| Green Villagers Limited | Information & communication | 2023 |
| Green Zone Tyres Ltd | Wholesale & retail | 2023 |
| Greenco Block Management Limited | Real estate | 2022 |
| Greenco Group Ltd | Households | 2016 |
| Greenco Liverpool Ltd | Real estate | 2017 |
| Greenegy Ltd | Professional & scientific | 2024 |
| Greenfeld Estates Ltd | Real estate | 2024 |
| Greenfield Cattle Farm Ltd | Agriculture & fishing | 2025 |
| Greenfields MP Ltd | Other services | 2018 |
| Greenflag Care Limited | Health & social care | 2025 |
| Greengate Productions Ltd | Information & communication | 2025 |
| Greengates Builders Merchants Ltd | Wholesale & retail | 2001 |
| Greenglobal Ltd | Extraterritorial | 2008 |
| Greenholme House Ltd | Real estate | 2024 |
| Greenholme Mills Estate Management Limited | Real estate | 2022 |
| Greenholme Mills Ltd | Construction | 2018 |
| Greenline Estates Limited | Real estate | 2012 |
| Greenline Foundation Limited | Health & social care | 2010 |
| Greenline Holdings Ltd | Real estate | 2025 |
| Greenline Housing Limited | Real estate | 2013 |
| Greenline Properties Limited | Real estate | 2000 |
| Greenline Ventures Limited | Real estate | 2015 |
| Greenor Estates Ltd | Real estate | 2025 |
| Greenpark Books Ltd | Professional & scientific | 2020 |
| Greenrancho Ltd | Manufacturing | 2019 |
| Greenroche Limited | Extraterritorial | 1998 |
| Greental Berlinsky Ltd | Real estate | 2025 |
| Greental Investments 2 Limited | Real estate | 2021 |
| Greental Investments Limited | Real estate | 2021 |
| Greental Ruben Ltd | Real estate | 2026 |
| Greenwoods Associates Ltd | Information & communication | 2012 |
| Greer Communications Ltd | Professional & scientific | 2025 |
| Gregory Mcavoy Homes Ltd | Real estate | 2024 |
| Grenergy Ltd | Construction | 2022 |
| Gresham Estates 2 Limited | Real estate | 2025 |
| Grey Star Design Limited | Information & communication | 2015 |
| Grey Stripes Ltd | Wholesale & retail | 2024 |
| Greyhole Ltd | Professional & scientific | 1997 |
| Greystone Telecom Limited | Information & communication | 2000 |
| Greystones (11) Limited | Financial services | 2026 |
| GRG Storage Limited | Transport & logistics | 2006 |
| Griffin Court Management (Salford) Limited | Extraterritorial | 1994 |
| Griffin Medical Communications Ltd | Information & communication | 2019 |
| Grindberry Ltd | Extraterritorial | 2013 |
| Grip 77 Ltd | Professional & scientific | 2023 |
| Grizzly Bear Design Ltd | Information & communication | 2015 |
| Grjh Services Limited | Health & social care | 2025 |
| Grogold Estates Ltd | Real estate | 2022 |
| Groin Limited | Wholesale & retail | 2021 |
| Grolife Ltd | Financial services | 2020 |
| Groovanometry Ltd | Administrative & support | 2020 |
| Groovy Properties Ltd | Real estate | 2019 |
| Grosvenor OIL Services Ltd. | Wholesale & retail | 1994 |
| Grosvenor Power Group Holdings Limited | Financial services | 2021 |
| Grosvenor Power Services Limited | Manufacturing | 1981 |
| Grosvenor Road (Southfields) Management Company Limited | Households | 2025 |
| Grosvenor Transformer Services Limited | Extraterritorial | 1985 |
| Ground Nominees Limited | Extraterritorial | 2006 |
| Ground Rent Invest Manchester Limited | Construction | 2016 |
| Ground-Gas Solutions Limited | Administrative & support | 2009 |
| Groundcare Contractors Limited | Administrative & support | 2010 |
| Grounded Films Ltd | Transport & logistics | 2025 |
| Group 3 Holding Limited | Extraterritorial | 2013 |
| Group 88 Ltd | Wholesale & retail | 2025 |
| Groveglade Ltd | Extraterritorial | 2014 |
| Grovestar Solutions Limited | Construction | 2017 |
| Groveway Properties Ltd | Real estate | 1998 |
| Grovewhite II Limited | Real estate | 2018 |
| Grovewhite Ltd | Other services | 2013 |
| Grow Pharma INT Ltd | Manufacturing | 2025 |
| Growing Business Limited | Other services | 2019 |
| Growing Togetherness CIC | Health & social care | 2021 |
| GRP Future Ltd | Construction | 2021 |
| Grungevia Ltd | Wholesale & retail | 2021 |
| Grunnfeld Estates Ltd | Real estate | 2023 |
| Grupo JM 10 Sport Limited | Arts & recreation | 2014 |
| GSF World Services Ltd | Transport & logistics | 2026 |
| GSP International Logistics Ltd | Transport & logistics | 2025 |
| GT Yoga Limited | Education | 2026 |
| GTC Management (UK) Limited | Professional & scientific | 2002 |
| Gttd Properties Limited | Real estate | 2024 |
| Guardians of Life Ltd | Health & social care | 2024 |
| Gubil Solutions Ltd | Real estate | 2023 |
| Guidelist Limited | Construction | 1992 |
| Guild Ball Ltd | Financial services | 2014 |
| Guilla Rose Ltd | Manufacturing | 2023 |
| GUL Ltd | Hospitality | 2021 |
| Gulf Marine Subsea Services Limited | Mining & quarrying | 2025 |
| Gurleen&Mehar Holdings Limited | Real estate | 2025 |
| Guvu Health and Wellbeing CIC | Education | 2023 |
| Guzimila Ltd | Health & social care | 2014 |
| GV Wholesale Ltd | Other services | 2025 |
| GWG Estates Ltd | Real estate | 2013 |
| Gyftedhands Production Ltd | Information & communication | 2025 |
| Gyrotex Limited | Real estate | 2014 |
| H & JK Investments Ltd | Real estate | 2018 |
| H & L Reports Limited | Health & social care | 2003 |
| H & S Schwimmer Properties Limited | Real estate | 2017 |
| H (Coventry) Limited | Extraterritorial | 2012 |
| H Amin Foods Limited | Hospitality | 2025 |