| Heron Legal Services Ltd | Professional & scientific | 2015 |
| Hewitt Building Contractors Ltd | Construction | 2019 |
| Hexagon Design & Build Limited | Construction | 2015 |
| Heyes Engineering Ltd | Manufacturing | 2021 |
| HF Bespoke Carpentry Ltd | Manufacturing | 2025 |
| HGM Limited | Administrative & support | 2002 |
| HGS (Stroud) Limited | Construction | 2024 |
| Hicks Heating & Plumbing Limited | Construction | 2004 |
| Hidcote Advisory Ltd | Professional & scientific | 2023 |
| Hidden Notes Ltd | Wholesale & retail | 2021 |
| High Quality Solutions Limited | Information & communication | 2009 |
| High View Lodge Management Company Limited | Households | 2020 |
| Highborder Care Home Gloucestershire Limited | Health & social care | 2024 |
| Higher Quality Management Limited | Education | 2014 |
| Highest Alignment Ltd | Health & social care | 2025 |
| Highway 46 Ltd | Information & communication | 2019 |
| Hill Court Stonehouse Limited | Real estate | 2005 |
| Hill House Retreats CIC | Real estate | 2022 |
| Hillgrove House Management Company Limited | Households | 2018 |
| Hillier's Bacon Curing Company Limited | | 1865 |
| Hilly Orchard Management Limited | Households | 2003 |
| HJM Carpentry & Construction Ltd | Construction | 2025 |
| HK Stroud Limited | Hospitality | 2019 |
| HM Scaffolding Limited | Construction | 2000 |
| HMC Sports Cars Limited | Wholesale & retail | 2022 |
| Hobbs Barton Ltd | Real estate | 2020 |
| Holds Haus Ltd | Wholesale & retail | 2025 |
| Hole Agency Limited | Arts & recreation | 2007 |
| Hollingham Investments Ltd | Construction | 2017 |
| Holly Tree House (Ebley) Management Limited | Real estate | 1984 |
| Holyoake Training Limited | Education | 2009 |
| Home A-Loan Limited | Financial services | 2021 |
| Home Helpers Oxford Ltd | Health & social care | 2023 |
| Home Helpers Oxford Office Ltd | Health & social care | 2025 |
| Honey Badger Services Limited | Real estate | 2019 |
| Honeytrap Womenswear Limited | Wholesale & retail | 2016 |
| Hope Mill Studios Ltd | Real estate | 2025 |
| Hope Mills Business Centre Limited | Professional & scientific | 1998 |
| Hordern-Richmond Aircraft Limited | Manufacturing | 2015 |
| Horse Chestnut Holdings Ltd | Hospitality | 2024 |
| Horselight Limited | Wholesale & retail | 2020 |
| Hot Headz Limited | Manufacturing | 1970 |
| Hot Horse Shower Ltd | Wholesale & retail | 2012 |
| Hourmode Ltd | Wholesale & retail | 2025 |
| House of Coco Aesthetics Beauty Laser Ltd | Other services | 2024 |
| House of Desmond Ltd | Wholesale & retail | 2025 |
| House of Goblin Limited | Manufacturing | 2025 |
| Houseproud Construction Limited | Construction | 2005 |
| Housing LIN Enterprises Ltd | Professional & scientific | 2015 |
| Housing LIN Ltd | Information & communication | 2010 |
| Howard Cole Limited | Professional & scientific | 2020 |
| Howard Tenens Development Limited | Real estate | 2017 |
| Howard Tenens Limited | Transport & logistics | 2008 |
| Howard Tenens Logistics Limited | Extraterritorial | 2017 |
| Howard Tenens Power (HTP) Limited | Energy | 2022 |
| Howell & Moor Ltd | Construction | 2006 |
| HRE W Solar Limited | Energy | 2016 |
| HRE Willow Limited | Energy | 2011 |
| Hristo's Kitchen Ltd | Hospitality | 2019 |
| HSF Recruitment Ltd | Administrative & support | 2023 |
| Hub Business Solutions Ltd | Information & communication | 2006 |
| Hub in a PUB Ltd | Hospitality | 2019 |
| Hudd Holdings Limited | Financial services | 2026 |
| Hudson Rose Services (Bristol) Ltd | Real estate | 2024 |
| Hudson Rose Services Cheltenham Ltd | Financial services | 2022 |
| Hudson Rose Services Cirencester Ltd | Financial services | 2021 |
| Hudson Rose Services Ltd | Financial services | 2017 |
| Human Landscape Ltd | Education | 2010 |
| Humphries & Begg Company Ltd | Wholesale & retail | 2025 |
| Humphries and Begg LLP | | 2020 |
| Hurn Enterprises Limited | Information & communication | 2023 |
| Hushy Ltd | Wholesale & retail | 2025 |
| HUT22 Ltd | Professional & scientific | 2022 |
| Hutchinson Management Consultants Ltd | Professional & scientific | 2007 |
| HWT Consulting Limited | Professional & scientific | 2019 |
| Hyde & Gallagher Limited | Manufacturing | 2017 |
| Hyde and Hare Limited | Wholesale & retail | 2016 |
| Hykaj Ltd | Hospitality | 2016 |
| I DIG Local Limited | Wholesale & retail | 2012 |
| IAN Bayliss Studio Limited | Professional & scientific | 2013 |
| IAN Ridler Electrical Limited | Construction | 2002 |
| Ibis Computer Services Limited | Professional & scientific | 1995 |
| Icon Books Ltd. | Information & communication | 1991 |
| ID Computing Limited | Information & communication | 2003 |
| Ideas Consulting Ltd | Transport & logistics | 2025 |
| Idelogy Ltd | Information & communication | 2023 |
| Idig 3D Printing Ltd | Wholesale & retail | 2014 |
| Idris Ltd | Manufacturing | 2023 |
| Ifeel Method Qualification Ltd | Education | 2025 |
| Ignition Gloucestershire | Arts & recreation | 2006 |
| IL Kitchen Coach Limited | Administrative & support | 2025 |
| Illusion Software Ltd | Information & communication | 2025 |
| Illustrate Imaging Ltd | Professional & scientific | 2019 |
| Imaginary MAN Productions Ltd | Information & communication | 2022 |
| Imagine Therapeutic Limited | Arts & recreation | 2023 |
| Impact Hire Group Ltd | Administrative & support | 2021 |
| Imperium Computing Consultants Limited | Information & communication | 1988 |
| Implant & Ceramic Centre Limited | Health & social care | 2004 |
| In-Light Limited | Education | 2003 |
| Inardua Consulting Limited | Professional & scientific | 2018 |