| George Partners Limited | Health & social care | 2010 |
| Gerlach Customs Services UK Limited | Transport & logistics | 2012 |
| GG-209-566 Limited | Real estate | 2023 |
| GG-756-596 Limited | Real estate | 2021 |
| Ggoldtransportt Ltd | Transport & logistics | 2023 |
| Ghar Housing Ltd | Real estate | 2017 |
| Ghassane London Trading Ltd | Financial services | 2024 |
| Gholia Limited | Real estate | 2022 |
| Ghost Productions Ltd | Arts & recreation | 2025 |
| GHP London Ltd | Construction | 2025 |
| Ghuman & Sons Construction Ltd | Construction | 2024 |
| Gift Candle Ltd | Manufacturing | 2023 |
| Gift Pack UK Ltd | Administrative & support | 2024 |
| GIG Search Ltd | Arts & recreation | 2017 |
| Giggle Ltd | Wholesale & retail | 2026 |
| Gilbane Contracts Ltd | Construction | 2025 |
| Gill 22 G Roofing Limited | Construction | 2024 |
| Gillco Construction Ltd | Construction | 2019 |
| Gillian Conradie Associates Limited | Professional & scientific | 2023 |
| Gills V&C Transport Ltd | Transport & logistics | 2026 |
| Gillspropertiesldn Ltd | Real estate | 2025 |
| GJD Ventures Ltd | Real estate | 2026 |
| GL1 Storage Ltd | Transport & logistics | 2020 |
| Glalcontracts Ltd | Construction | 2024 |
| Glamber Ltd | Wholesale & retail | 2023 |
| Gleeson Management Limited | Households | 1989 |
| Glenavon Associates Ltd. | Information & communication | 2015 |
| Global 28 Logistics Ltd | Transport & logistics | 2025 |
| Global Digital Streams Ltd | Financial services | 2025 |
| Global Health Capacity Ltd | Information & communication | 2015 |
| Global Hi-Tech Constructions Ltd | Construction | 2016 |
| Global Medi - Call Limited | Health & social care | 2000 |
| Global Scholar Advisory Ltd | Professional & scientific | 2026 |
| Global Wellness Solutions Ltd | Health & social care | 2015 |
| Global-Hitech Limited | Construction | 2013 |
| Globe Air Cargo Limited | Transport & logistics | 1989 |
| Globe Autos Ltd | Wholesale & retail | 2025 |
| Glow the Tanning Studio Limited | Other services | 2023 |
| Gnaneshwari IT Solutions Limited | Information & communication | 2010 |
| Go Building (London) Ltd | Construction | 2019 |
| Go Park Ltd | Other services | 2025 |
| GOH Cooper Ltd | Transport & logistics | 2025 |
| Gold Mine Holdings Limited | Financial services | 2026 |
| Gold Tech Solutions Ltd | Information & communication | 2008 |
| Golden Plant Services Limited | Other services | 2023 |
| Goldenlay Foods Limited | Extraterritorial | 1997 |
| Goldenox Ltd | Other services | 2025 |
| Gollen Building Services Ltd | Construction | 2023 |
| Gondkar's Consulting Limited | Information & communication | 2016 |
| Gonni Holdings Limited | Professional & scientific | 2025 |
| Gonzalesl Ltd | Health & social care | 2021 |
| Goodel Ltd | Transport & logistics | 2024 |
| Goodwins Maintenance Limited | Households | 2025 |
| Gorm Energy Limited | Professional & scientific | 2024 |
| Gorski Group Ltd | Information & communication | 2025 |
| GR Engineerings Service Ltd | Wholesale & retail | 2024 |
| Grace Hair Makeup and Beauty Ltd | Other services | 2024 |
| Grafted Construction Limited | Construction | 2024 |
| Grand Dynamics Ltd | Wholesale & retail | 2021 |
| Grange Court (Staines) Management Company Limited | Households | 1988 |
| Grange Place (Laleham) Maintenance Company Limited | Households | 1969 |
| Gravasi Ltd | Transport & logistics | 2023 |
| Gray&Grace Co Limited | Arts & recreation | 2025 |
| Graycon Ltd | Information & communication | 2011 |
| GRB Plumbing & Heating Limited | Construction | 2016 |
| Green Borne Associate Limited | Professional & scientific | 2021 |
| Green Heathrow Parking Ltd | Transport & logistics | 2024 |
| Green-Light Gecko Limited | Arts & recreation | 2025 |
| Greenami Ltd | Administrative & support | 2014 |
| Greenfields 24 Limited | Information & communication | 2015 |
| Greenwoods Cleaning Limited | Other services | 2009 |
| Gregkom Ltd | Construction | 2014 |
| Gresham Court (58-60 Gresham Road) Residents Association Limited | Real estate | 1986 |
| Grey and Gold Ltd | Professional & scientific | 2024 |
| Greyhound Court, 82 Brighton Road, Redhill, Surrey Management Company Limited | Households | 2011 |
| Grey’S & Green’S Solutions Ltd | Real estate | 2024 |
| GRG061 Ltd | Real estate | 2023 |
| Griffin Property Management Ltd | Real estate | 2023 |
| Grillfinity Ltd | Hospitality | 2026 |
| GSA36 Trading Ltd | Real estate | 2024 |
| GSC London Ltd | Transport & logistics | 2014 |
| GSF Shutter and Shopfront Ltd | Construction | 2025 |
| GSM Property Management Ltd | Construction | 2025 |
| GSS Software Ltd | Information & communication | 2014 |
| GTP Build Contractors Ltd | Construction | 2025 |
| Guardian Surveying Ltd | Construction | 2023 |
| Guerrilla Picture Factory Limited | Professional & scientific | 2019 |
| Guldeep Singh Ltd | Real estate | 2024 |
| Gurbaaz Haulage Ltd | Transport & logistics | 2026 |
| Gurutaa Consulting Ltd | Wholesale & retail | 2016 |
| Gwendoline Court (Freehold) Limited | Households | 2012 |
| H & J Logistics Limited | Transport & logistics | 2012 |
| H & R Suppliers Ltd | Wholesale & retail | 2021 |
| H London Chauffeur Ltd | Transport & logistics | 2022 |
| H S Business & PR Consultant Ltd | Professional & scientific | 2010 |
| H S Planning Limited | Construction | 2015 |
| H&A Property Global Investments Ltd | Real estate | 2025 |
| H&A Property UK Investments Ltd | Real estate | 2025 |
| Hadiebatjo Ltd | Wholesale & retail | 2015 |
| Hadom Consulting Ltd | Administrative & support | 2025 |