| Hillfield Court Management Co. Limited | Households | 1979 |
| Hillray Biltong and South African Products Ltd | Other services | 2017 |
| Hillside Delivery Service Holdings Limited | Professional & scientific | 2016 |
| Hillside Delivery Service Limited | Transport & logistics | 2005 |
| Hillview 2013 Limited | Administrative & support | 2013 |
| Hinds Plumbing and Heating Ltd | Construction | 2025 |
| Hine Marketing Ltd | Extraterritorial | 2008 |
| Hing TAI (Brockworth) Ltd | Hospitality | 2026 |
| Hing's Takeaway Limited | Hospitality | 2014 |
| HIP 3K Limited | Professional & scientific | 2022 |
| Hippo Surprise Ltd | Financial services | 2015 |
| Hira Baram Limited | Hospitality | 2024 |
| Hiram Developments Limited | Hospitality | 2016 |
| Historic, Classic and Motorsport Ltd | Wholesale & retail | 2022 |
| Hive & Hollow Ltd | Manufacturing | 2025 |
| Hive Property Maintenance Limited | Administrative & support | 2022 |
| HK Cars Gloucester Limited | Transport & logistics | 2022 |
| HKB Limited | Real estate | 2022 |
| Hkbsb Limited | Health & social care | 2020 |
| HL to the Moon Ltd | Wholesale & retail | 2026 |
| Hlgw Films Ltd | Professional & scientific | 2023 |
| HM Commerce Limited | Wholesale & retail | 2020 |
| HM Tech Engineering Ltd | Manufacturing | 2016 |
| HMB Syndicate Ltd | Professional & scientific | 2025 |
| Hmbs Services Ltd | Other services | 2018 |
| HNM Real Properties Ltd | Real estate | 2024 |
| Hobbs Contract Consultancy Ltd | Construction | 2015 |
| Hobson & Weaver Ltd | Construction | 2025 |
| Hocking Building Ltd | Construction | 2025 |
| Hogben Property Development Ltd | Construction | 2025 |
| Holcombe Associates Ltd | Professional & scientific | 2014 |
| Holden Consulting Ltd | Information & communication | 2023 |
| Holder Construction Gloucester Ltd | Construction | 2022 |
| Holding Tight Limited | Financial services | 2025 |
| Hole G Limited | Administrative & support | 2015 |
| Holiday Lets Gloucester Ltd | Hospitality | 2019 |
| Holiday Reservations UK Limited | Hospitality | 2020 |
| Holly Haven Lettings Ltd | Real estate | 2025 |
| Hollychain 10 Limited | Real estate | 2006 |
| Hollyoake Properties Limited | Real estate | 2016 |
| Holmer Land Limited | Construction | 2023 |
| Holmewood Developments Ltd | Real estate | 2022 |
| Holmewood Property Investments Ltd | Real estate | 2022 |
| Holmleigh Court Management Limited | Households | 2006 |
| Holmleigh Decorators Limited | Construction | 2013 |
| Holmwood Living Limited | Real estate | 2024 |
| Holywell Conservation Limited | Construction | 2003 |
| Hom.Plumbing & Heating Ltd | Construction | 2022 |
| Home Alarms Ltd | Administrative & support | 2025 |
| Home Clean Home Pro Ltd | Administrative & support | 2023 |
| Home Helpers - Commercial & Domestic Cleaners Ltd | Administrative & support | 2023 |
| Home Modular Ltd | Wholesale & retail | 2026 |
| Home Styled Limited | Wholesale & retail | 2022 |
| Home Unveiled Limited | Professional & scientific | 2026 |
| HOME2AIRPORT Ltd | Transport & logistics | 2024 |
| HOME2GO Transport Ltd | Transport & logistics | 2025 |
| Homebird Plants Ltd | Wholesale & retail | 2023 |
| Homecall (Glos) Limited | Real estate | 2016 |
| Homecall Building Solutions Limited | Construction | 2009 |
| Homend Management Limited | Households | 2007 |
| Hometree Gloucester Ltd | Real estate | 2014 |
| Homme House Horse Trials Limited | Arts & recreation | 2012 |
| Honesty Works Ltd | Professional & scientific | 2025 |
| Honour Amongst Thieves Ltd | Wholesale & retail | 2026 |
| Hooey Limited | Professional & scientific | 2023 |
| Hook & Loop Collective CIC | Arts & recreation | 2022 |
| Hooks Farm Ltd | Agriculture & fishing | 2026 |
| Hooor Ltd | Wholesale & retail | 2025 |
| Hoopers Property Refurbishment Limited | Real estate | 2005 |
| Hopcop Productions Limited | Other services | 2024 |
| Hope Barn Catering Ltd | Hospitality | 2024 |
| Hope Construction Limited | Real estate | 2020 |
| Hopeland Healthcare Limited | Health & social care | 2018 |
| Hopton Court Tewkesbury Limited | Households | 1991 |
| Hopton Interiors Limited | Other services | 2017 |
| Horizon Care Group Ltd | Health & social care | 2025 |
| Horizon Cohousing Gloucestershire Limited | Real estate | 2020 |
| Horizon Hosting Limited | Information & communication | 2021 |
| Horizon Tide Developments Ltd | Real estate | 2025 |
| Horizont UK Limited | Wholesale & retail | 1998 |
| Horsemanship Training Limited | Education | 2024 |
| Horsepower Events Limited | Hospitality | 2023 |
| Hose Technik Ltd | Extraterritorial | 2010 |
| Hoshita Consultancy Limited | Administrative & support | 2010 |
| Hoskins Keys Ltd | Real estate | 2025 |
| Host Limited | Professional & scientific | 1974 |
| Hot & Spicy Caribbean Ltd | Hospitality | 2014 |
| Hoults and Bence Roofing Ltd | Construction | 2019 |
| House Financial Ltd | Financial services | 2025 |
| House of Charulata Limited | Wholesale & retail | 2025 |
| House of Envy Beauty Ltd | Extraterritorial | 2019 |
| House of Envy Longford Ltd | Other services | 2025 |
| House of Gracious Ltd | Wholesale & retail | 2019 |
| House of Robinson Ltd | Professional & scientific | 2023 |
| House of Tweed Limited | Wholesale & retail | 2016 |
| House of Zanzi Limited | Manufacturing | 2025 |
| Howatson Spain Limited | Real estate | 2014 |
| Howell Contractors Ltd | Construction | 2014 |
| HP Aesthetics Ltd | Other services | 2019 |
| HP Garage Ltd | Wholesale & retail | 2019 |