| Gemea House Ltd | Construction | 2007 |
| Gemsville Health Care Ltd | Administrative & support | 2024 |
| GEN XYZ Ltd | Manufacturing | 2026 |
| General Builders London Ltd | Construction | 2024 |
| Generous Kitchen Limited | Hospitality | 2025 |
| Genesis Marketing Services Ltd | Professional & scientific | 2016 |
| Genzee Limited | Information & communication | 2026 |
| Geotess and Sons Limited | Health & social care | 2009 |
| Geovida Healthcare and Property Services Ltd | Public administration | 2025 |
| GET on Track Marketing Ltd | Professional & scientific | 2025 |
| Get-It Tech Limited | Information & communication | 2025 |
| GG-883-960 Limited | Real estate | 2022 |
| GG-907-385 Limited | Real estate | 2022 |
| Ghazi Properties Limited | Households | 2025 |
| Ghumman Logistics Solution Ltd | Transport & logistics | 2025 |
| Ghumyatri Ltd | Administrative & support | 2025 |
| Gideon Investigations Ltd | Administrative & support | 2013 |
| Gilbridge Ltd | Information & communication | 2021 |
| Gilgal Capital Ltd | Information & communication | 2019 |
| Gilgal Global Investments Company Ltd | Professional & scientific | 2013 |
| Gilray (Essex) Limited | Construction | 2025 |
| GJG (PVT) Ltd | Real estate | 2026 |
| Gjoni Brothers Limited | Construction | 2008 |
| GK & Daughters Limited | Construction | 2024 |
| Glam Queen Pamper Parties Limited | Other services | 2014 |
| Glam Studio Ltd | Other services | 2023 |
| Glamour Properties Limited | Real estate | 2023 |
| Glazite Ltd | Manufacturing | 2024 |
| Global Essentials Treasures Ltd | Wholesale & retail | 2022 |
| Global Expresspay Ltd | Administrative & support | 2025 |
| Global Fintech and Finance Solutions Limited | Information & communication | 2023 |
| Global Food Emporium Limited | Wholesale & retail | 2024 |
| Global Foods Arena Ltd | Wholesale & retail | 2025 |
| Global Organic Products Ltd | Hospitality | 2025 |
| Global Reach Promotions Limited | Financial services | 2024 |
| Global Technology Services Limited | Information & communication | 2015 |
| Global Travel Holding Ltd | Professional & scientific | 2019 |
| Global UNI Gate Limited | Education | 2019 |
| Globalmaket Limited | Wholesale & retail | 2025 |
| Globalstone (London) Limited | Construction | 2013 |
| Globe Goers UK Ltd | Wholesale & retail | 2017 |
| Globemeth Express Parcel & Logistics Limited | Transport & logistics | 2014 |
| Globemeth Limited | Manufacturing | 2011 |
| Glomag Services Ltd | Information & communication | 2011 |
| Glorious & Aries Ltd | Transport & logistics | 2023 |
| Glorious African Foods Limited | Administrative & support | 2020 |
| Glory Petals Ace Limited | Wholesale & retail | 2022 |
| Glowre Limited | Manufacturing | 2025 |
| Glowsea Ltd | Wholesale & retail | 2023 |
| GM Properties Services Limited | Construction | 2026 |
| Gmaa Ltd | Construction | 2020 |
| GMB Lift Services Ltd | Manufacturing | 2015 |
| Gobajedan Limited | Health & social care | 2013 |
| Gobmed Services Ltd | Professional & scientific | 2011 |
| GOD First Autos Ltd | Wholesale & retail | 2013 |
| Gold Heath Properties Ltd | Real estate | 2025 |
| Gold Legacy Services Limited | Professional & scientific | 2018 |
| Gold PNP Serviced Accommodations Ltd | Real estate | 2022 |
| Golden Champions UK Ltd | Other services | 2023 |
| Golden Gleam Services Ltd | Households | 2015 |
| Golden Mellow CIC | Hospitality | 2025 |
| Golden Scissors Two Ltd | Other services | 2025 |
| Goldentee Cakes and Desserts Ltd | Wholesale & retail | 2025 |
| Goldfields Services Limited | Health & social care | 2016 |
| Golfers' Gift Shop Ltd | Wholesale & retail | 2019 |
| Gomu Gomu Limited | Wholesale & retail | 2025 |
| Good Ground Community CIC | Education | 2026 |
| Good Headmaster Limited | Hospitality | 2025 |
| Gorix Ltd | Construction | 2019 |
| Goshen Real Estate Ltd | Real estate | 2020 |
| Goss Construction Ltd | Construction | 2025 |
| Gotiptap Ltd | Administrative & support | 2017 |
| Gouhomes Limited | Construction | 2017 |
| Gourmet Gadgetry Limited | Wholesale & retail | 2011 |
| GR Sports UK Ltd | Arts & recreation | 2023 |
| Grace Education Limited | Education | 2001 |
| Grace Grace Grace Limited | Transport & logistics | 2023 |
| Grace Lane Ltd | Transport & logistics | 2020 |
| Grace Ventures Properties Limited | Real estate | 2024 |
| Graceland Edusports Management (G E M) Ltd | Education | 2024 |
| Gracious Jewels Childcare Services Ltd | Health & social care | 2015 |
| Grand Health Ltd | Health & social care | 2023 |
| Grandcraftdesign Ltd | Wholesale & retail | 2021 |
| Great Construction Limited | Construction | 2017 |
| Great Shalom Healthcare Limited | Health & social care | 2018 |
| Green -Acres Resources Ltd | Professional & scientific | 2026 |
| Green Mosaic Balham Pizza Limited | Hospitality | 2025 |
| Green Valley Care Services Ltd | Health & social care | 2020 |
| Greenleaf UK Security Ltd | Administrative & support | 2019 |
| Greenshore Limited | Hospitality | 2019 |
| Greenway Ventures Limited | Real estate | 2019 |
| Gren Tours Ltd | Administrative & support | 2010 |
| Gridline Construction Limited | Construction | 2014 |
| Ground Investments Limited | Real estate | 2022 |
| Ground Zero Estates Ltd | Real estate | 2024 |
| Ground Zero Estates Management Ltd | Real estate | 2026 |
| Groundforce Paving & Landscaping Ltd | Administrative & support | 2014 |
| GSK Accountancy Ltd | Professional & scientific | 2012 |
| GSK Bookkeeping Ltd | Professional & scientific | 2012 |
| GSK Property Development Limited | Construction | 2013 |