| Goodmayes Kitchens Limited | Wholesale & retail | 1992 |
| Goods Transport Limited | Administrative & support | 2020 |
| Goodvale Limited | Transport & logistics | 2002 |
| Goodwise Technology Limited | Information & communication | 2024 |
| Goodycuts Ltd | Other services | 2008 |
| Goosey Goosey Ltd | Wholesale & retail | 2025 |
| Gorstar Limited | Real estate | 2000 |
| Gorz Limited | Real estate | 2016 |
| Gospodinele LUI Tata Ltd | Manufacturing | 2024 |
| Gospodinov Properties Limited | Real estate | 2020 |
| Govas Drylining Ltd | Construction | 2023 |
| Gowrley Pipe Services Limited | Other services | 2015 |
| GP Contracts Ltd | Professional & scientific | 2022 |
| GPG Group Limited | Financial services | 2016 |
| GPM Building Solutions Ltd | Construction | 2025 |
| GPR Essex Limited | Wholesale & retail | 2017 |
| Gracare Solutions Limited | Administrative & support | 2011 |
| Grace & Mercy Home Moves Limited | Transport & logistics | 2025 |
| Grace Evangelistic Ministries | Extraterritorial | 2010 |
| Grace Firm Consult Limited | Health & social care | 2020 |
| Grace Flow Cleaning Services Ltd | Administrative & support | 2026 |
| Grace Rose Property Services Limited | Real estate | 2025 |
| Grace's Housing Limited | Real estate | 2015 |
| Gracie Barra Thurrock Ltd | Education | 2023 |
| Gracilis Properties Limited | Real estate | 2024 |
| Gracious Properties Ltd | Real estate | 2025 |
| Graham Berg and Company Limited | Administrative & support | 2023 |
| Gramath Enterprise International Ltd | Wholesale & retail | 2024 |
| Grand Union (Freehold) Limited | Real estate | 2020 |
| Grandetrans Ltd | Transport & logistics | 2016 |
| Granges Motorbike Garage Ltd | Wholesale & retail | 2026 |
| Grant Fencing and Landscaping Ltd | Administrative & support | 2022 |
| Grant Priority Holdings Ltd | Real estate | 2016 |
| Grant Roofing Limited | Construction | 1994 |
| Grantis Group Limited | Professional & scientific | 2007 |
| Granville & Firth Developments Limited | Construction | 2022 |
| Granville Building Services Limited | Construction | 2021 |
| Granville Developments (Essex) Limited | Construction | 2021 |
| Granville Developments Suffolk Limited | Construction | 2021 |
| Granville Estates Essex Limited | Construction | 2022 |
| Granville Estates Limited | Construction | 1988 |
| Granville Estates Suffolk Limited | Construction | 2022 |
| Granville Property Management Limited | Real estate | 2008 |
| Granville Property Solutions Limited | Real estate | 2006 |
| Grap Ltd | Health & social care | 2024 |
| Gravel Road Produce Ltd | Wholesale & retail | 2025 |
| Gravitas Worldwide (Heathrow) Limited | Transport & logistics | 2023 |
| Gravitas Worldwide Holdings Ltd | Financial services | 2020 |
| Gravitas Worldwide Ltd | Transport & logistics | 2010 |
| Gravity Contractors Ltd | Construction | 2016 |
| Gravity Marketing (Leeds) Limited | Other services | 2017 |
| Grayson Signals Limited | Construction | 2023 |
| Graysteel Reinforcements Limited | Construction | 2008 |
| Graywood Engineering Ltd | Construction | 2011 |
| Grce Ltd | Information & communication | 2019 |
| Great Berry Limited | Extraterritorial | 2010 |
| Great Nosh Ltd | Hospitality | 2016 |
| Greeky Bites Ltd | Hospitality | 2025 |
| Green Air M & E Services Limited | Construction | 2014 |
| Green Buff Cleaning Services Ltd | Wholesale & retail | 2025 |
| Green Construct Limited | Construction | 2016 |
| Green Energy Plumbing and Heating Ltd | Construction | 2016 |
| Green Footprint Services Limited | Water & waste | 2016 |
| Green Hill View Limited | Construction | 2017 |
| Green House Energy Solutions Limited | Other services | 2020 |
| Green House Realty Ltd | Construction | 2024 |
| Green Interiors & Design Limited | Construction | 2009 |
| Green MAN Innovations Limited | Construction | 2013 |
| Green Power Renewables Ltd | Construction | 2024 |
| Green Prime Services Limited | Construction | 2024 |
| Green Pro Builders Ltd | Construction | 2019 |
| Green Shed Investments Limited | Real estate | 2021 |
| Green Soup Limited | Professional & scientific | 2005 |
| Green Wave Energy Limited | Professional & scientific | 2019 |
| Greenbay Supermarket Ltd | Administrative & support | 2015 |
| Greener Nature Ltd | Water & waste | 2018 |
| Greenlin Group Ltd | Construction | 2024 |
| Greenoak & Co Essex Limited | Construction | 2019 |
| Greenoak Concept & Design Ltd | Construction | 2011 |
| Greenplumb Limited | Professional & scientific | 2007 |
| Gregorb Ltd | Wholesale & retail | 2015 |
| Grey Beard Enterprises Limited | Transport & logistics | 2014 |
| Grey Pound Limited | Financial services | 2018 |
| Grey Tower Interiors Limited | Construction | 2020 |
| Grey Tower Limited | Construction | 2021 |
| Greyread Limited | Construction | 1977 |
| Greystone Design Ltd | Construction | 2020 |
| Gridline Partitions Ltd | Manufacturing | 2016 |
| Griffin & SON Developments Limited | Construction | 2025 |
| Griffin Construction Management Ltd | Professional & scientific | 2022 |
| Griffin Contractors Limited | Construction | 2022 |
| Griffin Residential Lettings Limited | Real estate | 2017 |
| Griffin Residential Limited | Real estate | 2014 |
| Griffin Trico Consulting Limited | Professional & scientific | 2023 |
| Griffincode Limited | Information & communication | 2020 |
| Griffiths & Hood Limited | Manufacturing | 1971 |
| Grifon Road Management Company Limited | Professional & scientific | 2005 |
| Grigorita Limited | Construction | 2014 |
| Grills and Grains Ltd | Hospitality | 2018 |
| Grimoire of Horror Ltd | Information & communication | 2023 |