| Green Field Crops Ltd | Wholesale & retail | 2024 |
| Green Machine Technology Ltd | Manufacturing | 2011 |
| Green MAN Garden Design Limited | Administrative & support | 2018 |
| Green MAN Gardens, Landscaping and Design Limited | Administrative & support | 2013 |
| Green MAN Lawn Care Franchising Ltd | Administrative & support | 2015 |
| Green Peaches C.I.C. | Professional & scientific | 2013 |
| Green Petal Properties Ltd | Real estate | 2026 |
| Green Phoenix Media Limited | Professional & scientific | 2025 |
| Green Property Maintenance Limited | Construction | 2003 |
| Green Pulse Energy Limited | Construction | 2014 |
| Green Real Estate Africa (Grea) Limited | Information & communication | 2022 |
| Green Renovations (Essex) Limited | Construction | 2010 |
| Green Ribbon Limited | Information & communication | 1995 |
| Green Scene Tree Surgery Limited | Administrative & support | 2014 |
| Green Square Creative Limited | Manufacturing | 2025 |
| Green Stallion Limited | Construction | 2001 |
| Green Wood Installations Ltd | Construction | 2023 |
| Greenacre Arboriculture Ltd | Agriculture & fishing | 2021 |
| Greenacre Cattery Limited | Administrative & support | 2010 |
| Greenaesthesia Ltd | Health & social care | 2022 |
| Greenbank Carpentry Ltd | Construction | 2015 |
| Greenblocks Ltd | Real estate | 2021 |
| Greenends Project Services Ltd | Professional & scientific | 2018 |
| Greener Advantage Renewables Limited | Construction | 2024 |
| Greenfin Consulting Ltd | Professional & scientific | 2026 |
| Greenflux Motors Ltd | Manufacturing | 2024 |
| Greengates Developments Limited | Real estate | 2003 |
| Greenharbor Estates Ltd | Real estate | 2024 |
| Greenhythe Court Management Company Ltd | Households | 2014 |
| Greenleaf Building & Landscaping Services Ltd | Construction | 2021 |
| Greenmill Group Limited | Financial services | 2019 |
| Greenmill Holdings Ltd | Financial services | 2016 |
| Greenmill Supply Company Limited | Wholesale & retail | 2010 |
| Greens Yard Ltd | Construction | 2020 |
| Greenstag Limited | Administrative & support | 2017 |
| Greenstead Court Management Company Limited | Households | 2007 |
| Greentec Products Ltd | Wholesale & retail | 2020 |
| Greenwaves Audio Limited | Manufacturing | 2026 |
| Greenwaves Ltd | Manufacturing | 2025 |
| Greenway Brokers Ltd | Wholesale & retail | 2026 |
| Greenwood Consulting Limited | Administrative & support | 2010 |
| Greenwood Property Consultants Ltd | Real estate | 2020 |
| Greenwood Property Sales Limited | Real estate | 2021 |
| Greet Solutions Limited | Wholesale & retail | 2022 |
| Greg Props Page Ltd | Information & communication | 2019 |
| Gregory & Card Limited | Real estate | 1974 |
| Grenade Stitching Ltd | Manufacturing | 2021 |
| Gresham PR Ltd | Information & communication | 2010 |
| Greve Developments Ltd | Real estate | 2021 |
| Grey Anchor Consulting Ltd | Professional & scientific | 2025 |
| Greycastle Holdings Ltd | Financial services | 2020 |
| Greydot Studio Limited | Professional & scientific | 2023 |
| Greyfriars (Abbots Road) Management Company Limited | Households | 1988 |
| Greylineautoinc Limited | Wholesale & retail | 2025 |
| Greys Mill Management Company Limited | Households | 1999 |
| Greystage Contracts Limited | Real estate | 1989 |
| Greystage Ltd | Construction | 2019 |
| Greyzip Ltd | Professional & scientific | 2018 |
| Griffen International Limited | Real estate | 1995 |
| Griffin Chapman Ltd | Extraterritorial | 2007 |
| Griffin Housing Solutions Limited | Real estate | 2018 |
| Griffiths Property Limited | Real estate | 1957 |
| Grill Zone Business Ltd | Hospitality | 2025 |
| Grill Zone Orignal Ltd | Hospitality | 2024 |
| Grimbot Games Ltd | Manufacturing | 2023 |
| Grimwood & Co Ltd | Construction | 2016 |
| Grinford Developments Ltd | Construction | 2018 |
| Grinford Hurst Ltd | Construction | 2018 |
| Gringo Records Limited | Wholesale & retail | 2022 |
| Grinny Heaths Limited | Administrative & support | 2016 |
| Grinsted Group Ltd | Professional & scientific | 2020 |
| Gripdeck Investments Limited | Professional & scientific | 2008 |
| Gripdeck Limited | Manufacturing | 2000 |
| Grizzlys Grilled Toasties Ltd | Hospitality | 2025 |
| Grmr Ltd. | Wholesale & retail | 2013 |
| GRO Living Lettings Ltd | Real estate | 2024 |
| Gross PAY Ltd | Professional & scientific | 2019 |
| Grounded Contracting Ltd | Construction | 2024 |
| Group 11 Limited | Construction | 2026 |
| Group First Ltd | Financial services | 2006 |
| Group Travel Organisers Association Limited | Other services | 2011 |
| Grove Care Partnership Limited | Health & social care | 2003 |
| Grove Chase Limited | Construction | 2013 |
| Grove Park Projects Limited | Construction | 2010 |
| Grove Pre-School (Stanway) | Education | 2010 |
| Growing Leaders Nursery Ltd | Education | 2025 |
| Growing Together Designing With Plants Limited | Agriculture & fishing | 2003 |
| Growth Spurt Essex Ltd | Administrative & support | 2025 |
| Grozavu International Transport Ltd | Transport & logistics | 2017 |
| GRU Bar Ltd | Hospitality | 2019 |
| Gruff Brewery Limited | Manufacturing | 2023 |
| Grunts Event Catering Ltd | Hospitality | 2026 |
| Grunts Food Truck Ltd | Hospitality | 2026 |
| Grunts Ltd | Hospitality | 2021 |
| GS Appliance Limited | Other services | 2019 |
| GSA Cyber Secure Limited | Other services | 2022 |
| GSA Global Limited | Other services | 2018 |
| GSD (Corporate) Holdings Ltd | Financial services | 2025 |
| GSD Accountancy Ltd | Professional & scientific | 2025 |
| GSD Brickwork Specialists Ltd | Construction | 2020 |