| Griffin Heritage Lime Ltd | Construction | 2026 |
| Griffin Roofing Supplies Ltd | Wholesale & retail | 2022 |
| Griffin Technical Solutions Ltd | Construction | 2009 |
| Griffiths Asset Consultants Ltd | Other services | 2024 |
| Griffiths Capital Ltd | Financial services | 2019 |
| Griffiths CJ Engineering Ltd | Other services | 2026 |
| Griffiths Plumbing and Heating Ltd | Construction | 2023 |
| Griffiths Transport Ltd | Transport & logistics | 2024 |
| Griffon Developments Limited | Real estate | 2009 |
| Griffon Homes (Air Balloon) Limited | Construction | 2014 |
| Griffon Homes (Bedminster) Limited | Real estate | 2017 |
| Griffon Homes (Beloe) Limited | Construction | 2015 |
| Griffon Homes (North RD) Limited | Real estate | 2015 |
| Griffon Homes Ltd | Construction | 2018 |
| Griffon Property Management Ltd | Real estate | 2024 |
| Grifsa Ltd | Information & communication | 2012 |
| Grill and Go SW Ltd | Hospitality | 2025 |
| Grill Cabin Ltd | Professional & scientific | 2018 |
| Grill Nest Ltd | Hospitality | 2024 |
| Grill of Kabul Ltd | Hospitality | 2026 |
| Grimsby RD Ltd | Construction | 2020 |
| Grind-Tech Limited | Manufacturing | 1995 |
| Grindal Wealth Management Ltd | Financial services | 2018 |
| Grinder One Ltd | Wholesale & retail | 2024 |
| Grindstone Films Limited | Information & communication | 1997 |
| Grip Services Limited | Information & communication | 2006 |
| Grip'D Performance Ltd | Wholesale & retail | 2023 |
| Gripbox Limited | Manufacturing | 2022 |
| Gripstep Limited | Information & communication | 2002 |
| Grit Box Investments Ltd | Real estate | 2025 |
| Grit Collective CIC | Manufacturing | 2022 |
| Gritty Faith Ltd | Education | 2021 |
| Gritty Talent Group Ltd | Administrative & support | 2019 |
| Grizedale Holdings Limited | Real estate | 2018 |
| Grizzly Bear Property Holdings Limited | Real estate | 2023 |
| Grizzly Cuts Limited | Information & communication | 2010 |
| Grizzly Design Ltd | Information & communication | 2016 |
| Grizzly Squirrel Productions Ltd | Administrative & support | 2024 |
| GRK Tech Ltd | Information & communication | 2021 |
| GRM Electrical Ltd | Construction | 2024 |
| GRM Scaffolding Ltd | Construction | 2024 |
| GRO Business Ltd | Information & communication | 2024 |
| Grocerly Foods Ltd | Wholesale & retail | 2025 |
| Grok Investments Limited | Real estate | 2022 |
| Grok Software Limited | Administrative & support | 2014 |
| Groomify Ltd | Other services | 2024 |
| Grosvenor (Southfield) Management Limited | Households | 1988 |
| Grosvenor and Wild AI Ltd | Information & communication | 2026 |
| Grosvenor Bridge Management Company Limited | Households | 1981 |
| Grosvenor Capital Partnerships Ltd | Real estate | 2016 |
| Grosvenor Consultancy Limited | Financial services | 1998 |
| Grosvenor Court Management Company (Bristol) Limited | Households | 1977 |
| Grosvenor Independent Financial Services Limited | Extraterritorial | 2002 |
| Grosvenor Mortgage & Insurance Consultancy Limited | Extraterritorial | 2002 |
| Grosvenor Orthodontic Clinic (Beckenham) Limited | Health & social care | 2012 |
| Grosvenor Place Holdings Limited | Construction | 1995 |
| Grosvenor PPP Holdings Limited | Professional & scientific | 2005 |
| Ground & Rooted Coffee Company Ltd | Hospitality | 2025 |
| Ground 8 Developments Limited | Construction | 2023 |
| Ground Engaging Technologies Limited | Wholesale & retail | 2011 |
| Ground Force Aviation Limited | Professional & scientific | 2022 |
| Ground Level UP Ltd | Construction | 2013 |
| Ground Risk Consultants Limited | Professional & scientific | 2019 |
| Ground Risk Solutions Limited | Professional & scientific | 2016 |
| Ground Shatter Ltd. | Information & communication | 2014 |
| Ground UP Construct Ltd | Construction | 2025 |
| Ground UP Properties Ltd | Real estate | 2020 |
| Ground UP Property Solutions Ltd | Construction | 2018 |
| Groundbreaker Construction Ltd | Construction | 2015 |
| Groundbreaker Contracting Ltd | Wholesale & retail | 1999 |
| Groundbreaker Solutions Ltd | Construction | 2025 |
| Grounded Flooring Ltd | Construction | 2024 |
| Grounds Maintenance (South West) Ltd | Administrative & support | 2024 |
| Groundtek Construction and Landscaping Limited | Construction | 2024 |
| Groundup Groundworks Ltd | Construction | 2026 |
| Group 8 Developments Limited | Construction | 2023 |
| Group Burger Limited | Hospitality | 2015 |
| Group Land Developments Limited | Construction | 2020 |
| Group of Q Limited | Financial services | 2023 |
| Group West Limited | Real estate | 2009 |
| GROUP22 Limited | Construction | 2001 |
| Groupco Ltd | Hospitality | 2018 |
| Groupworks Limited | Information & communication | 1994 |
| Grout Monkey Consort Ltd | Professional & scientific | 2024 |
| Grove Associates (SW) Limited | Financial services | 2017 |
| Grove Court (Bristol) Limited | Households | 1965 |
| Grove Court (West Town Park) Management Co Ltd | Households | 2018 |
| Grove Court Flat Management Company Limited | Households | 2010 |
| Grove Game Studios Ltd | Information & communication | 2025 |
| Grove Hall Management Company Limited | Households | 2023 |
| Grove House (Clifton) Management Company Limited | Households | 2006 |
| Grove House Tutors Limited | Education | 2026 |
| Grove Lodge Flat Management Company Ltd | Real estate | 2008 |
| Grove Lodge Veterinary Group Limited | Extraterritorial | 2010 |
| Grove Orchard Blagdon Limited | Households | 1996 |
| Grove Paddock Management Limited | Households | 2021 |
| Grove Park Road Management Company Limited | Households | 2022 |
| Grove Pre-School Nailsea Limited | Education | 2022 |
| Grove Talent Solutions Ltd | Administrative & support | 2025 |
| Grove Veterinary Centre Limited | Extraterritorial | 2011 |