| Grovely Wood Limited | Manufacturing | 2016 |
| Growth First Limited | Professional & scientific | 2012 |
| GS Homes Ltd | Real estate | 2014 |
| GSE Trustees Limited | Professional & scientific | 2003 |
| GSE Trustees NO. 2 Limited | Administrative & support | 2009 |
| GSP Precision Ltd | Administrative & support | 2024 |
| GT Bodyshop Ltd | Wholesale & retail | 2025 |
| GT Driving School Ltd | Education | 2022 |
| Guardian Angel Computing Ltd | Information & communication | 2017 |
| Gubby Eventing Limited | Agriculture & fishing | 2014 |
| Gul-Corp Limited | Construction | 2016 |
| Gul-Power Limited | Professional & scientific | 2021 |
| Gundi Limited | Administrative & support | 2020 |
| Gurkha Cycles Ltd | Wholesale & retail | 2026 |
| Gurkha Gunners Store Ltd | Wholesale & retail | 2026 |
| Gurkha Kitchen Salisbury Limited | Hospitality | 2023 |
| Gurkha Property Maintenance Limited | Real estate | 2025 |
| Guru Resourcing Ltd. | Administrative & support | 2002 |
| Gurungs Property Limited | Real estate | 2017 |
| Gutteridge Farm Barns Management Company Limited | Households | 2002 |
| GUY Nicholls Limited | Information & communication | 2003 |
| Guyatts Holdings Ltd | Real estate | 2022 |
| Guyatts of Salisbury Limited | Wholesale & retail | 2011 |
| GVS Recovery Limited | Wholesale & retail | 2015 |
| Gwconsult Ltd | Information & communication | 2025 |
| GWD Group Ltd | Extraterritorial | 2026 |
| GWD Homes Ltd | Real estate | 2020 |
| GWS Precision Engineering Limited | Other services | 2008 |
| GWT Trading Limited | Wholesale & retail | 1994 |
| Gwynne Gardens Management Company Limited | Households | 2007 |
| Gymies Ltd | Arts & recreation | 2007 |
| G’S Golden Whisk Ltd | Wholesale & retail | 2026 |
| H & E Engineers (Maintenance) Limited | Construction | 1999 |
| H & N Studios Limited | Extraterritorial | 2024 |
| H & S Rogers Farming Ltd | Agriculture & fishing | 2004 |
| H a Professional Services Limited | Administrative & support | 2025 |
| H B Reid & SON Limited | Agriculture & fishing | 2014 |
| H F Inspire Ltd | Wholesale & retail | 2025 |
| H M C Electrical Contractors Ltd | Construction | 2021 |
| H P Contracts Limited | Extraterritorial | 2006 |
| H P I X Ltd | Wholesale & retail | 2024 |
| H R Tribbeck & SON Limited | Wholesale & retail | 2025 |
| H&E Engineers (Mechanical) Ltd | Construction | 2012 |
| H&Sons Scaffolding Ltd | Construction | 2016 |
| H.N.V. Professional Services Limited | Extraterritorial | 1985 |
| H.W. Dibben (Handley) Limited | Extraterritorial | 1967 |
| H.W. White Limited | Real estate | 2000 |
| HA Francis Advisory Services Ltd | Professional & scientific | 2024 |
| HA4 Management Limited | Hospitality | 2015 |
| Habitec Limited | Real estate | 2023 |
| Hadfield Enterprise Limited | Information & communication | 2001 |
| Hagley Manor (Hagley) Management Company Limited | Households | 2024 |
| Hail Taxis Ltd | Transport & logistics | 2025 |
| Haimoss Limited | Construction | 1975 |
| Hair Art (Salisbury) Limited | Other services | 2004 |
| Hair by YB Ltd | Other services | 2023 |
| Hairdressing Salon Limited | Other services | 2015 |
| Haiven Technologies Ltd | Information & communication | 2025 |
| Hakky Ltd | Wholesale & retail | 2023 |
| Halberd Services Limited | Administrative & support | 2015 |
| Hale Barn Court (Residents) Company Limited | Households | 1987 |
| Hales Cleaning Contractors Limited | Administrative & support | 1969 |
| Hales Road 1961 Limited | Extraterritorial | 2014 |
| Halfway House Salisbury Limited | Hospitality | 2016 |
| Hallelujah African Caribbean Supermarket Limited | Wholesale & retail | 2020 |
| Hallworth Construction (Cheshire) Limited | Construction | 2004 |
| Halo (Cambridge) Management Company Limited | Households | 2015 |
| Halo Sports Limited | Wholesale & retail | 2013 |
| Halsol Limited | Professional & scientific | 2007 |
| Hamlet Croft Management Company Limited | Households | 2012 |
| Hammerhaus Limited | Real estate | 2018 |
| Hammond Fields Estate Management Company Limited | Households | 2016 |
| Hammond Gower Publications Limited | Manufacturing | 1991 |
| Hammonds Gate (Burgess Hill) Management Company Limited | Real estate | 2018 |
| Hampshire and Borders Ltd | Professional & scientific | 2025 |
| Hampshire Community BNK Ltd. | Financial services | 2014 |
| Hampshire Event Loos Limited | Water & waste | 2024 |
| Hampshire Pedigrees Ltd | Agriculture & fishing | 2021 |
| Hampton Bridge RTM Company Limited | Households | 2025 |
| Hampton Park Pavilion | Arts & recreation | 2012 |
| Hamstead Holdings Limited | Real estate | 1992 |
| Hand Car Wash Bulford Ltd | Administrative & support | 2025 |
| Hand ME Down Preloved Ltd | Wholesale & retail | 2026 |
| Handful Coffee Ltd | Manufacturing | 2024 |
| Handled Reply Limited | Information & communication | 2025 |
| Handley Enterprises Limited | Manufacturing | 2016 |
| Handsome Software Ltd | Administrative & support | 2015 |
| Handy Compliance Ltd | Construction | 2022 |
| Hanford Holdings Limited | Real estate | 1962 |
| Hanford Limited | Extraterritorial | 1992 |
| Hannah Louise Events Ltd | Arts & recreation | 2024 |
| Hannah Rickard Medical Ltd | Health & social care | 2021 |
| Hanno Blue Ltd | Professional & scientific | 2020 |
| Hansel and Gretel Traditional Toys Limited | Wholesale & retail | 2005 |
| Hanson-Chase Consulting Limited | Administrative & support | 1995 |
| Happy Flooring Ltd | Wholesale & retail | 2018 |
| Happy Hearts Cardiac Exercise and Support Limited | Health & social care | 2019 |
| Happy Oak Surveying Ltd | Professional & scientific | 2026 |
| Happybara Ltd | Wholesale & retail | 2024 |
| Harben Pumps (Scotland) Limited | Professional & scientific | 1999 |