| Grove Farm Holdings Limited | Financial services | 2018 |
| Grove Game Ltd | Wholesale & retail | 2026 |
| Grovecom Limited | Hospitality | 2025 |
| Grow Marketing Limited | Professional & scientific | 2017 |
| Grow With HDE Ltd | Administrative & support | 2020 |
| Growth Rocket Apps Ltd | Information & communication | 2019 |
| Growth Technology Limited | Other services | 1992 |
| GRP Sports Consultancy Ltd | Professional & scientific | 2022 |
| GRS South West Investments Ltd | Real estate | 2024 |
| GRT Land Advance Limited | Real estate | 2012 |
| Grubs UP Limited | Hospitality | 2017 |
| Grumpy Rabbit Limited | Professional & scientific | 1998 |
| GS Taunton Limited | Hospitality | 2022 |
| GSJ Trading Ltd | Wholesale & retail | 2021 |
| GT Aesthetics Limited | Administrative & support | 2025 |
| GTC Civil Engineering Limited | Construction | 2006 |
| Guardiangs Limited | Administrative & support | 2013 |
| Guddi and Gikki Limited | Hospitality | 2015 |
| Guerrier-Adams Ltd | Health & social care | 2022 |
| Guitar Gear Giveaway Limited | Wholesale & retail | 2019 |
| Gundenham Farms Limited | Agriculture & fishing | 1959 |
| Gurkha 3 Limited | Hospitality | 2012 |
| Gut-Smart Limited | Wholesale & retail | 2022 |
| Guve Limited | Hospitality | 2017 |
| GUY Clayson Plumbing & Heating Ltd | Construction | 2012 |
| Gweek Quay Limited | Transport & logistics | 2017 |
| Gybe Sailing Ltd | Wholesale & retail | 2018 |
| GYC Couriers Limited | Transport & logistics | 2022 |
| Gyffarde Court Management Co. Limited | Households | 1989 |
| Gymnastics Calisthenics Kingdom Ltd | Arts & recreation | 2022 |
| H & a Hairstyle Ltd | Other services | 2019 |
| H & D C Besley Limited | Agriculture & fishing | 2012 |
| H & H Accountants Limited | Professional & scientific | 1995 |
| H & J Properties Ltd | Real estate | 2026 |
| H & M Motors Limited | Wholesale & retail | 2011 |
| H & S Boast Limited | Financial services | 2023 |
| H Adamali Limited | Health & social care | 2015 |
| H Attwell Ltd | Agriculture & fishing | 2017 |
| H Curtis Ltd | Extraterritorial | 2022 |
| H E Dibble Ltd | Financial services | 2023 |
| H J Jennings Ltd | Manufacturing | 2007 |
| H P R Property Ltd | Construction | 2018 |
| H&H Accommodation Limited | Hospitality | 2021 |
| H&H Free From Ltd | Wholesale & retail | 2019 |
| H-Team Ltd | Transport & logistics | 2019 |
| H. Morrison (Racing) Limited | Other services | 1996 |
| H.C.Webber & SON Limited | Agriculture & fishing | 1961 |
| H.G.Tincknell Limited | Agriculture & fishing | 1957 |
| H.J. Pepperell & Company Limited | Real estate | 1955 |
| H.P.Salter & Sons Limited | Financial services | 1949 |
| H.W. Back & SON (Builders) Limited | Construction | 1966 |
| H4H Consultancy Ltd | Education | 2022 |
| Habitans Limited | Real estate | 2016 |
| Habstone Holdings Ltd | Financial services | 2024 |
| Hackthorn Enterprises Ltd | Real estate | 2026 |
| Hafsah's PVT Ltd | Hospitality | 2024 |
| Haft Services Ltd | Health & social care | 2022 |
| Hair @ 22 Limited | Other services | 2012 |
| Hair Academy South West Limited | Education | 2004 |
| HAIR@22 Inc Limited | Other services | 2023 |
| Hairdressing by Kirsty Ltd | Other services | 2025 |
| Halcyon (Long Ashton) Management Company Limited | Households | 2024 |
| Halcyon Bird Ltd | Professional & scientific | 2022 |
| Half Moon Taunton Ltd | Hospitality | 2025 |
| Hallfield Homes Ltd | Real estate | 2024 |
| Halloke Holdings Limited | Professional & scientific | 2003 |
| Hallowsfest CIC | Administrative & support | 2026 |
| Halse Coaching LLP | | 2024 |
| Halse Manor Management Limited | Households | 1989 |
| Halstead & Associates (London) Limited | Public administration | 2010 |
| Halstock Holdings Limited | Financial services | 2015 |
| Halsway Manor Limited | Hospitality | 1993 |
| Halsway Manor Society Limited | Education | 1965 |
| HAM Farm Horses Limited | Agriculture & fishing | 2010 |
| Hamell (West) Limited | Hospitality | 1968 |
| Hamilton Direct Limited | Professional & scientific | 1997 |
| Hamilton Hunt Properties Limited | Real estate | 2022 |
| Hamilton Stone Group Limited | Professional & scientific | 2017 |
| Hamilton Stone Ltd | Administrative & support | 2014 |
| Hamilton Stone Property Ltd | Real estate | 2015 |
| Hamiltons (Taunton) Limited | Wholesale & retail | 1988 |
| Hamlet SIX Music Limited | Other services | 2009 |
| Hamlet SIX Productions Limited | Information & communication | 2026 |
| Hammered (SW) Limited | Extraterritorial | 2025 |
| Hammered British Coins Ltd | Wholesale & retail | 2013 |
| Hammet Street Consultants Limited | Professional & scientific | 2011 |
| Hammets Wharf Management Limited | Real estate | 2005 |
| Hampstead Couples Psychotherapy (HCP) Limited | Health & social care | 2016 |
| Hanchard Farming Limited | Real estate | 2021 |
| Hancox Farm Limited | Agriculture & fishing | 2018 |
| Handyads Ltd | Professional & scientific | 2023 |
| Hannah Stewart Ltd | Health & social care | 2017 |
| Happy at Home Ltd | Health & social care | 2013 |
| Happy Comfy Homes Ltd | Wholesale & retail | 2024 |
| Happy YOU Fitness and Consultancy Limited | Administrative & support | 2018 |
| Harborne Dental Practice Limited | Health & social care | 2016 |
| Harbour Court (Sherborne) Management Company Limited | Households | 2018 |
| Harcombe Environmental Services Ltd | Professional & scientific | 2013 |
| Harcourt Mews Limited | Households | 2008 |
| Hardstone Developments Ltd | Real estate | 2025 |