| Guide to Grow Limited | Education | 2019 |
| Guide Wills and Estate Planning Limited | Professional & scientific | 2025 |
| Guideme - GM Limited | Professional & scientific | 2024 |
| Guild Growth Ltd | Professional & scientific | 2025 |
| Guildford AVE Ltd | Real estate | 2025 |
| Guillotine Technical Services Limited | Professional & scientific | 2009 |
| Guilt Free Groceries Limited | Wholesale & retail | 2021 |
| Guilty Club Ltd | Wholesale & retail | 2025 |
| Guinness Capital Limited | Extraterritorial | 2025 |
| Guise Parfum Ltd | Wholesale & retail | 2026 |
| Guiseley Balti Ltd | Manufacturing | 2018 |
| Guitar Genie Ltd | Wholesale & retail | 2023 |
| Guitara for General Supplies Ltd | Wholesale & retail | 2025 |
| Guitarix Ltd | Professional & scientific | 2021 |
| Guiyingwang Ltd | Wholesale & retail | 2026 |
| Gujar Performance Cars Ltd | Wholesale & retail | 2025 |
| Gujindhw Ltd | Wholesale & retail | 2025 |
| Gujjar Baba Ltd | Wholesale & retail | 2026 |
| Gujjar Brothers UK Limited | Hospitality | 2023 |
| Gujjar Gorton Limited | Hospitality | 2025 |
| Gujjar Logistics Ltd | Transport & logistics | 2026 |
| Gujjar Palace Ltd | Hospitality | 2024 |
| Gujjar Transport Limited | Transport & logistics | 2018 |
| Gujrat Construction Ltd | Construction | 2021 |
| Gujrat Ltd | Hospitality | 2020 |
| Gujrat Roofers Ltd | Construction | 2026 |
| Gujrat Sells Ltd | Wholesale & retail | 2025 |
| GUL Habib for Trading and Investment Ltd | Wholesale & retail | 2021 |
| GUL Halal Meat Limited | Wholesale & retail | 2025 |
| GUL Investments (MCR) Ltd | Real estate | 2020 |
| Gulam and Abdulgfar Ltd | Hospitality | 2025 |
| Gulam Attar Medical Services Limited | Health & social care | 2007 |
| Gulbees Ltd | Wholesale & retail | 2024 |
| Gulf Arab Crete UK Ltd | Wholesale & retail | 2025 |
| Gulf Made Ltd | Other services | 2021 |
| Gulf Pioneers Trading Ltd | Wholesale & retail | 2026 |
| Gulf Project Solutions Limited | Construction | 2022 |
| Gulf Target Transportation and Contracting Ltd | Manufacturing | 2025 |
| Gulf Tea House Limited | Hospitality | 2024 |
| Gull G Ltd | Wholesale & retail | 2022 |
| Gully Foyle Services Ltd | Professional & scientific | 2012 |
| Gulp Magazine Ltd | Information & communication | 2023 |
| Gulshaan Traders Ltd | Wholesale & retail | 2025 |
| Gulshan (Marple) Ltd | Hospitality | 2025 |
| Gulshan (Minehead) Ltd | Hospitality | 2025 |
| Gulshon Ltd | Wholesale & retail | 2024 |
| Gulufun Diamond Painting Ltd | Construction | 2025 |
| Gulzar and Sons Ltd | Professional & scientific | 2026 |
| Gulzar's Halal Family Butchers Limited | Hospitality | 2017 |
| Gumballmedia Ltd | Information & communication | 2025 |
| Gumbo MCR Ltd | Hospitality | 2025 |
| Gumina Limited | Hospitality | 2020 |
| Gummy Bear Films Limited | Extraterritorial | 2025 |
| Gummy Traders Limited | Wholesale & retail | 2025 |
| Gunnerbloom Limited | Professional & scientific | 2015 |
| Gunnercooke Consulting Limited | Professional & scientific | 2014 |
| Gunsmoke Productions Limited | Information & communication | 2009 |
| GUO Hong Trading Ltd | Wholesale & retail | 2026 |
| GUO Huibin Limited | Wholesale & retail | 2026 |
| GUO Manchester Ltd | Hospitality | 2026 |
| Guoguo Limited | Wholesale & retail | 2023 |
| Gupta Services Ltd | Health & social care | 2003 |
| Gupta UK Limited | Wholesale & retail | 2013 |
| GUR Manchester Trust | Other services | 2021 |
| Gurdi Ltd | Real estate | 2026 |
| Gurge Ltd | Wholesale & retail | 2026 |
| Gurkirpa Properties Ltd | Real estate | 2024 |
| Gurrehmat Construction UK Limited | Construction | 2024 |
| Gurrehmat Trading UK Limited | Wholesale & retail | 2025 |
| Gurtidex Ltd. | Information & communication | 2020 |
| Guru Fitness Limited | Arts & recreation | 2016 |
| Guru Kirpa Investments (NW) Ltd | Real estate | 2024 |
| Guru Kirpa MCR Limited | Wholesale & retail | 2024 |
| Guru Nanak Homes (GB) Ltd | Real estate | 2023 |
| Guru Nanak Homes GB 2 Limited | Real estate | 2023 |
| Guru Nanak Homes GB 3 Limited | Construction | 2023 |
| Guru Nanak Mobile Ltd | Wholesale & retail | 2020 |
| Guru Nanak Tech Ltd | Wholesale & retail | 2024 |
| GURUJI777 Limited | Real estate | 2024 |
| GUS Periscopes Services Ltd | Wholesale & retail | 2025 |
| Gusan Ltd | Professional & scientific | 2023 |
| Guscini Limited | Real estate | 2023 |
| Gustav Bonnier Holdings Limited | Construction | 2016 |
| Gustav Bonnier Limited | Construction | 2013 |
| Gusto Restaurants Limited | Hospitality | 1987 |
| GUT App Ltd | Information & communication | 2025 |
| GUT Ltd | Extraterritorial | 2022 |
| GUT Mazal Limited | Real estate | 2021 |
| Gutbrainmetamorphosis Ltd | Health & social care | 2025 |
| Gutenberg Gates Limited | Real estate | 2018 |
| Guththila Strategic Solutions Ltd | Professional & scientific | 2026 |
| Guto Harri Ltd | Wholesale & retail | 2025 |
| Guts for Graphics and Multimedia Ltd | Wholesale & retail | 2025 |
| Gutsy Printing Ltd | Manufacturing | 2025 |
| Gutter & Fascia Group Ltd | Construction | 2026 |
| GUY and Sons Properties Limited | Real estate | 2020 |
| GUY Investment Estates Ltd | Construction | 2019 |
| GUY Michael Rock Ltd | Professional & scientific | 2014 |
| Guys & Dolls Hairdressing (Chorlton) Ltd | Other services | 2011 |
| Guzwsg Ltd | Wholesale & retail | 2026 |