| GS Verde Law Limited | Professional & scientific | 2012 |
| GS Verde Tax & Accountants Limited | Professional & scientific | 2009 |
| GS& YL LLP | | 2025 |
| GSD Group Ltd | Professional & scientific | 2015 |
| GSD People Solutions Ltd | Professional & scientific | 2026 |
| GSE Engineering Limited | Professional & scientific | 2020 |
| GSE Services Ltd | Professional & scientific | 2024 |
| GSG Machen Development Ltd | Construction | 2019 |
| GSG Plumbing and Heating Ltd | Construction | 2025 |
| GSK Wholesale Limited | Wholesale & retail | 2020 |
| GSM Mechanical Tech Ltd | Construction | 2022 |
| GSM Wealth Limited | Financial services | 2015 |
| GSP Medical Ltd | Health & social care | 2024 |
| GSP White Limited | Professional & scientific | 2009 |
| Gspi Capital Ltd | Manufacturing | 2023 |
| Gspw Limited | Professional & scientific | 2016 |
| GSR Cardiff Homes UK Ltd | Real estate | 2019 |
| GSR MOT Ltd | Wholesale & retail | 2018 |
| GSR Resolutions Limited | Information & communication | 2011 |
| GSS Tripay Ltd | Professional & scientific | 2025 |
| Gst-I Group Ltd | Information & communication | 2026 |
| GSV 2023 Limited | Professional & scientific | 2021 |
| GSV Newco (3) 2026 Limited | Professional & scientific | 2026 |
| GSV Project Beck Ltd | Administrative & support | 2020 |
| Gsvsder Mart Ltd | Wholesale & retail | 2025 |
| Gsxr K8 Ltd | Administrative & support | 2017 |
| GT Art Consulting Limited | Professional & scientific | 2013 |
| GT Family Holdings Ltd | Financial services | 2026 |
| GT Haven Global Limited | Wholesale & retail | 2026 |
| GT Locum Services Limited | Health & social care | 2008 |
| GT Mining Ltd | Mining & quarrying | 2020 |
| GT Square Ltd | Wholesale & retail | 2011 |
| GT Tyres Ltd | Wholesale & retail | 2025 |
| GT Underfloor Heating Limited | Construction | 2020 |
| GT Vision Trading UK Limited | Wholesale & retail | 2025 |
| GT Yarmouth HCW Ltd | Other services | 2018 |
| GT4 Consulting Limited | Mining & quarrying | 2026 |
| GT84 Ltd | Arts & recreation | 2023 |
| GTA Performance Ltd | Arts & recreation | 2016 |
| GTA Studio Ltd | Professional & scientific | 2024 |
| Gtdcs Limited | Wholesale & retail | 2016 |
| GTF Commerce Ltd | Wholesale & retail | 2024 |
| GTF Property Investments Ltd | Real estate | 2019 |
| GTG Investments Limited | Real estate | 2020 |
| GTI Computers (Portsmouth) Ltd. | Other services | 1994 |
| GTI London Ltd | Professional & scientific | 2014 |
| GTL Innovation Ltd | Construction | 2021 |
| GTM Financial Limited | Financial services | 2013 |
| Guan L Ltd | Wholesale & retail | 2025 |
| Guang Zhou DE LAI Trade Co., Ltd | Administrative & support | 2022 |
| Guangdong Jiumu Kitchen & Bathroom Electric Appliance Co., Ltd | Manufacturing | 2021 |
| Guangdong Meiling Technology Group Co., Ltd. | Extraterritorial | 2019 |
| Guangdong UMI Lighting Technology Ltd | Manufacturing | 2025 |
| Guangming Cultural Media Ltd | Financial services | 2024 |
| Guangzhou Ailisha Clothing Co., Ltd | Manufacturing | 2023 |
| Guangzhou Aoke Lighting Appliance Co., Ltd. | Administrative & support | 2022 |
| Guangzhou Chinese Whale Trading Co., Ltd | Administrative & support | 2024 |
| Guangzhou Leadergame Technology Co., Ltd | Extraterritorial | 2021 |
| Guangzhou Wansent Import and Export Ltd | Wholesale & retail | 2025 |
| Guard Corps (UK) Ltd | Administrative & support | 2026 |
| Guard N Watch Ltd | Information & communication | 2014 |
| Guardemand Ltd | Administrative & support | 2023 |
| Guardian Audit Integrity Nexus Limited | Professional & scientific | 2025 |
| Guardian Direct Protection Ltd | Administrative & support | 2023 |
| Guardian Drink Holders Limited | Wholesale & retail | 2007 |
| Guardian Healthcare Limited | Health & social care | 2017 |
| Guardian of Time Ltd | Wholesale & retail | 2016 |
| Guardian Secure Force Ltd | Administrative & support | 2025 |
| Guardnestuk Limited | Administrative & support | 2026 |
| Guardo Ltd | Other services | 2025 |
| Guards Online Ltd | Administrative & support | 2018 |
| Gubbins Enterprises Limited | Agriculture & fishing | 2018 |
| Gucci Flora Ltd | Wholesale & retail | 2025 |
| GUD Vibes Limited | Wholesale & retail | 2024 |
| Guerin Electrical Limited | Construction | 2011 |
| Guest-Link Ltd | Information & communication | 2025 |
| Guesthouse 24 7 Limited | Hospitality | 2023 |
| Guestlist Limited | Wholesale & retail | 2021 |
| Guestpostforyou Ltd | Wholesale & retail | 2021 |
| Guglielmoni Limited | Professional & scientific | 2017 |
| Gugogeorge Limited | Hospitality | 2016 |
| Gugu (Finance) Ltd | Financial services | 2025 |
| Guildhall Tavern Residential Limited | Households | 2004 |
| Guildhatch Ltd | Professional & scientific | 2013 |
| Guildsman Limited | Professional & scientific | 2011 |
| Guimrano Services Ltd | Construction | 2020 |
| Guin IS Good Software Ltd | Information & communication | 2018 |
| Guiomar VTC Management Ltd | Information & communication | 2025 |
| Guitar Cities Limited | Education | 2011 |
| Guitar Parts & Services Limited | Manufacturing | 2019 |
| Gujjar&Jehlm Ltd | Wholesale & retail | 2026 |
| GUL Stana Ltd | Wholesale & retail | 2025 |
| GUL Xalo Ltd | Wholesale & retail | 2025 |
| Gul-E-Afghan Ltd | Manufacturing | 2025 |
| Gulberg Air Travel Limited | Administrative & support | 2012 |
| Guldur Limited | Information & communication | 2025 |
| Gulenim Group Commerce International Limited | Information & communication | 2023 |
| Gulersg Ltd | Wholesale & retail | 2025 |
| Gules Group Ltd. | Wholesale & retail | 2025 |
| Gulf Ambition Trading and Business Company Limited | Wholesale & retail | 2025 |