| GPC Project 6 Ltd | Energy | 2023 |
| GPC Project 7 Ltd | Energy | 2023 |
| GPC Project 8 Ltd | Energy | 2023 |
| GPC Project 9 Ltd | Energy | 2023 |
| GPC SPV 1 Ltd | Energy | 2023 |
| GPC SPV 2 Ltd | Energy | 2023 |
| GPC SPV 4 Ltd | Energy | 2023 |
| Gpcare Group Community Interest Company | Hospitality | 2022 |
| Gpcw Engineering Limited | Professional & scientific | 2022 |
| GPH Consulting Limited | Professional & scientific | 2022 |
| Gpmc Consulting UK Limited | Wholesale & retail | 2014 |
| GR Football Consulting Ltd | Information & communication | 2024 |
| GR IT Contracting Limited | Information & communication | 2022 |
| Grace & Partners Ltd | Other services | 2022 |
| Grace and Peach Limited | Real estate | 2023 |
| Grace Property Investment Ltd | Real estate | 2019 |
| Gracie Hannah Limited | Arts & recreation | 2018 |
| Gradient Business Services Limited | Professional & scientific | 1997 |
| Gradus Group Holdings Limited | Professional & scientific | 2006 |
| Gradus Limited | Manufacturing | 1987 |
| Graeme Armitage Limited | Professional & scientific | 2010 |
| Grafika Limited | Professional & scientific | 1999 |
| Grafmarine Limited | Manufacturing | 2015 |
| Grafmed Limited | Manufacturing | 2017 |
| Graft Hospitality Recruitment Ltd | Administrative & support | 2025 |
| Grafton LLP | | 2008 |
| Grand Bahama Group Limited | Professional & scientific | 2019 |
| Grand Tours UK Ltd | Administrative & support | 2025 |
| Grandas Associates Ltd | Health & social care | 2015 |
| Grandbox Services Limited | Construction | 1988 |
| Grandiflora Co Ltd | Professional & scientific | 2024 |
| Grange (Didsbury) Maintenance Company Limited(The) | Households | 1982 |
| Grange Development Consulting Ltd | Construction | 2024 |
| Grange Park Systems Limited | Administrative & support | 2015 |
| Grange Valley Consulting Limited | Administrative & support | 2014 |
| Grangela Limited | Financial services | 2026 |
| Grangemoor Furniture 2000 Limited | Manufacturing | 1998 |
| Grangemoor Interiors Ltd | Manufacturing | 2023 |
| Granger Highgate Ltd | Professional & scientific | 2017 |
| Grangethorpe Properties Limited | Construction | 1988 |
| Grape Consultancy Ltd | Professional & scientific | 2025 |
| Graphite Management Company Limited | Real estate | 2004 |
| Grasp Technologies Limited | Information & communication | 2022 |
| Grassby General Partner LLP | | 2026 |
| Grassby LP1 Limited | Professional & scientific | 2024 |
| Gravitas (International) Limited | Wholesale & retail | 2011 |
| Gravitas Contracting Limited | Construction | 2023 |
| Gravity for Import & Export Ltd | Wholesale & retail | 2023 |
| Gravity Motor Group Limited | Administrative & support | 2016 |
| Gray's Law Associated Limited | Professional & scientific | 2018 |
| Gray-Nichols Ltd | Administrative & support | 2018 |
| Grayshot Construction U.K. Limited | Hospitality | 1993 |
| Grayson Consultancy Ltd | Professional & scientific | 2020 |
| Graystone Holdings Limited | Financial services | 2020 |
| Graystone Technologies Limited | Information & communication | 2020 |
| Grazzi Limited | Real estate | 2022 |
| Grazzio Limited | Administrative & support | 2023 |
| GRC Global Ltd | Wholesale & retail | 2012 |
| Great Heys Management Company Limited | Real estate | 2021 |
| Great Ideas Fabulous Things Ltd | Wholesale & retail | 2019 |
| Great John Street Hotel Limited | Hospitality | 2012 |
| Great Point Partners UK, Ltd. | Professional & scientific | 2022 |
| Greatdays Holiday Services Limited | Administrative & support | 1985 |
| Greatdays Holidays Limited | Administrative & support | 1985 |
| Greater Manchester Malayalee Hindu Community (Gmmhc) | Other services | 2020 |
| Greatwhites Global Ltd | Wholesale & retail | 2015 |
| Green and Grounded Ltd | Wholesale & retail | 2020 |
| Green Apleducation Limited | Administrative & support | 2008 |
| Green Atoms Limited | Administrative & support | 2011 |
| Green Case Events Ltd | Wholesale & retail | 2019 |
| Green Developments Northwest Ltd | Real estate | 2020 |
| Green Ecologic Meet Limited | Information & communication | 2021 |
| Green EM Limited | Administrative & support | 2025 |
| Green Genius Ltd | Wholesale & retail | 2023 |
| Green Harp Ltd | Other services | 2020 |
| Green Kangaroo Limited | Information & communication | 2023 |
| Green Loft Floor Systems Ltd | Professional & scientific | 2026 |
| Green Vision Africa Management Ltd | Financial services | 2020 |
| Green Walk Standish Estate Management Company Limited | Households | 2021 |
| Green Walk Standish Leasehold Management Company Limited | Households | 2021 |
| Green Walk Standish Management Company Limited | Households | 2021 |
| Greener Projects Limited | Extraterritorial | 2019 |
| Greenfire Limited | Professional & scientific | 2020 |
| Greenhill Creative Ltd | Professional & scientific | 2017 |
| Greenico Ltd | Administrative & support | 2023 |
| Greenlands Management Company Limited | Real estate | 2014 |
| Greenleaf Advisory Limited | Professional & scientific | 2021 |
| Greenoak Innovation Ltd | Professional & scientific | 2019 |
| Greenoaks and Southside Management Company Limited(The) | Households | 1980 |
| Greens of Hale Limited | Financial services | 1962 |
| Greenspace Environmental Limited | Professional & scientific | 2008 |
| Greenspace Estates Limited | Real estate | 2018 |
| Greenstone Holdings Limited | Financial services | 2025 |
| Greenstone Technologies Limited | Information & communication | 2025 |
| Greenthorns Property Ltd | Real estate | 2017 |
| Greenway Digital Limited | Wholesale & retail | 2025 |
| Greenwood Properties (Lymm) Ltd | Real estate | 2026 |
| Greenwood Risk Services Limited | Professional & scientific | 2020 |
| Gregory Place Limited | Households | 2016 |
| Gresham Wealth Management (FS) Limited | Professional & scientific | 2014 |