional & scientific | 2015 |
| G M Travels (Slough) Limited | Wholesale & retail | 2025 |
| G N Builder Hayes Ltd | Construction | 2019 |
| G Punjab Takeaway Ltd | Hospitality | 2024 |
| G Robson Investments Limited | Financial services | 2025 |
| G Room (Berks) Ltd | Other services | 2015 |
| G S Uppal Security Limited | Administrative & support | 2026 |
| G Tech IT Services Ltd | Other services | 2019 |
| G Wingss Limited | Hospitality | 2020 |
| G&A Enterprises Group Ltd | Construction | 2025 |
| G&D Fabrication Ltd | Manufacturing | 2019 |
| G&G Coffee Ltd | Wholesale & retail | 2025 |
| G&H Private Limited | Transport & logistics | 2016 |
| G&J Construction International Ltd | Construction | 2019 |
| G&K Direct Ltd | Wholesale & retail | 2021 |
| G&M Distribution Ltd | Wholesale & retail | 2026 |
| G&M Waste Management Ltd | Water & waste | 2026 |
| G&N Bedroom and Kitchen Ltd | Manufacturing | 2021 |
| G&N Properties Investments Ltd | Real estate | 2023 |
| G-Rail (London) Ltd | Professional & scientific | 2011 |
| G. I. I. (NO 2) Fund | | 1988 |
| G. K. Plant Ltd | Administrative & support | 2011 |
| G.& W.Heyland Properties Limited | Real estate | 1959 |
| G.A Dreams Ltd | Real estate | 2020 |
| G.B Transport Solutions Ltd | Professional & scientific | 2017 |
| G.D Communications Ltd | Information & communication | 2015 |
| G.I.K Services Ltd | Construction | 2020 |
| G.J.Runham Plumbing and Heating Services Limited | Administrative & support | 2017 |
| G1 Mobile Tyre Services Ltd | Construction | 2020 |
| G8 Shipping Ltd | Transport & logistics | 2026 |
| GA Caro Logistics Limited | Transport & logistics | 2020 |
| GA Financials Limited | Professional & scientific | 2008 |
| GA Properties London Limited | Real estate | 2015 |
| Ga&A Developments Ltd | Real estate | 2012 |
| Gaaar Construction Ltd | Construction | 2023 |
| Gaba of Berkshire Ltd | Real estate | 2025 |
| Gable END Investments Ltd | Real estate | 2015 |
| Gabriel Rock Ltd | Financial services | 2021 |
| Gabriel SOH Ltd | Health & social care | 2017 |
| Gabriel Stone Ltd | Households | 2025 |
| Gabriels Reading Ltd | Administrative & support | 2023 |
| Gadgetology Ltd | Wholesale & retail | 2023 |
| Gadgets & Gift Slough Limited | Wholesale & retail | 2022 |
| Gadgetshut Trading Ltd | Wholesale & retail | 2014 |
| Gadwell Caremore Limited | Health & social care | 2017 |
| Gaff Removals & Cleaning Ltd | Transport & logistics | 2026 |
| Gafha’S Mart Limited | Wholesale & retail | 2025 |
| Gagan Tech Ltd | Information & communication | 2020 |
| Gaganpreet Transport Ltd | Transport & logistics | 2025 |
| Gagans Services Ltd | Transport & logistics | 2025 |
| Gains Gym Ltd | Administrative & support | 2016 |
| Gakhal Properties Investment Ltd | Real estate | 2025 |
| Galactic Solutions Ltd | Administrative & support | 2015 |
| Galaxy Satellites Limited | Transport & logistics | 2013 |
| Galaxy Travel Ltd | Administrative & support | 2020 |
| Galaxy View Limited | Real estate | 2018 |
| Gali Gril Ltd | Hospitality | 2024 |
| Galini Systems Ltd | Information & communication | 2025 |
| Gallanto Ltd | Professional & scientific | 2026 |
| Galore Consultant Ltd | Administrative & support | 2014 |
| GAM School of Motoring Limited | Education | 2023 |
| Gambrill Solutions Limited | Information & communication | 2023 |
| Game Ready Limited | Education | 2021 |
| Gamma Fire Healing Ltd | Health & social care | 2023 |
| Gammons Construction Group Ltd | Construction | 2024 |
| Gandham Developments Limited | Construction | 2024 |
| Ganesh Jewels Ltd | Wholesale & retail | 2013 |
| Gant Construction Limited | Construction | 2018 |
| Ganymede Property Investments Ltd | Real estate | 2023 |
| GAO Trading Ltd | Wholesale & retail | 2025 |