| Gillhouse Limited | Diss | 2011 |
| Gillian Hoban Make UP Ltd | Inverness | 2025 |
| Gillian Thompson Ltd | Belfast | 2019 |
| Gillingham FC Foundation Limited | Gillingham | 2024 |
| Gillingham Gymnasium Association Ltd | Rochester | 2015 |
| Gillingham Town Youth Football Club Limited | Gillingham | 2024 |
| Gillis Sports Management Limited | Didcot | 2024 |
| Gillott Learning Ltd | London | 2025 |
| Gillotts School | Henley-On-Thames | 2012 |
| Gillram Limited | Birmingham | 2007 |
| Gimbol Ltd | Market Warsop | 2018 |
| Gina Battye Ltd | Huddersfield | 2023 |
| Gina Conway Academy Limited | London | 2018 |
| Gina's Montessori Limited | Enfield | 2021 |
| Ginger & Spice Heritage Trust | Stone | 2022 |
| Ginger Nurseries Ltd | London | 2019 |
| Ginger NUT Media Limited | Colchester | 2010 |
| Gingerbread House Day Nursery (Croydon) Limited | Manchester | 2018 |
| Gingerbread House Ltd | Halifax | 2009 |
| Gingerbread Training Ltd | Sunderland | 2019 |
| Gingko | London | 2013 |
| Ginkgo Music | London | 2007 |
| Ginnel Pigs CIC | Lancaster | 2025 |
| Ginny Radmall Coaching Ltd | Godalming | 2017 |
| Ginny Whitton Educational Psychology Ltd | Stroud | 2024 |
| Gio's English Ltd | Cambridge | 2018 |
| Gioel Limited | London | 2022 |
| Giom One Limited | London | 2026 |
| Gipmc Education PVT Ltd | Ruislip, | 2026 |
| Gipping Valley Academy Trust | Stowmarket | 2014 |
| Giraffe Centre Limited | Canvey Island | 2021 |
| Giraffe Corner Limited | Oxfordshire | 2006 |
| Giraffe Social Enterprises CIC | Cardigan | 2012 |
| Gird Training Limited | Grays | 2022 |
| Gireach Ltd | London | 2025 |
| Girfaf Ltd | Ormiston | 2021 |
| Girl Boss Online Training Limited | Altrincham | 2023 |
| Girl Effect | London | 2011 |
| Girl Grind UK CIC | Birmingham | 2020 |
| Girl in the Purple Ltd | Birmingham | 2020 |
| Girl Power United CIC | Doncaster | 2025 |
| Girldreamer Ltd | Birmingham | 2016 |
| Girlhood Reclaimed CIC | Bristol | 2024 |
| Girls Club of Glasgow CIC | Glasgow | 2014 |
| Girls Drive Limited | Liverpool | 2020 |
| Girls Empowering Aerospace Revolution CIC | London | 2025 |
| Girls Empowerment Meeting Limited | London | 2025 |
| Girls Football Coaching Ltd | Tring | 2020 |
| Girls HIT Harder Ltd | Sutton Coldfield | 2025 |
| Girls in Afrobeats CIC | London | 2023 |
| Girls in Data | Basingstoke | 2021 |
| Girls in Research Ltd | Cardiff | 2024 |
| Girls in Science Ltd | Milton Keynes | 2019 |
| Girls Into Coding Community Interest Company | London | 2020 |
| Girls Love Football Limited | London | 2019 |
| Girls on Board Limited | Basildon | 2017 |
| Girls Rock Glasgow CIC | Glasgow | 2024 |
| Girls Rugby Club Ltd | Nottingham | 2020 |
| Girls Talk CIC | Mitcham | 2024 |
| Girls Talk Corporation Ltd | Ilford | 2014 |
| Girls That Moto Limited | Derby | 2023 |
| Girls United Football Association | London | 2017 |
| Girls WHO Bank CIC | Chelmsford | 2024 |
| Girls WHO Play CIC | Blyth | 2020 |
| Girls With Dreams Club CIC | Formby | 2021 |
| Girls' Education Company,Limited | Bucks | 1896 |
| Girls' Learning Trust | Sutton | 2011 |
| Girls+ Rock Sheffield CIC | Sheffield | 2026 |
| GIRLZ2GOALZ Ltd | Chester | 2024 |
| Girne American University of North Cyprus Limited | South Croydon | 2022 |
| GIS Tutorials Ltd | Manchester | 2025 |
| Giseforum Ltd | Manchester | 2025 |
| Gisma Business School London Limited | London | 2016 |
| Gisoel Glasgow Limited | Glasgow | 2016 |
| Gittins Training Services Ltd | Solihull | 2022 |
| Giulliano Guerra Personal Trainer Ltd | London | 2019 |
| Give a Future | Crawley | 2008 |
| Give and Grow CIC | Welwyn Garden City | 2025 |
| Give Back 2U UK Community Interest Company | Milton Keynes | 2018 |
| Give Back Initiative C.I.C. | London | 2025 |
| Give GET Go Education CIC | Northampton | 2022 |
| Give IT a TRI Ltd | Sutton | 2023 |
| Give IT Forward Today | London | 2013 |
| GIVE4HOPE Limited | Sidcup | 2025 |
| Givfree | London | 2021 |
| Giving Impetus to Voluntary Effort | Sunbury-On-Thames | 2003 |
| Giving What WE CAN UK | London | 2024 |
| Givingworks | London | 1999 |
| Gizmo's LAB Ltd | Nottingham | 2010 |
| GJ Coaching Limited | Southampton | 2020 |
| GJ Community College CIC | London | 2023 |
| GJ GP Ltd | Rochford | 2021 |
| Gjheducation Ltd | West Wickham | 2018 |
| GJL Education Ltd | Aberystwyth | 2025 |
| GJL Learning and Development Ltd | Sutton Coldfield | 2015 |
| Gjlwsports Limited | London | 2022 |
| GJM School of Motoring Limited | Manchester | 2021 |
| Gjoshi Driving School Limited | Bromley | 2023 |
| Gjps Trust Fund | Gateshead | 2006 |
| GJT Aviation Training Services Ltd | Portland | 2023 |