| Glaysher Surgical Limited | Health & social care | 2024 |
| Glazing Store Limited | Construction | 2020 |
| GLB & SON Limited | Construction | 2019 |
| GLD Boiler Care & Breakdowns Ltd | Manufacturing | 2025 |
| GLD Plumbing and Heating Limited | Construction | 2020 |
| Gleam Team Cleaning Limited | Administrative & support | 2019 |
| Gleam Team Trade Services Ltd | Administrative & support | 2024 |
| Glen Chess Ltd | Wholesale & retail | 2015 |
| Glen Harvey Music Limited | Information & communication | 2012 |
| Glenmore Gardens Management Company Limited | Real estate | 2005 |
| Glennon Composites Ltd | Professional & scientific | 2024 |
| Glenson-Hills Ltd | Construction | 2025 |
| Global Electrical (UK) Limited | Construction | 2015 |
| Global Imports (Europe) Limited | Wholesale & retail | 2023 |
| Global Inspections UK Limited | Construction | 2018 |
| Global Online Industries Limited | Arts & recreation | 2019 |
| Global Solutions UK Holdings Limited | Financial services | 2015 |
| Glory Retail Ltd | Wholesale & retail | 2020 |
| Glowing UP Limited | Wholesale & retail | 2024 |
| GM Fire Ltd | Professional & scientific | 2019 |
| GM Publishing Ltd | Information & communication | 2026 |
| GMC Foods Limited | Hospitality | 2025 |
| Gmcs Southern Ltd | Professional & scientific | 2023 |
| GMD Security Ltd | Administrative & support | 2022 |
| Gmgco Ltd | Real estate | 2023 |
| Gmgprop Ltd | Professional & scientific | 2022 |
| Gmist Limited | Information & communication | 2016 |
| GMP (Sponsorship) Limited | Professional & scientific | 2012 |
| GMP Group Holdings Limited | Financial services | 2008 |
| Go Eco Green Ltd | Construction | 2018 |
| Go-Iot Ltd | Information & communication | 2014 |
| Go-Lgv Limited | Education | 2022 |
| Goble Engineering Limited | Manufacturing | 1988 |
| Goddard Medical Services Limited | Health & social care | 2017 |
| Gogo Driving Ltd | Education | 2025 |
| Gogoebikes Ltd | Manufacturing | 2025 |
| Gojen Limited | Professional & scientific | 2019 |
| Gold Hearts Limited | Health & social care | 2022 |
| Gold Homes Holdings Ltd | Real estate | 2021 |
| Gold Homes Ltd | Construction | 2014 |
| Gold Penny Ltd | Construction | 2021 |
| Gold Star Driver Training Ltd | Education | 2025 |
| Goldaheightsglobal Limited | Real estate | 2024 |
| Goldbug Communications Ltd | Professional & scientific | 2014 |
| Goldcrest Cleaning Services Ltd | Administrative & support | 2016 |
| Golden Clinical Solutions Ltd | Health & social care | 2019 |
| Golden Days Care Services Ltd | Health & social care | 2023 |
| Golden Gold Global Limited | Health & social care | 2023 |
| Golden Grill Waterlooville Ltd | Hospitality | 2025 |
| Golden Sparrows Properties Ltd | Real estate | 2024 |
| Golden Village Resort Limited | Real estate | 2013 |
| Goldtask Limited | Construction | 2025 |
| Gomummy Consulting Ltd. | Administrative & support | 2023 |
| Good Company Barbershop Ltd | Other services | 2023 |
| Good Things Capital Limited | Financial services | 2026 |
| Good View Cowplain Limited | Hospitality | 2021 |
| Goose Green Dulwich SPV Ltd | Real estate | 2022 |
| Gordon Road Developments Holdings Limited | Financial services | 2020 |
| Gorilla Grapplers Ltd | Arts & recreation | 2024 |
| Gorilla PAY Ltd | Wholesale & retail | 2021 |
| Gosford Court Ltd | Construction | 2019 |
| Gosport Bathroom Solutions Ltd | Real estate | 2025 |
| Gosport Holiday Rentals Limited | Hospitality | 2011 |
| Gosport Property Solutions Ltd | Real estate | 2025 |
| Goto GAS Limited | Administrative & support | 2012 |
| Goulding Contractors Ltd | Construction | 2020 |
| Gourmet Spice Hub Ltd | Hospitality | 2024 |
| GP Composites Ltd | Manufacturing | 2024 |
| GPS Lead Generation Limited | Information & communication | 2024 |
| GPS Southern Limited | Construction | 2018 |
| Grace and Care 24X7 Ltd | Administrative & support | 2021 |
| Grace Hair Extensions Ltd | Other services | 2024 |
| Grace My Homes Ltd | Real estate | 2022 |
| Graceland Refurbishments Ltd | Construction | 2026 |
| Gracias Homes Ltd | Real estate | 2024 |
| Graftair Ltd | Manufacturing | 2025 |
| Graham's Properties Ltd | Real estate | 2021 |
| Grand Prix Farriers Limited | Agriculture & fishing | 2022 |
| Grande Properties Management Ltd | Real estate | 2024 |
| GRANGE16 Limited | Wholesale & retail | 2025 |
| Grant Holdings Limited | Professional & scientific | 2005 |
| Grape Escape Bournemouth Limited | Administrative & support | 2024 |
| Gravitas Partners Limited | Professional & scientific | 2025 |
| Gray Property Management Limited | Real estate | 2006 |
| Grayrock Ltd | Professional & scientific | 2009 |
| Grayrock Properties Limited | Real estate | 2016 |
| Graysands Kitchen Services Ltd. | Construction | 2001 |
| GRD Solutions Ltd | Construction | 2023 |
| Great Fire of London Trail Game App Limited | Information & communication | 2019 |
| Greatvibesdistribution Limited | Wholesale & retail | 2024 |
| Greatwave Developments Ltd | Real estate | 2023 |
| Greatwave Group Ltd | Professional & scientific | 2018 |
| Green Arrow Gardening Ltd | Administrative & support | 2024 |
| Green Building Group Limited | Professional & scientific | 2001 |
| Green Building Maintenance Limited | Other services | 1998 |
| Green Capital Building Finance LP | | 2024 |
| Green Capital Building Premier Microfinance Group LP | | 2024 |
| Green Capital Foxy Financial Depository LLP | | 2024 |
| Green Capital Investment Group LP | | 2024 |
| Green Capital Premier Financial Depository LP | | 2024 |