| GJA Investments Ltd | Real estate | 2005 |
| GJS Business Services Limited | Professional & scientific | 2002 |
| GKM Associates Ltd | Professional & scientific | 2003 |
| GL Essex Carehome Ltd | Health & social care | 2017 |
| GLA Roofing Ltd | Construction | 2003 |
| Gladeridge Investments Limited | Real estate | 2000 |
| Gladmik Limited | Information & communication | 2007 |
| Gladstone Investments Limited | Real estate | 1987 |
| Glamex Limited | Financial services | 2016 |
| Glass Always Full Ltd | Other services | 2024 |
| Glasscocks Properties Limited | Real estate | 1976 |
| Glen Construction Company Limited | Construction | 1970 |
| Glen Investments Limited | Real estate | 1971 |
| Glen Spares Limited | Manufacturing | 2007 |
| Glen Tyre Services Limited | Administrative & support | 1982 |
| Glendown Services Limited | | 1982 |
| Glenfill Limited | | 1991 |
| Glengariff Company Limited | Health & social care | 1995 |
| Glenhale Limited | Households | 1987 |
| Glenholme Nursery Limited | Agriculture & fishing | 2004 |
| Glenwood Court Management Limited | Real estate | 1997 |
| Glenwood Estate Agents Limited | Real estate | 2005 |
| Glenwood Home Solutions Ltd | Construction | 2026 |
| Glideshaw (International) Limited | | 1985 |
| Global Consolidations Limited | | 1982 |
| Global Dreams Investment Limited | | 2006 |
| Global ER Consultancy Ltd | Mining & quarrying | 2006 |
| Global Freight Connections Limited | Administrative & support | 2002 |
| Global Hukuk Consultancy Ltd | Professional & scientific | 2020 |
| Global IN2NET Limited | Information & communication | 1998 |
| Global Mart Ltd | Financial services | 2006 |
| Global Online Directory Limited | Administrative & support | 1995 |
| Global Positive Impacts Ltd | Other services | 2024 |
| Global Prestige Vehicles Ltd | Wholesale & retail | 2022 |
| Global Tradeship Ltd | Wholesale & retail | 2024 |
| Global Transfer Services Limited | Transport & logistics | 2023 |
| Global Ventilation Services Limited | Administrative & support | 2009 |
| Global Web Products Ltd | Wholesale & retail | 2006 |
| Globalcart Solutions Ltd | Information & communication | 2026 |
| Globalcharge Limited | Information & communication | 2007 |
| Globex 2000 Limited | Financial services | 1993 |
| Glomgage Limited | | 1984 |
| Glorious Homes & Services Limited | Real estate | 2022 |
| Glory Unique Fashions Limited | Wholesale & retail | 2007 |
| Gloucester Place (Witham) Management Company Limited | Administrative & support | 1987 |
| Glover & Howe Limited | Financial services | 1988 |
| Glowe Store Limited | Wholesale & retail | 2026 |
| Glowstry Ltd | Wholesale & retail | 2025 |
| GM Exterior Profiles Limited | Wholesale & retail | 2004 |
| GM Vendor Ltd | Hospitality | 2026 |
| GMC Commercial Repairs Limited | Wholesale & retail | 2002 |
| GNB Events UK Ltd | Hospitality | 2024 |
| GNB Media Limited | Administrative & support | 1997 |
| Gninda Enterprise Ltd | Wholesale & retail | 2024 |
| GNT Furniture Limited | Wholesale & retail | 2019 |
| Go Car Hire Ltd | Administrative & support | 2024 |
| Go Massive Limited | Wholesale & retail | 2025 |
| GO2MYCLOUD Limited | Other services | 2004 |
| Goblins Cards & Collectables Ltd | Manufacturing | 2025 |
| Godborne Ltd | Wholesale & retail | 2022 |
| Godly Woman of Substance | Health & social care | 2015 |
| Gold and Diamonds(Uk) Ltd | Wholesale & retail | 2020 |
| Gold Plate Cuisine Limited | Hospitality | 2025 |
| Gold Street Management Limited | Households | 1973 |
| Gold-Tech Ltd | Information & communication | 2026 |
| Golden Crust Bakery Limited | Manufacturing | 2005 |
| Golden Dimensions Ltd | Professional & scientific | 2003 |
| Golden Dragon Harlow Essex Ltd | Hospitality | 2025 |
| Golden Elephant Limited | Professional & scientific | 2002 |
| Golden Gate Int'L Trading & Hospitality PVT Ltd | Wholesale & retail | 2026 |
| Golden Generation England Limited | Information & communication | 2023 |
| Golden Orient Properties Ltd | Financial services | 2022 |
| Golden PAN Limited | Hospitality | 2021 |
| Golden Platter (Mayland) Limited | Manufacturing | 2003 |
| Golden Soaps Ltd | Manufacturing | 2006 |
| Golden Touch Murat Limited | Other services | 2019 |
| Goldgleam Limited | Households | 1986 |
| Goldlabel Apps Ltd | Information & communication | 2024 |
| Goldman & Fine Group Ltd. | Administrative & support | 2017 |
| Goldpasta Limited | Wholesale & retail | 1976 |
| Goldpath Services Limited | Administrative & support | 2007 |
| Goldsborough Properties Limited | Professional & scientific | 2005 |
| Goldshire Ltd | Real estate | 1999 |
| Goldstone Property Group Limited | Real estate | 2023 |
| Goldsworth Systems Limited | Information & communication | 2002 |
| Golive 12 Ltd | Manufacturing | 2025 |
| Gonder Ltd | Transport & logistics | 2021 |
| Goodmayes Hotel (Ilford) Ltd | Hospitality | 2018 |
| Goodmayes Motors (Sales) Limited | Wholesale & retail | 1999 |
| Goodmayes Properties Ltd | Real estate | 2000 |
| Goodness and Lordson Limited | Health & social care | 2025 |
| Goodridge Consultancy Limited | Financial services | 2002 |
| Goodstart IH Ltd | Administrative & support | 2017 |
| Goodvibez Ltd | Professional & scientific | 2025 |
| Goodygoodguys Ltd | Wholesale & retail | 2025 |
| Gordon & Wolfe Limited | Information & communication | 2020 |
| Gordon H Richards Limited | Administrative & support | 2000 |
| Gore Electrical Limited | Construction | 2024 |
| Gorsi Construction & Management Ltd | Construction | 2026 |
| Govegan Travel Ltd | Administrative & support | 2024 |