| G7 Brazilian JIU Jitsu Ltd | Tonypandy | 2019 |
| G8 Sports Consulting Limited | London | 2025 |
| G9 Entertainments Ltd | Farnborough | 2022 |
| G:Pwr Ltd | Attleborough | 2024 |
| GA & SF Limited | London | 2014 |
| GA Fitness Ltd | Derby | 2025 |
| GA Tattoos Ltd | Glasgow | 2026 |
| GA17 Ltd | Leicester | 2020 |
| GAA (Cawdor) Limited | Newcastle Emlyn | 2012 |
| Gaada Projects C.I.C. | Burra Isle | 2018 |
| Gabbi Edmunds Ltd | Bromley | 2019 |
| Gabbitt Media Ltd | Ipswich | 2020 |
| Gabble Media Limited | Bristol | 2026 |
| Gabe Fitness & Coaching Limited | New Buckenham | 2026 |
| Gable END Theatre Co. Ltd. | Stromness | 2000 |
| Gablecot Ltd | Kingston Upon Thames | 2017 |
| Gables Bridge Community Interest Company | Southport | 1962 |
| Gabriel Besleaga Limited | Leyland | 2026 |
| Gabriel Entertainment Limited | Melksham | 2020 |
| Gabriel Fine Arts Ltd | London | 2015 |
| Gabriel Fitness Ltd | St. Austell | 2025 |
| Gabriel JOB Limited | London | 2017 |
| Gabriel Krauze Limited | London | 2019 |
| Gabriel Partners UK Limited | London | 2022 |
| Gabriel Thomson Limited | London | 2002 |
| Gabriel Weil Limited | London | 2025 |
| Gabriela Rose Limited | London | 2011 |
| Gabriela Tattoo Limited | Epsom | 2026 |
| Gabriele Cappelli Limited | Benfleet | 2004 |
| Gabrieli | London | 2006 |
| Gabrieli Consort & Players Limited | London | 1996 |
| Gabriella Anouk Art Limited | London | 2021 |
| Gabriella Artistry Ltd | London | 2023 |
| Gabriella Nugent Ltd | London | 2024 |
| Gabrielle Bradshaw Limited | Ascot | 2015 |
| Gabrielle O'Hare Ltd | Manchester | 2022 |
| Gabrielle Reith Artworks Limited | Aberdeen | 2002 |
| Gabrielle Spanswick Ltd | Sheffield | 2019 |
| Gabrys Szeremeta Ltd | Hove | 2026 |
| Gabstar Entertainment Limited | Chatham | 2017 |
| Gaby Jerrard PR Ltd. | Droitwich | 2013 |
| Gaby Wilde Ltd | Coventry | 2021 |
| Gache Limited | Petworth | 2015 |
| Gacko Ltd | Barrow In Furness | 2019 |
| Gadabout Events Ltd | Carlisle | 2025 |
| Gadabout Films Limited | Glasgow | 2017 |
| Gadangme and EWE Music and Film Award UK Limited | London | 2022 |
| Gadd Group Health and Wellness Ltd | Belfast | 2023 |
| Gaddas Media Productions Ltd | Thornaby | 2024 |
| Gaddesden Place RDA Centre | Hemel Hempstead | 2011 |
| Gaddesden Sporting Club Limited | Hemel Hempstead | 2024 |
| Gadirova Twins Limited | Ipswich | 2022 |
| Gael Song Media Limited | Castlewellan | 2026 |
| Gaelfit Limited | Belfast | 2022 |
| Gaelite UK Ltd | Maldon | 2015 |
| Gaellefeghali Ltd | London | 2025 |
| GAF Media CIC | Edinburgh | 2025 |
| Gaff Glasgow Limited | Glasgow | 2025 |
| Gaffa PR Ltd | Lancing | 2023 |
| Gaffet Limited | Dagenham | 2018 |
| GAG Events Ltd | London | 2025 |
| Gagan CC Ltd | Bexleyheath | 2020 |
| Gaggatt.Art Ltd | Edinburgh | 2024 |
| Gagglebabble | Cardiff | 2016 |
| Gagodel Ltd | Stroud | 2011 |
| Gaia Art Foundation | London | 2014 |
| Gaia Fitness & Wellness Ltd | London | 2026 |
| Gaia Gardeners Limited | Chislehurst | 2020 |
| Gaia Ozwyn Ltd | London | 2021 |
| Gaia Tree Ltd | Liverpool | 2025 |
| Gaideo Ltd | London | 2014 |
| Gaiety (Clacton) Limited | Essex | 1994 |
| Gailey Canoe Club Ltd | Nr Penkridge | 2015 |
| Gailygain Limited | Shanklin | 1993 |
| Gain Ctrl Limited | London | 2017 |
| Gain Forth Gym Limited | Belfast | 2022 |
| Gainford Riverside Millennium Green Limited | Darlington | 2009 |
| Gainline Strength Ltd | Glasgow | 2023 |
| Gains AI Ltd | Stratford-Upon-Avon | 2025 |
| Gains Room Central Ltd | Rotherham | 2022 |
| Gains With Gabz Ltd | London | 2024 |
| Gainsborough Athletics Club Community Interest Company | Gainsborough | 2024 |
| Gainsborough Trinity CIC | Gainsborough | 2025 |
| Gainsborough Trinity Football Club Limited | Lincs | 1971 |
| Gainsborough’S House Society | Sudbury | 2016 |
| Gainsyfit Ltd | Wembley | 2021 |
| Gainz Fitness & Strength (Bedford) Ltd | St. Neots | 2019 |
| Gainz Fitness & Strength Ltd | St Neots | 2017 |
| Gainz Health & Fitness Limited | Barrow-In-Furness | 2019 |
| Gainz With the GOV Ltd | Swansea | 2024 |
| Gairloch & District Heritage Company Ltd. | Gairloch | 2012 |
| Gaithouse Events Limited | Newtownards | 2019 |
| GAK Operating Limited | Hildenborough | 2024 |
| Gaki Music Ltd | London | 2020 |
| Gala Case Limited | Belfast | 2015 |
| Gala Collective Limited | Axminster | 2025 |
| Gala DE Danza Limited | London | 2024 |
| Gala Entertainments Ltd | Watford | 2019 |
| Gala Events Ltd | Digby | 2019 |
| Gala Holdings Ltd | Dundee | 2026 |