| GAJ Road Management Limited | Real estate | 2015 |
| Gallo Store Ltd | Wholesale & retail | 2025 |
| Galych Avto Ltd | Wholesale & retail | 2022 |
| Garcia & Partners Ltd | Professional & scientific | 2019 |
| Garibniwaj Limited | Real estate | 2013 |
| Garner & Hancock Solicitors Ltd | Professional & scientific | 2015 |
| GB Construction Training Limited | Education | 2014 |
| GB Corporation London Limited | Wholesale & retail | 2016 |
| GB Traders Ltd | Administrative & support | 2020 |
| GB& J Homes Limited | Real estate | 2023 |
| Gbashi Ltd | Wholesale & retail | 2025 |
| Gbqc Limited | Administrative & support | 2019 |
| Gbweb Ltd | Information & communication | 2026 |
| GC Aviation Ltd | Manufacturing | 2018 |
| Gcgj UK Ltd | Manufacturing | 2025 |
| Gckp Holdings Ltd | Financial services | 2025 |
| GDL Contracts Ltd | Construction | 2025 |
| Geeky Buds Ltd | Information & communication | 2023 |
| GEM Construction Services (UK) Ltd | Construction | 2010 |
| Gemini Fashion Limited | Wholesale & retail | 2017 |
| Genoprecision Health Limited | Information & communication | 2024 |
| Georgina Brett Limited | Administrative & support | 2020 |
| German Auto Studio Ltd | Wholesale & retail | 2021 |
| GES YG - Global European Services Ltd | Administrative & support | 2012 |
| GET ME Sushi Ltd | Hospitality | 2019 |
| GET SET Go Sport Ltd | Arts & recreation | 2012 |
| Getcaselaw Limited | Information & communication | 2026 |
| GG House Limited | Real estate | 2023 |
| GG-939-958 Limited | Real estate | 2025 |
| GGV Properties Ltd | Real estate | 2021 |
| GH Aesthetic Studio Ltd | Wholesale & retail | 2025 |
| GH Driving Ltd | Wholesale & retail | 2025 |
| Ghaderi Health Care Ltd | Health & social care | 2018 |
| Ghanem Developments Ltd | Construction | 2025 |
| Ghrow Limited | Other services | 2009 |
| Ghuman Investments Ltd | Administrative & support | 2007 |
| GIG Care Services Ltd | Other services | 2014 |
| Girls Brush Ltd | Construction | 2024 |
| GJP Investment Estates Ltd | Real estate | 2019 |
| Gktv QS Services Limited | Professional & scientific | 2014 |
| Glacier IS Global Limited | Information & communication | 2022 |
| Glen Holdings Limited | Financial services | 2025 |
| Glenbower Limited | Hospitality | 2017 |
| Glencoe Hunton Limited | Financial services | 2021 |
| Glengold Properties Limited | Financial services | 2025 |
| Global Express Freight Limited | Transport & logistics | 2020 |
| Global Carbon Solutions Group Ltd | Professional & scientific | 2024 |
| Global Medical Hire Limited | Professional & scientific | 2020 |
| Global Online Services Limited | Wholesale & retail | 2012 |
| Global Packbridge UK Limited | Administrative & support | 2018 |
| Globetrotters (GB) Limited | Transport & logistics | 2007 |
| Glory Consultants Ltd | Information & communication | 2012 |
| Glow Unisex Hair Ltd | Other services | 2007 |
| Glowbear Ltd | Wholesale & retail | 2025 |
| GM Carpets Ltd | Construction | 2020 |
| GMT Recruitment Limited | Administrative & support | 2005 |
| GO4 Control Ltd | Energy | 2018 |
| Goal Atlas Ltd | Information & communication | 2014 |
| Goat Meat Company Limited | Wholesale & retail | 2010 |
| Gocontinental LLP | | 2013 |
| Godwin Trade Ltd | Wholesale & retail | 2025 |
| Goforgoldperformance Ltd | Health & social care | 2021 |
| Gold Leaf Painting Limited | Construction | 2025 |
| Gold Mini Express Ltd | Wholesale & retail | 2022 |
| Golden Sky Events Ltd | Hospitality | 2024 |
| Golden Spoon Desserts Ltd | Wholesale & retail | 2026 |
| Golden Star Trading Ltd | Wholesale & retail | 2025 |
| Goldmine Gardening Ltd | Administrative & support | 2026 |
| Goldmine Property Investment Ltd | Real estate | 2019 |
| Golocal Consultancy Ltd | Wholesale & retail | 2018 |
| Gomer Music Company Limited | Information & communication | 1984 |
| Good Makhana Co. Ltd | Wholesale & retail | 2024 |
| Good Sport Global Limited | Professional & scientific | 2020 |
| Goodle Limited | Education | 2017 |
| Goodwill Consulting Services Limited | Information & communication | 2016 |
| Goodwin Lighting Limited | Manufacturing | 2016 |
| Gorf UK Limited | Information & communication | 2023 |
| Goshawk London Limited | Construction | 2018 |
| GP Management Services Ltd | Health & social care | 2022 |
| GPH (London) Limited | Construction | 2016 |
| Graafland Trading Limited | Wholesale & retail | 2017 |
| Grace Fashion & Beauty Ltd. | Other services | 2018 |
| Graftan Earn Ltd | Wholesale & retail | 2018 |
| Gramacrest 118 Limited | Real estate | 2018 |
| Gramacrest Limited | Real estate | 2017 |
| Grandway Trading Group Ltd | Wholesale & retail | 2024 |
| Granite TV Limited | Information & communication | 2017 |
| Granwood Court Freehold Limited | Households | 2022 |
| Great GAS Ltd | Construction | 2020 |
| Great House Care Home Ltd | Health & social care | 2025 |
| Great West Technology Limited | Professional & scientific | 2025 |
| Green Automation Ltd | Professional & scientific | 2026 |
| Green Diamond Limited | Administrative & support | 2011 |
| Green Line Engineering Consultants Limited | Wholesale & retail | 2016 |
| Green Ocean World Limited | Extraterritorial | 2018 |
| Green Team Handlers Limited | Transport & logistics | 2025 |
| Greener by Degrees Limited | Construction | 2014 |
| Greener Homes London Ltd | Professional & scientific | 2023 |
| Greenfinch Property Investments Limited | Real estate | 2022 |
| Grey Beanie Productions Ltd | Manufacturing | 2024 |