| Global VIO Limited | Information & communication | 2024 |
| Global Warming Limited | Construction | 2017 |
| Globaldoc (UK) Limited | Professional & scientific | 2009 |
| Globatron Limited | Information & communication | 2013 |
| Glover Investments Limited | Real estate | 2018 |
| GN Surrey Properties Limited | Real estate | 2023 |
| Gngb Partners LLP | | 2017 |
| Gngby Limited | Construction | 2016 |
| Goaudiovisual Limited | Administrative & support | 1996 |
| Gobeauty Systems Ltd | Wholesale & retail | 2019 |
| Godolphin Homes Limited | Construction | 1997 |
| Gohigher Consulting Ltd | Information & communication | 2022 |
| Gojo Holdings Limited | Wholesale & retail | 2020 |
| GOK Investment Ltd | Hospitality | 2019 |
| Golden Home Care Limited | Health & social care | 2015 |
| Golden Home Care Solutions Limited | Administrative & support | 2016 |
| Golden Home Care Staffing Limited | Administrative & support | 2012 |
| Goldsmiths Corporation Limited | Professional & scientific | 2023 |
| Golf Tourism England Limited | Administrative & support | 2013 |
| Golf Tours London Ltd | Administrative & support | 2025 |
| Golfing Technology Ltd | Information & communication | 2025 |
| GOLOC8 Ltd | Extraterritorial | 2025 |
| Gomma's Haircare Limited | Other services | 2006 |
| Gommersley Limited | Real estate | 2020 |
| Good Markets Management Ltd | Financial services | 2024 |
| Googly Esports Ltd | Arts & recreation | 2019 |
| Gorse Lane Properties (Farnham) Limited | Administrative & support | 2010 |
| Gorse Lane Properties Limited | Professional & scientific | 1995 |
| Gosu Sports Media Limited | Professional & scientific | 2024 |
| Gotgotneed Limited | Information & communication | 2005 |
| Gower Lodge (Weybridge) Residents Association Limited | Real estate | 1968 |
| GP Procon Ltd | Information & communication | 2015 |
| GPA Africa Ltd | Professional & scientific | 2021 |
| GPM Creative Ltd | Professional & scientific | 2023 |
| GQ Plumbing and Heating Limited | Construction | 2022 |
| Grace Care Service Limited | Hospitality | 2013 |
| Gracebloom Ltd | Households | 2025 |
| Graham Juett Limited | Construction | 2007 |
| Grahame Ridley Limited | Professional & scientific | 2014 |
| Grain Carpentry Solutions Limited | Construction | 1998 |
| Graman Property Developments Limited | Construction | 1983 |
| Grand Design Homes Limited | Real estate | 2004 |
| Grange Barn Residential Ltd | Real estate | 2008 |
| Grange Capital Limited | Administrative & support | 2014 |
| Grange Gardens Nominees Limited | Professional & scientific | 2014 |
| Granite Peak Web Design Ltd | Professional & scientific | 2025 |
| Grant Wright Ltd | Information & communication | 2025 |
| Grants Homes Limited | Real estate | 2024 |
| Graphica Display Limited | Manufacturing | 2011 |
| Grasmere Residents Management Company Limited | Professional & scientific | 1984 |
| Grasshopper Surveying Services Limited | Administrative & support | 2017 |
| Grays Executive Cleaning Limited | Administrative & support | 2019 |
| Grays Grooming for MEN Limited | Other services | 2025 |
| Grayscale Group Ltd | Construction | 2025 |
| Grayshott Projects Limited | Real estate | 2021 |
| Great Tusker Maritime Services Limited | Professional & scientific | 2019 |
| Great Water Limited | Water & waste | 2009 |
| Greaves Group Ltd | Real estate | 2022 |
| Green and Blue Holdings Limited | Transport & logistics | 2020 |
| Green and Farmer Holdings Limited | Wholesale & retail | 2015 |
| Green and Farmer Properties Limited | Real estate | 2015 |
| Green Circle IT Ltd | Wholesale & retail | 2022 |
| Green Flame Fire Sprinkler & Electrical Ltd | Construction | 2017 |
| Green Goat Video Limited | Information & communication | 2025 |
| Green Lane Chertsey (Developments) Limited | Construction | 2016 |
| Green Magpie Edit Ltd | Wholesale & retail | 2020 |
| Green Seal Promotions Limited | Administrative & support | 1998 |
| Green Shoots Consulting Limited | Professional & scientific | 2005 |
| Green Utilities Limited | Energy | 2021 |
| Greenfield Holdings (IOW) Limited | Construction | 2011 |
| Greenliant UK Ltd | Other services | 2010 |
| Greenlight Credit Ltd | Financial services | 2011 |
| Greenlights Consulting Ltd | Hospitality | 2021 |
| Greenwich Consulting Limited | Information & communication | 2024 |
| Grey Interiors Limited | Professional & scientific | 2006 |
| Greythorn Delivery Solutions Ltd | Transport & logistics | 2019 |
| Greythorn Enterprises Ltd | Administrative & support | 2019 |
| Greythorn Logistics Ltd | Administrative & support | 2020 |
| Greythorn Services Ltd | Administrative & support | 2017 |
| Greythorn Vehicle Hire Ltd | Administrative & support | 2020 |
| Grip Solutions Ltd | Information & communication | 2016 |
| Grosvenor Plastering Services Limited | Construction | 2005 |
| Grove Classics Limited | Wholesale & retail | 2021 |
| Grove Development Consultants Limited | Professional & scientific | 2026 |
| Grove Joinery Ltd. | Construction | 2012 |
| Grover Asset Management Ltd | Extraterritorial | 2012 |
| Groves Services Limited | Professional & scientific | 2021 |
| Grow Holdings Limited | Information & communication | 2016 |
| Grow Into Life Ltd | Education | 2021 |
| Growpad Limited | Information & communication | 2022 |
| Grumpy COW Limited | Administrative & support | 2019 |
| Gsil Management Limited | Real estate | 2023 |
| Gstv Consulting Ltd | Administrative & support | 2023 |
| Guaranteed Pest Control Limited | Professional & scientific | 2019 |
| Guess What Limited | Professional & scientific | 2002 |
| Guild Music Limited | Information & communication | 2017 |
| Guild Records Limited | Information & communication | 2018 |
| Guillaumes LLP | | 2011 |
| Gurkha Nepalese Catering Ltd | Hospitality | 2026 |
| Gurkha Nepalese Restaurant Limited | Hospitality | 2024 |