| GI Transport Ltd | Transport & logistics | 2015 |
| GIA Metalwork Ltd | Construction | 2026 |
| Giani&Son Transport Limited | Construction | 2020 |
| Giannone Services Limited | Professional & scientific | 2025 |
| Giant Care Solutions Limited | Hospitality | 2015 |
| Giant Staffing Ltd | Hospitality | 2018 |
| Gibbons Groundworks Limited | Construction | 2020 |
| Gibor & Druids LLP | | 2017 |
| Gift World Ltd | Wholesale & retail | 2019 |
| Gifting Management Limited | Professional & scientific | 2023 |
| Gigel CGG Ltd | Transport & logistics | 2025 |
| Gigtin Ltd | Information & communication | 2024 |
| Giles Groundworks Ltd | Construction | 2013 |
| Gill Civil & Construction Limited | Construction | 2019 |
| Gill Global Group Ltd | Real estate | 2023 |
| Gill Heating and Plumbing Ltd | Financial services | 2022 |
| Gill Legal Consultancy Limited | Professional & scientific | 2019 |
| Gill Plant Sales Limited | Wholesale & retail | 2019 |
| Gill Plant Services Limited | Administrative & support | 2011 |
| Gillani Transport Limited | Transport & logistics | 2025 |
| Gilm Limited | Transport & logistics | 2024 |
| Gilpin Properties Limited | Construction | 2019 |
| Ginn Ltd | Wholesale & retail | 2026 |
| Ginoda Holdings Ltd | Financial services | 2025 |
| Girgis Homes Limited | Real estate | 2022 |
| Girleightreats Ltd | Hospitality | 2026 |
| Girls Power Limited | Hospitality | 2019 |
| GIS CAN Ministry Ltd | Health & social care | 2018 |
| Gismedix Global Ltd | Wholesale & retail | 2026 |
| Gitbritech Limited | Wholesale & retail | 2025 |
| Gittens Limited | Construction | 2025 |
| Giuva Services Limited | Health & social care | 2025 |
| GJ & a Properties Limited | Real estate | 2021 |
| GJ DRY Lining Limited | Construction | 2019 |
| GJ Software Limited | Information & communication | 2019 |
| Gjjg Limited | Real estate | 2020 |
| Gjmulgan Limited | Professional & scientific | 2006 |
| Gjoni Transport Ltd | Transport & logistics | 2025 |
| GK Aerotech Limited | Manufacturing | 2016 |
| GK Auto Hub Ltd | Wholesale & retail | 2025 |
| GK Mile Express Ltd | Transport & logistics | 2026 |
| GK Property Maintenance Ltd | Construction | 2024 |
| GK Zygala Limited | Transport & logistics | 2025 |
| GKN Solutions Limited | Information & communication | 2025 |
| GKR Consultancy Ltd | Education | 2019 |
| GL Hospitality Solutions Ltd | Administrative & support | 2019 |
| Glacier Accommodations Ltd | Real estate | 2021 |
| Glacier Accounting & Consulting Ltd | Professional & scientific | 2025 |
| Glacken Transport Services Ltd | Transport & logistics | 2009 |
| Gladedene Limited | | 1985 |
| Gladius Security Ltd | Administrative & support | 2019 |
| Gladstone Paving Ltd | Administrative & support | 2020 |
| Glam by KAT Ltd | Other services | 2022 |
| Glamorgan Limited | Hospitality | 2016 |
| Glamour Reverie Ltd | Wholesale & retail | 2024 |
| Glamvera Ltd | Wholesale & retail | 2025 |
| Glan Services Ltd | Information & communication | 2025 |
| Glance & Shine Daily Ltd | Administrative & support | 2025 |
| Glasswatch Ltd | Construction | 2013 |
| Glazing Shop Ltd | Wholesale & retail | 2021 |
| Gleamco Cleaning Services Ltd | Administrative & support | 2024 |
| Gleamzy Cleaning Services Ltd | Administrative & support | 2026 |
| Glenn Charles Appliance Services Ltd | Other services | 2024 |
| Glennon Investment Properties Ltd | Real estate | 2026 |
| Glenrock Consultants Limited | Construction | 2014 |
| Glide Haul Limited | Transport & logistics | 2018 |
| Gligor Multi Services Limited | Construction | 2019 |
| Glitterball South Shields Limited | Hospitality | 2016 |
| Gloadex Property Ltd | Real estate | 2026 |
| Global Access Trading Limited | Other services | 2025 |
| Global Business Management and Consultancy Ltd | Professional & scientific | 2014 |
| Global Cars Sale Ltd. | Wholesale & retail | 2011 |
| Global Cleaning Management Solutions Limited | Administrative & support | 2024 |
| Global Commercial London Limited | Real estate | 2025 |
| Global Commercial Property Limited | Real estate | 2025 |
| Global Current Energy Solution Group Limited | Energy | 2025 |
| Global CVS Trading Group Ltd | Wholesale & retail | 2021 |
| Global Education Consultancy Ltd | Education | 2022 |
| Global Fibre Network Solutions UK Ltd | Construction | 2025 |
| Global Goals Ltd | Wholesale & retail | 2026 |
| Global Grocery Ltd | Wholesale & retail | 2025 |
| Global Impact Foundation CIC | Information & communication | 2026 |
| Global Importers Ltd | Wholesale & retail | 2015 |
| Global Kosher Ltd | Wholesale & retail | 2008 |
| Global Level Promotion Limited | Manufacturing | 2023 |
| Global Link Networks Limited | Information & communication | 2025 |
| Global Logistical Suppliers Ltd | Wholesale & retail | 2018 |
| Global MK Limited | Real estate | 2023 |
| Global Motors Trader UK Ltd | Wholesale & retail | 2026 |
| Global Nest Solutions Limited | Hospitality | 2024 |
| Global Online Education Limited | Education | 2021 |
| Global Planning and Management Services Limited | Construction | 2025 |
| Global Prestige Limited | Professional & scientific | 2011 |
| Global Procurement Services (London) Ltd | Wholesale & retail | 2009 |
| Global Relocate UK Ltd | Transport & logistics | 2025 |
| Global Rochers Ltd | Wholesale & retail | 2014 |
| Global Roots Trading Limited | Wholesale & retail | 2025 |
| Global Source Expo Ltd | Wholesale & retail | 2025 |
| Global Star Appliances Limited | Wholesale & retail | 2025 |
| Global Tech Allies Ltd | Information & communication | 2024 |