| Ghost Motion Ltd | Information & communication | 2019 |
| GHX Ventures (UK) Ltd | Public administration | 2020 |
| Giant Lobster Productions Ltd | Professional & scientific | 2014 |
| Giantech Ltd | Information & communication | 2018 |
| Gideotech Limited | Construction | 2018 |
| Gigaglobaloverseas Ltd | Professional & scientific | 2026 |
| Gilbert Mews Limited | Households | 2001 |
| Gilded Partners Ltd | Wholesale & retail | 2025 |
| Gilgrove & Sons Ltd | Wholesale & retail | 2025 |
| Gill Perez & Co Limited | Wholesale & retail | 2025 |
| Gillies Property Group Ltd | Real estate | 2025 |
| Gillimar Limited | Information & communication | 2016 |
| Gimlet Consulting Limited | Professional & scientific | 2014 |
| Gina Y Care Limited | Health & social care | 2022 |
| Gingerbread Property Services Limited | Real estate | 2022 |
| Ginkgo Consulting Limited | Professional & scientific | 2026 |
| Gino Luxe Apparel Ltd | Wholesale & retail | 2025 |
| Giosa Enterprises Ltd | Construction | 2019 |
| Gioskin Limited | Health & social care | 2025 |
| Gita Nails Ltd | Health & social care | 2026 |
| Gitaden Consultancy Ltd | Professional & scientific | 2020 |
| Gitmalu Ltd | Wholesale & retail | 2025 |
| Givmi Solutions Ltd | Information & communication | 2015 |
| GJ Building Limited | Construction | 2008 |
| Gjon Hvac Ltd | Construction | 2025 |
| Gjoshi Driving School Limited | Education | 2023 |
| Gjoshi's Ltd | Real estate | 2026 |
| GJS Surface Restoration Ltd | Construction | 2014 |
| GJT Healthcare Consultancy Limited | Information & communication | 2021 |
| GJY Consulting Limited | Professional & scientific | 2012 |
| GK Property Group Ltd | Real estate | 2019 |
| GK Property Letting Ltd | Real estate | 2021 |
| Gkbrom Ltd | Hospitality | 2020 |
| GKF Contracting Limited | Manufacturing | 2014 |
| GKK Grocery Ltd | Wholesale & retail | 2025 |
| GL London-Uk Ltd | Real estate | 2019 |
| Gladsom Limited | Hospitality | 2017 |
| Gladwell Bramshaw Limited | Financial services | 2019 |
| Glam Cosmo Limited | Wholesale & retail | 2023 |
| Glamour Trading Ltd | Extraterritorial | 2014 |
| Glanville Properties Limited | Real estate | 1988 |
| Glazeview Windows Limited | Construction | 2018 |
| Glebe Road Freehold Ltd | Households | 2008 |
| Gledhill&Sons Family Funeral Directors Ltd | Other services | 2024 |
| Glen Freehold (Bromley) Limited | Households | 2002 |
| Glendale Homes (UK) Limited | Real estate | 2014 |
| Gleneagle Investments Limited | Financial services | 2017 |
| Glenmore Lodge Freehold Ltd | Real estate | 2007 |
| Glitter Addictz UK Ltd | Other services | 2025 |
| Glnj Ltd | Real estate | 2026 |
| Global AI Tech Ltd | Information & communication | 2025 |
| Global Alliance Limited | Administrative & support | 1999 |
| Global Convoy Limited | Professional & scientific | 2018 |
| Global Feet Ltd | Hospitality | 2019 |
| Global Guidance Ltd. | Other services | 2022 |
| Global Human Rights Centre C.I.C. | Professional & scientific | 2025 |
| Global Learning Experiences Ltd | Education | 2021 |
| Global Madness Limited | Hospitality | 2024 |
| Global Media Research Ltd | Administrative & support | 2013 |
| Global Monitoring and Information Agency Ltd | Information & communication | 2009 |
| Global Parking Solution Limited | Professional & scientific | 2010 |
| Global Prodec Limited | Construction | 2021 |
| Global Resource Experts Ltd | Administrative & support | 2025 |
| Global Sales Consulting Ltd | Professional & scientific | 2015 |
| Global Vetting Solutions Limited | Professional & scientific | 2015 |
| Globaltone Studios Limited | Manufacturing | 2025 |
| Globe Traders UK Ltd | Other services | 2012 |
| Glocal HR Ltd | Administrative & support | 2025 |
| Glosam Limited | Real estate | 2006 |
| Gloucester Gardens Freehold Limited | Households | 2022 |
| Glow Academy London Ltd | Education | 2025 |
| Glow Medical & Laser Clinic Ltd | Other services | 2026 |
| Glowbyzee Limited | Wholesale & retail | 2020 |
| Glowmo Ltd | Health & social care | 2023 |
| GLS Construction Ltd | Construction | 2024 |
| Gluvbrand.Co.Site Ltd | Wholesale & retail | 2026 |
| GLV Parc Ltd | Real estate | 2023 |
| GM Peake Construct Ltd | Construction | 2018 |
| GM Property Assets Limited | Real estate | 2021 |
| GMK Builders Ltd | Construction | 2022 |
| GMT Finances Limited | Professional & scientific | 2019 |
| GMV (Block 202) RTM Company Limited | Households | 2024 |
| GN Window and Doors Ltd | Construction | 2024 |
| GNA Construction Limited | Construction | 2025 |
| GNA Group Solutions Limited | Construction | 2025 |
| GNL Facilities Group Ltd | Administrative & support | 2026 |
| Gnvm Ltd | Health & social care | 2022 |
| Go Green Boilers Limited | Construction | 2016 |
| Go Houndz Ltd | Other services | 2024 |
| Go to Services Group Limited | Construction | 2017 |
| Goalmoor Limited | | 1993 |
| Goat Wharf (London) RTM Company Limited | Real estate | 2026 |
| Goatley Hirst Ltd | Real estate | 2019 |
| GOBACK2BASICS Ltd | Wholesale & retail | 2011 |
| Gobi Flower Ltd | Wholesale & retail | 2022 |
| God's Mercy Ltd | Health & social care | 2021 |
| Godley & Co Ltd | Professional & scientific | 2013 |
| Godwin & Co. Properties Limited | Real estate | 2026 |
| Goethical Marketplace Ltd | Wholesale & retail | 2018 |
| Gogi Healthcare Limited | Health & social care | 2008 |