| Harlan Electrical Ltd | Construction | 2022 |
| Harlise Limited | Hospitality | 2024 |
| Harlow Developments NW Ltd | Real estate | 2024 |
| Harmony Wedding Rings Limited | Extraterritorial | 2014 |
| Harpers Fish & Chips Ltd | Hospitality | 2025 |
| Harpers PROPERTY25 Limited | Hospitality | 2024 |
| Harrison Investments LLP | | 2013 |
| Harrison Social Consultancy Limited | Health & social care | 2016 |
| Harrowby Developments Limited | Households | 2024 |
| Harrysekhala Limited | Health & social care | 2016 |
| Hart Street Property Management Limited | Real estate | 2004 |
| Hartley MEE Ltd | Other services | 2024 |
| Haruns Southport Ltd | Hospitality | 2022 |
| Haruto & Ryuu Group Limited | Professional & scientific | 2026 |
| Harvey Fashion Accessories Ltd | Wholesale & retail | 2026 |
| Harvey Martins Ltd | Wholesale & retail | 2024 |
| Haslad Management Ltd | Professional & scientific | 2025 |
| Hatfield Accountancy Services Limited | Professional & scientific | 2013 |
| Hatter's Digital Agency Ltd | Professional & scientific | 2020 |
| Haudouken Ltd | Other services | 2019 |
| Haven Couture Limited | Wholesale & retail | 2026 |
| Haversham Estates Limited | Real estate | 1999 |
| Having a Ball Limited | Hospitality | 2013 |
| Hawk Group Consultants Ltd | Professional & scientific | 2020 |
| Hawk-I Solutions Ltd | Construction | 2019 |
| Hawkshead Estates Ltd | Real estate | 2017 |
| Hawksview Joinery & Development Ltd | Construction | 2024 |
| Hawshaw Subsea Ltd | Professional & scientific | 2024 |
| Hawta Limited | Health & social care | 2015 |
| Hayes Family Ltd | Financial services | 2018 |
| Hayley Frances Limited | Other services | 2016 |
| Hayley Rose Limited | Administrative & support | 2005 |
| Hayley Trevalyan Limited | Health & social care | 2020 |
| Haymarket Lodge (Southport) Limited | Households | 1988 |
| Haynes Enterprises Ltd | Wholesale & retail | 2022 |
| Hazel Court Ormskirk Management Company Limited | Households | 2021 |
| Hazeline Limited | Construction | 1982 |
| Hbuyuk Limited | Real estate | 2026 |
| HCL Signs Ltd | Construction | 2019 |
| Heady Shake Ltd | Manufacturing | 2025 |
| Health & Safety Management & Training Limited | Professional & scientific | 2003 |
| Heat Sourced Ltd | Wholesale & retail | 2022 |
| Heathfields (Burscough) Management Company Limited | Households | 2003 |
| Heavy Records Ltd | Arts & recreation | 2019 |
| Hedgehog House Property Limited | Real estate | 2025 |
| Hegarty Roofing and Building Ltd | Construction | 2023 |
| Helen J Guest Accounting Ltd | Professional & scientific | 2019 |
| Helen Marie VIP Limited | Administrative & support | 2021 |
| Helen Seaton Hairdressing Ltd | Other services | 2025 |
| Helier Risks Group Ltd | Professional & scientific | 2025 |
| Hello Joy Traders Ltd | Wholesale & retail | 2021 |
| Helm Services Limited | Administrative & support | 2015 |
| Heln Ltd | Information & communication | 2026 |
| Help Handz C.I.C. | Health & social care | 2014 |
| HEN Glan House Ltd | Real estate | 2017 |
| Henderson Lodge Limited | Households | 1982 |
| Henley Court (Southport) Limited | Households | 1974 |
| Henry Dean Homes Ltd | Construction | 2022 |
| Henson Foods Limited | Extraterritorial | 1989 |
| HER Own Recordings Limited | Information & communication | 2025 |
| Heradox Ltd | Wholesale & retail | 2025 |
| Here WE HOE Again Limited | Administrative & support | 2017 |
| Heritage Building Solutions Limited | Construction | 2003 |
| Heritage Butchers Birkdale Ltd | Wholesale & retail | 2025 |
| Heritage Feeds Limited | Construction | 2004 |
| Heritage Holdings Co. Ltd | Financial services | 2018 |
| Heritage Marketing Group Ltd | Real estate | 2024 |
| Heritage Safety Services Ltd | Information & communication | 2026 |
| Hesketh Grove Management Limited | Real estate | 2021 |
| Hesketh Links Court Residents Association Limited | Households | 1973 |
| Hesketh Manor Management Limited | Real estate | 1991 |
| Hesketh Park Mansions RTM Company Limited | Households | 2010 |
| Hesketh Sunbeds Limited | Other services | 2024 |
| Hesketh View Management Limited | Households | 1971 |
| Hess Southport Ltd | Hospitality | 2023 |
| Hestia Rose Estates Limited | Real estate | 2018 |
| Hewitt Alarms & Electrical Contractors Limited | Construction | 2014 |
| Hewitt Heating Limited | Construction | 2015 |
| Hewitts Properties Limited | Real estate | 2010 |
| HEX Brewing Company Ltd | Manufacturing | 2022 |
| Hexahive Ltd | Construction | 2025 |
| HEY Burg Ltd | Hospitality | 2026 |
| Heys Management Limited(The) | Households | 1978 |
| Hibbs Plant Nursery Limited | Wholesale & retail | 2026 |
| High in the Sky Limited | Administrative & support | 2016 |
| High View Aerial and Rope Access Solutions Ltd. | Mining & quarrying | 2011 |
| Higher Walton Glass Limited | Construction | 1988 |
| Highgate Residential Limited | Real estate | 2019 |
| Highkata Ltd | Wholesale & retail | 2022 |
| Highlands Leisure UK Ltd | Construction | 2025 |
| Highroad Car Parts & Accessories Limited | Wholesale & retail | 2026 |
| HII Estates Ltd | Financial services | 2024 |
| Hill Mechanical Services Limited | Construction | 2025 |
| Hill Plumbing and Maintenance Limited | Construction | 2017 |
| Hill Projects Limited | Real estate | 2023 |
| Hill Properties (NW) Limited | Real estate | 2015 |
| Hillbark Management Services Ltd | Real estate | 2022 |
| Hillock Farm Pullets Ltd | Agriculture & fishing | 2020 |
| Hillpark Consulting Limited | Health & social care | 2023 |
| Hillsford Consulting and Training Ltd | Professional & scientific | 2024 |