| Gams Global Tech Ltd | Wholesale & retail | 2024 |
| Gamt Properties Ltd | Real estate | 2024 |
| Ganda Consulting Ltd | Professional & scientific | 2015 |
| Gandaduo (UK) Plant Nutrition Ltd | Extraterritorial | 2023 |
| Gandalfoimports Ltd | Wholesale & retail | 2024 |
| Gandhi-Dhebris Ltd | Health & social care | 2019 |
| Gane Datascan Limited | Wholesale & retail | 1998 |
| Ganes Holdings Ltd | Financial services | 2024 |
| Ganesh MCR Limited | Hospitality | 2018 |
| Gang YUE HUI Ltd | Wholesale & retail | 2026 |
| Ganga Solutions Ltd | Information & communication | 2025 |
| Gangnam Labs Ltd | Wholesale & retail | 2026 |
| Ganguly Solutions Limited | Health & social care | 2013 |
| Ganikay Care Ltd | Public administration | 2020 |
| Gannon Works Limited | Professional & scientific | 2025 |
| Gantra Ltd | Health & social care | 2025 |
| GANTZ00 Holding Limited | Financial services | 2025 |
| Gaohua CAI Ltd | Wholesale & retail | 2025 |
| Gaosheng Clothing Co., Ltd | Extraterritorial | 2023 |
| GAP Hub Ltd | Financial services | 2020 |
| GAP Insulation Services Ltd | Construction | 2023 |
| GAP Leasing Limited | Administrative & support | 2019 |
| GAP Protection Ltd | Administrative & support | 2025 |
| Gapc Ltd | Information & communication | 2024 |
| Gape Events Ltd | Wholesale & retail | 2014 |
| Gaphield Investment Services Limited | Hospitality | 2025 |
| Gapp Automation Ltd | Wholesale & retail | 2008 |
| Gapp’S and Grills Ltd | Hospitality | 2025 |
| Gara Energy Solutions Ltd | Manufacturing | 2023 |
| Gara Living Limited | Real estate | 2026 |
| Gara Ltd | Construction | 2024 |
| Garage Conversions Northwest Ltd | Manufacturing | 2019 |
| Garages Advertising UK Ltd | Professional & scientific | 2013 |
| Garana Sport to Organize Sporting Events Ltd | Wholesale & retail | 2025 |
| Garautos Ltd | Wholesale & retail | 2025 |
| Garbaccio and Co Ltd | Information & communication | 2023 |
| Garcha Bros Traders Limited | Real estate | 2021 |
| Garcias Gates & Railings Ltd | Manufacturing | 2017 |
| Gard Contracts Limited | Construction | 2013 |
| Garda World Ltd | Administrative & support | 2019 |
| Gardana Ltd | Information & communication | 2025 |
| Garden 55 Restaurant & Lounge Ltd | Hospitality | 2022 |
| Garden Care Manchester Ltd | Administrative & support | 2019 |
| Garden City Design & Build Limited | Financial services | 2017 |
| Garden City Trading Limited | Real estate | 2017 |
| Garden Heights Limited | Real estate | 2017 |
| Garden Minders Limited | Administrative & support | 2008 |
| Garden Ninja Limited | Other services | 2015 |
| Garden of Eden - Norden Limited | Wholesale & retail | 2014 |
| Garden of India (Frodsham) Ltd | Hospitality | 2024 |
| GARDEN360 Landscaping Ltd | Other services | 2021 |
| GARDEN360 Ltd | Other services | 2020 |
| Gardeners Arms (Grimshaw) Ltd | Hospitality | 2026 |
| Gardeners Bar Ltd | Hospitality | 2026 |
| Gardenia Homes Limited | Households | 2018 |
| Gardenia Tread International OPC Ltd | Wholesale & retail | 2025 |
| Gardening Projects & Services Ltd | Wholesale & retail | 2022 |
| Gardenpadz Limited | Construction | 2021 |
| Gardens Enterprises Limited | Education | 2013 |
| Gardinia Window Systems (U.K.) Limited | | 1980 |
| Gardner Finance Limited | Financial services | 1999 |
| Gardner Legal Consultancy Limited | Other services | 2022 |
| Gardner Property Holdings Ltd | Real estate | 2021 |
| Gare DU Nord Limited | Real estate | 2023 |
| Gareth Cadwallader Ltd | Financial services | 2018 |
| Gareth Smith Ltd | Arts & recreation | 2024 |
| Gareth Thomas Consulting Limited | Health & social care | 2016 |
| Gariba Studios Ltd | Information & communication | 2025 |
| Gariff Joinery Limited | Manufacturing | 2006 |
| Gariff Solid Surfaces Limited | Construction | 2017 |
| Garlen Properties LLP | | 2021 |
| Garlic Taste Ltd | Hospitality | 2026 |
| Garlin Holdings Ltd | Professional & scientific | 2016 |
| Garlo GT Limited | Wholesale & retail | 2026 |
| Garm Bidco Ltd | Administrative & support | 2023 |
| Garm Gurus Ltd | Wholesale & retail | 2025 |
| Garm Midco 1 Ltd | Administrative & support | 2023 |
| Garm Midco 2 Ltd | Administrative & support | 2023 |
| Garm Topco Ltd | Administrative & support | 2023 |
| Garm Trading Limited | Wholesale & retail | 2018 |
| Garmac Surfacing Contractors Ltd | Construction | 2024 |
| Garment Vault Ltd | Wholesale & retail | 2026 |
| Garment Wonder Limited | Wholesale & retail | 2025 |
| Garments Direct Limited | Manufacturing | 1989 |
| Garments World Ltd | Wholesale & retail | 2020 |
| Garmentsplace Limited | Wholesale & retail | 2022 |
| Garmzhub Limited | Wholesale & retail | 2025 |
| Garner Neurodiagnostics Ltd | Health & social care | 2025 |
| Garnetgb Limited | Transport & logistics | 2026 |
| Garnetshaw Ltd | Real estate | 2021 |
| Garnettt Ltd | Wholesale & retail | 2023 |
| Garo Services Limited | Health & social care | 2024 |
| Garopa Ltd | Manufacturing | 2025 |
| Garpan Ltd | Hospitality | 2023 |
| Garpez Property Management Group Ltd | Real estate | 2023 |
| Garrett Lane Management Company Limited | Real estate | 2016 |
| Garrett Property Investments Ltd | Real estate | 2025 |
| Garrick Southport Limited | Real estate | 2021 |
| Garridge Creative Services Limited | Professional & scientific | 2005 |
| Garrison Footwear Limited | Wholesale & retail | 2007 |