| Hadji Audio Limited | Information & communication | 2022 |
| Hair Boutique Education Limited | Other services | 2017 |
| Hair Parade Ltd | Extraterritorial | 2012 |
| Hale Joinery Limited | Construction | 2026 |
| Hall C & P Ltd | Health & social care | 2008 |
| Halliwell & Company Accountants Limited | Professional & scientific | 2002 |
| Halo Dance and Fitness Limited | Arts & recreation | 2016 |
| Halstead Property Services Ltd | Administrative & support | 2016 |
| HAMERS360FITNESS Ltd | Arts & recreation | 2021 |
| Hamersfitness Ltd | Wholesale & retail | 2021 |
| Hannah Jamie Social Enterprise Strategist Ltd | Administrative & support | 2022 |
| Hannah N Co Ltd | Hospitality | 2025 |
| Hannah Rogers Ltd | Other services | 2025 |
| Happy Dog Music Ltd | Arts & recreation | 2022 |
| Happy Tracks Ltd | Administrative & support | 2021 |
| Harberton Consulting Limited | Professional & scientific | 2025 |
| Hargreaves Stonemasonry Ltd | Manufacturing | 2026 |
| Harlden Limited | Professional & scientific | 2015 |
| Harrison SAW and Tool Limited | Manufacturing | 1985 |
| Harrison Saws Limited Liability Partnership | | 2005 |
| Harthill Farming Limited | Agriculture & fishing | 2025 |
| Harthill Groundwork Ltd | Water & waste | 2025 |
| Hartley Planning & Development Associates Limited | Professional & scientific | 2006 |
| Harvey Wilson Ltd | Wholesale & retail | 2012 |
| Harveys Cars Limited | Transport & logistics | 2013 |
| Haslingden Bargain Store Ltd | Wholesale & retail | 2026 |
| Haslingden Community Link | Hospitality | 1998 |
| Haslingden Discount Store Limited | Wholesale & retail | 2019 |
| Haslingden Foods Ltd | Hospitality | 2025 |
| Haslingden Indian Restaurant Ltd | Hospitality | 2019 |
| Haslingden Service Station Limited | Wholesale & retail | 2013 |
| Haslingden Tyres Ltd | Wholesale & retail | 2008 |
| Haven Personal Funeral Plans Ltd | Other services | 1998 |
| Havencare Management Holdings Limited | Other services | 2017 |
| Havencare Management Limited | Other services | 1973 |
| Hawkrose Strategy LLP | | 2017 |
| Hawthorn Estates Ltd | Construction | 2006 |
| Haych Cosmetics Limited | Manufacturing | 2016 |
| Hazelvalley Limited | Health & social care | 2019 |
| Hazelvalley Properties Ltd | Real estate | 2025 |
| Hazelwood Homecare Limited | Health & social care | 1985 |
| Hazelwood Welding Services Limited | Manufacturing | 2016 |
| HD Digital Solutions Ltd | Professional & scientific | 2026 |
| HEADTOTOES476 Limited | Wholesale & retail | 2024 |
| Healthy Mind, Games CIC | Other services | 2020 |
| Heap Plastering & Building Services Limited | Construction | 2017 |
| Hearing Accessories Ltd | Wholesale & retail | 2016 |
| Hearthstone Holdings Ltd | Real estate | 2026 |
| HEB Diagnostics Limited | Health & social care | 2022 |
| Helmshore Convenience Store Ltd | Wholesale & retail | 2021 |
| Helmshore Properties Limited | Real estate | 2007 |
| Helmshore Road Car Sales Ltd | Wholesale & retail | 2023 |
| HELP4SEND Limited | Education | 2025 |
| Hench Ltd | Wholesale & retail | 2015 |
| Heng Chen Limited | Hospitality | 2025 |
| Hennessey Electrical Ltd | Construction | 2022 |
| Hennessey Limited | Construction | 2024 |
| HEO Investments Ltd | Real estate | 2025 |
| Here's to US Entertainment Ltd | Arts & recreation | 2024 |
| Hester's Haberdashery Limited | Wholesale & retail | 2002 |
| Hewthane Ltd | Professional & scientific | 2025 |
| Hexchef Ltd | Wholesale & retail | 2025 |
| HH Land & Developments Ltd | Real estate | 2024 |
| Higginsholt Process Systems Limited | Professional & scientific | 2009 |
| High Slice Ltd | Professional & scientific | 2026 |
| Higher Booths Properties Limited | Households | 2007 |
| Hill Top Kennels Limited | Agriculture & fishing | 2021 |
| Hindle Holdings (Turner Fold) Ltd | Real estate | 2025 |
| Hive Mind Training Ltd | Professional & scientific | 2024 |
| HKN Food Safety Ltd | Professional & scientific | 2020 |
| HMM Holdings Limited | Financial services | 2024 |
| Holden Mill Estates Ltd | Real estate | 2026 |
| Holden Plumbing & Heating Ltd | Construction | 2020 |
| Holistic Healthcare and Support Ltd | Administrative & support | 2024 |
| Hollingside Technologies Ltd | Information & communication | 2003 |
| Holmefield Garage Limited | Wholesale & retail | 2002 |
| Holmes Financial Planning Ltd | Financial services | 2014 |
| Holy World Limited | Wholesale & retail | 2026 |
| Home Glaze Ltd | Manufacturing | 2017 |
| Home Repair Handyman Ltd | Other services | 2023 |
| Homesafe Fire Servicing Limited | Other services | 2012 |
| Homesteads Healthcare Ltd | Health & social care | 2025 |
| Honeytree Collective Ltd | Manufacturing | 2025 |
| Honour Cards Ltd | Wholesale & retail | 2025 |
| HORIZON44 Ltd | Professional & scientific | 2025 |
| Horse and Bamboo Theatre Ltd | Arts & recreation | 1983 |
| Hospice in Rossendale | Health & social care | 1991 |
| Hospitality Tech Group Limited | Information & communication | 2021 |
| House of Sussex Consulting Ltd | Education | 2009 |
| Howard + Co Ltd | Construction | 2022 |
| Howard Sales Recovery Limited | Wholesale & retail | 2009 |
| Howarth Holly Limited | Professional & scientific | 2017 |
| Hoyland Environmental Ltd | Professional & scientific | 2019 |
| HPB Asset Limited | Real estate | 2019 |
| Hret Training Services Ltd | Education | 2025 |
| HSH Legal Limited | Professional & scientific | 2025 |
| HST Developments Limited | Real estate | 2006 |
| Hullah & Sons Ltd | Wholesale & retail | 2015 |
| Hurst Geoengineering Limited | Professional & scientific | 2025 |
| HY Truck Limited | Education | 2025 |