| Ghazal Medical Limited | Health & social care | 2020 |
| Ghazanfar Partners Ltd | Health & social care | 2026 |
| Ghost Systems Ltd | Information & communication | 2024 |
| GHW Consulting Engineers Limited | Professional & scientific | 2007 |
| Gian Capital Limited | Financial services | 2018 |
| Gian Ltd | Real estate | 2008 |
| Gib's Cherished Numbers Limited | Administrative & support | 2013 |
| Gift Hampers Ltd | Wholesale & retail | 2020 |
| Gill & Co Investments Limited | Real estate | 2025 |
| Gill Family Homes Ltd | Real estate | 2024 |
| Gill Home Care Limited | Health & social care | 2022 |
| Gill Property Management Ltd | Real estate | 2024 |
| Gilliatune Ltd | Administrative & support | 2020 |
| Gilligan CS Ltd | Information & communication | 2024 |
| Gillman Davis Associates Limited | Administrative & support | 2015 |
| Giltbuild Limited | Manufacturing | 1985 |
| Gina Rose Beauty Ltd | Other services | 2023 |
| Ginger Badger Oak Limited | Manufacturing | 2018 |
| Gingko Garden Design Limited | Administrative & support | 2000 |
| Ginns & Gutteridge Limited | Extraterritorial | 1951 |
| Gino's Coleshill Limited | Hospitality | 2024 |
| Ginza Holdings Limited | Hospitality | 2022 |
| Gioto Limited | Hospitality | 2019 |
| Giraffe Plant Ltd | Construction | 2023 |
| Girling Evans Ltd | Real estate | 2021 |
| Girls HIT Harder Ltd | Education | 2025 |
| GJ Electrical and Event Services Ltd. | Construction | 2018 |
| GJF Solutions Limited | Information & communication | 2010 |
| GJL Learning and Development Ltd | Education | 2015 |
| GJS Healthcare Consulting Ltd | Professional & scientific | 2024 |
| Gkgn Ltd | Hospitality | 2023 |
| GL Cladding & Roofing Limited | Construction | 2014 |
| GL Consultants 1 Limited | Real estate | 2020 |
| GL Consultants 2 Limited | Real estate | 2020 |
| GL Consultants Limited | Administrative & support | 2014 |
| GL54 Limited | Professional & scientific | 2023 |
| GLA INV Limited | Real estate | 2019 |
| Gleneagles Consultants Limited | Extraterritorial | 2015 |
| Glenmuir International Limited | Administrative & support | 2013 |
| Glenpark Construction Limited | Construction | 2021 |
| Glide Design and Engineering Ltd | Professional & scientific | 2017 |
| Glimmer Pictures Limited | Information & communication | 2017 |
| Glimpze Limited | Wholesale & retail | 2011 |
| Global 101 Limited | Real estate | 2016 |
| Global Aviation Holdings Limited | Professional & scientific | 1994 |
| Global Aviation Limited | Transport & logistics | 1993 |
| Global Business Partnership Limited | Administrative & support | 2017 |
| Global Care Services Ltd. | Health & social care | 2016 |
| Global Game Makers Ltd. | Information & communication | 2025 |
| Global Link International Ltd | Financial services | 2020 |
| Global PPS UK Ltd | Construction | 2022 |
| Global Property Services Ltd | Real estate | 2016 |
| Global Risk Consulting Ltd | Financial services | 2026 |
| Global Strategy Insights Ltd | Professional & scientific | 2024 |
| Global Telecommunications Limited | Information & communication | 2000 |
| Global Top Home Improvements Ltd | Manufacturing | 2026 |
| Global Top Roofing & Guttering Specialists Limited | Construction | 2023 |
| Glory Glen Limited | Hospitality | 2016 |
| Glover's Trust | Health & social care | 2015 |
| GM Physiotherapy & Sports Clinic Limited | Health & social care | 2014 |
| GMC Media Group Limited | Information & communication | 2024 |
| GND Limited | Real estate | 2011 |
| GNG Financial Services Limited | Professional & scientific | 2026 |
| Gngk Contract Ltd | Administrative & support | 2021 |
| GNP Assets Limited | Real estate | 2017 |
| Go Greener Energy Limited | Professional & scientific | 2022 |
| Go Talking Ways Ltd | Health & social care | 2022 |
| Go Tenpin Limited | Professional & scientific | 2003 |
| Go-Well Services Ltd | Administrative & support | 2025 |
| Goalgate Limited | Real estate | 2018 |
| Goals Side Limited | Professional & scientific | 2025 |
| Gohil Properties Ltd | Real estate | 2017 |
| Goldbrooke Limited | Real estate | 2001 |
| Golden City Limited | Hospitality | 2013 |
| Golden Explorers Playgroup Ltd | Health & social care | 2025 |
| Golden Fleece Restaurant Ltd | Hospitality | 2025 |
| Golden Nest Services Limited | Administrative & support | 2026 |
| Golden Star Records Limited | Other services | 1999 |
| Goldfinch Global Estates Limited | Real estate | 2018 |
| Goldman & Sons Ltd. | Financial services | 2009 |
| Gomashin Ltd | Wholesale & retail | 2024 |
| Goodhaul Road Services Ltd | Transport & logistics | 2013 |
| Goodness Pots Limited | Manufacturing | 2025 |
| Goodshape of Boldmere Limited | Arts & recreation | 2022 |
| Goodvibeseeds Ltd | Wholesale & retail | 2021 |
| Goodys Properties Limited | Real estate | 2008 |
| Gornalls Funeral Services Limited, | Extraterritorial | 1963 |
| Goss Associates Ltd | Education | 2021 |
| Gosta Green Holdings Limited | Construction | 2018 |
| Goto Tester Ltd | Information & communication | 2022 |
| Gowda Associates Ltd | Real estate | 2021 |
| GP Emss Ltd | Health & social care | 2017 |
| GP Medicare Limited | Health & social care | 2021 |
| GP on Call Ltd | Health & social care | 2019 |
| Gpbr Properties Limited | Real estate | 2021 |
| GPL Group Ltd | Real estate | 2026 |
| Gpmp Ltd | Real estate | 2017 |
| GR SEC UK Ltd | Professional & scientific | 2025 |
| GR Trading Limited | Wholesale & retail | 2017 |
| Gr-One Limited | Wholesale & retail | 2023 |