| General Ventures Limited | Administrative & support | 2008 |
| Generous Motors Ltd | Wholesale & retail | 2026 |
| Genesis Education Consultancy Ltd | Education | 2025 |
| Genesis Medical Ltd | Health & social care | 2022 |
| Genesis Technical Services (GB) Ltd | Other services | 2020 |
| Genesis Technical Services (London) Ltd | Construction | 2020 |
| Genesys Ventures Limited | Real estate | 2018 |
| Genius AI Solutions Ltd | Information & communication | 2014 |
| Genius Alliance Ltd | Wholesale & retail | 2025 |
| Genius IT Systems Ltd | Information & communication | 2025 |
| Gentjan Ceka Ltd | Construction | 2023 |
| Gentle Link Limited | Other services | 2015 |
| Genyus Wolfes Ltd | Construction | 2023 |
| George Webb Finn LLP | | 2009 |
| Georgia Carpet and Flooring Ltd | Construction | 2024 |
| Germany Tyres Ltd | Wholesale & retail | 2025 |
| GET in Transfer Ltd | Transport & logistics | 2024 |
| Getwork Construction and Training Services Ltd | Construction | 2016 |
| GF Window Cleaners Limited | Administrative & support | 2025 |
| GG Deliveries Ltd | Transport & logistics | 2026 |
| GG Essence UK Ltd | Wholesale & retail | 2026 |
| GG Holdings (Hanwell) Ltd | Construction | 2022 |
| GG Holdings (Properties) Ltd | Real estate | 2024 |
| GG Homes Ltd | Construction | 2020 |
| GG Improvements Ltd | Construction | 2025 |
| GG-032-577 Limited | Real estate | 2022 |
| GGD General Building Ltd | Construction | 2024 |
| GGN Construction Ltd | Construction | 2020 |
| GGR Concrete Ltd | Construction | 2026 |
| GH Properties (London) Ltd | Real estate | 2020 |
| Ghangas Brothers Delivery Service Limited | Transport & logistics | 2024 |
| Gharana Ltd | Wholesale & retail | 2021 |
| Ghauri Security Solutions Ltd | Administrative & support | 2025 |
| Ghazi Zoom Ltd | Wholesale & retail | 2026 |
| GHK Restaurants Ltd | Hospitality | 2020 |
| Gholia Properties Ltd | Construction | 2019 |
| Ghosia Goldsmith UK Limited | Wholesale & retail | 2022 |
| Ghotra Body Works Ltd | Wholesale & retail | 2024 |
| Ghotra Estate Ltd | Real estate | 2021 |
| Ghotra Haulage Ltd | Transport & logistics | 2022 |
| Ghotra Roofing Specialists Ltd | Construction | 2023 |
| Ghuman Construction Ltd | Construction | 2025 |
| Ghuman Logistics Ltd | Transport & logistics | 2026 |
| Ghuman London Limited | Transport & logistics | 2024 |
| Ghummanhomes Ltd | Real estate | 2024 |
| GI Associates Ltd | Health & social care | 2019 |
| GI Interior Limited | Professional & scientific | 2025 |
| Giaa Investments Ltd | Real estate | 2016 |
| Giant Export Services Limited | Wholesale & retail | 1982 |
| Gift Trolley Ltd | Wholesale & retail | 2015 |
| GIFT4YOU Limited | Manufacturing | 2025 |
| GIFTED2U Limited | Information & communication | 2015 |
| Gigo Garments Ltd | Wholesale & retail | 2025 |
| GIL Enterprises Ltd | Construction | 2021 |
| Gill Boys Ltd | Transport & logistics | 2016 |
| Gill Construction & Insulation Services Limited | Construction | 2025 |
| Gill Consulting Engineers Limited | Professional & scientific | 2011 |
| Gill Foods Limited | Hospitality | 2019 |
| Gill Innovations Ltd | Construction | 2026 |
| Gill Platinum Homes Ltd | Real estate | 2023 |
| Gill Property Portfolio Limited | Real estate | 2018 |
| Gill Smile Ltd | Health & social care | 2026 |
| Gill Truckers Ltd | Transport & logistics | 2024 |
| Gillb Limited | Hospitality | 2019 |
| Gillmont Consulting Ltd | Construction | 2025 |
| Gillv Limited | Hospitality | 2019 |
| Gincos PVT Limited | Wholesale & retail | 2016 |
| Ginesh Property Limited | Real estate | 2026 |
| Ginesh Real Estate Limited | Real estate | 2019 |
| Ginger & Spice Hayes Ltd | Hospitality | 2025 |
| Gingerbread Estates Ltd | Real estate | 2018 |
| Gioma Ltd | Other services | 2011 |
| GJ Heating and Plumbing Ltd | Construction | 2021 |
| Gjini Ceiling Systems Limited | Construction | 2007 |
| GK Builders Development Constructions Ltd | Construction | 2025 |
| GK Construction & Project Managemment Ltd | Construction | 2025 |
| GK Heating Ltd | Construction | 2010 |
| GK Logistics Ltd | Transport & logistics | 2025 |
| Gkar Ltd | Wholesale & retail | 2025 |
| GKD Investment Ltd | Real estate | 2020 |
| GKS Property Investments Ltd | Real estate | 2026 |
| Glacies Ltd | Wholesale & retail | 2024 |
| Glad Training Ltd. | Education | 2024 |
| Gladstone Charles Accounting Ltd | Professional & scientific | 2020 |
| Glam Strokes Ltd | Wholesale & retail | 2023 |
| Glambygurps Ltd | Other services | 2025 |
| Glamis Solicitors Ltd | Professional & scientific | 2020 |
| Glamour Construction UK Limited | Construction | 2020 |
| Glamour Lounge Hair and Beauty Salon Ltd | Other services | 2025 |
| Glance Fashion & Accessories Ltd | Other services | 2018 |
| Glass & Fusion Limited | Manufacturing | 2016 |
| Glass & Windows Solutions Ltd | Construction | 2020 |
| Glaze and More Ltd | Construction | 2019 |
| Glaze IT Limited | Other services | 2024 |
| Glazor UK Ltd | Other services | 2014 |
| Gledwood Care Homes Limited | Health & social care | 2013 |
| Gledwood Couriers Limited | Administrative & support | 2021 |
| Glendola Irish Bars Limited | Hospitality | 1994 |
| Glendola Leisure (Holdings) Limited | Hospitality | 2001 |
| Glendola Leisure 2 Limited | Hospitality | 2006 |