| Gloucestershire Sign Company Limited | Manufacturing | 2003 |
| Gloucestershire Student Accommodation Limited | Real estate | 2013 |
| Gloucestershire Trailers Ltd | Manufacturing | 2021 |
| Gloucestershire Wildlife Enterprises Limited | Agriculture & fishing | 2015 |
| Gloucestershire Wildlife Trust | Other services | 1961 |
| Gloucestershire Young Carers Project | Health & social care | 1997 |
| Gloucestershire's Machining Centre Ltd | Professional & scientific | 2019 |
| Gloucestersphere Accountants Limited | Professional & scientific | 2016 |
| Gloucesterwash Ltd | Administrative & support | 2025 |
| Glowell Healthcare Limited | Health & social care | 2024 |
| Glynch House Ltd | Construction | 2023 |
| Glynchbrook Ltd | Real estate | 2024 |
| GM Decorators Ltd | Construction | 2023 |
| GM Logistics Ltd | Wholesale & retail | 2025 |
| GM Partners Ltd | Professional & scientific | 2026 |
| GM Tyers Ltd | Wholesale & retail | 2026 |
| Gmcmservices Ltd | Wholesale & retail | 2017 |
| GME 1992 Limited | Construction | 1993 |
| Gmpk Limited | Extraterritorial | 2023 |
| Go Community Rail Partnership CIC | Transport & logistics | 2020 |
| Go Girl Painters Ltd | Construction | 2024 |
| Go Gloucestershire Communications Ltd | Administrative & support | 2017 |
| Go Green Parts Consultancy Ltd | Professional & scientific | 2022 |
| Go Performance Training Limited | Education | 2012 |
| Go Peri Peri Ltd | Hospitality | 2017 |
| Go Submit Limited | Information & communication | 2025 |
| Go Together Training Ltd | Professional & scientific | 2025 |
| Go TOO Incorporated Ltd | Real estate | 2025 |
| Goalevents Limited | Wholesale & retail | 2026 |
| Godspoolmusic Ltd | Information & communication | 2025 |
| Godswill Care Ltd Ltd | Public administration | 2019 |
| Godwill Care Ltd | Administrative & support | 2018 |
| Goglory Limited | Health & social care | 2025 |
| Gold Boys Ltd | Real estate | 2018 |
| Gold Carpentry Ltd | Construction | 2017 |
| Gold Standard Construction Limited | Construction | 2022 |
| Golden Hour Companions Limited | Health & social care | 2025 |
| Golden Supreme UK Limited | Wholesale & retail | 2020 |
| Golden Valley Property Services Limited | Construction | 2016 |
| Goldics Limited | Health & social care | 2022 |
| Goldingham Contracts Limited | Agriculture & fishing | 2011 |
| Goldington Management Company Limited | Households | 1983 |
| Goldline Recruitment Limited | Construction | 2024 |
| Goldos Limited | Wholesale & retail | 2024 |
| Goldrock Asset Investment Ltd | Real estate | 2024 |
| Goldsmith Mortgages Ltd | Financial services | 2023 |
| Golfsoft Ltd | Information & communication | 2026 |
| Gombani Ltd | Transport & logistics | 2024 |
| Gomer Services Limited | Manufacturing | 2024 |
| Gooch & Burley Limited | Professional & scientific | 1992 |
| Good Design Limited | Extraterritorial | 1980 |
| Good Dividends Ltd | Professional & scientific | 2018 |
| Good Field Ltd | Professional & scientific | 2024 |
| Good Friday Films Limited | Information & communication | 2021 |
| Good Heart Lettings Limited | Real estate | 2020 |
| Good Shepherd Ltd | Health & social care | 2015 |
| Good WOK K Limited | Hospitality | 2025 |
| Good WOK Mings Limited | Hospitality | 2023 |
| Goodhall Solutions Ltd | Information & communication | 2026 |
| Goodhind Engineering Consultants Limited | Professional & scientific | 1985 |
| Goodleigh Ltd | Real estate | 2026 |
| Goodlove Ltd | Transport & logistics | 2022 |
| Goodridge Court Limited | Real estate | 2010 |
| Goodridge Properties Limited | Real estate | 2013 |
| Goodyear Cleaning & Property Management Ltd | Administrative & support | 2024 |
| Gopo Limited | Manufacturing | 2016 |
| Gordon Road Flat Management Limited | Households | 1982 |
| Gordons With Love Ltd | Public administration | 2021 |
| Gorse Hill Management Company Limited | Households | 2003 |
| Goshen Healthcare Personnel Ltd | Health & social care | 2013 |
| Gosnells Beverages Ltd | Manufacturing | 2012 |
| Gotcha Claw Arcades Limited | Arts & recreation | 2025 |
| Gotd Rentals Ltd | Real estate | 2026 |
| Gotti Property Ltd | Real estate | 2025 |
| Gourmer Bristol Limited | Wholesale & retail | 2020 |
| Gourmer Emersons Green Ltd | Wholesale & retail | 2021 |
| Gourmer Gloucester Limited | Wholesale & retail | 2020 |
| Gourmer Holdings Limited | Financial services | 2018 |
| Gpmm Properties Ltd | Real estate | 2021 |
| GPP Hygiene LLP | | 2015 |
| GPP Trading Limited | Wholesale & retail | 2012 |
| GR Drinks Limited | Administrative & support | 2020 |
| Graay Limited | Professional & scientific | 2011 |
| Grab N Go Gloucester Ltd | Wholesale & retail | 2025 |
| Grace Olivia Ltd | Professional & scientific | 2005 |
| Gracie Barra Gloucester Ltd | Education | 2022 |
| Gradedvzn Ltd | Wholesale & retail | 2022 |
| Graham Dangerfield Light Haulage Limited | Transport & logistics | 2010 |
| Graham Gardens Management Company Limited | Households | 1964 |
| Graham Husk Plumbing and Heating Limited | Construction | 2021 |
| Grange Construction Services Ltd | Extraterritorial | 2015 |
| Grange Obstetric Medicolegal Limited | Health & social care | 2026 |
| Grant&Co Transportation UK Limited | Transport & logistics | 2025 |
| Graphix Print by Design Limited | Manufacturing | 2008 |
| Grass Outlet Ltd | Wholesale & retail | 2020 |
| Grass Seeds UK Limited | Wholesale & retail | 2011 |
| Gravflow Ltd | Wholesale & retail | 2026 |
| Graviq Engineering Services Ltd | Professional & scientific | 2024 |
| Gray HEN Limited | Real estate | 2023 |
| Gray Professional Services Limited | Professional & scientific | 2015 |