| GB1902001B Limited | Financial services | 2019 |
| GB2004001B Limited | Financial services | 2020 |
| GB91 Holdings Ltd | Real estate | 2022 |
| Gbay Global Limited | Wholesale & retail | 2020 |
| Gbhk Services Limited | Professional & scientific | 2025 |
| GBL Builders Merchants & DIY Ltd | Wholesale & retail | 2021 |
| GBN Installation Ltd | Construction | 2024 |
| GBP Construct Limited | Construction | 2021 |
| GBR UK Limited | Administrative & support | 2018 |
| GBS 56 Ltd | Construction | 2021 |
| GC Carpentry Ltd | Manufacturing | 2016 |
| GC London Ltd | Real estate | 2017 |
| GC Motors Mobile Mechanic Ltd | Wholesale & retail | 2021 |
| GCG Fire Safety Ltd | Education | 2026 |
| GCG Retail and Commercial Ltd | Education | 2026 |
| GCP Plumbing Ltd | Construction | 2023 |
| GCT International Ltd | Information & communication | 2015 |
| Gdeden Property Investment Limited | Real estate | 2025 |
| GDG Building Ltd | Construction | 2018 |
| GDK Outdoors Ltd | Other services | 2014 |
| GDM 24/7 Emergency Plumbing & Electrical Services Limited | Construction | 2024 |
| GDM Services Limited | Construction | 2022 |
| GEA Plumbing & Heating Ltd | Construction | 2018 |
| Geades Global Limited | Information & communication | 2025 |
| Gebouw Ltd | Real estate | 2025 |
| GEC Construct Ltd | Construction | 2025 |
| Geco Property LLP | | 2018 |
| GEE Aggar & Co Limited | Professional & scientific | 2011 |
| GEE Pharma Limited | Other services | 2001 |
| GEE Studio Limited | Administrative & support | 2025 |
| Geenius Digital Ltd | Professional & scientific | 2024 |
| Geesi Construction Ltd | Manufacturing | 2023 |
| Geeta Trading Limited | Wholesale & retail | 2024 |
| Geetanjali Logistic Ltd | Transport & logistics | 2026 |
| Geetanjali Tiwari Ltd | Education | 2023 |
| Geev Arts Ltd | Information & communication | 2024 |
| Geidelberg Consulting Limited | Professional & scientific | 2026 |
| GEL Holdings Limited | Information & communication | 2016 |
| Gelcomm Ltd | Information & communication | 2017 |
| GEM Plumbing and Heating Ltd | Construction | 2022 |
| Gem-Tech Drilling & Sawing Co Limited | Construction | 2011 |
| Gemaura Home Limited | Wholesale & retail | 2024 |
| Gemera Partners Limited | Administrative & support | 2020 |
| Gemflora Jewelry Limited | Wholesale & retail | 2025 |
| Gemini Phoenix Limited | Professional & scientific | 2012 |
| Geminisoft Solutions Inc Limited | Information & communication | 2023 |
| Gemma Price Consulting Limited | Professional & scientific | 2026 |
| Gems Education Ltd | Education | 2022 |
| Gemspalaceuk Ltd | Wholesale & retail | 2025 |
| Gemstone Property Services (UK) Ltd | Real estate | 2020 |
| Gemstones & Minerals UK Limited | Extraterritorial | 2021 |
| Gemtec Ltd | Wholesale & retail | 2024 |
| GEN Car Engineering Ltd | Wholesale & retail | 2022 |
| GEN Lotus Limited | Professional & scientific | 2025 |
| Genas Estates Limited | Real estate | 2014 |
| Genco Olive OIL Limited | Wholesale & retail | 2023 |
| Geneial Therapeutics Limited | Professional & scientific | 2022 |
| General Maintenance Ltd | Construction | 2018 |
| General Produce and Fibres Limited | Other services | 1968 |
| General Projects Limited | Arts & recreation | 2012 |
| General Repair Service Ltd | Construction | 2011 |
| Generation Leader Limited | Education | 2020 |
| Generationbehind Limited | Wholesale & retail | 2026 |
| Generipol Global LLP | | 2023 |
| Generipol UK Limited | Professional & scientific | 2010 |
| Genero Consulting Limited | Information & communication | 2015 |
| Genesis Design & Building Solutions Ltd | Construction | 2023 |
| Genesis Electronics Limited | Wholesale & retail | 2015 |
| Genesis Pharmaceuticals Limited | Wholesale & retail | 1999 |
| Geneva First Ltd | Professional & scientific | 2013 |
| Geneva First Properties Ltd | Real estate | 2017 |
| Genie SP Developments Limited | Real estate | 2006 |
| Genious Foods UK Ltd | Wholesale & retail | 2023 |
| Genius Interiors Ltd | Construction | 2020 |
| Genova Analytics Ltd | Information & communication | 2025 |
| Gentle Bear Limited | Wholesale & retail | 2020 |
| Gentlecare (UK) Limited | Health & social care | 2012 |
| Gentora Limited | Wholesale & retail | 2026 |
| Genuine Parts Warehouse Ltd | Wholesale & retail | 2021 |
| Genureka Properties Ltd | Real estate | 2021 |
| Genzrentals Ltd | Administrative & support | 2025 |
| GEO Air Limited | Construction | 2020 |
| GEO K9 Security Ltd | Hospitality | 2020 |
| GEO Travels Ltd | Transport & logistics | 2020 |
| Geo&Ale Ltd | Construction | 2017 |
| Geoeng Solutions Ltd | Manufacturing | 2025 |
| Geoffrey Chinn Charitable Foundation | Health & social care | 2011 |
| Geophil Limited | Real estate | 2013 |
| Geopolitiq Ltd | Other services | 2025 |
| George & Doina Ltd | Education | 2015 |
| George Baldwin Trading Limited | Extraterritorial | 2018 |
| George Bourne Limited | Health & social care | 2022 |
| George Formwork Limited | Construction | 2022 |
| George Mikhaeil Ltd | Wholesale & retail | 2024 |
| George Sanding Flooring Company Ltd | Construction | 2023 |
| George Services Ltd | Construction | 2023 |
| George Williams Audio Ltd | Manufacturing | 2026 |
| George's Plaice Ltd | Hospitality | 2025 |
| Georgetown University (USA) UK Initiatives Organisation | Education | 2008 |
| Georgiou Motion Ltd | Professional & scientific | 2019 |