| Hetling Clinical Systems Ltd | Manufacturing | 2026 |
| Hetreed Ross Architects Ltd | Professional & scientific | 2011 |
| HEY Chef Pasta Ltd | Hospitality | 2026 |
| Heywood Holidays LLP | | 2010 |
| HFG Travel Ltd | Administrative & support | 2023 |
| HG Ventures Ltd | Wholesale & retail | 2000 |
| HGA Associates Ltd | Financial services | 2023 |
| Hgem Ltd | Professional & scientific | 2003 |
| HI Pets Ltd | Wholesale & retail | 2019 |
| Hi-Tech Scientific Ltd | Professional & scientific | 2005 |
| Hicks Field Management Company Limited | Households | 2019 |
| Hidden Woods Limited | Administrative & support | 2010 |
| Hide of Bath Inc Limited | Wholesale & retail | 2025 |
| Higgin Estates Ltd | Real estate | 2018 |
| High Road Events Ltd | Hospitality | 2019 |
| Highfield Bath Limited | Extraterritorial | 2025 |
| Highfield Financial Consulting Limited | Professional & scientific | 2018 |
| Highgate Imaging Ltd | Health & social care | 2025 |
| Hikaru Coaching Ltd | Health & social care | 2021 |
| Hill Farm (Batheaston) Management Company Limited | Households | 2021 |
| Hill House (Bath) Management Limited | Households | 1982 |
| Hills Development LLP | | 2009 |
| Hills Developments Limited | Construction | 1986 |
| Hills Holdings Limited | Professional & scientific | 1987 |
| Hireq Talent Ltd | Administrative & support | 2025 |
| Hiron Properties Limited | Real estate | 2022 |
| HIT the Nail Limited | Construction | 2014 |
| Hitch UP Hire Ltd | Administrative & support | 2023 |
| Hitchen Hatch Management Company Limited | Households | 2007 |
| HIX Digital Ltd | Information & communication | 2013 |
| HIX Online Limited | Information & communication | 2019 |
| HJ Paradise & Sons Limited | Construction | 1998 |
| HJR Property Group Limited | Real estate | 2025 |
| HK Southwest Ltd | Other services | 2024 |
| HKC Bath Limited | Hospitality | 2024 |
| HKC Consulting Limited | Professional & scientific | 2026 |
| HMG Law LLP | | 2007 |
| HMP Bath Ltd | Real estate | 2019 |
| HMT Storehouse Ltd | Wholesale & retail | 2025 |
| HN Development Limited | Real estate | 2006 |
| Hoadley Financial Planning Limited | Financial services | 2009 |
| Hoare Consulting Limited | Professional & scientific | 2017 |
| HOB Holdings Inc Ltd | Financial services | 2025 |
| Hobbard Developments Ltd | Construction | 2015 |
| Hodgetts Farming Limited | Agriculture & fishing | 2014 |
| Hogarth and Partners Ltd | Real estate | 2024 |
| Hogshill Limited | Information & communication | 2004 |
| Hogwood Huts Ltd | Hospitality | 2022 |
| Hoist App Ltd | Information & communication | 2024 |
| Holbrook Trading Limited | Health & social care | 2009 |
| Holburne Park Management Company Limited | Households | 2016 |
| Holburne Partners Ltd | Financial services | 2021 |
| Holburne Place Management Company Ltd | Households | 2014 |
| Holburne Trading Company Ltd | Wholesale & retail | 2009 |
| Holden Holdings Limited | Financial services | 2016 |
| Holiday Rentals Bath Ltd | Hospitality | 2023 |
| Holidays & Cruises Travel Experts Ltd | Administrative & support | 2020 |
| Holistic Partners Ltd | Information & communication | 2021 |
| Hollacombe Farm Holdings Ltd | Real estate | 2011 |
| Holler Technologies Limited | Information & communication | 2026 |
| Holley Hextall Limited | Manufacturing | 2017 |
| Holliday Design and Consultancy Limited | Professional & scientific | 2017 |
| Holly Gavin Ltd | Wholesale & retail | 2012 |
| Holly Tree Yoga Collective Limited | Education | 2025 |
| Holwest Limited | Professional & scientific | 1993 |
| Holy Trinity Trust | Real estate | 2009 |
| Home Cover Protect Ltd | Other services | 2020 |
| Homefront Interiors Ltd | Wholesale & retail | 2013 |
| Homelets of Bath Limited | Real estate | 2006 |
| Homeli Ltd | Households | 2024 |
| Homeoat Limited | Real estate | 1985 |
| Homes Hosted Limited | Real estate | 2024 |
| Homes of Bath Limited | Real estate | 2017 |
| Homewood Park Limited | Hospitality | 2018 |
| Hondo (Bath) Ltd | Wholesale & retail | 2023 |
| Hondo Oriental 888 Limited | Hospitality | 2022 |
| Honest Oils Limited | Manufacturing | 2025 |
| Honest Studio Limited | Professional & scientific | 2017 |
| Honey Bidco Limited | Financial services | 2018 |
| Honey Café (Bath) Limited | Hospitality | 2019 |
| Honey Willow Ltd | Manufacturing | 2016 |
| Honeysuckle Flower Co. Limited | Extraterritorial | 2014 |
| Honu AI Limited | Information & communication | 2021 |
| Hookside Ltd | Agriculture & fishing | 2019 |
| Hoopers ELM Farms Limited | Agriculture & fishing | 1977 |
| Hope Cote Lodge Management Company Limited | Households | 1986 |
| Hope Place RTM Company Limited | Households | 2026 |
| Hopkins Project Management Limited | Hospitality | 2019 |
| Hopscotch (Bath) Limited | Education | 2008 |
| Hopscotch Property (Bath) Limited | Real estate | 2019 |
| Hopwood's Holistic Massage Therapies Limited | Other services | 2026 |
| Horizon Allies Ltd | Wholesale & retail | 2026 |
| Horizon Scandal Fund | Professional & scientific | 2021 |
| Horsecombe Projects Ltd | Professional & scientific | 2023 |
| Horsecombe Vale Conservation Limited | Agriculture & fishing | 2011 |
| Horstman Defence Systems Limited | Manufacturing | 1980 |
| Horstman Holdings Limited | Professional & scientific | 2014 |
| Horton Maison Ltd | Professional & scientific | 2026 |
| Hortus Forma Limited | Administrative & support | 2015 |
| Horwood Coombe Inspire Ltd | Health & social care | 2019 |