| Golf-Ed Limited | Education | 2017 |
| Golfdawn Limited | Extraterritorial | 2009 |
| Golfers Wellness Ltd Ltd | Wholesale & retail | 2024 |
| Gonzo Distribution Ltd | Information & communication | 2009 |
| Goodfellows Solicitors Limited | Professional & scientific | 2012 |
| Goodreturn Limited | Construction | 1996 |
| Goodreturn Properties Ltd | Construction | 2020 |
| Goodstuff U.K. Limited | Information & communication | 2001 |
| Gopi Investments Limited | Financial services | 2024 |
| Gordon Craig Associates Ltd | Professional & scientific | 2018 |
| Gordon Property Maintenance Services Ltd | Administrative & support | 2024 |
| Goss Brothers Limited | Wholesale & retail | 2025 |
| Gozwick Ltd | Manufacturing | 2012 |
| GP Motor Repairs Ltd | Wholesale & retail | 2025 |
| GPA Consultancy Limited | Information & communication | 2007 |
| GR Gas&Heating Limited | Construction | 2021 |
| Grace & Thorn Limited | Wholesale & retail | 2012 |
| Grace & Thorn Property Limited | Real estate | 2017 |
| Grace and Motion Studio Ltd | Other services | 2025 |
| Grace and Truth Outreach Ministry | Other services | 2026 |
| Grace Racing Ltd | Professional & scientific | 2022 |
| Graft Epsom Ltd | Arts & recreation | 2025 |
| Grand Systems Limited | Professional & scientific | 2003 |
| Grandev Ltd | Extraterritorial | 2021 |
| Grange Mansions Residents Association (1 - 24) Limited | Households | 1995 |
| Grange Park (Bermondsey) Management Company Limited | Households | 1994 |
| Grange Place (Walton on Thames) Management Company Limited | Households | 2001 |
| Grant Beale Consultants Limited | Professional & scientific | 2017 |
| Grantchester Place Management Company Ltd | Households | 2023 |
| Grantley Paton Limited | Construction | 2023 |
| Grantley Property Investments Limited | Real estate | 2009 |
| Grapefruit Talent Solutions Ltd | Professional & scientific | 2024 |
| Grass Capital Investments Limited | Real estate | 2023 |
| Grave Care International Limited | Administrative & support | 2015 |
| Gray Commercial Services Limited | Professional & scientific | 2022 |
| Grays Inn Management Limited | Households | 2020 |
| Grayshott Management Company Limited | Households | 1991 |
| Graytree Consulting Limited | Professional & scientific | 2024 |
| Grazioli-Venier Coaching Limited | Professional & scientific | 2015 |
| Great Acorn Ltd | Professional & scientific | 2016 |
| Great British Botanics Ltd | Professional & scientific | 2022 |
| Great Leaps Forward Ltd | Professional & scientific | 2023 |
| Great Quality Limited | Construction | 2015 |
| Greatseller Ltd | Wholesale & retail | 2024 |
| Greek on the Grill Limited | Wholesale & retail | 2019 |
| Green & Taylor Ltd | Real estate | 2021 |
| Green (Ewell) Limited(The) | Households | 1934 |
| Green Crusader | Other services | 2024 |
| Green Diamond International Ltd | Agriculture & fishing | 2020 |
| Green Gables Epsom Limited | Construction | 2025 |
| Green Jacket Properties Limited | Real estate | 2021 |
| Green Light Systems Ltd | Information & communication | 2024 |
| Green Motion Car Hire Limited | Extraterritorial | 2018 |
| Green Motion International Limited | Administrative & support | 2008 |
| Green Motion Leasing Limited | Extraterritorial | 2006 |
| Green Motion USA Limited | Extraterritorial | 2008 |
| Green Motion Vehicle Limited | Administrative & support | 2018 |
| Green Motion Vehicle Rental Limited | Professional & scientific | 2007 |
| Green Origin Property Limited | Real estate | 2019 |
| Green Vehicle Hire Limited | Administrative & support | 2018 |
| Greenacres Management Company (Ewell) Limited | Households | 1997 |
| Greenaway Construction Services Ltd | Construction | 2023 |
| Greencroft (Eastbourne) Limited | Households | 1987 |
| Greenfield Estate Agents (Ewell) Ltd | Real estate | 2025 |
| Greenflow Electrical and Air-Conditioning Services Ltd | Construction | 2025 |
| Greenland Property Management Limited | Households | 1981 |
| Greens Health and Fitness Limited | Arts & recreation | 2007 |
| Greenscape Gardens Ltd | Administrative & support | 2010 |
| Greenside Enterprises Limited | Professional & scientific | 2013 |
| Greenstone Property Maintenance Ltd | Construction | 2018 |
| Greenvolt | Other services | 2019 |
| Greenway Residents' Management Company Limited | Households | 1991 |
| Greenwood Hill Limited | Professional & scientific | 2021 |
| Greifensolar KST Limited | Professional & scientific | 2020 |
| Greifensolar PHG Limited | Professional & scientific | 2020 |
| Grenville Place (Ashtead) Management Company Limited | Households | 2001 |
| Gresham Investment (Estates) Limited | Construction | 1998 |
| Gresham Taylor Consultants Limited | Professional & scientific | 2020 |
| Grey Matter Global Ltd. | Professional & scientific | 2011 |
| Greyscope Limited | Professional & scientific | 2019 |
| Grid Interfaces Solution Ltd | Professional & scientific | 2026 |
| Griffin Way Management Limited | Households | 1977 |
| Grip X Performance Ltd | Wholesale & retail | 2022 |
| Grobler GAS and Heating Ltd | Construction | 2024 |
| Grosvenor Consultancy UK Limited | Administrative & support | 2005 |
| Grosvenor Hill Management Company Limited | Households | 1988 |
| Grosvenor House Residential Family Centre Limited | Health & social care | 2015 |
| Ground Floor Studios Limited | Professional & scientific | 2018 |
| Grounded Electrical Services Ltd | Construction | 2014 |
| Grounded Hospitality Limited | Hospitality | 2018 |
| Grove House Epsom (Management) Limited | Households | 1988 |
| Growing Against Violence | Education | 2014 |
| GRS Management Ltd | Professional & scientific | 2012 |
| Grsp Services Limited | Administrative & support | 2007 |
| Grub and Gumption Limited | Hospitality | 2017 |
| GS Retail Solutions Ltd | Construction | 2023 |
| GSI (London) Limited | Administrative & support | 2006 |
| GSXRK6 Ltd | Other services | 2018 |
| Guenyzar Ltd | Health & social care | 2019 |
| Guild Restoration Limited | Construction | 2009 |