| GB Gelato Passion Limited | Hospitality | 2024 |
| GB Minifootball Union Ltd | Arts & recreation | 2017 |
| GBC Fastfood Ltd | Hospitality | 2024 |
| Gbolates Global Resources (UK) Ltd | Wholesale & retail | 2021 |
| GCC IQ Limited | Education | 2025 |
| Gcludd Limited | Real estate | 2025 |
| GDC Property NW Ltd | Real estate | 2024 |
| Gdft Pizza Ltd | Hospitality | 2023 |
| Gedeihen Ltd | Construction | 2019 |
| GEE Estates Ltd | Real estate | 2021 |
| GEE Property Limited | Real estate | 2026 |
| Gelato 45 Limited | Administrative & support | 2020 |
| Gell & Wimbrick SPV Limited | Real estate | 2016 |
| Gelt Right Ltd | Other services | 2023 |
| Gelu Vans Sales Ltd | Wholesale & retail | 2021 |
| GEM Studios Ltd | Other services | 2017 |
| GEMINI786 Ltd | Wholesale & retail | 2024 |
| Gemma Handley Limited | Information & communication | 2025 |
| Genek Global Limited | Manufacturing | 2025 |
| General Motors Europe Limited | Administrative & support | 2011 |
| General Motors Limited | Administrative & support | 1982 |
| General Nominees Limited | Extraterritorial | 2004 |
| Generis Risk Solutions Limited | Financial services | 2023 |
| Generis Underwriting Limited | Financial services | 2018 |
| Genesis Wealth Holdings Limited | Financial services | 2022 |
| Geniusys Technology Limited | Information & communication | 2020 |
| Genora AI Ltd | Information & communication | 2025 |
| Genovi Creative Ltd. | Professional & scientific | 2020 |
| Genze Ltd | Wholesale & retail | 2025 |
| Geodecimals Ltd | Professional & scientific | 2025 |
| Geoffneilsen Limited | Construction | 2014 |
| Geokam CAD Designs Ltd | Professional & scientific | 2025 |
| Geomic Courier Ltd | Transport & logistics | 2024 |
| Geopark (UK) Limited | Financial services | 2017 |
| George Close Estates Ltd | Real estate | 2019 |
| George M7 Ltd | Real estate | 2025 |
| George Noble Limited | Wholesale & retail | 1951 |
| George Parish & Sons Limited | Water & waste | 2002 |
| Georgie Grove Limited | Construction | 2021 |
| GEOSPATIAL255 Ltd | Information & communication | 2023 |
| Geotechnical Advisory Services Limited | Administrative & support | 1994 |
| Geridges Limited | Real estate | 2022 |
| Gershon Crown Holdings Ltd | Financial services | 2023 |
| Gesheften Ltd | Real estate | 2022 |
| GET Coping Tools Ltd | Information & communication | 2020 |
| GET My Property Report Ltd | Real estate | 2019 |
| Geteen Ltd | Real estate | 2025 |
| Getwebtraffic Limited | Information & communication | 2015 |
| Gffdamian Dance Studio Limited | Wholesale & retail | 2014 |
| GFS Global Freight Services (UK) Limited | Transport & logistics | 1987 |
| GFS Global Freight Services Holdings (UK) Limited | Professional & scientific | 2007 |
| GG Hospitality Management Limited | Professional & scientific | 2012 |
| GG Trade Ltd | Other services | 2026 |
| GG-732-661 Limited | Real estate | 2021 |
| GGM Holdings Limited | Professional & scientific | 2015 |
| Ghaza Enterprise Limited | Professional & scientific | 2025 |
| GHC64 Estates Limited | Real estate | 2026 |
| Gheorghe Van Sales Limited | Wholesale & retail | 2018 |
| GHG Legal Consultant Ltd | Administrative & support | 2024 |
| Ghold Hair Luxury Ltd | Other services | 2025 |
| GHR & Co. Financial Ltd | Professional & scientific | 2026 |
| GHS Special Projects Ltd | Manufacturing | 2005 |
| GI Finance Limited | Financial services | 2017 |
| Gibfield Limited | Extraterritorial | 2002 |
| Gibrock Limited | Extraterritorial | 2003 |
| Gift Time Limited | Wholesale & retail | 2002 |
| Giftbox WS Limited | Wholesale & retail | 2020 |
| Giftwithatwist Limited | Wholesale & retail | 2013 |
| Gigi Publishing Limited | Information & communication | 2026 |
| Gigi Wigs Ltd | Other services | 2021 |
| Gigi Wigs Manchester Ltd | Other services | 2022 |
| Gigwheels Limited | Transport & logistics | 2015 |
| Gilded Whispers Ltd | Wholesale & retail | 2025 |
| Gillibrand Walks Ltd | Real estate | 2024 |
| Gimples Ltd | Wholesale & retail | 2024 |
| Gims Bukka HUT Ltd | Wholesale & retail | 2024 |
| Ginger Beard Photo Ltd | Professional & scientific | 2023 |
| Gingkobay Investments Limited | Real estate | 2012 |
| Ginton Ltd | Real estate | 2006 |
| Ginverdon Ltd | Extraterritorial | 2005 |
| Giraffe Resource Management Limited | Wholesale & retail | 2003 |
| Giros +58 Ltd | Financial services | 2023 |
| Gitex Group Ltd | Households | 2023 |
| Gitsam Limited | Extraterritorial | 2003 |
| Giving Aspirations Ltd | Information & communication | 2022 |
| Giving Group Ltd | Information & communication | 2022 |
| Gkforce Coaching Ltd | Arts & recreation | 2023 |
| GL Trafford Park Ltd | Construction | 2022 |
| GL1 Invest Ltd | Real estate | 2021 |
| Glaisdale Drive Property Ltd | Other services | 2017 |
| Glamify Beauty Aesthetics Ltd | Other services | 2025 |
| Glamorous Property Solutions Ltd | Extraterritorial | 2022 |
| Glamourista UK Ltd | Wholesale & retail | 2021 |
| Glasgow Assets Limited | Extraterritorial | 2021 |
| Glaslyn Hawking Holidays Ltd | Administrative & support | 2025 |
| Glass Globe Consulting Ltd | Education | 2021 |
| Glatt Fleisch Ltd | Wholesale & retail | 2013 |
| Glatt to Go Ltd | Wholesale & retail | 2007 |
| Gleave Investments Limited | Administrative & support | 1996 |
| Glen Nominees Limited | Professional & scientific | 2016 |