| Greenhill Fold (Upper Wortley) Management Limited | Households | 2016 |
| Greenhill Holidays Ltd | Hospitality | 2021 |
| Greenhill Roofing Ltd | Construction | 2005 |
| Greenhithe Healthcare Developments Ltd | Construction | 2022 |
| Greenhouse Installations UK Ltd | Construction | 2022 |
| Greenland Futures Limited | Construction | 2023 |
| Greenlay Agriculture Limited | Agriculture & fishing | 2011 |
| Greenleaf Animal Rescue Limited | Professional & scientific | 2010 |
| Greenleaf TDG Ltd | Professional & scientific | 2018 |
| Greenlight Paye Limited | Administrative & support | 2022 |
| Greenlight Payroll Operations Ltd | Administrative & support | 2023 |
| Greenlight Payroll Services Limited | Administrative & support | 2022 |
| Greenline Renovations Ltd | Construction | 2025 |
| Greenlit Group Ltd | Wholesale & retail | 2022 |
| Greenmount Property Group Ltd | Real estate | 2025 |
| Greenridges Food Ltd | Hospitality | 2026 |
| Greens (Decorating) Contractors Limited | Construction | 1988 |
| Greens Commercial Holdings Limited | Professional & scientific | 2015 |
| Greens Grocers Leeds Ltd | Wholesale & retail | 2023 |
| Greens Leeds Limited | Hospitality | 2024 |
| Greenshire Recycling Ltd | Water & waste | 2022 |
| Greenside Mills Management Company Limited | Households | 2005 |
| Greensky Catering (Leeds) Ltd | Hospitality | 2024 |
| Greensky Catering Limited | Hospitality | 2016 |
| Greensky Properties (Leeds) Ltd | Real estate | 2021 |
| Greenstar Health Care Ltd | Health & social care | 2014 |
| Greenstone Ventures Ltd | Real estate | 2018 |
| Greensward Ltd | Administrative & support | 2022 |
| Greentek Estates LLP | | 2024 |
| Greentek Solutions Ltd | Wholesale & retail | 2012 |
| Greenview Court (Leeds) Limited | Households | 1994 |
| Greenway Matcha Holdings Limited | Professional & scientific | 2024 |
| Greenway Rethink Ltd | Professional & scientific | 2022 |
| Greenways Properties (Whipsnade) Limited | Construction | 2013 |
| Greenways Property and Developments Ltd | Construction | 2018 |
| Greenwich Central College Ltd | Education | 2021 |
| Greenwood Analytics Ltd | Information & communication | 2025 |
| Greenwood Residential Homes Limited | Health & social care | 2014 |
| Greenwood Trading Limited | Water & waste | 2012 |
| Greenwood Tree Surgery and Garden Care Ltd | Administrative & support | 2025 |
| Greetings Security Limited | Administrative & support | 2021 |
| Greft Holdings Limited | Financial services | 2018 |
| Greg LEE Building Services Limited | Construction | 2024 |
| Greg O'Sullivan Limited | Financial services | 2006 |
| Greg Richards Ltd | Information & communication | 2016 |
| Gregg & Company (Knottingley) Limited | Manufacturing | 1926 |
| Gregorich Butchery Limited | Wholesale & retail | 2023 |
| Gremot Holdings Limited | Financial services | 2014 |
| Grenada Plus Ltd | Households | 2020 |
| Grenoside Ltd | Hospitality | 2026 |
| Gresk Global Investments Ltd | Transport & logistics | 2017 |
| Gresley House Ltd | Real estate | 2020 |
| Greuceanu Ltd | Transport & logistics | 2024 |
| Greuceanu Removals Ltd | Transport & logistics | 2025 |
| Grey Acumen Consult Limited | Real estate | 2026 |
| Grey Gables Limited | Real estate | 1964 |
| Grey Howick Ltd | Wholesale & retail | 2024 |
| GREY2GREEN Ltd | Construction | 2008 |
| Greyheart Media Ltd | Information & communication | 2013 |
| Greyhound Courier Logistics Ltd | Transport & logistics | 2026 |
| Greyhound IT Ltd | Information & communication | 2022 |
| Greys Artstone Limited | Manufacturing | 1998 |
| Greys Oak Ltd. | Administrative & support | 2019 |
| Greys Property Ltd. | Administrative & support | 2019 |
| Greysome Ltd | Financial services | 2014 |
| Greystone Drive Limited | Wholesale & retail | 2025 |
| Greystone Property Limited | Real estate | 2005 |
| Greystone Tech Solutions Ltd | Information & communication | 2026 |
| Greystonehomes Limited | Construction | 2016 |
| Greystones 40 Ltd | Construction | 2018 |
| Greystones 60 Ltd | Construction | 2023 |
| Greystones Court (Leeds) Management Company Limited | Households | 1996 |
| Greystones York Limited | Administrative & support | 2015 |
| GRG Developments Ltd. | Real estate | 2000 |
| GRH Consultancy Limited | Construction | 2017 |
| Gribben Davies Machine Tools (Export) Limited | Wholesale & retail | 2007 |
| Gribster GFF Ltd | Professional & scientific | 2024 |
| Grid 13 Limited | Wholesale & retail | 2013 |
| Grid Thirteen Properties Ltd | Real estate | 2021 |
| Gridfox Limited | Information & communication | 2020 |
| Gridian Ltd | Construction | 2022 |
| Gridjet Datacentres Ltd | Information & communication | 2023 |
| Gridstone Financial Limited | Information & communication | 2026 |
| Gridtec Limited | Energy | 2022 |
| Griffin Civil Engineering Ltd | Construction | 2026 |
| Griffin Consultants Limited | Professional & scientific | 2014 |
| Griffin Direct Mail Limited | Professional & scientific | 2003 |
| Griffin House Properties (Morley) Ltd | Financial services | 2017 |
| Griffin Neurosurgery Limited | Health & social care | 2018 |
| Griffinox Group Ltd | Financial services | 2026 |
| Griffiths Commercial Finance Ltd | Administrative & support | 2020 |
| Grifford Interiors Ltd | Construction | 2018 |
| Grigorescu Transport Limited | Construction | 2019 |
| Grigoryan Properties Limited | Real estate | 2022 |
| Grill Dingo Ltd | Wholesale & retail | 2021 |
| Grill Heist Ltd | Hospitality | 2022 |
| Grimer's Transport Limited | Information & communication | 1976 |
| Grimsby Stores Ltd | Wholesale & retail | 2022 |
| Grimsley Inc. Limited | Arts & recreation | 2025 |
| Grimston Park Shoot Limited | Arts & recreation | 2021 |