| Frome Silk Mill Arts Limited | Real estate | 2005 |
| Fusion Building Services Management Ltd | Professional & scientific | 2010 |
| Future Proof Performance Ltd | Manufacturing | 2022 |
| Fuzzy Duck Spirits Ltd | Manufacturing | 2023 |
| G W Sheppard & SON Limited | Wholesale & retail | 2005 |
| G&B Lettings Ltd | Real estate | 2025 |
| G. T. Air Conditioning Services Limited | Construction | 2013 |
| Gadgethelpline Limited | Administrative & support | 2007 |
| Gaialink Consulting Limited | Professional & scientific | 2025 |
| Garden Forum Limited | Information & communication | 2000 |
| Gardenforum.Co.Uk Limited | Information & communication | 2000 |
| Garditon Limited | Professional & scientific | 2025 |
| Garstonomy Limited | Hospitality | 2008 |
| GDW Building & Renovations Ltd | Construction | 2013 |
| GDW Property Ltd | Real estate | 2023 |
| GEA Farm Technologies (UK) Ltd | Manufacturing | 1971 |
| Genesis Brickwork Ltd. | Construction | 1996 |
| Genki Pilates Ltd. | Professional & scientific | 2014 |
| Geoclear Limited | Professional & scientific | 2012 |
| Giddy UP Limited | Arts & recreation | 2025 |
| Ginger TOM Ltd | Professional & scientific | 2021 |
| Girls WHO Grind Coffee Ltd | Manufacturing | 2017 |
| Global Airships Ltd | Manufacturing | 2021 |
| Gloweth Barton Management Company Limited | Households | 2020 |
| Gmbah Limited | Health & social care | 2014 |
| GNU3D Limited | Information & communication | 2025 |
| Gojac Limited | Real estate | 2012 |
| Golden FC Limited | Hospitality | 2021 |
| Gone Biking Ltd | Real estate | 2024 |
| Good Timber Limited | Wholesale & retail | 2019 |
| Goodcork Ltd | Financial services | 2024 |
| Gooding Property Limited | Real estate | 2022 |
| Gorilla Projects Ltd | Construction | 2023 |
| Grassroots Recycling Group Ltd | Financial services | 2021 |
| Grassroots Recycling Ltd | Water & waste | 2006 |
| Graythwaite Properties Limited | Hospitality | 1962 |
| Green Square Developments Limited | Education | 2015 |
| Greenfield Asset & Property Management Limited | Real estate | 2010 |
| Greenfield Performing Arts & Consulting Limited | Information & communication | 2025 |
| Greenlife Plumbing Ltd | Construction | 2014 |
| Griffin's Garage Ltd | Wholesale & retail | 2002 |
| Grogan & Grogan Limited | Construction | 1995 |
| GSB Kingston Ltd | Professional & scientific | 2012 |
| GSN Developments Ltd | Construction | 2020 |
| Guardian Professional Trustees Limited | Financial services | 2016 |
| Guild Anderson Furniture Limited | Manufacturing | 1997 |
| Gunn Club Limited | Wholesale & retail | 2013 |
| GUSTO23 Ltd | Hospitality | 2024 |
| Gustro Ltd | Hospitality | 2023 |
| GUY & Metherell Ltd. | Agriculture & fishing | 2018 |
| Gyro Training Ltd | Transport & logistics | 2008 |
| Gyromania Ltd | Administrative & support | 2010 |
| H & H (Corsley) Ltd | Hospitality | 2020 |
| Hackney Horse Society(The) | Agriculture & fishing | 1884 |
| Half Hour Plumbing & Heating Limited | Construction | 2013 |
| Hallett Agri Ltd | Agriculture & fishing | 2026 |
| Hana HOU Ltd | Real estate | 2018 |
| Hand to Earth Landscapes Ltd | Administrative & support | 2020 |
| Hangar 33 Ltd | Wholesale & retail | 2025 |
| Happy Days (Warminster) Limited | Wholesale & retail | 2022 |
| Harley Farms (South) | | 1997 |
| Harley Waste Management & Recovery Limited | Water & waste | 2013 |
| Harridges Gym Ltd | Arts & recreation | 2014 |
| Harriet Chloe Limited | Other services | 2011 |
| Harrison-Capper Consulting Ltd | Professional & scientific | 2016 |
| Harry Torrance Holdings Ltd | Financial services | 2022 |
| Hart Ridge Consulting Limited | Administrative & support | 2016 |
| Harvest Consulting Limited | Professional & scientific | 2024 |
| Harveys Autotech Limited | Wholesale & retail | 2018 |
| Hawnby & Weston Ltd | Professional & scientific | 2021 |
| HAY Hutch Ltd | Manufacturing | 2009 |
| Haybridge Park Limited | Extraterritorial | 2014 |
| Healing YOU Limited | Health & social care | 2026 |
| Heat Plus Plumbing Limited | Construction | 2015 |
| Heaven's Gate Carpentry and Joinery Ltd | Manufacturing | 2024 |
| Heaven's Gate Shepherd Huts Ltd | Manufacturing | 2021 |
| Hebe-Fitness Ltd | Arts & recreation | 2019 |
| Hedges & Edges Limited | Administrative & support | 2003 |
| Henry Frederick Thomas Rhodes Limited | Extraterritorial | 2016 |
| Hereb Ltd | Construction | 2025 |
| Heritage Cameras Limited | Wholesale & retail | 2001 |
| Heritage Carpentry (Wilts) Ltd | Construction | 2014 |
| Hettie HEN Ltd | Manufacturing | 2019 |
| Heytesbury Heating & Plumbing LLP | | 2013 |
| Heywood-Bates Properties Ltd | Real estate | 2026 |
| HG Lettings Limited | Real estate | 2011 |
| HHJ Construction Ltd | Construction | 2024 |
| Hidden Wood Glamping Ltd | Hospitality | 2021 |
| High Perch Media Limited | Information & communication | 2026 |
| Hillcrest Management Company (Stratford) Limited | Real estate | 2011 |
| Hillgrove Properties Limited | Real estate | 1999 |
| Hireit-Today Ltd | Information & communication | 2021 |
| Historic Toys Limited | Professional & scientific | 2002 |
| Hive Accountancy Services Limited | Professional & scientific | 2025 |
| Hoki Limited | Information & communication | 2019 |
| Holbrook Joinery & Cabinetmaking Limited | Manufacturing | 2023 |
| Holcombe Group Ltd | Other services | 2022 |
| Holden Engineering and Consultancy Limited | Professional & scientific | 2020 |
| Holding Solutions Ltd | Real estate | 2021 |
| Homes That LET Ltd | Real estate | 2026 |