| Golden Fortune Feast Ltd | Hospitality | 2025 |
| Golden Gadgets Ltd | Wholesale & retail | 2025 |
| Golden Goose PUB Company Ltd | Hospitality | 2025 |
| Goldun Limited | Wholesale & retail | 2023 |
| Goldwaters Associate Professionals Limited | Professional & scientific | 2019 |
| Golf Monkey Limited | Arts & recreation | 2011 |
| Gosport Cars Limited | Administrative & support | 2026 |
| GPM Property Ltd | Real estate | 2021 |
| GPR Mechanical Solutions Limited | Construction | 2021 |
| Grace Gardens Management Company Limited | Real estate | 2016 |
| Graftin DEV Worldwide Ltd | Manufacturing | 2022 |
| Graham Allen Properties Limited | Real estate | 2010 |
| Granada Property Management Ltd. | Households | 2004 |
| Granada Road Management Company Limited | Professional & scientific | 2012 |
| Grange Road Ltd. | Real estate | 2017 |
| Grasshopper Ventures Ltd | Education | 2023 |
| Grate Catering and Events Ltd | Hospitality | 2018 |
| Grate Fire Kitchen Ltd | Hospitality | 2025 |
| Gravitas Power Ltd | Construction | 2025 |
| Green Holme Ltd | Real estate | 2015 |
| Green Investment Holdings Ltd | Extraterritorial | 2017 |
| Green Mango Limited | Other services | 2016 |
| Green Shed Ltd | Wholesale & retail | 2021 |
| Green Taxi Technologies Limited | Transport & logistics | 2021 |
| Greenbox Associates Ltd | Construction | 1938 |
| Greenholme Broadway Development Limited | Real estate | 2018 |
| Greenway Pallet Services Limited | Manufacturing | 1998 |
| Greyfalcon (BE) Limited | Extraterritorial | 2013 |
| Greyfalcon Development Limited | Construction | 2012 |
| Greyfriars Court the Retreat Ltd | Households | 2018 |
| Griffin Car Sales Ltd | Wholesale & retail | 2026 |
| Grounded in Southsea Ltd | Wholesale & retail | 2023 |
| Grow Facilities Services Ltd | Administrative & support | 2018 |
| Growing Wilder Ltd | Wholesale & retail | 2021 |
| Growth Digital Solutions Corp Ltd | Information & communication | 2025 |
| GTT & Co UK Limited | Wholesale & retail | 2026 |
| Guestcare Limited | Other services | 2019 |
| Guide Star Ltd | Transport & logistics | 2019 |
| Guildhall Walk Properties Ltd | Households | 2025 |
| Gunwharf News Limited | Wholesale & retail | 2002 |
| GUV Solution Ltd | Transport & logistics | 2016 |
| GUY Rutherford Group Ltd | Administrative & support | 2022 |
| Gyan Store Ltd | Wholesale & retail | 2026 |
| Gym 01 Ltd | Arts & recreation | 2012 |
| H&C Land Developments Ltd | Real estate | 2024 |
| H&C Recruitment Ltd | Administrative & support | 2026 |
| H&Ksd Ltd | Real estate | 2026 |
| H1VE 3 Ltd | Real estate | 2024 |
| H2HR Ltd | Administrative & support | 2014 |
| Hack Pompey Ltd | Administrative & support | 2018 |
| Hafiz Law Ltd | Information & communication | 2026 |
| HAI Cheng Wang Limited | Hospitality | 2017 |
| Hair Academy One CIC | Other services | 2026 |
| Halal Heaven Ltd | Wholesale & retail | 2026 |
| Halcyon Homes Limited | Construction | 2002 |
| Halls Salon Ltd | Other services | 2025 |
| Haman Fvnta Group Ltd | Information & communication | 2023 |
| Haman Fvnta Ltd | Professional & scientific | 2023 |
| Hambrook Caravan Park Limited | Hospitality | 2022 |
| Hameed Khan Ltd | Wholesale & retail | 2026 |
| Hamilton House Apartments Southsea Limited | Real estate | 2019 |
| Hampshire & Country Mortgages Ltd | Financial services | 2020 |
| Hampshire Commercial Motors Ltd | Wholesale & retail | 2023 |
| Hampshire Domiciliary Care Providers Limited | Other services | 2009 |
| Hampshire Electrical & Mechanical Ltd | Construction | 2025 |
| Hampshire Electrical Ltd | Construction | 2015 |
| Hampshire Engineered Timber Solutions Ltd | Professional & scientific | 2024 |
| Hampshire Gardening Ltd | Professional & scientific | 2025 |
| Hampshire Plastering & Spray Rendering Limited | Construction | 2026 |
| Hampshire Property and Investments Ltd | Real estate | 2023 |
| Hampshire Window Centre Limited | Wholesale & retail | 2019 |
| Handleys Court Residents Association Limited | Households | 1986 |
| Hang's Property Holding Ltd | Households | 2016 |
| Hannah's Homewear Limited | Manufacturing | 2025 |
| Hansler Digital Ltd | Information & communication | 2026 |
| Hants Realty Ltd | Real estate | 2017 |
| HAO CHI (Portsmouth) Ltd | Hospitality | 2023 |
| Happy Algernon Ltd | Professional & scientific | 2008 |
| Happy Soles Limited | Wholesale & retail | 2015 |
| Harbornne Limited | Information & communication | 2025 |
| Harbour and Hyde Ltd | Hospitality | 2025 |
| Harbour Creek Ltd | Wholesale & retail | 2016 |
| Harbour of Mercy CIC | Health & social care | 2025 |
| Harbour of Mercy International Ltd | Information & communication | 2025 |
| Harbour Properties Group Ltd | Real estate | 2026 |
| Harbourside Estates Limited | Real estate | 2018 |
| Hard Holdings Trading Ltd | Real estate | 2024 |
| Hardscape Solutions Ltd | Administrative & support | 2024 |
| Harirr Ltd | Wholesale & retail | 2025 |
| Harmer Lettings Limited | Real estate | 2016 |
| Harper CX Consultancy Limited | Professional & scientific | 2017 |
| Harris Drywall Ltd | Construction | 2012 |
| Hartts Construction Limited | Construction | 2022 |
| Hartts Group Ltd. | Manufacturing | 2018 |
| Hathi Holdings Limited | Financial services | 2026 |
| Hathi Investments Ltd | Real estate | 2005 |
| Havelock Flats RTM Company Limited | Households | 2021 |
| Havror Ltd | Manufacturing | 2025 |
| Hayling Spice Ltd | Extraterritorial | 2017 |
| Hayplanet Ltd | Hospitality | 2016 |