| GBS London Ltd | Construction | 2017 |
| GD Singh Limited | Transport & logistics | 2025 |
| GDI Roofing Support Services Ltd | Construction | 2022 |
| Gelato MIO Kingston Ltd | Real estate | 2021 |
| Gems House Consultancy Ltd | Hospitality | 2022 |
| Gemtech Business Solutions Limited | Information & communication | 2010 |
| GEN Z Worldpass Consultancy Limited | Professional & scientific | 2026 |
| General Facades Ltd | Construction | 2020 |
| Genie UK PVT Limited | Wholesale & retail | 2026 |
| Geniusgear Ltd | Wholesale & retail | 2024 |
| Geodis FF United Kingdom Ltd. | Transport & logistics | 1959 |
| Geoff Newman (Supply Drivers) Ltd. | Transport & logistics | 2016 |
| George BOC Limited | Transport & logistics | 2022 |
| Georgedetailingservice Ltd | Administrative & support | 2025 |
| Georginos Delights Limited | Wholesale & retail | 2021 |
| Gerry Webb Transport Services Limited | Transport & logistics | 1989 |
| GF Constrution Ltd | Construction | 2025 |
| GF Financial Limited | Professional & scientific | 2004 |
| GH Products Ltd | Wholesale & retail | 2018 |
| Ghai Consultancy Ltd | Information & communication | 2023 |
| Ghai Logistic UK Ltd | Transport & logistics | 2025 |
| Ghale Brothers Limited | Wholesale & retail | 2025 |
| GHS Construction Ltd | Construction | 2018 |
| Ghumman Investments Ltd | Real estate | 2018 |
| Ghumman Properties Ltd | Real estate | 2018 |
| Ghumman Properties One Ltd | Real estate | 2025 |
| Ghumman Properties Two Ltd | Real estate | 2026 |
| Giant 24 Ltd | Construction | 2024 |
| GIFT4U Forever Ltd | Wholesale & retail | 2025 |
| Gill Roofing Limited | Construction | 2013 |
| GILL66 Limited | Real estate | 2025 |
| Gillstar Ltd | Transport & logistics | 2022 |
| Gillz Construction & Design Ltd | Construction | 2025 |
| Gimat Coffee Solutions Ltd | Wholesale & retail | 2024 |
| Giuliano UK Transport Ltd | Transport & logistics | 2026 |
| Gjeka Construction Ltd | Construction | 2020 |
| GK Hire & Storage Limited | Wholesale & retail | 2011 |
| GK Vehicle Sales Ltd | Wholesale & retail | 2015 |
| GKR Constructions Ltd | Construction | 2025 |
| Glamour Sensation Catering & Event Limited | Hospitality | 2025 |
| Glazify Ltd | Construction | 2020 |
| Glen Elgin Property Management Company Ltd | Households | 2024 |
| Gllf Construction Ltd | Construction | 2025 |
| Global Bridges Group Ltd | Transport & logistics | 2019 |
| Global Business Hub Holding Ltd | Information & communication | 2024 |
| Global Cart Online Ltd | Wholesale & retail | 2025 |
| Global Connextion UK Limited | Transport & logistics | 2005 |
| Global Delivery Network Group T/A GDN Group Limited | Transport & logistics | 2021 |
| Global Exports and Imports Management Ltd | Transport & logistics | 2024 |
| Global Leadership, Management and Digital Technology College Ltd | Education | 2021 |
| Global Mindspace Consultancy Ltd | Administrative & support | 2024 |
| Global Revival Fire Ministry Ltd | Other services | 2024 |
| Global Sales Outsourcing Ltd | Administrative & support | 2010 |
| Global Shop Link Ltd | Wholesale & retail | 2025 |
| Global Softserve Technologies Ltd | Information & communication | 2025 |
| Global Sourcing Group PVT Ltd | Professional & scientific | 2022 |
| Global Sweets & Nuts Ltd | Wholesale & retail | 2019 |
| Global Trading Associates Ltd | Wholesale & retail | 2025 |
| GLOBALCONSULTS3000 Ltd | Professional & scientific | 2023 |
| Globally Controlled Systems Limited | Construction | 2020 |
| Globesoft Consulting Limited | Extraterritorial | 2012 |
| Glowup.Team Ltd | Other services | 2021 |
| GMT Building Services Ltd | Construction | 2004 |
| GNB Ltd | Construction | 2025 |
| Go Care Services Ltd | Health & social care | 2017 |
| Go-Mo Transport Ltd | Transport & logistics | 2026 |
| GO2WEST Ltd | Administrative & support | 2023 |
| Goan SC Ltd | Arts & recreation | 2024 |
| Goemcho Swad Ltd | Hospitality | 2021 |
| Goffin Limited | Wholesale & retail | 2018 |
| Goformed Limited | Administrative & support | 2025 |
| Gold Arrow Marketing Ltd | Professional & scientific | 2024 |
| Gold Hill & Co Ltd | Information & communication | 2024 |
| Goldanv Ltd | Construction | 2019 |
| Golden Empire Restaurant Limited | Hospitality | 2009 |
| Golden FRY London Ltd | Hospitality | 2021 |
| Golden Salad Ltd | Hospitality | 2025 |
| Golders Green Cars Ltd | Wholesale & retail | 2014 |
| Gomut Group Ltd | Transport & logistics | 2015 |
| Gomza Ltd | Hospitality | 2024 |
| Goncalves Properties Ltd | Real estate | 2025 |
| Gonda Bespoke Interiors Ltd | Construction | 2015 |
| Good Bites Limited | Hospitality | 2026 |
| Good Choice Joinery Ltd | Other services | 2019 |
| Good Luck Casas Limited | Real estate | 2022 |
| Good Mood Project Ltd | Wholesale & retail | 2025 |
| Goodcare Global Consulting Ltd | Professional & scientific | 2017 |
| Goodluck Care Holding Limited | Financial services | 2024 |
| Goodluck Care Limited | Information & communication | 2015 |
| Goodluck Property Management Limited | Households | 2024 |
| Goodness Swan Limited | Manufacturing | 2025 |
| Goods Junctions Ltd | Wholesale & retail | 2025 |
| Goport Ltd | Transport & logistics | 2026 |
| Gosel Roofing Limited | Construction | 2018 |
| Gosova Ltd | Professional & scientific | 2026 |
| Goten Ltd | Manufacturing | 2015 |
| Gotol Services Limited | Health & social care | 2013 |
| Gowda Properties Ltd | Real estate | 2025 |
| GR Maintenance Services Limited | Administrative & support | 2023 |
| Grace Cafe Ltd | Hospitality | 2024 |