| Gillyflower Limited | Wholesale & retail | 2018 |
| Gingko Management Company Limited | Real estate | 2012 |
| Giving AID Limited | Extraterritorial | 2013 |
| Gktek Ltd | Other services | 2019 |
| Gleaming Cleans South West Ltd | Administrative & support | 2024 |
| Glebe RE Ltd | Real estate | 2022 |
| Glen Hookins Limited | Construction | 2003 |
| Global Recommerce Ltd | Professional & scientific | 2014 |
| Gntk Ltd | Wholesale & retail | 2023 |
| Golden Smoke House Ltd | Hospitality | 2021 |
| Gornhays Management Company Limited | Households | 2006 |
| Gossford Constructions Ltd | Construction | 2023 |
| Gotham Groundworks Limited | Construction | 2012 |
| Grant Engineering Limited | Manufacturing | 2003 |
| Granville Place Management Co. Limited | Professional & scientific | 1990 |
| Great Bear Limited(The) | Administrative & support | 1972 |
| Great Bradley Burial Ground Ltd | Other services | 2022 |
| Great Scott Optics Ltd | Wholesale & retail | 2025 |
| Green Construction (SW) Limited | Construction | 2014 |
| Green Valley Pest Control Limited | Administrative & support | 2021 |
| Greener for Life Ltd | Professional & scientific | 2007 |
| Greengage Developments (South West) Limited | Construction | 2008 |
| Greenham Business Park Management Limited | Extraterritorial | 2012 |
| Greenterm Property Management Limited | Households | 1989 |
| Greentours Limited | Administrative & support | 2003 |
| Grounded Electrical Ltd | Manufacturing | 2020 |
| Grove Roofing (SW) Ltd | Construction | 2015 |
| GSM General Builders Limited | Construction | 2013 |
| GSM Land Management Limited | Professional & scientific | 2013 |
| GSV Retail Limited | Wholesale & retail | 2026 |
| Guidelines Printing Ltd | Manufacturing | 2024 |
| GW3 Consulting Ltd | Professional & scientific | 2019 |
| Gwallon Keas Management Company Limited | Households | 2019 |
| H J Dismantling Limited | Water & waste | 2004 |
| Haart Associates Ltd | Real estate | 2014 |
| Haddon Heights (Bampton) Management Limited | Real estate | 2023 |
| Halberton Court Farm Shop Limited | Wholesale & retail | 2020 |
| Halberton Poultry Limited | Agriculture & fishing | 1963 |
| Halo Investment and Management Limited | Construction | 2022 |
| Halpinrobbins Limited | Professional & scientific | 2013 |
| Harbourside (Cadeleigh) Limited | Real estate | 1997 |
| Hardacres Garage Limited | Wholesale & retail | 2019 |
| Hardy & Co Property Limited | Real estate | 2022 |
| Harmont Developments Ltd | Construction | 2026 |
| Harold AI Property Ltd | Information & communication | 2026 |
| Harris Motor Services Limited | Wholesale & retail | 2023 |
| Hart Group Holdings Ltd | Administrative & support | 2015 |
| Hartnoll Hotel (Bolham) Ltd | Hospitality | 2022 |
| Harvey Construction South West Limited | Construction | 2014 |
| Hawkins Electrical (SW) Ltd | Construction | 2021 |
| Hawks Meadow Properties (Holsworthy) Limited | Real estate | 2016 |
| Hayne Farm (Gittisham) Management Company Ltd | Households | 2018 |
| Hazel Farms Limited | Agriculture & fishing | 2015 |
| Hazel UK Limited | Administrative & support | 1996 |
| Healthcare Learning Resources Ltd | Wholesale & retail | 2024 |
| Healthy Babies UK Community Interest Company | Health & social care | 2011 |
| Heard and Sendell Limited | Wholesale & retail | 1990 |
| Heard Construction Ltd | Construction | 2022 |
| Heathcoat Cricket Club | Arts & recreation | 2015 |
| Helen Nash Photography Ltd | Professional & scientific | 2024 |
| Hello HQ Limited | Information & communication | 2022 |
| Henetty Properties Limited | Real estate | 2022 |
| Hermes Financial Consultancy Ltd | Agriculture & fishing | 2015 |
| Heywood Bars Limited | Hospitality | 2015 |
| High and Wide Limited | Information & communication | 2007 |
| High Cross Game Farm Limited | Agriculture & fishing | 2003 |
| Highcrown Trading Ltd | Wholesale & retail | 2010 |
| Hill Business Park Ltd | Real estate | 2026 |
| Hillersdon House Properties Limited | Real estate | 1985 |
| Hingston View (Moretonhampstead) Management Company Ltd | Households | 2021 |
| HJ Mitchell Properties Ltd | Real estate | 2024 |
| HK Properties Tiverton Limited | Real estate | 2023 |
| HL Agri Ltd | Agriculture & fishing | 2026 |
| HLD Conveyancing Limited | Professional & scientific | 2022 |
| HM Car Sales Limited | Wholesale & retail | 2008 |
| Hm-Uk Catering Ltd | Hospitality | 2024 |
| HNW Paraplanning Ltd | Administrative & support | 2025 |
| Hobbs Electrical Contractors Limited | Construction | 2004 |
| Holcombe Trading Limited | Wholesale & retail | 2020 |
| Hollake Limited | Real estate | 2019 |
| Hollands Property Group Limited | Real estate | 2025 |
| Hollis Farriers Limited | Agriculture & fishing | 2001 |
| Holoraptor Limited | Information & communication | 2007 |
| Holwell Farm Ltd | Agriculture & fishing | 2019 |
| Hornblower Heights Open Space Management Limited | Households | 2023 |
| Horsdon Enterprises Limited | Hospitality | 1992 |
| Housing DNA Ltd | Information & communication | 2025 |
| Hub Enterprises Ltd | Hospitality | 2003 |
| Hugo Painters & Decorators Limited | Construction | 2022 |
| Humain TV Ltd | Information & communication | 2025 |
| HW Developments (SW) Limited | Real estate | 2025 |
| Hydraulic Platform Services Limited | Manufacturing | 2021 |
| Ibank Properties Limited | Extraterritorial | 2003 |
| IDA Research Ltd | Professional & scientific | 2025 |
| Idpc Ltd | Real estate | 2020 |
| Image Attire Ltd | Wholesale & retail | 2021 |
| Imei Ltd | Information & communication | 2013 |
| Implere Ltd | Other services | 2016 |
| Incorporated Exmoor Horn Sheep Breeders'Society, | Agriculture & fishing | 1906 |
| Independent Systems Integrators Limited | Information & communication | 2009 |