| Gets Electrify Limited | Wholesale & retail | 2023 |
| Gettruck Limited | Transport & logistics | 2019 |
| GFF Contractors Limited | Construction | 2019 |
| GG-108-873 Limited | Real estate | 2022 |
| GG555 Care and Property Management Limited | Health & social care | 2024 |
| GHA Properties Ltd | Real estate | 2023 |
| Ghai Homes Ltd | Real estate | 2024 |
| Gharana Properties Ltd | Real estate | 2022 |
| Ghattaora Group Ltd | Real estate | 2023 |
| GHE Screeding Ltd | Construction | 2025 |
| GHL Builders Limited | Construction | 2021 |
| Ghosh Investment Ltd | Real estate | 2024 |
| Ghotra Heating & Plumbing Ltd | Construction | 2023 |
| Ghsh Ltd | Arts & recreation | 2026 |
| GI Property Management Limited | Households | 2022 |
| GIA Chiara Ltd | Professional & scientific | 2025 |
| GIA Corp Services Ltd | Professional & scientific | 2023 |
| GIA Corp UK Ltd | Wholesale & retail | 2015 |
| Giant Garage Partners Limited | Wholesale & retail | 2026 |
| Giant Ventures Group Limited | Wholesale & retail | 2024 |
| Giany Brothers Ltd | Real estate | 2025 |
| Giany Estates Ltd | Real estate | 2024 |
| Giany Property Management Ltd | Real estate | 2018 |
| Gibson's Coffee Company Ltd | Hospitality | 2024 |
| Gidar Family Investments Limited | Financial services | 2021 |
| Gidar Holdings Ltd | Financial services | 2015 |
| Gidar R Investments Ltd | Financial services | 2015 |
| Gigatron Company Ltd | Wholesale & retail | 2026 |
| Giggle & Graft Ltd | Construction | 2026 |
| Gignet Ltd | Information & communication | 2021 |
| GIL Security Services Ltd | Administrative & support | 2026 |
| Gilani Estates Limited | Real estate | 2020 |
| Gilbert Tech Limited | Wholesale & retail | 2022 |
| Gilead Sciences Europe Ltd. | Administrative & support | 2005 |
| Gilgamesh Estates Limited | Real estate | 2023 |
| Gill Home Investments Limited | Real estate | 2019 |
| Gill Management Ltd | Real estate | 2021 |
| Gill Property Estate Ltd | Real estate | 2025 |
| Ginger & Brown Movements Ltd | Transport & logistics | 2016 |
| Ginger and Garlic Grater Limited | Wholesale & retail | 2014 |
| Gintas MIL Construction Ltd | Construction | 2019 |
| Give Space CIC | Health & social care | 2020 |
| GJ7 Limited | Real estate | 2022 |
| GJC Car Sales Limited | Wholesale & retail | 2023 |
| GJC Repair Centre Limited | Wholesale & retail | 2024 |
| GKM Consulting Ltd | Professional & scientific | 2026 |
| GKR Investment Property Ltd | Real estate | 2023 |
| GKS - Centrepiece Ltd | Manufacturing | 1990 |
| Gktechnic Ltd | Manufacturing | 2022 |
| Gladwins Storage Limited | Construction | 2018 |
| Glamis Court (Firstgate) RTM Company Limited | Households | 2023 |
| Glamour Beauty Ltd | Other services | 2019 |
| Glasscraft Ltd | Construction | 2026 |
| Glasshouses HR Limited | Administrative & support | 2017 |
| Glenarran (High Wycombe) Limited | Real estate | 2004 |
| Glenock Place Management Company Limited | Households | 2016 |
| Glenroyd House Limited | Health & social care | 2001 |
| Glenwater House Residents Company Ltd | Households | 2018 |
| Glitched Tech CIC | Education | 2026 |
| Glitz and Gold Events Ltd | Arts & recreation | 2023 |
| Global Assist International Ltd | Information & communication | 2025 |
| Global Expodian Limited | Wholesale & retail | 2021 |
| Global Facilitation Services Limited | Information & communication | 2026 |
| Global Financial Investment Corporation Ltd | Hospitality | 2025 |
| Global Group Support Ltd | Administrative & support | 2020 |
| Global Healthy Life Limited | Households | 2024 |
| Global Hoarder Limited | Wholesale & retail | 2022 |
| Global Info Hub Ltd | Professional & scientific | 2026 |
| Global Legal Consultants Limited | Professional & scientific | 2025 |
| Global Link Cargo & Removals Ltd | Transport & logistics | 2007 |
| Global Parts Limited | Administrative & support | 2006 |
| Global Pathfinders Ltd | Professional & scientific | 2018 |
| Global Penaya Enterprise Ltd | Health & social care | 2025 |
| Global ROC Limited | Real estate | 2022 |
| Global Secure Solutions Ltd | Information & communication | 2024 |
| Globalconnects Network CIC | Education | 2026 |
| Globalution Limited | Information & communication | 2006 |
| Globe Enterprises London Limited | Real estate | 2017 |
| Globolution Limited | Information & communication | 2006 |
| Glocare Labs UK Limited | Manufacturing | 2016 |
| Glorious Trade Ltd | Professional & scientific | 2022 |
| Gloucester Court (Denham) Residents Association Limited | Households | 1992 |
| Gloucestershire Autism Services Limited | Health & social care | 1995 |
| Glow Social Media Ltd | Professional & scientific | 2021 |
| GLS Scaffolding Ltd | Construction | 2018 |
| Glyder Corporation Limited | Wholesale & retail | 2000 |
| GM Auto Detailing Ltd | Wholesale & retail | 2019 |
| GM Engineers & Contractors Limited | Construction | 2026 |
| GM Premium Brokers Ltd | Financial services | 2026 |
| GM Prop Limited | Real estate | 2018 |
| GM Villas Limited | Real estate | 2018 |
| GMC Civil Engineering Ltd | Construction | 2026 |
| Gmma Advisory Ltd | Professional & scientific | 2020 |
| Gmma Property Ltd | Real estate | 2022 |
| Gmra Limited | Real estate | 2013 |
| GMS Building Solutions Ltd | Construction | 2013 |
| GMS Training & Consulting Ltd | Other services | 2016 |
| GMT Freight & Logistics Ltd | Transport & logistics | 2025 |
| GN Transport Ltd | Administrative & support | 2012 |
| GNG Construction London Ltd | Construction | 2022 |