| GS Classic Fords Ltd | Wholesale & retail | 2022 |
| GSH Rail Ltd | Construction | 2023 |
| GT Electrical NW Ltd | Construction | 2021 |
| GTA Laboratories Limited | Financial services | 2016 |
| GW Joinery Services Ltd | Construction | 2021 |
| Gwplumbing(Nw) Ltd | Construction | 2021 |
| GZY Finishing Ltd | Administrative & support | 2018 |
| H & L Self Storage Limited | Transport & logistics | 2017 |
| H E Payne Holdings Limited | Professional & scientific | 2021 |
| H E Payne Investments Limited | Professional & scientific | 2021 |
| H J Peers Solutions Ltd | Financial services | 2016 |
| H.D Valeting Limited | Other services | 2015 |
| H.I.Corp Limited | Financial services | 2021 |
| Haldon Counselling Ltd | Health & social care | 2023 |
| Hale Physical Therapy Clinic Limited | Arts & recreation | 2005 |
| Hall Court Construction Ltd | Construction | 2025 |
| Halliburton Electrical Limited | Construction | 2002 |
| Halton Brook Avenue 1959 Limited | Extraterritorial | 2014 |
| Halton Carers Centre Limited | Health & social care | 2008 |
| Halton Disability Partnership | Health & social care | 2010 |
| Halton Haven Hospice | Health & social care | 1989 |
| Halton Hearing Care Ltd | Wholesale & retail | 2021 |
| Halton Plaster and Rendering Ltd | Construction | 2019 |
| Halton Play Council Limited | Other services | 1997 |
| Halton Sound CIC | Information & communication | 2026 |
| Halton Support Ltd | Health & social care | 2023 |
| Halton Veterans Legion C.I.C. | Transport & logistics | 2020 |
| Hammer Fencing Limited | Construction | 2025 |
| Handy Jacks (UK) Limited | Wholesale & retail | 2002 |
| Hanson Property Rentals Limited | Real estate | 2022 |
| Hanson Property Services Limited | Administrative & support | 2008 |
| HAP - Hire Animal Portation Ltd | Transport & logistics | 2025 |
| Harding Corporation Limited | Professional & scientific | 2016 |
| Harding Joinery Ltd | Construction | 2015 |
| Harrison Technical Recruitment Ltd | Administrative & support | 2019 |
| Haslam Cleaning Services Limited | Administrative & support | 2015 |
| Hawkslease Finance Company Limited | Professional & scientific | 2002 |
| Hazel Jane Property Ltd | Real estate | 2022 |
| Hazeldine Ground Care Ltd | Agriculture & fishing | 2020 |
| Hazeldine's Home & Garden Limited | Administrative & support | 2015 |
| Hazlehurst Craft Studios Community Interest Company | Arts & recreation | 2011 |
| HCM Jetters Ltd | Professional & scientific | 2020 |
| Hcrg Care Community Services Ltd | Health & social care | 2011 |
| Hcrg Care Coventry LLP | | 2008 |
| Hcrg Care East Riding LLP | | 2006 |
| Hcrg Care Group Holdings Ltd | Professional & scientific | 1996 |
| Hcrg Care Ltd | Health & social care | 2005 |
| Hcrg Care Private Ltd | Health & social care | 2017 |
| Hcrg Care Provider Services Ltd | Health & social care | 2011 |
| Hcrg Care Reading LLP | | 2008 |
| Hcrg Care Services Ltd | Health & social care | 2011 |
| Hcrg Care Vertis LLP | | 2007 |
| Hdjco Ltd | Transport & logistics | 2026 |
| Health IT Implementations Ltd | Information & communication | 2014 |
| Healthifoods Limited | Manufacturing | 1986 |
| Healthilife (Holdings) Limited | Manufacturing | 1986 |
| Heath FM Limited | Administrative & support | 2018 |
| Heather Elizabeth Photography Ltd | Professional & scientific | 2021 |
| Heathrow Cargo Handling Limited | Transport & logistics | 1995 |
| Heatsync North West Limited | Construction | 2023 |
| Heaunique Limited | Transport & logistics | 2017 |
| Hebron Consultancy Services Limited | Professional & scientific | 2013 |
| Heesom Construction Services Ltd | Professional & scientific | 2015 |
| Helisky Ltd | Transport & logistics | 2025 |
| Helmark Management LLP | | 2013 |
| Helsby and Longden Holdings Limited | Professional & scientific | 2005 |
| Helsby and Longden Limited | Transport & logistics | 1941 |
| Helsby Car Wash Ltd | Administrative & support | 2023 |
| Helsby Investment Company Limited | Real estate | 2020 |
| Hesley Media Ltd | Arts & recreation | 2016 |
| Hewgt Limited | Real estate | 2025 |
| Hexagon Recruitment Services Limited | Administrative & support | 1993 |
| HEY Projects Ltd | Manufacturing | 2013 |
| Hgcchef Ltd | Hospitality | 2019 |
| High Street Store Ltd | Wholesale & retail | 2022 |
| Higher Close Properties Limited | Real estate | 2021 |
| Highton Services Northwest Limited | Other services | 2025 |
| Highways Traffic Management Ltd | Construction | 2020 |
| Highwood Consultants Limited | Manufacturing | 1995 |
| Hills Driver Training Limited | Extraterritorial | 2012 |
| Hindsconnect Limited | Administrative & support | 2025 |
| Hire Your Site Limited | Information & communication | 2023 |
| Hiwa Barber Ltd | Other services | 2019 |
| Hiwa's Barber 2 Ltd | Other services | 2021 |
| HJJ Creative Ltd | Arts & recreation | 2024 |
| HJU Construction Ltd | Construction | 2025 |
| HK Transporter Limited | Transport & logistics | 2021 |
| HM Properties NW Ltd | Real estate | 2023 |
| HNC Group Ltd | Wholesale & retail | 2023 |
| HOC ET Illud Ltd | Professional & scientific | 2026 |
| Hodge Inspection Services Ltd | Professional & scientific | 2020 |
| Hodgkins Joinery and Construction Ltd | Manufacturing | 2021 |
| Holyhead Shipping Limited | Transport & logistics | 2017 |
| Home Electric Automation Limited | Extraterritorial | 2016 |
| HOME2ME Properties Ltd | Real estate | 2025 |
| Honey POT Cafe Limited | Hospitality | 2025 |
| HOP Hing Limited | Hospitality | 2025 |
| Hope Corner | Education | 2010 |
| Hope Draughting Ltd. | Extraterritorial | 1996 |
| Horizon 2026 Limited | Information & communication | 2008 |