| Geocafe Ltd | Hospitality | 2018 |
| Georgina Williams Plastic Surgery Limited | Health & social care | 2024 |
| Geos Holdings Limited | Financial services | 2025 |
| GG-353-382 Limited | Real estate | 2022 |
| GG-636-185 Limited | Real estate | 2022 |
| GG-832-707 Limited | Real estate | 2022 |
| GG-976-712 Limited | Real estate | 2022 |
| GHC Communications Ltd | Information & communication | 2016 |
| Ghost Private Travel Ltd | Transport & logistics | 2026 |
| Gilbern Investments Limited | Real estate | 2003 |
| Gillotts School | Education | 2012 |
| Gilson Court Residents Company Limited | Households | 1993 |
| Giraffe Insights Limited | Professional & scientific | 2017 |
| Giraffe Scaffold Services Ltd | Construction | 2013 |
| Giraffe Scaffolding (London) Ltd | Construction | 2020 |
| Giraffe Scaffolding Ltd | Construction | 2011 |
| Glantre Engineering Limited | Construction | 2003 |
| Glendale Shepherd Huts Ltd | Construction | 2023 |
| Global Commodity Search Ltd | Administrative & support | 2011 |
| Global Products Enterprise Limited | Information & communication | 2025 |
| Glomac Kingswood Limited | Financial services | 2025 |
| Gloww Recruitment Limited | Administrative & support | 2019 |
| GLT Legal Consultancy Limited | Professional & scientific | 2017 |
| Glyde Digital Ltd | Information & communication | 2023 |
| GME Trustees Limited | Professional & scientific | 2023 |
| Goalistic Ltd | Information & communication | 2021 |
| Golden Ratio Media Group Ltd. | Information & communication | 2020 |
| Goldpets Limited | Wholesale & retail | 2017 |
| Goldtax Limited | Real estate | 2006 |
| Golf Day Gifts Ltd | Wholesale & retail | 2026 |
| Good Sorts Limited | Transport & logistics | 2016 |
| Good Start Hutchings Limited | Professional & scientific | 2018 |
| Goodboy Galaxy Limited | Information & communication | 2021 |
| Goodfull Media Ltd | Information & communication | 2025 |
| Gordons Property Partners Limited | Financial services | 2019 |
| Gower Associates Ltd | Construction | 2020 |
| Goyabam Property Holdings Limited | Real estate | 1988 |
| Grabur Ltd | Transport & logistics | 2019 |
| Graduate Property Developments Limited | Construction | 2021 |
| Graham Duncan Limited | Other services | 2015 |
| Gravel Hill Crescent Management Limited | Extraterritorial | 2006 |
| Great Green Street Farm Limited | Real estate | 2016 |
| Greek+Ventures Limited | Wholesale & retail | 2026 |
| Green Call Ltd | Information & communication | 2011 |
| Green Mountain Invest. Limited | Real estate | 2024 |
| Green's Keep Management Company Limited | Households | 1992 |
| Greenings (Long Crendon) Management Company Limited | Households | 2018 |
| Greenland Henley Limited | Construction | 2012 |
| Greenland Holdings Limited | Professional & scientific | 2007 |
| Greenland Limited | Construction | 1995 |
| Greys Consulting and Advising Limited | Financial services | 2011 |
| Gridox Ltd | Administrative & support | 2025 |
| Grit Tech Talent Ltd | Information & communication | 2020 |
| Ground Rent Market Limited | Real estate | 2012 |
| Grouse & ALE Lease Limited | Hospitality | 2009 |
| GS Medical Practice Ltd | Professional & scientific | 2014 |
| GTM Signals Limited | Information & communication | 2025 |
| GTO House Limited | Real estate | 2022 |
| H G Thatcher Limited | Construction | 2014 |
| H Thompson Ltd | Education | 2025 |
| H&B Deluxe Ltd | Other services | 2023 |
| H-On-T Ltd | Construction | 2026 |
| H.I.T Sports Medicine Ltd | Health & social care | 2025 |
| Haep Ltd | Wholesale & retail | 2024 |
| Half Acre Property Ltd | Real estate | 2022 |
| Halima Muslima Wellbeing and Retreats CIC | Other services | 2021 |
| Halima Publishing Ltd | Information & communication | 2022 |
| Halliday Lane Management Company Limited | Households | 2018 |
| Hamble Interiors Limited | Professional & scientific | 2017 |
| Hamble Residents Association Limited | Households | 1989 |
| Hamilton Place Checkendon Limited | Households | 2015 |
| Hampton C Limited | Professional & scientific | 2025 |
| Hancock Polo Ltd | Agriculture & fishing | 2021 |
| Happy Consulting Services Ltd | Information & communication | 2018 |
| Happy WOK Henley Limited | Hospitality | 2013 |
| Harlem Carter (Digital) Ltd. | Wholesale & retail | 2012 |
| Harmonia Consulting Ltd | Professional & scientific | 2013 |
| Harmony Homes Building & Joinery Ltd | Construction | 2023 |
| Harpsden Court Ltd | Professional & scientific | 2026 |
| Harrily | Professional & scientific | 2007 |
| Harris Collective Ltd | Arts & recreation | 2025 |
| Hart Capital Partners (UK) Limited | Financial services | 2021 |
| Hart Roastery Ltd | Hospitality | 2020 |
| Hart ST Investments Ltd | Construction | 2015 |
| Hart ST Ltd | Construction | 2012 |
| Hart ST Maltings Ltd | Construction | 2012 |
| Hart ST Yard Ltd | Construction | 2012 |
| Hartslock Court Limited | Households | 1969 |
| Harwood Textiles Limited | Wholesale & retail | 2002 |
| Harwoods Estate Agents Ltd | Real estate | 2026 |
| Hashtag City Limited | Extraterritorial | 1998 |
| Haylo Co. Ltd | Arts & recreation | 2018 |
| Hazeldene Limited | Real estate | 2017 |
| HCS Deer Services Limited | Agriculture & fishing | 2015 |
| Healea Ltd | Wholesale & retail | 2026 |
| Healthium Clinics Limited | Health & social care | 2016 |
| Hearn Court Management Company Limited | Households | 1986 |
| Heart and Soul Life Ltd | Arts & recreation | 2012 |
| Heart of Cardiology Limited | Health & social care | 2012 |
| Heat Space Ltd | Wholesale & retail | 2026 |