| Greenland Auto Solutions Ltd | Wholesale & retail | 2022 |
| Greenleaves HS Ltd | Wholesale & retail | 2021 |
| Greenley Quarry Limited | Extraterritorial | 2002 |
| Greenline S5 Barbers Ltd | Other services | 2025 |
| Greenlite Haulage Limited | Transport & logistics | 2011 |
| Greenpathways Travel Ltd | Administrative & support | 2021 |
| Greenroom Consulting Greystones Ltd | Professional & scientific | 2023 |
| Greens Bathrooms Limited | Construction | 2022 |
| Greens Dairy Limited | Wholesale & retail | 2016 |
| Greens Interiors Limited | Construction | 2011 |
| Greens Kitchens Limited | Construction | 2024 |
| Greenscene Limited | Wholesale & retail | 2018 |
| Greenserv Contracting Ltd | Construction | 2025 |
| Greensheaf Eco Builds Ltd. | Construction | 2023 |
| Greenside Health Care Limited | Health & social care | 2001 |
| Greenside Property Investments Ltd | Real estate | 2026 |
| Greenside SPV Limited | Health & social care | 2018 |
| Greensit Plumbing Limited | Construction | 2006 |
| Greenstone Heat Pumps and Underfloor Limited | Construction | 2009 |
| Greenstone Property Services Limited | Administrative & support | 2018 |
| Greentea Solutions Limited | Information & communication | 2011 |
| Greentechfashion Limited | Professional & scientific | 2017 |
| Greentherm Developments Ltd | Construction | 2012 |
| Greentouch Cleaning Ltd | Administrative & support | 2026 |
| Greentree Legal Limited | Professional & scientific | 2017 |
| Greenwave Coaching & Consultancy Ltd | Professional & scientific | 2026 |
| Greenway Plant & Haulage Ltd | Transport & logistics | 2018 |
| Greenway Property Services Ltd | Construction | 2020 |
| Greenway Resources Ltd | Transport & logistics | 2018 |
| Greenwich Development Limited | Real estate | 2006 |
| Greenwood Forest Products (U.K.) Limited | Manufacturing | 1973 |
| Greg Cunningham & Company Ltd | Administrative & support | 2006 |
| Greg Saynor Haulage Limited | Transport & logistics | 2003 |
| Greg Thomas Surveying Services Limited | Construction | 2007 |
| Gregan Limited | Arts & recreation | 2018 |
| Gregory and Tesseras Blacksmiths Ltd | Manufacturing | 2019 |
| Greight Consult Limited | Professional & scientific | 2017 |
| Grena Scaffolding Limited | Construction | 2014 |
| Grenfell House Limited | Real estate | 1985 |
| Grenko Limited | Wholesale & retail | 2020 |
| Greno 2 Ltd | Construction | 2025 |
| Greno Garage & Engineering Ltd. | Wholesale & retail | 2023 |
| Greno Ltd | Construction | 2019 |
| Grenoside Equestrian Centre Limited | Arts & recreation | 2006 |
| Grenotech Consultancy Ltd | Professional & scientific | 2025 |
| Gresley (Stoke on Trent) Limited | Professional & scientific | 1925 |
| Gretaworks Ltd | Information & communication | 2019 |
| Grey Horse Penshaw Ltd | Hospitality | 2025 |
| Grey Pier Property Limited | Real estate | 2025 |
| Grey Street Ltd | Wholesale & retail | 2020 |
| Greyfriars 1969 Limited | Hospitality | 2023 |
| Greylist Trace Limited | Administrative & support | 2017 |
| Greymp Ltd | Professional & scientific | 2024 |
| Greyport Holding Limited | Financial services | 2016 |
| Greyspace Flooring Ltd | Wholesale & retail | 2015 |
| Greystone Asset Management Ltd. | Real estate | 2018 |
| Greystone Automotive Engineers Ltd | Wholesale & retail | 2017 |
| Greystone MOT Centre Ltd | Wholesale & retail | 2025 |
| Greystones Accounting Limited | Professional & scientific | 2018 |
| Greystones Construction Ltd | Construction | 2008 |
| Greystones Decorators Ltd | Construction | 2025 |
| Greystones Electrical Services Limited | Construction | 2016 |
| Greystones Grange Flats Company Limited | Households | 1970 |
| Greystones Inspection Services Ltd | Professional & scientific | 2013 |
| Greystones Joinery Limited | Construction | 2013 |
| Greystones Plumbing & Heating Ltd | Construction | 2017 |
| Greywolf Industries Limited | Manufacturing | 2017 |
| GRH Psychic Services Ltd | Information & communication | 2020 |
| GRH Recruitment Ltd | Administrative & support | 2016 |
| GRI Brands Limited | Financial services | 2017 |
| GRI Chemicals Limited | Professional & scientific | 2010 |
| GRI Expac Limited | Financial services | 2016 |
| GRI Group Limited | Professional & scientific | 2001 |
| GRI HRV Limited | Administrative & support | 2014 |
| GRI Libra Limited | Professional & scientific | 2015 |
| GRI Whirlow Limited | Professional & scientific | 2015 |
| Grid Batter Ltd | Transport & logistics | 2025 |
| Griff's Knees Limited | Information & communication | 2012 |
| Griffin Rental Properties Limited | Real estate | 2025 |
| Griffingold Limited | Professional & scientific | 1998 |
| Griffiths Gardening Limited | Administrative & support | 2023 |
| Grill House 25 Ltd | Hospitality | 2024 |
| Grill Nation Ltd | Hospitality | 2024 |
| Grilla Filla Ltd | Hospitality | 2025 |
| Grilled Pixels Ltd | Information & communication | 2021 |
| Grillers Fulwood Ltd | Hospitality | 2026 |
| Grillsheff Ltd | Hospitality | 2025 |
| Grimesthorpe Car and Commercial MOT Centre Ltd. | Wholesale & retail | 2017 |
| Grimesthorpe Store Ltd | Wholesale & retail | 2022 |
| Grimmer & Sons Ltd | Construction | 2012 |
| Grimpos Ltd | Hospitality | 2024 |
| Grimshaw&Brown Limited | Real estate | 2024 |
| Grind Cafe Kelham Ltd | Hospitality | 2025 |
| Grind Dont Stop Records Limited | Arts & recreation | 2020 |
| Grip Bar Limited | Professional & scientific | 1998 |
| Gripple Automation Limited | Manufacturing | 2016 |
| Gripple Foundation | Professional & scientific | 2021 |
| Gripple Limited | Manufacturing | 1983 |
| Gris Gris Limited | Arts & recreation | 2018 |
| Gritfuel Limited | Wholesale & retail | 2025 |