| Furnish Interior Design Ltd | Other services | 2013 |
| Fuse Worx Ltd | Professional & scientific | 2023 |
| FWC Construction Ltd | Construction | 2017 |
| G & G Martin Business Consultants (UK) Ltd | Professional & scientific | 2023 |
| G & G Martin Investment Co (UK) Ltd | Professional & scientific | 2023 |
| G S Stroud Limited | Administrative & support | 2013 |
| G&S Developments (Glos) Limited | Real estate | 2016 |
| G.B.C. (Speciality Chemicals) Limited | Wholesale & retail | 1994 |
| G.B.C. Performance Materials Limited | Wholesale & retail | 2013 |
| G.P.L. Mobile Autos Limited | Wholesale & retail | 2002 |
| Gagodel Ltd | Arts & recreation | 2011 |
| Gaineys Well Management Company Limited | Households | 2013 |
| Galanthus Ltd | Construction | 2019 |
| Galleria Rosa Limited | Wholesale & retail | 2025 |
| Galsworthy Wind Park Limited | Energy | 2007 |
| Galvin Homes Ltd | Real estate | 2021 |
| Gannicox CIC | Health & social care | 2014 |
| GAP Tooth Productions Limited | Information & communication | 2008 |
| Garden FOX Films Ltd | Information & communication | 2020 |
| Gardening Pride Limited | Administrative & support | 2019 |
| Gary West Joinery & Building Services Limited | Manufacturing | 2003 |
| Gastromania Ltd | Real estate | 1983 |
| Gate and Garden Ltd. | Hospitality | 2025 |
| Gateway to India Limited | Wholesale & retail | 2020 |
| Gather and Sift Limited | Information & communication | 2025 |
| Gather Therapeutic Flower Growing CIC | Administrative & support | 2025 |
| Gazzard Landscapes Ltd | Professional & scientific | 2024 |
| GB SPV1 Ltd | Financial services | 2015 |
| Gbit Consultancy Limited | Administrative & support | 2011 |
| GBL Aesthetics Ltd | Other services | 2024 |
| Gbpv Holdings Limited | Energy | 2021 |
| GE Dwellings Ltd | Real estate | 2025 |
| Gecko Live Limited | Information & communication | 2019 |
| Gemjar Limited | Wholesale & retail | 2009 |
| GEN Consultancy Limited | Extraterritorial | 2021 |
| Genesis Plastics Limited | Manufacturing | 1994 |
| Geocheck Ltd | Information & communication | 2020 |
| Geoff Brown Signalling Limited | Transport & logistics | 1998 |
| George LEE Precision Engineering Ltd | Manufacturing | 2021 |
| George Mcclarkin Limited | Administrative & support | 2007 |
| George Taylor Art Limited | Arts & recreation | 2015 |
| George-Anthony Barbers Ltd | Other services | 2015 |
| Gerrans Developments Ltd | Hospitality | 2021 |
| Gestalt Financial Ltd | Financial services | 2023 |
| Gfitness Limited | Other services | 2018 |
| GG PROPCO1 Ltd | Construction | 2026 |
| Ghxhosting.Com Ltd | Information & communication | 2008 |
| Gibbons Estates Limited | Construction | 1983 |
| Gibbs and Partners Limited | Professional & scientific | 2010 |
| Giffords Circus Limited | Extraterritorial | 2022 |
| Gilead Properties Ltd | Construction | 2020 |
| Gingko Solutions Limited | Real estate | 2016 |
| Ginny Whitton Educational Psychology Ltd | Education | 2024 |
| GL6 Property Ltd | Real estate | 2024 |
| Glanfields Pet Food Supplies Ltd | Manufacturing | 2025 |
| Glaving Solutions Limited | Wholesale & retail | 2016 |
| Glenart Trading Ltd | Wholesale & retail | 2016 |
| Glevum Property Management Limited | Real estate | 2000 |
| Global MED Direct UK Ltd | Professional & scientific | 2024 |
| Global Organic Markets Limited | Wholesale & retail | 2018 |
| Gloucester City Basketball Ltd | Education | 2025 |
| Gloucester Demolition Ltd | Construction | 2014 |
| Gloucestershire Arts and Crafts Centre Limited | Arts & recreation | 2010 |
| Gloucestershire Breastfeeding Supporters' Network | Health & social care | 2007 |
| Gloucestershire Counselling Service | Health & social care | 2003 |
| Gloucestershire House Clearances CIC | Water & waste | 2020 |
| Gloucestershire Nursery Group Ltd | Financial services | 2023 |
| Glow Innovation Limited | Professional & scientific | 2009 |
| Gluten Free Beer Direct Ltd | Wholesale & retail | 2025 |
| Go Stroud Ltd | Transport & logistics | 2026 |
| Goflo Screens Ltd | Manufacturing | 2007 |
| Golden Sunflower Films Limited | Information & communication | 2015 |
| Golden Valley Crossfit Ltd | Arts & recreation | 2021 |
| Golden Valley IT Limited | Administrative & support | 1997 |
| Golden Valley Landscape Gardening Ltd | Administrative & support | 2024 |
| Goldfinch Business and Media Limited | Professional & scientific | 2015 |
| Goldhill Quarry Limited | Construction | 2013 |
| Goldwater Springs Management Company Limited | Households | 2021 |
| Gomashio Ltd | Information & communication | 2011 |
| Good Shout Community Ltd | Professional & scientific | 2020 |
| Good Small Farms Ltd | Agriculture & fishing | 2021 |
| Gorrion Ltd | Professional & scientific | 2019 |
| Gorsedd Ltd. | Real estate | 1975 |
| Goss Hawk Services Ltd | Construction | 2014 |
| Grace Rose Watts Limited | Professional & scientific | 2016 |
| Grace Services Limited | Manufacturing | 2002 |
| Graduate Anywhere Limited | Education | 2025 |
| Graduate Gardeners Limited | Administrative & support | 1974 |
| Graduate Ventures Limited | Professional & scientific | 2003 |
| Graftr Limited | Administrative & support | 2010 |
| Grajo Property Limited | Real estate | 2018 |
| Grayfox Games Ltd | Wholesale & retail | 2024 |
| Grayheath Limited | Households | 1993 |
| Great Park Consultants Ltd | Professional & scientific | 2011 |
| Great White Art Ltd | Arts & recreation | 2016 |
| Greaterscapes Ltd | Administrative & support | 2023 |
| Green Britain Campaign Limited | Professional & scientific | 2024 |
| Green Britain Foundation | Health & social care | 2012 |
| Green Britain Group Holding Company Limited | Financial services | 2021 |
| Green Britain Group Limited | Professional & scientific | 2020 |