| G&G Consulting Limited | Professional & scientific | 2018 |
| G&G Inns Bell Limited | Hospitality | 2024 |
| G&G Inns Ltd | Hospitality | 2024 |
| G&K Property Solutions Ltd | Households | 2021 |
| G&P Controls Limited | Construction | 2015 |
| G&S Glazzard Limited | Wholesale & retail | 2019 |
| G&W FP 2025 Ltd | Financial services | 2025 |
| G-Mado Transport Ltd | Transport & logistics | 2026 |
| G-Smatt Europe Media Limited | Manufacturing | 2017 |
| G-Zero Manufacturing Solutions Limited | Professional & scientific | 2025 |
| G.E.C Cleaning Solutions Ltd | Administrative & support | 2023 |
| G.E.D. Designs Limited | Manufacturing | 2000 |
| G.L.N.Contract Services Ltd | Construction | 2023 |
| G.M. Graham Pharmacies Limited | Wholesale & retail | 2000 |
| G13PLUS Limited | Other services | 2019 |
| G2DA2023 Ltd | Information & communication | 2023 |
| G6 Anagkazo Ltd | Construction | 2025 |
| GA Structural Consultancy Ltd. | Professional & scientific | 2011 |
| Gaba Ventures Ltd | Wholesale & retail | 2025 |
| Gabev Ltd | Transport & logistics | 2020 |
| Gabriella Sills Productions Ltd | Administrative & support | 2022 |
| Gabwell Business Centre Management Company Limited | Real estate | 2018 |
| Gadens Holdings Limited | Financial services | 2019 |
| Gadens Logistics Limited | Transport & logistics | 2006 |
| Gadens Properties Ltd | Real estate | 2012 |
| Gaelm Solutions Limited | Health & social care | 2024 |
| Gainsborough Homes (Cradley) Limited | Professional & scientific | 2005 |
| Gainsborough Time-Share Limited | Professional & scientific | 1982 |
| Gainz Muscle Gear Ltd | Construction | 2024 |
| Galileo Consultancy Ltd | Professional & scientific | 2025 |
| Gallery Skateboards Ltd | Wholesale & retail | 2021 |
| Gallerybr Limited | Wholesale & retail | 2020 |
| Gallimore Kitchen Ltd | Hospitality | 2026 |
| Gamechanger Education Ltd | Education | 2026 |
| Gamma Technologies Ltd | Administrative & support | 2025 |
| GAP Sales & Marketing Services Limited | Professional & scientific | 2014 |
| Garbanzo Ltd | Real estate | 2022 |
| Garbett and Rose Property Ltd | Real estate | 2024 |
| Gardens by Keltie & Clark Ltd | Professional & scientific | 2003 |
| Gardiner Properties Limited | Real estate | 2018 |
| Gardner Homes Ltd | Real estate | 2025 |
| Gareth J Grey Financial Consulting Ltd | Professional & scientific | 2022 |
| Garfield Property Management Ltd | Real estate | 2010 |
| Gargantuan Games Limited | Information & communication | 2014 |
| Garlick Agri Ltd | Wholesale & retail | 2003 |
| Garmur Future Abrasives Ltd | Wholesale & retail | 2008 |
| Garth Fawr Farm Bess Limited | Energy | 2023 |
| Garth Hall Farm Bess Limited | Energy | 2023 |
| Gary Barber Pharmacies Limited | Wholesale & retail | 2002 |
| Gary Dawes Brickwork CYF | Construction | 2015 |
| GAS Approval Solutions Ltd | Professional & scientific | 2026 |
| Gasline Services Limited | Construction | 2012 |
| Gastec at CRE Limited | Extraterritorial | 2011 |
| Gatecon Limited | Arts & recreation | 2015 |
| Gatehouse (Pittville Cheltenham) Residents Association Limited | Administrative & support | 1981 |
| Gater Construction Limited | Construction | 2024 |
| Gath Construction Ltd | Construction | 2022 |
| Gather and Graze Ltd | Hospitality | 2025 |
| Gather at Ltd | Agriculture & fishing | 2012 |
| Gaudy Green Management Company Limited | Households | 1991 |
| Gazela Services Ltd | Information & communication | 2021 |
| Gazelle Developments Limited | Other services | 1996 |
| GB Interiors Group Limited | Construction | 2023 |
| GC Mediation and Training Ltd | Professional & scientific | 2026 |
| GCF Holdings Limited | Professional & scientific | 2016 |
| GCJ Leisure Ltd | Other services | 2022 |
| GCS Gloucester Cleaning Solutions Ltd | Administrative & support | 2022 |
| GCS Retail Ltd | Hospitality | 2022 |
| GDH Consulting Solutions Limited | Professional & scientific | 2025 |
| GE Aviation Systems Group Limited | Professional & scientific | 2004 |
| GE Aviation Systems Limited | Manufacturing | 1963 |
| GE Aviation UK | Manufacturing | 2007 |
| GE Infrastructure Aviation | Manufacturing | 2007 |
| GE Legal Limited | Other services | 2025 |
| GE Technical Services Ltd | Information & communication | 2021 |
| Geckai Ltd | Information & communication | 2025 |
| Gecko Roofing Ltd | Construction | 2026 |
| Gedik and Partners UK Ltd | Manufacturing | 2023 |
| Gee's Beauty Academy Ltd | Education | 2023 |
| Geeraffe Limited | Professional & scientific | 2025 |
| Gee’S Beauty Ltd | Other services | 2025 |
| Gelmont Holdings Limited | Financial services | 2023 |
| GEM Trade ZA Limited | Wholesale & retail | 2023 |
| Gemini Financial Planning Limited | Financial services | 2011 |
| Geminos Software (UK) Limited | Information & communication | 2025 |
| Gemma Gaskins Photography Ltd | Professional & scientific | 2023 |
| Genegps Ltd | Health & social care | 2024 |
| General Services (Fabrications) Limited | Construction | 1989 |
| Generate Products (UK) Limited | Wholesale & retail | 2015 |
| Generation Next Ltd | Information & communication | 2021 |
| Genesio Ltd | Information & communication | 2021 |
| Genesis Intelligence Limited | Information & communication | 2025 |
| Genevieve Edwards Limited | Health & social care | 2018 |
| Geni Properties Ltd | Real estate | 2021 |
| Genie Toys International Ltd | Administrative & support | 2017 |
| Genie Toys Limited | Manufacturing | 1996 |
| Genki Group Ltd | Hospitality | 2025 |
| Gente DI Mare Limited | Hospitality | 2021 |
| Gentle Earth Organics Limited | Extraterritorial | 2011 |
| Gentleman's Move Ltd | Transport & logistics | 2025 |