| Gradeprop Limited | Professional & scientific | 1981 |
| Grafters Group (EOT) Limited | Financial services | 2025 |
| Grafters Group Limited | Administrative & support | 1996 |
| Grafters Property Limited | Real estate | 2021 |
| Graham and Green Limited | Wholesale & retail | 1976 |
| Graham Barber Accountancy Limited | Professional & scientific | 2003 |
| Graham Mcewan Associates Limited | Professional & scientific | 1997 |
| Grahams Cleaning Services Ltd | Administrative & support | 2003 |
| Grahams Window Cleaning Services Ltd | Administrative & support | 2019 |
| Gramada G Build Limited | Construction | 2024 |
| Gramada Limited | Construction | 2024 |
| Grand Activation Ltd | Manufacturing | 2021 |
| Grandoman Holdings Limited | Real estate | 2016 |
| Grandoman Limited | Real estate | 1994 |
| Grange Hall (Flat Management) Bath Limited | Households | 1979 |
| Grant Partnership Limited | Professional & scientific | 1998 |
| Grant Pearcy Estates Limited | Administrative & support | 2001 |
| Grant, French and Chmiel Partnership Ltd | Financial services | 2020 |
| Granvilles Consultancy Ltd | Other services | 2018 |
| Grape Escape @ Road Green Vineyard Limited | Hospitality | 2023 |
| Grasmere Services Ltd | Transport & logistics | 2015 |
| Grass Roots Coffee Company Ltd | Hospitality | 2021 |
| Grass Valet Company Limited | Administrative & support | 1998 |
| Grasshopper ANT Limited | Administrative & support | 2019 |
| Grassroots Golf Ltd | Education | 2025 |
| Gratton Financial Planning Ltd | Financial services | 2025 |
| Gratton Limited | Construction | 2002 |
| Gravitate Sport Ltd | Wholesale & retail | 2021 |
| Gray Oracle Limited | Information & communication | 2026 |
| Gray Property Investment Holdings Limited | Real estate | 2023 |
| Gray Property Investment SUB 1 Limited | Real estate | 2023 |
| Gray Property Investment SUB 2 Limited | Real estate | 2023 |
| Gray Property Investment SUB 3 Limited | Real estate | 2023 |
| Grcs Management Ltd | Information & communication | 2016 |
| Great Advertising Limited | Professional & scientific | 2020 |
| Great British Glamping Ltd | Hospitality | 2023 |
| Great Living Limited | Real estate | 2005 |
| Great Pulteney Management Company Limited | Households | 1982 |
| Greater Than Tech Ltd | Information & communication | 2020 |
| Greedy PIG Theatre Company Ltd | Arts & recreation | 2020 |
| Green Acorn Property Bath Ltd | Real estate | 2014 |
| Green Analytical Services Limited | Information & communication | 2015 |
| Green Financial Limited | Financial services | 2005 |
| Green Health Massage Centre Co., Ltd | Other services | 2018 |
| Green Kale Limited | Real estate | 2017 |
| Green Ledger Consulting Limited | Professional & scientific | 2014 |
| Green Mantis Limited | Other services | 2025 |
| Green Park Bike Station Limited | Wholesale & retail | 2010 |
| Green PEA Trading Ltd | Wholesale & retail | 2019 |
| Green Room Gardens (Bath) Ltd | Administrative & support | 2020 |
| Green Running Limited | Information & communication | 2010 |
| Green Safety Services Ltd | Professional & scientific | 2025 |
| Green Shoots (Bath) Limited | Education | 2013 |
| Green Talent Ltd | Professional & scientific | 2023 |
| Green Tomato Developments Limited | Construction | 2011 |
| Green Tomato Property Limited | Real estate | 2013 |
| Greenacres Electrical Ltd | Construction | 2015 |
| Greenbrook Leyton Limited | Financial services | 2021 |
| Greencrown Group Ltd | Information & communication | 2024 |
| Greendown Joinery Ltd | Manufacturing | 2024 |
| Greendown Oak Suppliers Limited | Wholesale & retail | 2018 |
| Greendown Shepherd Huts Limited | Manufacturing | 2017 |
| Greenfield Partners Ltd | Real estate | 2018 |
| Greenhalgh & Co Engineers Ltd | Professional & scientific | 2018 |
| Greenhalgh Landscape Architecture Limited | Professional & scientific | 2014 |
| Greenhaus Building Ltd | Construction | 2009 |
| Greenhill Crescent Developments | | 1988 |
| Greenlight Capital Allowances Limited | Professional & scientific | 2024 |
| Greenman Environmental Management Limited | Agriculture & fishing | 2003 |
| Greenman Environmental Management Trustees Limited | Professional & scientific | 2024 |
| Greenplace Assets Ltd | Real estate | 2017 |
| Greensmart Property Management Ltd | Real estate | 2025 |
| Greensmart Property Services Limited | Administrative & support | 2020 |
| Greenway Crescent Management Company Limited | Households | 2017 |
| Greenwell Solar Ltd | Energy | 2023 |
| Greenwood Surfacing Limited | Construction | 2013 |
| Gregory Property Ltd | Hospitality | 2026 |
| Gresham Resources Limited | Extraterritorial | 2021 |
| Greyhound Media Group Limited | Arts & recreation | 2016 |
| Greyvic Ltd | Construction | 2012 |
| Grid ZER0 Ltd | Construction | 2021 |
| Gridley Decorating Services Limited | Construction | 2025 |
| Griffins Development Limited | Construction | 2019 |
| Grittleton Estates Limited | Professional & scientific | 2012 |
| Gromix Limited | Public administration | 2014 |
| Groovejet Leisure Ltd | Arts & recreation | 2017 |
| Grosvenor Place (Bath) Limited | Households | 1981 |
| Grosvenor Progress Ltd | Professional & scientific | 2023 |
| Grosvenor Villa Bath Ltd | Hospitality | 2025 |
| Ground Mount Solar Limited | Professional & scientific | 2023 |
| Groundx Consulting Limited | Information & communication | 2014 |
| Group Safely (IRL) Ltd | Education | 2020 |
| Group Travel Connection (Transport) Limited | Administrative & support | 2000 |
| Group Travel Connection Limited | Professional & scientific | 2000 |
| Groupia Ltd | Administrative & support | 2002 |
| Grovehurst Limited | Real estate | 1956 |
| Grow Batheaston | Other services | 2022 |
| Grow My Salon Business Limited | Extraterritorial | 2014 |
| Grow Timsbury CIC | Hospitality | 2017 |
| Grow Your Own Happiness Limited | Professional & scientific | 2014 |