| Genci Construction (South East) Limited | Construction | 2026 |
| Genderdoctors Limited | Health & social care | 2023 |
| Gene Limited | Health & social care | 2018 |
| General Cargo Inspections Ltd | Transport & logistics | 2024 |
| General Contracts Ltd | Construction | 2025 |
| General Investment Holdings Limited | Real estate | 2007 |
| General Masonry Services Ltd | Administrative & support | 2025 |
| General Trading and Property Development Ltd | Wholesale & retail | 2019 |
| Genesis Design & Build Ltd | Construction | 2022 |
| Genie FM Ltd | Other services | 2011 |
| Gensolar Limited | Construction | 2022 |
| Genusworks Limited | Information & communication | 2001 |
| Genx Properties Ltd | Real estate | 2020 |
| GEO Corporate Ltd | Information & communication | 2018 |
| Geom Properties Ltd | Real estate | 2026 |
| Geomatics Construction Limited | Professional & scientific | 2024 |
| Georgina Mcalister TC Limited | Administrative & support | 2015 |
| Geraldine Dowd Limited | Information & communication | 2013 |
| German Car Automotive Limited | Wholesale & retail | 2015 |
| GF Financial - London Ltd | Financial services | 2023 |
| GFD Broadway Telecom Ltd | Information & communication | 2014 |
| GG Brothers Ltd | Construction | 2025 |
| GG-893-393 Limited | Real estate | 2022 |
| GGV Services Ltd | Transport & logistics | 2005 |
| Ghaire Ltd | Information & communication | 2019 |
| Ghodasara Investments Ltd | Financial services | 2023 |
| GI Electric Ltd | Construction | 2019 |
| Giantstride Ventures Limited | Information & communication | 2014 |
| Gift House Supplies Limited | Wholesale & retail | 2020 |
| Gifted Homes Ltd | Hospitality | 2020 |
| Giftle Ltd | Information & communication | 2025 |
| Giftsfame.Com Ltd | Wholesale & retail | 2013 |
| GJ 15 Limited | Wholesale & retail | 2024 |
| Glam Atelier Ltd | Wholesale & retail | 2026 |
| Glamtech Essentials Ltd | Wholesale & retail | 2025 |
| Glangevlin Freehold Limited | Extraterritorial | 2016 |
| Glass & Grocery Ltd | Wholesale & retail | 2025 |
| Glassy Finish Ltd | Transport & logistics | 2024 |
| Glaze Plus Ltd | Manufacturing | 2023 |
| Glenfield Property Management Ltd | Households | 2019 |
| Glito Decor Ltd | Wholesale & retail | 2025 |
| GLL Publishing Ltd | Information & communication | 2022 |
| Global & More Ltd | Construction | 2021 |
| Global Accounting 4 U Ltd | Financial services | 2016 |
| Global Capital Management Ltd | Real estate | 2024 |
| Global Ductwork Services Ltd | Construction | 2016 |
| Global Edge Consult Ltd | Other services | 2024 |
| Global Educatour Ltd | Education | 2013 |
| Global Foodx Ltd | Hospitality | 2026 |
| Global Linings Limited | Extraterritorial | 2009 |
| Global Pathway International Ltd | Professional & scientific | 2025 |
| Global Property Brokers Management Limited | Households | 2018 |
| Global Qualifood Ltd | Hospitality | 2018 |
| Global Service & Provider Limited | Hospitality | 2024 |
| Global Tandoori Limited | Manufacturing | 2003 |
| Global West Consultancy Ltd | Administrative & support | 2017 |
| Global West London Ltd | Professional & scientific | 2019 |
| Glopet Resources Limited | Information & communication | 2010 |
| Glorious Brows and Nails Ltd | Other services | 2025 |
| Gloucester Management Limited | Manufacturing | 1945 |
| Glow Networks Limited | Information & communication | 2012 |
| Glow Telecom Limited | Extraterritorial | 2012 |
| Glowell Support Services Limited | Health & social care | 2020 |
| Glue Mgmt Ltd | Information & communication | 2025 |
| GMF Builders Ltd | Construction | 2015 |
| GMR Property Limited | Real estate | 2018 |
| GMS Carpets & Floorings Ltd | Construction | 2022 |
| GMS Construction Services Limited | Construction | 2008 |
| GMX Nominee 1 Limited | Professional & scientific | 2016 |
| GN Capital Partners Ltd | Education | 2018 |
| GND Group Ltd | Wholesale & retail | 2026 |
| GNE Property Development Ltd | Real estate | 2025 |
| Gnjay Limited | Transport & logistics | 2019 |
| Gnosco Financial Planning Ltd | Financial services | 2015 |
| Gnus Consult Limited | Construction | 2024 |
| Go Agile Cloud Limited | Information & communication | 2020 |
| Go Airports Ltd | Transport & logistics | 2022 |
| Go Ethnic Ltd | Wholesale & retail | 2011 |
| Go Netball Ltd | Arts & recreation | 2023 |
| Go Well Therapeutic Services Limited | Health & social care | 2025 |
| GO2RIDE Motorcycles Ltd | Wholesale & retail | 2025 |
| Goalseek Digital Ltd | Professional & scientific | 2022 |
| Goalspark Limited | Real estate | 2016 |
| Gocarely Ltd | Other services | 2022 |
| Gocarry Ltd | Wholesale & retail | 2026 |
| Gocer and Sero Limited | Health & social care | 2020 |
| GOD & Love Ltd | Hospitality | 2024 |
| Gold 22 (UK) Limited | Wholesale & retail | 2009 |
| Gold Brush Limited | Administrative & support | 2011 |
| Gold Star Cold Storage Ltd | Real estate | 2025 |
| Gold Time 4 U Limited | Hospitality | 2020 |
| Golden Avenue Ltd | Real estate | 2018 |
| Golden Bazar Ltd | Wholesale & retail | 2025 |
| Golden Bridge 8 Ltd | Wholesale & retail | 2025 |
| Golden Clef Ltd | Other services | 2013 |
| Golden Electronics Limited | Information & communication | 2016 |
| Golden Girls Properties Ltd | Real estate | 2025 |
| Golden House Construction Ltd | Construction | 2025 |
| Golden Scissors Trading Ltd | Other services | 2025 |
| Goldhonour Limited | Real estate | 2004 |