| Gsmp Properties Ltd | Real estate | 2025 |
| GSR Aerial Platforms (UK) Ltd | Manufacturing | 2016 |
| GSS Electronic Security Limited | Administrative & support | 2003 |
| GSS Locums Ltd | Health & social care | 2023 |
| GST Heating Ltd | Construction | 2016 |
| Gstate Ltd | Information & communication | 2023 |
| GSV Eatery Ltd | Hospitality | 2024 |
| GSV Properties Limited | Real estate | 2021 |
| GT 05 Ltd | Health & social care | 2023 |
| GT and at Properties Limited | Real estate | 2024 |
| GT Architects Ltd | Professional & scientific | 2013 |
| GT Cars Nottingham Limited | Transport & logistics | 2026 |
| GT Cushions Limited | Manufacturing | 2002 |
| GT Nails Spa Ltd | Other services | 2026 |
| GT Property Services (Midlands) Ltd | Construction | 2025 |
| GT Prospect Ltd | Wholesale & retail | 2016 |
| Gt&Mg Build Limited | Construction | 2019 |
| GTA (UK) Ltd | Wholesale & retail | 2001 |
| GTA Electrics Limited | Other services | 2009 |
| GTB Fresh Gardens Ltd | Administrative & support | 2026 |
| Gtech-Interface Ltd | Professional & scientific | 2025 |
| Gtgp Limited | Professional & scientific | 2024 |
| GTI Nottingham Ltd | Financial services | 2016 |
| GTL Assets (Nottm) Ltd | Financial services | 2020 |
| Gtlh Property Ltd | Real estate | 2025 |
| GTR Music Ltd | Arts & recreation | 2024 |
| GTS Building Services Limited | Construction | 2018 |
| GTS Derby Holdings Limited | Financial services | 2020 |
| GTS Technical Services Ltd | Other services | 2005 |
| Gtsd Services Ltd | Professional & scientific | 2025 |
| GTT - Emea Ltd. | Information & communication | 1998 |
| GTT Communications UK Holdings Ltd | Information & communication | 2025 |
| GTT Holdings Limited | Financial services | 2018 |
| Guadagni HSS Limited | Other services | 2025 |
| Guaide Ltd | Water & waste | 2023 |
| Guaide Wholesale Ltd | Wholesale & retail | 2025 |
| Guanxi (UK) Ltd | Professional & scientific | 2012 |
| Guardian Homecare Servco Limited | Professional & scientific | 2019 |
| Guardian Homecare UK Ltd. | Health & social care | 2000 |
| Guardian Law Ltd | Professional & scientific | 2007 |
| Guardian Parks and Developments Limited | Construction | 2007 |
| Guardian People Management Limited | Administrative & support | 2019 |
| Guardsman Car Sales Ltd | Wholesale & retail | 2024 |
| GUB Holdings Ltd | Financial services | 2021 |
| GUD Food Ltd | Hospitality | 2018 |
| Gudtogiv Limited | Financial services | 2024 |
| Guerss Consulting Ltd | Information & communication | 2016 |
| Guest Focus Ltd | Administrative & support | 2020 |
| Guestech Ltd | Professional & scientific | 2025 |
| Guestflow Software Ltd | Information & communication | 2023 |
| Guesting Limited | Real estate | 2022 |
| Gugu Baby Limited | Wholesale & retail | 2024 |
| Guidance and Growth C.I.C. | Health & social care | 2023 |
| Guideline Creative Ltd | Information & communication | 2019 |
| Guider Global Limited | Information & communication | 2018 |
| Guild Ultimate Militaria Limited | Wholesale & retail | 2012 |
| Guisborough Pharma Ltd | Wholesale & retail | 2023 |
| Gulatech Ltd | Professional & scientific | 2023 |
| Gulf Consultants Limited | Financial services | 2006 |
| Gulo Group Limited | Wholesale & retail | 2016 |
| Gulsan Auto Ltd | Other services | 2021 |
| Gulweather Ltd | Administrative & support | 2019 |
| Gundkalli Limited | Health & social care | 2014 |
| Guney Ozge Ltd | Hospitality | 2016 |
| Gunn Financial Ltd. | Financial services | 2018 |
| Gunthorpe and Lowdham Motor Homes Ltd | Wholesale & retail | 2018 |
| Gunthorpe Camping Limited | Hospitality | 2025 |
| Gunthorpe Consulting Limited | Real estate | 2001 |
| Gunthorpe Leisure Boats Limited | Transport & logistics | 2010 |
| Gunthorpe Motorhomes Ltd | Extraterritorial | 2016 |
| Gura Smart Ltd | Administrative & support | 2019 |
| Gurash Limited | Hospitality | 2024 |
| Gurav Consultancy Ltd | Professional & scientific | 2012 |
| Gurjit Sanghera Notary Public Services Limited | Professional & scientific | 2019 |
| Gurkha Car Wash Limited | Administrative & support | 2026 |
| Gurkha Curry Nights Ltd | Hospitality | 2020 |
| Gurkha Express Holdings Ltd | Financial services | 2019 |
| Gurkha Kitchen (Nottingham) Ltd | Hospitality | 2022 |
| Gurkha Spice Cotgrave Ltd | Hospitality | 2023 |
| Gurkha Stop Ltd | Hospitality | 2021 |
| Gurkhas Curry Ltd | Hospitality | 2024 |
| Guru Club UK Ltd. | Wholesale & retail | 2021 |
| Guru Kirpa Estates Ltd | Real estate | 2021 |
| Gurume App Ltd | Information & communication | 2022 |
| GUS 2000 Finance Unlimited | Financial services | 2000 |
| GUS 2004 Limited | Financial services | 2004 |
| GUS Finance (2004) Limited | Financial services | 2004 |
| GUS Holdings (2004) Limited | Financial services | 2004 |
| GUS Holdings Unlimited | Financial services | 1998 |
| Gutkowski Transport Ltd | Administrative & support | 2017 |
| Guven Aras Ltd | Real estate | 2023 |
| GUY Birkin Mills Limited | Construction | 2013 |
| GUY Phoenix Media Ltd | Administrative & support | 2024 |
| GUY Point Limited | Other services | 2025 |
| GUY Sawle (Medicolegal) Ltd | Health & social care | 2011 |
| GV Geological Consulting Ltd | Professional & scientific | 2021 |
| GVA Holdings Ltd | Real estate | 2024 |
| Gvec Limited | Arts & recreation | 2025 |
| Gvlc Ltd | Information & communication | 2014 |
| GVN Design Ltd | Professional & scientific | 2021 |