| G H Contractors Ltd | Construction | 2016 |
| G&B Properties Ltd | Real estate | 2020 |
| G.D. Hothi & Sons Limited | Real estate | 1998 |
| G3G (UK) Limited | Professional & scientific | 1999 |
| Ganchev 17 Ltd | Administrative & support | 2016 |
| Garcia Holdings Ltd | Real estate | 2021 |
| Garden Court (Hampton) Residents Association Limited | Real estate | 1966 |
| Garrick Media Limited | Professional & scientific | 2013 |
| Gary J Birmingham Ltd | Transport & logistics | 2007 |
| Gatton Investment Limited | Financial services | 2011 |
| GCC Trading Limited | Other services | 1994 |
| GCH Corporation Limited | Financial services | 2010 |
| GCH Systems & Technology Limited | Information & communication | 2026 |
| GDH Creative Limited | Professional & scientific | 2020 |
| GEARUP2SUCCESS Ltd | Information & communication | 2023 |
| Gelling Landscape Studio Ltd | Professional & scientific | 2020 |
| Gemben Ltd | Other services | 2014 |
| Gemini Abode Limited | Real estate | 2020 |
| Gemma Mcdonald Ltd | Other services | 2011 |
| Gemoj Ltd | Real estate | 2016 |
| Generation D Limited | Information & communication | 2012 |
| Genesis Capital (Finance & Leasing) Limited | Financial services | 2009 |
| Genesis Capital Group Limited | Financial services | 2000 |
| Genesis Capital Leasing Limited | Financial services | 2000 |
| Genesis Health Coaching Limited | Health & social care | 2020 |
| Genesis Invoice Finance Limited | Financial services | 2005 |
| Genesis Vehicle Finance Limited | Financial services | 2002 |
| Genji Limited | Hospitality | 1990 |
| Gensight Limited | Information & communication | 1994 |
| Geoffrey Bishop Limited | Real estate | 1957 |
| Georgina Court Freehold Ltd | Households | 2010 |
| Gg's Coffee House Ltd | Manufacturing | 2025 |
| Giants Plumbing & Heating Ltd | Construction | 2024 |
| Gibson Builders Limited | Construction | 2008 |
| Giggs Hill Gardens Residents Association Limited(The) | Households | 1953 |
| Gildingjolley Ltd | Information & communication | 2024 |
| Gilesy Transport Limited | Transport & logistics | 2019 |
| GIM Advisory Ltd | Professional & scientific | 2025 |
| Giwi Properties Ltd | Real estate | 2017 |
| GJB Lettings Ltd | Real estate | 2023 |
| GJR Property Investments Ltd | Real estate | 2017 |
| GKK Investments Ltd | Real estate | 2018 |
| Gleam Consulting Limited | Professional & scientific | 2020 |
| Glentworth Homes Limited | Construction | 2026 |
| Global Solar Development Ltd | Extraterritorial | 2019 |
| Glorytest Ltd | Construction | 2019 |
| Gmgc Limited | Extraterritorial | 1972 |
| Go Enterprise Hub Ltd | Transport & logistics | 2026 |
| Going to the Dogs Limited | Other services | 2010 |
| Golden QI Properties Ltd | Real estate | 2019 |
| Golden Shovel Ltd | Real estate | 2016 |
| Golden Valley UK Ltd | Wholesale & retail | 2011 |
| Golf Swing Solutions Limited | Construction | 2021 |
| Golfside Residents Association Limited | Households | 1972 |
| Good Teeth Theatre Ltd | Arts & recreation | 2020 |
| Goodbytes.Network Ltd | Wholesale & retail | 2018 |
| Gostudious Ltd | Education | 2025 |
| Graham Estates Ltd | Real estate | 2019 |
| Grainne O`Keeffe Architects Limited | Professional & scientific | 2008 |
| Graphic JAM Limited | Manufacturing | 1994 |
| Graphweb Design Ltd | Other services | 2014 |
| Green Bird Communications Ltd | Other services | 2020 |
| Green Interior Design Limited | Extraterritorial | 2024 |
| Green Otter Ltd | Professional & scientific | 2025 |
| Green With Envy Limited | Administrative & support | 2002 |
| Greenacres Day Nursery School (Hampton) Limited | Education | 1999 |
| Greendawn Limited | Real estate | 1983 |
| Greenfield Building Solutions Limited | Construction | 2025 |
| Greenfield Operations Limited | Administrative & support | 2018 |
| Greengate Property Investments Ltd | Real estate | 2017 |
| Greenha Ltd | Professional & scientific | 2017 |
| Greenland Medical Ltd | Health & social care | 2020 |
| Greenland Property Partners Ltd | Real estate | 2017 |
| Greenstone Training Limited | Professional & scientific | 2008 |
| Grey Heron IT Solutions Limited | Information & communication | 2010 |
| Grind and Steam Ltd | Hospitality | 2017 |
| Grow Capital Limited | Extraterritorial | 2014 |
| Grundini Ltd. | Professional & scientific | 2007 |
| GS Bhermi Medical Ltd | Health & social care | 2023 |
| Guardians Technology Solutions Ltd | Information & communication | 2022 |
| Gupaonc Ltd | Health & social care | 2018 |
| Gurkhas Ekta Paradise Limited | Extraterritorial | 2019 |
| H.B. Kingston (Land) Limited | Real estate | 1966 |
| H.I.M Management Services Ltd | Real estate | 2021 |
| H2GENESIS Ltd | Professional & scientific | 2022 |
| HA4 Properties Ltd | Real estate | 2024 |
| Haak Real Estate Ltd | Extraterritorial | 2021 |
| Hackedlive Ltd | Information & communication | 2018 |
| Hale Dunne Enterprises Ltd. | Real estate | 2015 |
| Half Acre Rentals Limited | Real estate | 2025 |
| Half Acre Ventures Limited | Real estate | 2025 |
| Halomarts Limited | Hospitality | 1991 |
| Hampton & Hampton Hill Voluntary Care | Health & social care | 2007 |
| Hampton ALE House Limited | Hospitality | 2025 |
| Hampton and Richmond Borough Football Club Limited | Arts & recreation | 1997 |
| Hampton Bookshop | Other services | 2018 |
| Hampton Building Solution Ltd | Construction | 2021 |
| Hampton Catering Equipment Services Ltd | Manufacturing | 2021 |
| Hampton Consulting Services Limited | Professional & scientific | 2019 |
| Hampton Education Centre Ltd | Education | 2021 |