| Garaca Industries Limited | Wholesale & retail | 2019 |
| Garage Built Ltd | Wholesale & retail | 2025 |
| Garcia Enterprises Ltd | Real estate | 2020 |
| Garden Green Services Ltd | Administrative & support | 2022 |
| Garg Consulting UK Ltd | Hospitality | 2025 |
| Gariba Healthcare Ltd | Health & social care | 2023 |
| Garioch Care Limited | Health & social care | 2019 |
| Garrison Eaglewood Limited | Real estate | 2023 |
| Garry Logistic PVT Ltd | Transport & logistics | 2021 |
| Garshom Media Limited | Information & communication | 2012 |
| Garth Victor Tulloch Ltd | Financial services | 2025 |
| GAS 4 Seasons Limited | Other services | 2007 |
| GAS Certificates London Ltd | Construction | 2025 |
| GAS Certs London Ltd | Construction | 2019 |
| GAS Engineers Limited | Construction | 2017 |
| GAS Pro 786 Ltd | Construction | 2023 |
| Gasco Local Limited | Wholesale & retail | 2025 |
| Gasfix Property Services Ltd | Construction | 2025 |
| Gaspec Limited | Construction | 2022 |
| Gastro HEALTH1 Ltd | Health & social care | 2025 |
| Gastromax Limited | Wholesale & retail | 2016 |
| Gastronova Ltd | Health & social care | 2026 |
| Gateway Consultants Limited | Professional & scientific | 2019 |
| Gateway International Logistics Limited | Transport & logistics | 2022 |
| Gateway Properties & Estates Limited | Real estate | 2020 |
| Gatwick Airport Parking Spaces Limited | Transport & logistics | 2023 |
| Gautaman Ltd | Wholesale & retail | 2019 |
| Gavo Ltd | Construction | 2026 |
| GAZ Supplies Limited | Wholesale & retail | 2022 |
| Gazing Moon New Energy Technology Ltd | Manufacturing | 2022 |
| GB Apps Ltd | Information & communication | 2025 |
| GB Basra Properties Ltd | Real estate | 2025 |
| GB Building & Maintenance Solutions Ltd | Construction | 2018 |
| GB Diggers Ltd | Other services | 2018 |
| GB DMC Ltd | Administrative & support | 2021 |
| GB Films UK PVT Ltd | Professional & scientific | 2026 |
| GB Food and Wine Limited | Wholesale & retail | 2017 |
| GB Freight Ltd | Transport & logistics | 2026 |
| GB Investments Limited | Real estate | 2008 |
| GB Land & Build Ltd | Real estate | 2022 |
| GB Multi Service and Facilities Management Ltd | Extraterritorial | 2022 |
| GB Removals Ltd | Transport & logistics | 2019 |
| GB Trade & Logistics Ltd | Wholesale & retail | 2026 |
| Gbfl Community Interest Company | Education | 2025 |
| Gbfp Ltd | Construction | 2021 |
| GBU Tooling Limited | Manufacturing | 2014 |
| Gbuk Properties Limited | Real estate | 2024 |
| GC Dream Homes Ltd | Real estate | 2025 |
| GCG Holdco Limited | Financial services | 2023 |
| GCH Plumbing and Heating Services Ltd | Construction | 2016 |
| Gcse Coach Ltd | Education | 2023 |
| GD Cutz Ltd | Other services | 2025 |
| GDN Fitness & Hockey Limited | Arts & recreation | 2018 |
| GDN Transport Limited | Transport & logistics | 2008 |
| Gdpm Consultancy Ltd | Information & communication | 2023 |
| GE Company Services Ltd | Transport & logistics | 2021 |
| GE Consultancy Ltd | Information & communication | 2008 |
| GE Logistics IM Ltd | Transport & logistics | 2025 |
| GE Plus Limited | Transport & logistics | 2014 |
| Geargrip Limited | Wholesale & retail | 2025 |
| Gearshift Haulers Ltd | Transport & logistics | 2026 |
| GEE Dhillon Glazing Ltd | Construction | 2026 |
| Geeline Limited | Other services | 2024 |
| Geeta's Grandeur Limited | Real estate | 2026 |
| GEL Solutions Limited | Information & communication | 2001 |
| Geltzo Limited | Information & communication | 2023 |
| GEM Group Global Ltd | Financial services | 2018 |
| GEM JET Global Ltd | Transport & logistics | 2018 |
| Gembea Ltd | Manufacturing | 2026 |
| Gemini S.S. Ltd | Financial services | 2023 |
| Gemitor Ltd | Wholesale & retail | 2025 |
| GEN-3 Insure Limited | Financial services | 2019 |
| General Metal Fabrications Limited | Manufacturing | 2017 |
| General Senses Ltd | Extraterritorial | 2015 |
| General Services Inclusive Limited | Administrative & support | 2025 |
| Generatic Ltd | Information & communication | 2025 |
| Generis Legal Solicitors Ltd. | Professional & scientific | 2022 |
| Generis Limited | Professional & scientific | 2023 |
| Genesis Commerce Ltd | Wholesale & retail | 2026 |
| Genetic IT Ltd | Administrative & support | 2013 |
| Genius Home Improvements Limited | Construction | 2016 |
| Gennova Property Services Limited | Construction | 2025 |
| Genora Community Interest Company | Professional & scientific | 2026 |
| Genti DBM Limited | Construction | 2025 |
| Gentle First Ltd | Health & social care | 2022 |
| Genxl Ltd | Information & communication | 2015 |
| Genz Innova Ltd | Education | 2025 |
| GEO ZEN Limited | Information & communication | 2020 |
| Geo-Therm M&E Ltd | Construction | 2021 |
| Geoffrey Furber Services Limited | Administrative & support | 1979 |
| George MGA Ltd | Transport & logistics | 2018 |
| George Rentals Limited | Real estate | 2025 |
| George's Burgers Ltd | Hospitality | 2025 |
| Georgecloud Limited | Construction | 2026 |
| George`S Hairdressers Ltd | Other services | 2008 |
| Gerjpos Limited | Health & social care | 2018 |
| German Doner Slough Ltd | Hospitality | 2019 |
| Gerogeo Hairdresser Ltd | Other services | 2026 |
| Gery Ltd | Transport & logistics | 2025 |
| GES - Water Ltd | Administrative & support | 2010 |