| G.P.T. Engineering Supplies Limited | Wholesale & retail | 1989 |
| G.W.E Logistics Limited | Transport & logistics | 2006 |
| G29 Property Limited | Financial services | 2026 |
| G2M Ltd | Wholesale & retail | 2022 |
| Gafou International Trading Company Limited | Wholesale & retail | 2026 |
| Gaia Balance Training Limited | Extraterritorial | 2021 |
| Gainsborough Investments Limited | Real estate | 2009 |
| Galaxy Engineering Services Ltd | Information & communication | 2021 |
| Galaxyx Ltd | Wholesale & retail | 2021 |
| Galene Medical Ltd | Health & social care | 2024 |
| Gallery Photography Media Limited | Information & communication | 2009 |
| Galliers Healthcare Ltd | Health & social care | 2024 |
| Gamifi Solutions Limited | Professional & scientific | 2011 |
| Gangai Trade Co., Ltd | Wholesale & retail | 2024 |
| Ganlitong Limited | Wholesale & retail | 2023 |
| Gaochu Trading Co., Ltd | Wholesale & retail | 2024 |
| Gaolgate Coffee Ltd | Hospitality | 2025 |
| Garden Team Ltd | Administrative & support | 2012 |
| Gardenscape (Hednesford) Limited | Administrative & support | 2008 |
| Garma Industry Enterprise Co., Ltd | Manufacturing | 2022 |
| GAS, Plumb and Heat Services Limited | Construction | 2023 |
| Gatehouse Mews Stafford Management Company Limited | Real estate | 2009 |
| Gateway Press Ltd | Wholesale & retail | 2022 |
| GB Jigsaws (Retail) Ltd | Wholesale & retail | 2026 |
| GB Jigsaws Limited | Manufacturing | 2020 |
| GB Short Stays Ltd | Hospitality | 2023 |
| GB Solutions Group Ltd | Construction | 2025 |
| GB Trump Ultra Co., Ltd | Wholesale & retail | 2021 |
| GB Yarns (Staffordshire) Ltd | Wholesale & retail | 2023 |
| GBC Investments | Financial services | 2023 |
| GBF Aerials Limited | Manufacturing | 2007 |
| Gbmi- Limited | Information & communication | 2025 |
| Gbreeze Ltd. | Information & communication | 2024 |
| GCB Design Solutions Limited | Professional & scientific | 2007 |
| GCB Homes Limited | Real estate | 2019 |
| Gcdong Business Ltd | Wholesale & retail | 2025 |
| GCL Lettings Limited | Real estate | 2017 |
| Gdgreen Engineering Ltd | Professional & scientific | 2026 |
| GDL Tech Consultancy Ltd | Information & communication | 2025 |
| Gdsales Ltd | Wholesale & retail | 2021 |
| GE Vernova Pension Trust Limited | Professional & scientific | 1998 |
| GEE Skin Health Ltd | Health & social care | 2025 |
| Gefa Processtechnik GmbH Limited | Professional & scientific | 2012 |
| GEI Limited | Construction | 2018 |
| Geluja Limited | Administrative & support | 2022 |
| GEM Branding Ltd | Professional & scientific | 2022 |
| Gemcare South West Limited | Health & social care | 2013 |
| General Guarantee Collections Limited | Financial services | 2003 |
| General Power International Trade Limited | Extraterritorial | 2013 |
| Generate Events Limited | Administrative & support | 2010 |
| Generator Solutions AS Limited | Manufacturing | 2010 |
| Geneshall Limited | Real estate | 1995 |
| Genial Consulting Ltd | Information & communication | 2024 |
| Genietec Innovations Limited | Information & communication | 2023 |
| Genm Trading Co., Ltd | Wholesale & retail | 2025 |
| Gentlemen Racing Club Limited | Arts & recreation | 2026 |
| Genuine Fakes Holdings Limited | Arts & recreation | 2022 |
| Geocam Contracts Limited | Construction | 2007 |
| Geological Services Ltd | Extraterritorial | 2000 |
| Geonexus Insights Limited | Administrative & support | 2025 |
| Georccge DON Ltd | Manufacturing | 2024 |
| Georgie's Canalside Cruising Ltd | Hospitality | 2024 |
| German JBP Business Management Group (UK) Ltd | Manufacturing | 2024 |
| Geronimo Consulting Ltd. | Professional & scientific | 2011 |
| Gerontius Auction Limited | Wholesale & retail | 2022 |
| Gerrard Electrical Contractors Limited | Construction | 2004 |
| Gerusa Ltd | Professional & scientific | 2025 |
| Gesaiter Group Limited | Manufacturing | 2021 |
| GET 4 Solutions Limited | Information & communication | 2012 |
| GET Baked Potato Co Ltd | Hospitality | 2026 |
| GET Dusted Limited | Administrative & support | 2025 |
| GET Power Solutions Ltd | Manufacturing | 2014 |
| GET SET Carpenters Ltd | Administrative & support | 2022 |
| GET2COP CIC | Other services | 2022 |
| Getley (UK) Limited | Manufacturing | 2006 |
| Getley Holdings Ltd. | Real estate | 2015 |
| Getley Properties Limited | Real estate | 2018 |
| Gevptl Property Nominee Company NO. 1 Limited | Extraterritorial | 2023 |
| Gevptl Property Nominee Company NO. 2 Limited | Extraterritorial | 2023 |
| Geys Limited | Real estate | 1963 |
| Gg’S Bar Limited | Hospitality | 2026 |
| GH Plumbing & Heating Services Ltd | Construction | 2015 |
| Ghiks Ltd | Real estate | 2014 |
| Gibbo's Properties UK Limited | Real estate | 2017 |
| Gicam Ltd. | Manufacturing | 2012 |
| Giftware Enterprises Limited | Manufacturing | 2006 |
| Giivok Ltd | Transport & logistics | 2019 |
| Giles Safety Solutions Limited | Professional & scientific | 2025 |
| GJB Truck & Trailer Sales Ltd | Administrative & support | 2021 |
| GJM Roofing and Guttering Ltd | Construction | 2019 |
| Glamour Gaze Limited | Wholesale & retail | 2025 |
| Glamour International Investment UK Limited | Extraterritorial | 2018 |
| Glasscrete Limited | Manufacturing | 1999 |
| Glazey Days Cornwall Ltd | Hospitality | 2026 |
| GLB Electrical Ltd | Construction | 2018 |
| Glebelands Sports Association Limited | Arts & recreation | 1979 |
| GLH Growing Trading Company Limited | Wholesale & retail | 2021 |
| GLM Aesthetics Ltd | Other services | 2026 |
| Global Dewu Group Ltd | Wholesale & retail | 2022 |
| Global Exploration Solutions Limited | Professional & scientific | 2022 |