| Gadsby Properties Ltd | Real estate | 2019 |
| Gainsborough Group (Bedminster) Limited | Real estate | 2023 |
| Gainsborough Group (Bristol) Limited | Construction | 2021 |
| Gainsborough Group Commercial Limited | Real estate | 2021 |
| Gainsborough Group Construction Limited | Construction | 2021 |
| Gainsborough Properties Limited | Real estate | 2017 |
| Gainsborough Station Developments Ltd | Construction | 2022 |
| GAP Medical Group Limited | Financial services | 2024 |
| GAP Medical Solutions Limited | Professional & scientific | 2023 |
| GAP South West Builders Ltd | Construction | 2025 |
| Gaps Trading Limited | Financial services | 2026 |
| Gardening Gang Ltd | Agriculture & fishing | 2026 |
| Garry Sweet Plant Ltd | Administrative & support | 2020 |
| Gatekeeper Homes and Interiors Limited | Extraterritorial | 2023 |
| GBY Property Ltd | Real estate | 2018 |
| GCE Contractors Ltd | Construction | 2023 |
| Gcgfcc Ltd | Arts & recreation | 2022 |
| GDG MED Limited | Health & social care | 2025 |
| GDH Building Ltd | Construction | 2023 |
| Geemec Limited | Construction | 2015 |
| Geenspark Green Energy Limited | Energy | 2025 |
| GEM Electrical Solutions (SW) Ltd | Construction | 2021 |
| GEM Lighting & Electrical Limited | Construction | 2015 |
| Gemini Vapes Limited | Wholesale & retail | 2024 |
| Gentleman Barber Bridgwater Ltd | Other services | 2025 |
| George Bronwin Limited | Manufacturing | 2022 |
| George Patrick Limited | Professional & scientific | 2019 |
| Gerald Burns Wealth Management Limited | Financial services | 2013 |
| Gerec Recovery Holdings Ltd | Financial services | 2025 |
| Gerec Recovery Ltd | Transport & logistics | 2024 |
| German Kraft Brewery Ltd | Manufacturing | 2026 |
| German Kraft Mayfair Ltd | Manufacturing | 2017 |
| Gessbur Trading Ltd | Hospitality | 2014 |
| GG Clevedon Limited | Construction | 2026 |
| Ghostio.Co.Uk Ltd | Wholesale & retail | 2020 |
| Ghtlink (UK) International Trading Limited | Wholesale & retail | 2018 |
| Gigaspeed Ltd | Information & communication | 2024 |
| Gillards Transport Limited | Transport & logistics | 1978 |
| Gillson Bros Limited | Manufacturing | 1945 |
| GIN Ravers Productions Ltd | Arts & recreation | 2025 |
| Ginger & Pink Ltd | Hospitality | 2025 |
| Gingesautorepairs Ltd | Wholesale & retail | 2025 |
| Girone-Maddocks Investments Limited | Professional & scientific | 2025 |
| Girotype Limited | Information & communication | 2025 |
| Glastonbury Chilkwell GUY Fawkes Carnival Committee Limited | Arts & recreation | 1991 |
| Gleam-Radiant Ltd | Construction | 2021 |
| Glen USK Business Club Limited | Extraterritorial | 2014 |
| Glendalough Ltd | Hospitality | 2026 |
| Glenny 97 Limited | Professional & scientific | 2023 |
| GLJ Fitness Limited | Wholesale & retail | 2016 |
| Global Certification (UK) Limited | Administrative & support | 2009 |
| Gmmd Limited | Administrative & support | 2023 |
| GNS Ventures Ltd | Financial services | 2025 |
| Go Play Group Ltd | Arts & recreation | 2026 |
| GO2 Supplies Ltd | Construction | 2026 |
| GOA Developments Ltd | Real estate | 2025 |
| Golden Ball Bridgwater Ltd | Hospitality | 2018 |
| Golden Fish & Chips Ltd | Hospitality | 2026 |
| Goldquay Properties Limited | Real estate | 2005 |
| Goldstar Uniforms Limited | Wholesale & retail | 2012 |
| Goldstream Governance Ltd | Financial services | 2014 |
| Golf & Leisure Group Limited | Financial services | 2020 |
| Goodall Property Ltd | Real estate | 2016 |
| Goodcard Limited | Real estate | 1999 |
| Goodknight Homes Ltd | Real estate | 2024 |
| Gorge Acoustics Limited | Professional & scientific | 2020 |
| Gorilla Vapes Bridgwater Ltd | Wholesale & retail | 2023 |
| Gorilla Vapes Burnham Ltd | Wholesale & retail | 2023 |
| Gorilla Vapes Distro Ltd | Wholesale & retail | 2023 |
| Gosouthwestmotorhomehire Ltd | Transport & logistics | 2023 |
| Gould Roofing Limited | Construction | 2024 |
| GP Food Street Ltd | Hospitality | 2022 |
| GR Properties Limited | Real estate | 2018 |
| Graham Bell Electrical Services Limited | Real estate | 2013 |
| Graham Cooper Construction Ltd | Construction | 2006 |
| Grandfields Westonzoyland MX and Learner Driver Area Ltd | Arts & recreation | 2022 |
| Graphic Orbs Ltd | Professional & scientific | 2025 |
| Graphic Vendor Ltd | Professional & scientific | 2025 |
| Gratton Family Properties Ltd | Real estate | 2025 |
| Gratton Family Property Flips Ltd | Real estate | 2025 |
| Gratton Family Property Rentals Ltd | Real estate | 2025 |
| Gratton Industries Ltd | Financial services | 2024 |
| Great British Funfair Limited | Arts & recreation | 2010 |
| Green AXE Ltd | Construction | 2012 |
| Green Carpentry Limited | Construction | 2021 |
| Green Mantle (Ecosophy) Limited | Agriculture & fishing | 2002 |
| Green Moves UK Limited | Other services | 2004 |
| Green ORE Estates Limited | Construction | 1996 |
| Green Planet Park Homes Ltd | Real estate | 2022 |
| Green Residential Ltd | Real estate | 2025 |
| Greinton Service Station Limited | Wholesale & retail | 2016 |
| Greylake Country Renovations Ltd | Construction | 2024 |
| Greymoore Properties Ltd | Real estate | 2023 |
| Grove FX Ltd | Financial services | 2025 |
| Growth Resourcing Limited | Administrative & support | 2023 |
| GS Lima Ltd | Wholesale & retail | 2026 |
| GSM IT Consulting Limited | Information & communication | 2025 |
| GSP Construction South West Ltd | Construction | 2026 |
| GT Bricklayers Limited | Construction | 2025 |
| GWB Services Ltd | Other services | 2015 |