| Gillies Consulting Limited | Information & communication | 2014 |
| Gillitas Garage Company Limited | Construction | 2020 |
| Gillitas Limited | Construction | 2020 |
| GIN Structures Ltd | Construction | 2020 |
| Ginger HR Limited | Administrative & support | 2019 |
| Ginger K KAT Limited | Real estate | 2013 |
| Ginger Property Investment Limited | Real estate | 2025 |
| GIO Holdings Limited | Real estate | 2015 |
| Giuldeea Limited | Wholesale & retail | 2018 |
| Giuseppe Lolli Ltd | Information & communication | 2022 |
| GIV Motors Ltd | Wholesale & retail | 2023 |
| GJB Law Ltd | Professional & scientific | 2010 |
| GJM Property Limited | Real estate | 2001 |
| GJN Associates Limited | Information & communication | 2002 |
| Glasgow Theatres Limited | Arts & recreation | 2002 |
| Glaslyn Investments Limited | Extraterritorial | 1997 |
| Glassmaster (Services) Limited | Construction | 2014 |
| Glaswick Associates Limited | Professional & scientific | 2003 |
| Glentana Investments Limited | Financial services | 2009 |
| GLL Consultancy Ltd | Professional & scientific | 2024 |
| Global Advisory Limited | Professional & scientific | 2025 |
| Global Auto Recovery Limited | Wholesale & retail | 2022 |
| Global Autodrive Limited | Administrative & support | 2018 |
| Global Builders London Ltd | Construction | 2025 |
| Global Business & Trade Consulting Ltd | Wholesale & retail | 2014 |
| Global Business Management Ltd (UK) Ltd | Professional & scientific | 2015 |
| Global Computer Connections Limited | Information & communication | 1980 |
| Global Drinks Advisory Services Ltd | Professional & scientific | 2021 |
| Global Drinks Holdings Ltd | Professional & scientific | 2023 |
| Global Foods and Beverages Private Limited | Hospitality | 2024 |
| Global Health Clinics Ltd | Health & social care | 2016 |
| Global Health Outcomes Experts Ltd | Real estate | 2024 |
| Global Hire UK Ltd | Administrative & support | 2013 |
| Global Kinetics UK Corporation Limited | Wholesale & retail | 2023 |
| Global Situational Awareness Limited | Information & communication | 2023 |
| Global Support Limited | Information & communication | 1997 |
| Global Synergy Partners Limited | Professional & scientific | 2025 |
| Global Testing Limited | Information & communication | 2024 |
| Global Trade Business Ltd | Wholesale & retail | 2025 |
| Global Travel Management Limited | Administrative & support | 1997 |
| Global Wellness Education Network Limited | Other services | 2019 |
| Globe Law and Business Limited | Information & communication | 2015 |
| Globewide Computing Limited | Information & communication | 2000 |
| Gloster Court Management Company Limited | Households | 1980 |
| GLR Developers Ltd | Construction | 2021 |
| GLR Homes Ltd | Construction | 2021 |
| Glue Worldwide Ltd | Professional & scientific | 2013 |
| GM Cleaning Limited | Administrative & support | 2020 |
| GM Dream Homes Ltd | Real estate | 2024 |
| GME Commercial GAS Services Limited | Construction | 2008 |
| GMH (2004) Limited | Construction | 2004 |
| GN Services Project & Construction Management Solutions Ltd | Construction | 2025 |
| Gnaff Healthcare Limited | Health & social care | 2023 |
| Gnme Consulting Ltd | Information & communication | 2023 |
| GNY Holdings Ltd | Real estate | 2021 |
| GO2 Property Services Limited | Other services | 2018 |
| Gochiro Ltd | Health & social care | 2025 |
| Godalming Cars Ltd | Transport & logistics | 2016 |
| Godeseth Consulting Ltd | Professional & scientific | 2025 |
| Godman Construction Limited | Construction | 2021 |
| Godman Developments Limited | Construction | 2024 |
| Gogar Tech and Vape Limited | Wholesale & retail | 2025 |
| Gogreen Formula Ltd | Professional & scientific | 2022 |
| Goha Group Ltd | Construction | 2023 |
| Gold Rooms Solutions Ltd | Construction | 2026 |
| Goldberg Thierry Limited | Professional & scientific | 2024 |
| Golddeepcleaning Ltd | Administrative & support | 2025 |
| Golden Autumn Care Limited | Health & social care | 2022 |
| Golden Fleece 1982 Limited | Real estate | 2023 |
| Golden Pound Estates Limited | Construction | 2025 |
| Golden Waffle Ltd | Hospitality | 2024 |
| Goldensquarebuilding Ltd | Construction | 2025 |
| Goldheart Automotive Limited | Administrative & support | 2022 |
| Goldnest Holdings Ltd | Real estate | 2023 |
| Goldney Ventures Limited | Real estate | 2005 |
| Goldtech Care Services Ltd | Health & social care | 2020 |
| Goldthorn Marketing Limited | Administrative & support | 1992 |
| Goldtrex Investments Limited | Administrative & support | 2008 |
| Golf Alpha Tango Ltd | Administrative & support | 2017 |
| Golf Links Limited | Construction | 2014 |
| Good Earth Electrical Ltd | Construction | 2016 |
| Good Fermentation Limited | Hospitality | 2022 |
| Good Sports Limited | Wholesale & retail | 2005 |
| Goodheart Ltd | Administrative & support | 2023 |
| Goodoaks Consulting Limited | Professional & scientific | 2023 |
| Gordino Ltd | Wholesale & retail | 2026 |
| Gordion Ltd | Professional & scientific | 2022 |
| Gordon West Limited | Households | 2026 |
| Gordon's School Academy Trust | Education | 2011 |
| Gorgeous Wealth (UK) Limited | Extraterritorial | 2008 |
| Gorgon City Media Limited | Construction | 2022 |
| Gorilla EGG Creative Ltd | Administrative & support | 2024 |
| Gorsewood Consulting Limited | Professional & scientific | 2024 |
| Gosling & Warne Limited | Construction | 2015 |
| Gouna Homes Ltd | Real estate | 2026 |
| Gourmet Culture Co Limited | Wholesale & retail | 2023 |
| Gourmet on Wheels by Irina Foodie & Co. Ltd | Hospitality | 2025 |
| GP Experts Limited | Administrative & support | 2013 |
| GR China Ltd | Administrative & support | 2021 |
| GR India Ltd | Administrative & support | 2021 |