| Holbrook Advisory Associates Ltd | Education | 2024 |
| Holbrook Plumbing & Heating Ltd | Wholesale & retail | 2023 |
| Holdfast Survival Ltd | Manufacturing | 2016 |
| Hole KL Solutions Ltd | Other services | 2011 |
| Holidaycom Limited | Administrative & support | 2010 |
| Holley Autobodies Limited | Wholesale & retail | 2024 |
| Hollies Close Management Company Limited | Households | 1984 |
| Hollow Estates Limited | Real estate | 2021 |
| Hollow Park Veterinary Surgery Ltd | Professional & scientific | 2025 |
| Holly Bush Park Ltd | Hospitality | 2021 |
| Holly Farm Cottages Ltd | Hospitality | 2025 |
| Holly Farm Property Management Ltd | Real estate | 2025 |
| Holly Farm Swimming Pool Ltd | Arts & recreation | 2025 |
| Hollyman and Hollyman Limited | Health & social care | 2021 |
| Holmbush One LLP | | 2016 |
| Holne Chase Properties Limited | Real estate | 2011 |
| Holnest Park Equine Limited | Professional & scientific | 2014 |
| Holnicote Animal Services Ltd | Professional & scientific | 2026 |
| Holsworthy Management Services Limited | Professional & scientific | 1972 |
| Holtwell Investments Ltd | Financial services | 2024 |
| Holwell CIC | Arts & recreation | 2025 |
| Home Care Services 4U Ltd | Manufacturing | 2020 |
| Home Correct Limited | Construction | 2020 |
| Home Furniture Services Trust | Health & social care | 2004 |
| Home Heating and Plumbing Services Ltd | Construction | 2014 |
| Home of Maybird Ltd | Manufacturing | 2019 |
| Home Works Trading Limited | Wholesale & retail | 2025 |
| Homefield Financial Limited | Financial services | 2005 |
| Homefield Homes Limited | Real estate | 2025 |
| Homefront Design UK Limited | Professional & scientific | 2021 |
| Homes 2 Outstanding Ltd | Administrative & support | 2022 |
| Homes by Redesign Limited | Construction | 2017 |
| Homestead (South West) Limited | Administrative & support | 2018 |
| Homestead Property Sales and Lettings Ltd | Real estate | 2024 |
| Homesure Inspections Ltd | Professional & scientific | 2026 |
| Homewood (South West) Limited | Construction | 1998 |
| Home’S Renovations Limited | Construction | 2025 |
| Honetech Ltd | Information & communication | 2025 |
| Honey Source Limited | Wholesale & retail | 2024 |
| Honeybrook Capital Ltd | Financial services | 2018 |
| Honeycomb Holdings Somerset Ltd | Financial services | 2025 |
| Hook & Flanker Ltd | Wholesale & retail | 2025 |
| Hooked Books Ltd | Information & communication | 2021 |
| Hookley Consulting Ltd | Information & communication | 2014 |
| Hopcott Management Limited | Households | 1986 |
| Hope Corner Therapies Limited | Health & social care | 2025 |
| Hope Cove Life Boat | Other services | 2010 |
| Horizon Aerial Insight Ltd | Professional & scientific | 2012 |
| Horsecombe Investments Limited | Financial services | 2020 |
| Horsfields (Church Farm) 1984 Limited | Agriculture & fishing | 1984 |
| Hoskins & Vickery Limited | Agriculture & fishing | 2015 |
| Hoskins Farming Limited | Other services | 2023 |
| Hospital Friends (Taunton) Limited | Wholesale & retail | 1990 |
| Host Wellington Ltd | Real estate | 2023 |
| Hostbristol Limited | Extraterritorial | 2015 |
| Hotpod Yoga Taunton Ltd | Arts & recreation | 2023 |
| House Clearance GB Limited | Extraterritorial | 2012 |
| House Clearance UK Limited | Transport & logistics | 2004 |
| House Martins Property (Devon) Ltd | Households | 2016 |
| House of Eiledon Limited | Professional & scientific | 1995 |
| House of YEN Limited | Hospitality | 2020 |
| House of ZEE Ltd | Wholesale & retail | 2023 |
| HOW Hill Farm Shop Limited | Professional & scientific | 2020 |
| Howard Jones Music Limited | Information & communication | 1983 |
| Howard S.W. Limited | Administrative & support | 2002 |
| Howe Richards Limited | Professional & scientific | 2026 |
| Howe Springthorpe Limited | Financial services | 2026 |
| Howes Enterprises Limited | Extraterritorial | 2019 |
| Howletts Building Contractors Ltd | Construction | 2006 |
| HQ Wedmore Trading Limited | Real estate | 2024 |
| HR Assure Limited | Real estate | 2011 |
| HRB Veterinary Services Ltd | Professional & scientific | 2023 |
| HSI Aviation Solutions Limited | Education | 2024 |
| Hsoftware Solutions Limited | Information & communication | 2024 |
| HT Properties (SW) Ltd | Real estate | 2020 |
| HTC Haulage Limited | Transport & logistics | 2022 |
| HTC Holdings (Southwest) Limited | Real estate | 2022 |
| HTH Management Ltd | Real estate | 2018 |
| HTH Opco Ltd | Real estate | 2018 |
| Hubb Timber Frame Ltd | Construction | 2016 |
| Hudson Cosmedic Limited | Health & social care | 2003 |
| Hudson Way Limited | Real estate | 2004 |
| Hughenden House Management Company Limited | Households | 2015 |
| Huish Education Services Limited | Hospitality | 2020 |
| Human Performance Club Ltd | Arts & recreation | 2026 |
| Humanology & Beingology Limited | Other services | 2022 |
| Humberts Somerset Limited | Real estate | 2020 |
| Humewood Rand Ventures Ltd | Wholesale & retail | 2020 |
| Hummingbird Care Home LLP | | 2023 |
| Hummingbird Design Associates Ltd | Professional & scientific | 2011 |
| Hunik Limited | Real estate | 2018 |
| Hunt & Sons Limited | Administrative & support | 2001 |
| Hunt Medical Limited | Health & social care | 2022 |
| Hunter Associates Somerset Ltd | Health & social care | 2012 |
| Hunter Electrical SW Ltd | Construction | 2020 |
| Hunter's Moon UK Limited | Wholesale & retail | 2009 |
| Hunters Beers Ltd | Hospitality | 2024 |
| Hurley Properties Ltd | Real estate | 2024 |
| Hurlingham Limited | Administrative & support | 2016 |
| Hurman Enterprises Ltd. | Agriculture & fishing | 1997 |