| Green Monkey Property Limited | Real estate | 2026 |
| Green Oak Associates Ltd | Professional & scientific | 2006 |
| Green Path Energy Solutions Ltd | Other services | 2025 |
| Green Shipping Solutions Ltd | Professional & scientific | 2021 |
| Green Tree Food Ltd | Wholesale & retail | 2022 |
| Green View Real Estate Ltd | Real estate | 2023 |
| GREENACRE2019 LLP | | 2019 |
| Greenacres Property Group Limited | Real estate | 2024 |
| Greenaxis Accounting and Advisory Ltd | Professional & scientific | 2025 |
| Greencrib Ltd | Real estate | 2025 |
| Greener Solar Ltd | Construction | 2024 |
| Greengage LLP | | 2021 |
| Greenhead 321 Ltd | Health & social care | 2013 |
| Greenhead Cars Limited | Transport & logistics | 2022 |
| Greenhead Central Limited | Real estate | 2023 |
| Greenhead Consulting Ltd | Professional & scientific | 2018 |
| Greenhead Dental Practice Ltd | Health & social care | 2008 |
| Greenhead Fisheries Ltd | Hospitality | 2023 |
| Greenhead Motors Ltd | Wholesale & retail | 2026 |
| Greenhead Pizzas Ltd | Hospitality | 2026 |
| Greenhead Stop and Shop Ltd | Wholesale & retail | 2025 |
| Greenhead Taxis Ltd | Transport & logistics | 2024 |
| Greenlandcart Ltd | Wholesale & retail | 2025 |
| Greenline BUS Company Ltd | Transport & logistics | 2013 |
| Greenmark Ltd | Administrative & support | 2017 |
| Greenmoor Properties Ltd | Real estate | 2018 |
| Greens Catering Equipment Limited | Wholesale & retail | 2017 |
| Greens Commercial Kitchens Limited | Manufacturing | 2015 |
| Greens Group Limited | Professional & scientific | 2004 |
| Greens Group Management Limited | Real estate | 2024 |
| Greens Mechanical Services Ltd | Construction | 2015 |
| Greens Properties Limited | Construction | 2024 |
| Greenshoots Leisure Limited | Wholesale & retail | 2016 |
| Greensmith Property Limited | Real estate | 2022 |
| Greenstone Design Limited | Other services | 2006 |
| Greenwood PCN Limited | Health & social care | 2021 |
| Greenwood Road Limited | Construction | 2025 |
| Greenwoods Steel Services Limited | Manufacturing | 2023 |
| Greenwoods Victoria Garage Ltd | Wholesale & retail | 2011 |
| Greetland Convenience Limited | Real estate | 2010 |
| Greetland Developments (Farsley) Limited | Real estate | 2018 |
| Greetland Developments Limited | Real estate | 1985 |
| Grenada Estates Limited | Real estate | 2026 |
| Grenn Kurp Electrics Ltd | Construction | 2023 |
| Grenoble Land Limited | Administrative & support | 2011 |
| Grete Henriette Ltd | Manufacturing | 2024 |
| Grey Arrow Limited | Financial services | 2008 |
| Grey Stag Developments Limited | Construction | 2020 |
| Greydene Ltd | Real estate | 2023 |
| Greys Joinery Limited | Construction | 2016 |
| Greystone Sales & Lettings Ltd | Real estate | 2023 |
| GRG Public Resources Limited | Administrative & support | 1994 |
| Grico Limited | Transport & logistics | 2025 |
| Grief and Loss Community Group CIC | Information & communication | 2026 |
| Griffin Antiques Limited | Wholesale & retail | 2021 |
| Griffin Housing Ltd | Real estate | 2019 |
| Griffin Joinery Limited | Construction | 2012 |
| Grill Mill Ltd | Hospitality | 2021 |
| Grimblethorpe Hall Butchery Limited | Manufacturing | 2013 |
| Grimblethorpe Hall Country Cottages Ltd | Hospitality | 2016 |
| Gringo's Restaurants Limited | Hospitality | 2001 |
| Grinsdale Mechanical Design Ltd. | Professional & scientific | 2024 |
| Grip Tech Limited | Professional & scientific | 2004 |
| Grit Military Gym Ltd | Extraterritorial | 2022 |
| GRL Drainage Engineering Ltd | Professional & scientific | 2024 |
| GRM Consultants Limited | Education | 2008 |
| Gromlinks Ltd | Arts & recreation | 2026 |
| Grosvenor Weaving Company Limited | Manufacturing | 2007 |
| Ground Control BJJ Ltd | Arts & recreation | 2023 |
| Ground UP Jiujitsu Ltd | Arts & recreation | 2025 |
| Groundlab Innovation Ltd | Construction | 2026 |
| Groundworks & Maintenance Ltd | Construction | 2025 |
| Groupbeck Enterprises Limited | Manufacturing | 1989 |
| Groupty Ltd | Real estate | 2023 |
| Grove Shines Sales Ltd | Wholesale & retail | 2025 |
| Groves & Lindley Limited | Professional & scientific | 1956 |
| Grow to School CIC | Education | 2013 |
| Growing Works | Health & social care | 2011 |
| GSB Electrical Ltd | Construction | 2019 |
| GSC Plasterers Ltd | Construction | 2022 |
| Gscl Properties Ltd | Financial services | 2025 |
| Gseir Holdings Ltd | Wholesale & retail | 2022 |
| GSK71 Solutions Ltd | Administrative & support | 2021 |
| GSL Electrical Services Limited | Construction | 2010 |
| GSM Management Company Limited | Real estate | 2004 |
| Gspl Ltd | Administrative & support | 2025 |
| GSR IT Solutions Ltd | Other services | 2019 |
| GT Consultancy & Coaching Services Ltd | Professional & scientific | 2022 |
| GT Roof Testing Ltd | Construction | 2018 |
| GTM Valve Design Limited | Professional & scientific | 2018 |
| Guardian Heart Ltd | Information & communication | 2025 |
| Guardtint Limited | Administrative & support | 2025 |
| Guest Bathroom Supply Co. Ltd | Wholesale & retail | 2023 |
| Guest Bathrooms Co Ltd | Construction | 2022 |
| Guild Jewellers LLP | | 2016 |
| Guitarwave Ltd | Wholesale & retail | 2026 |
| GUJ Karnana Bites Ltd | Hospitality | 2025 |
| Gulp Creations Limited | Manufacturing | 2025 |
| Gulruk PTY Ltd | Health & social care | 2007 |
| Gulshan Foods Limited | Hospitality | 2020 |