| Highway Star Limited | Real estate | 2006 |
| Highways Adjusting Limited | Financial services | 2013 |
| Hilbre Estates Group Limited | Financial services | 2020 |
| Hilbre Estates Limited | Administrative & support | 2000 |
| Hilbre View Management Company Ltd | Households | 2010 |
| Hill Garth Homes Limited | Real estate | 2018 |
| Hill Garth Investments Limited | Financial services | 2018 |
| Hill House on Stage Ltd | Arts & recreation | 2026 |
| Hillcrest & Green Limited | Professional & scientific | 2020 |
| Hillenbrand UK Holdings Limited | Financial services | 2023 |
| Hilliard Management Services Limited | Construction | 1989 |
| Hilliards Chester Limited | Financial services | 2022 |
| Hills & Glens Ltd | Wholesale & retail | 2021 |
| Hillyer Mckeown LLP | | 2009 |
| Hilton North Associates Limited | Information & communication | 2024 |
| Hina & Jafri Consultancy Limited | Health & social care | 2012 |
| Hinchliffe Corporate Holdings UK Limited | Construction | 2025 |
| Hinton Developments 1 Ltd | Real estate | 2023 |
| Hinton Developments 2 Ltd | Real estate | 2023 |
| Hinton Payne Electrical Limited | Construction | 2025 |
| Hinton Payne Properties Limited | Real estate | 2018 |
| Hinton-Deevex Limited | Manufacturing | 1962 |
| Hipkiss Electrical Contracting Ltd | Construction | 2018 |
| Hird IT Limited | Information & communication | 2018 |
| HIS Story Traditional Barber Ltd | Other services | 2022 |
| Hischow Ltd | Hospitality | 2025 |
| Hispi Limited | Hospitality | 2016 |
| Histfest Ltd | Administrative & support | 2018 |
| Hitchford Homes Limited | Construction | 2017 |
| Hitchmough Safety Consultancy Ltd | Professional & scientific | 2022 |
| Hive Business Solutions Ltd | Administrative & support | 2020 |
| Hiwda Limited | Other services | 2019 |
| Hiya, Y'Alright Ltd | Other services | 2024 |
| HJ Consulting Limited | Professional & scientific | 2024 |
| HJB Marketing Limited | Professional & scientific | 2023 |
| Hjde Ltd | Professional & scientific | 2024 |
| Hk&Rl Ltd | Households | 2025 |
| HKM Catering Ltd | Hospitality | 2025 |
| Hkmdigital Limited | Information & communication | 2024 |
| HKS Plant Services Ltd | Professional & scientific | 2023 |
| HL Campers Ltd | Wholesale & retail | 2020 |
| HL Properties Chester Limited | Real estate | 2020 |
| HLJ Property Ltd | Real estate | 2026 |
| HM Cosec Limited | Financial services | 2021 |
| HM Group Services Limited | Professional & scientific | 2019 |
| HM Legal Services Limited | Professional & scientific | 2016 |
| HM Ob-Gyn Ltd | Health & social care | 2026 |
| HMG Risk and Resilience Ltd | Financial services | 2018 |
| HMK PUB Limited | Hospitality | 2008 |
| HMO Property Invest Limited | Construction | 2019 |
| Hnrs Housing Limited | Real estate | 2003 |
| Hobbs Construction and Renovations Ltd | Construction | 2024 |
| Hockenhull Hall Estates Limited | Real estate | 1949 |
| Hockenhull Hall Farms Limited | Agriculture & fishing | 1962 |
| Hockenhull Holdings Limited | Financial services | 2019 |
| Hockenhull Turkeys Ltd | Agriculture & fishing | 1990 |
| Hodkinson Mallinson Limited | Professional & scientific | 2003 |
| Hodkinson-Miller Ltd | Professional & scientific | 2018 |
| Hodson Property Solutions Ltd | Real estate | 2025 |
| Hoffcoffi CIC | Health & social care | 2021 |
| Holbache Court Management Limited | Households | 2007 |
| Holiday Gems Limited | Administrative & support | 2006 |
| Holidays DOT COM Limited | Administrative & support | 2011 |
| Holliday Enterprises Limited | Other services | 2005 |
| Hollins Homes (Chester) Limited | Real estate | 2022 |
| Holm Oak RTM Company Limited | Households | 2019 |
| Holmes Electrical & Properties Ltd | Construction | 2024 |
| Holt Marketing Ltd | Professional & scientific | 2023 |
| Holwood Properties Limited | Hospitality | 1963 |
| Holyhead Advisors Ltd | Professional & scientific | 2024 |
| Holyhead LL65 Management Company Limited | Households | 2014 |
| Home & Garden Products Ltd | Wholesale & retail | 2015 |
| Home Buddy Care Ltd | Health & social care | 2020 |
| Home Campers Ltd | Wholesale & retail | 2024 |
| Home Farm (ST Asaph) Limited | Hospitality | 2020 |
| Home Pathway Ltd | Households | 2017 |
| Home Plumbing Services Ltd | Construction | 2022 |
| Home Sett Property Limited | Transport & logistics | 2018 |
| Home Time Roofing Ltd | Construction | 2026 |
| Home-Heat (Chester) Limited | Construction | 2011 |
| Home-Heat (GAS and OIL) Solutions Ltd | Construction | 2019 |
| Homeland Courier Services Limited | Transport & logistics | 2006 |
| Homelogr Ltd | Information & communication | 2017 |
| Homepro Ltd. | Financial services | 1999 |
| Homeside Properties Ltd | Real estate | 2025 |
| Homestyle Building Company Limited | Construction | 2003 |
| Honey ANT Limited | Administrative & support | 2006 |
| Honey Dear Limited | Real estate | 2018 |
| Honeybuzz Limited | Professional & scientific | 2015 |
| Honeyfields Smile Ltd | Health & social care | 2022 |
| Honeyman Limited | Hospitality | 2021 |
| Honeypot Hideaways Ltd | Hospitality | 2021 |
| Honeysticks Europe Ltd | Wholesale & retail | 2016 |
| Honk IF You'Re Horny Ltd | Arts & recreation | 2022 |
| Hoofield Management Company Limited | Extraterritorial | 2015 |
| Hoole Bridge Building Supplies Limited | Wholesale & retail | 1991 |
| Hoole Bridge Homes Limited | Construction | 2021 |
| Hoole Bridge Properties Limited | Real estate | 2001 |
| Hoole Community Development Trust | Arts & recreation | 2012 |
| Hoole Court Limited | Households | 1989 |