| Gasking Engineers Ltd | Construction | 2018 |
| Gausia M M Travels Limited | Financial services | 2024 |
| GB Hardwood Flooring Ltd | Construction | 2015 |
| GB Hybrid Ltd | Wholesale & retail | 2023 |
| GB Testing Ltd | Financial services | 2026 |
| GB Top Brickwork Ltd | Construction | 2024 |
| Gbaaz Property Ltd | Real estate | 2026 |
| Gbemtan Investment Limited | Professional & scientific | 2012 |
| Gbflow Limited | Administrative & support | 2013 |
| GBS Fire Protection Ltd | Construction | 2016 |
| GD Cars Ltd | Wholesale & retail | 2014 |
| Gemries Solutions UK Limited | Hospitality | 2011 |
| General Building VP Ltd | Construction | 2021 |
| Genetech Pharmaceuticals Limited | Wholesale & retail | 2019 |
| Genius Support Services Ltd | Administrative & support | 2021 |
| Genius Ventures Ltd | Real estate | 2024 |
| Genz Services Limited | Administrative & support | 2026 |
| Geoclad Ltd | Construction | 2019 |
| George & Bakers Ltd | Real estate | 2010 |
| George Scott Roper Limited | Information & communication | 2020 |
| Georgy Estates Ltd | Real estate | 2024 |
| Geotom Limited | Transport & logistics | 2010 |
| GEP Property Limited | Professional & scientific | 2008 |
| GEP Safety Consultants Limited | Professional & scientific | 2007 |
| Getactiveemerging Ltd | Health & social care | 2024 |
| Getmaksolutions Limited | Information & communication | 2021 |
| Getsmartstreet Ltd | Information & communication | 2026 |
| GG Electrical Site Management Ltd | Construction | 2014 |
| Gges Properties Ltd | Real estate | 2025 |
| Ghani Group Ltd | Construction | 2022 |
| Gift Agency Limited | Health & social care | 2021 |
| Gillanee Ltd | Financial services | 2024 |
| Gingerdoms Limited | Real estate | 2024 |
| Ginjohn Demolition Limited | Construction | 2019 |
| Ginte Ltd | Other services | 2023 |
| Gios Ktchn Ltd | Hospitality | 2026 |
| Giving Hope Care Ltd | Health & social care | 2007 |
| GJG Recruitment Ltd | Administrative & support | 2020 |
| GJW Consultancy Limited | Information & communication | 2019 |
| Glam Facade Installation Ltd | Construction | 2017 |
| Glam Facade Ltd | Administrative & support | 2022 |
| GLI Trading Ltd | Wholesale & retail | 2019 |
| Glidefleet Ltd | Transport & logistics | 2025 |
| Glinex Ltd | Wholesale & retail | 2021 |
| Global Career Pathway Ltd | Education | 2025 |
| Global Changes Construction Ltd | Construction | 2020 |
| Global Container Solutions Ltd | Wholesale & retail | 2017 |
| Global Digital Consultant Ltd | Administrative & support | 2023 |
| Global Digital Mental Health Ltd | Health & social care | 2022 |
| Global Direct Options Ltd | Transport & logistics | 2018 |
| Global Edge Ltd | Wholesale & retail | 2023 |
| Global Legacy Scholars House Ltd | Education | 2006 |
| Globus Technology Limited | Information & communication | 2023 |
| Gloucester Terrace Three Limited | Real estate | 2020 |
| Gloucester Terrace Two Limited | Real estate | 2020 |
| Glow by SKL Ltd | Other services | 2024 |
| Glowing Code Ltd | Wholesale & retail | 2026 |
| Glowing Light Limited | Health & social care | 2023 |
| GLS Logistics Ltd | Wholesale & retail | 2021 |
| GLX Analytics Ltd | Information & communication | 2018 |
| GM Brothers Construction Ltd | Construction | 2022 |
| GMF Haulage Ltd | Construction | 2026 |
| GMM Service & Repairs Limited | Wholesale & retail | 2017 |
| GNS Digital Ltd | Wholesale & retail | 2023 |
| Go Biotech Solutions Ltd | Professional & scientific | 2025 |
| Go Swift Ltd | Education | 2025 |
| Gocartfinds Ltd | Wholesale & retail | 2026 |
| GOD IS Great Ministries Limited | Other services | 2013 |
| Gold Home Building Contractors Ltd | Construction | 2018 |
| Gold Synergy Limited | Professional & scientific | 2012 |
| Golden ERA Tradings Ltd | Wholesale & retail | 2026 |
| Golden Healthcare Solutions Limited | Health & social care | 2019 |
| Golden Seal Plumbing & Tiling Ltd | Construction | 2024 |
| Golden Standard Commercial Cleaning Ltd | Administrative & support | 2023 |
| Goldtouch Properties Limited | Extraterritorial | 2005 |
| Good Deed CUP Limited | Wholesale & retail | 2026 |
| Goodfrontend.Dev Ltd | Information & communication | 2021 |
| Goodger Holdings Limited | Real estate | 2019 |
| Goodger Ltd | Construction | 2022 |
| Goodger Properties Limited | Other services | 2024 |
| Goodger Specialist Equipment Limited | Administrative & support | 2017 |
| GPS Cargo Handling Ltd | Manufacturing | 2019 |
| Grace N.E.M Ltd | Health & social care | 2022 |
| Grace to Grace School of Motoring Ltd | Education | 2014 |
| Grace's House Ltd | Real estate | 2025 |
| Gracead Ltd | Health & social care | 2020 |
| Grafton Support Services Ltd | Administrative & support | 2018 |
| Graham Property Sourcing Ltd | Hospitality | 2025 |
| Grand Line Motors HQ Ltd | Wholesale & retail | 2024 |
| Grand Line Motors Ltd | Wholesale & retail | 2023 |
| Grand Line Services Ltd | Wholesale & retail | 2024 |
| Granite Builders Limited | Construction | 2020 |
| Grants Paymentsolutions Ltd | Information & communication | 2012 |
| Granville Carpentry Limited | Construction | 2011 |
| Graphicsfitter Limited | Construction | 2023 |
| Great Five Ltd | Wholesale & retail | 2020 |
| Green Courtesy Cars Limited | Administrative & support | 2010 |
| Green Energy Girls Ltd | Construction | 2025 |
| Green Pine Construction Ltd | Construction | 2017 |
| Green Tara Consultancy Ltd | Professional & scientific | 2018 |