| Hambledon View Developments Limited | Construction | 2016 |
| Hameppet Ltd | Wholesale & retail | 2018 |
| Hamer Bolton Holdings Limited | Administrative & support | 2019 |
| Hamer Group Holdings Ltd | Administrative & support | 2021 |
| Hamer Strategic Insight Limited | Professional & scientific | 2023 |
| Hamilton Holdings Group Limited | Real estate | 2024 |
| Hammerjack Limited | Construction | 2016 |
| Hammermade Ltd | Wholesale & retail | 2018 |
| Hampson Motors Ltd | Wholesale & retail | 2023 |
| Hamzah Trading Ltd | Wholesale & retail | 2024 |
| Hancat | Professional & scientific | 2025 |
| Hands on Caring Ltd | Health & social care | 2024 |
| Handybuildmanchester Ltd | Construction | 2025 |
| Handzz Ltd | Real estate | 2020 |
| Haneen Ltd | Hospitality | 2021 |
| Hani Hasan Ltd | Wholesale & retail | 2026 |
| Hanima Limited | Health & social care | 2015 |
| Hanish Global Ltd | Hospitality | 2026 |
| Hannons Trading Ltd | Wholesale & retail | 2021 |
| Hanoli HR Ltd | Administrative & support | 2025 |
| Hanoli People Ltd | Administrative & support | 2023 |
| Hanoli Wellbeing Ltd | Health & social care | 2025 |
| Hanrahan TV Ltd | Information & communication | 2019 |
| HAP Optical Ltd | Health & social care | 2018 |
| Hapori Living Limited | Real estate | 2018 |
| Happen Software Limited | Information & communication | 2009 |
| Happer Ltd | Professional & scientific | 2005 |
| Happy Daze Ltd | Wholesale & retail | 2019 |
| Happy Heaven Ltd | Public administration | 2024 |
| Happy ME Community CIC | Information & communication | 2024 |
| Happydazebury Ltd | Wholesale & retail | 2025 |
| Happynails Bury Ltd | Other services | 2025 |
| HAQ BAU Ltd | Hospitality | 2023 |
| Harb Developments Ltd | Real estate | 2007 |
| Harc Creative Productions Ltd | Education | 2026 |
| Hardman Developments Limited | Real estate | 2001 |
| Hardman Residential Limited | Real estate | 2005 |
| Hardman Ventures Limited | Construction | 2020 |
| Hardmann Services Limited | Extraterritorial | 2021 |
| Hardmans Work Related Services Limited | Water & waste | 2014 |
| Hardwired IT Ltd | Information & communication | 2023 |
| Hardy Holdings Limited | Financial services | 2019 |
| Hareem Property Holdings Ltd | Real estate | 2026 |
| Hareram Bury Ltd | Wholesale & retail | 2024 |
| Harewood Utilities Ltd | Information & communication | 2022 |
| Harla Limited | Professional & scientific | 2023 |
| Harlevist Ltd | Wholesale & retail | 2018 |
| Harlex Limited | Extraterritorial | 2020 |
| Harlow Therapy Limited | Construction | 2015 |
| Harmony Entertainment Ltd | Education | 2015 |
| Harpenden Nature Restoration Project Ltd | Professional & scientific | 2025 |
| Harper Green Limited | Administrative & support | 2013 |
| Harrell Hiab and Haulage Limited | Transport & logistics | 2014 |
| Harringtons Clothing Limited | Manufacturing | 2015 |
| Harris Waste Solutions Ltd | Water & waste | 2026 |
| Harrison Lettings & Management Limited | Administrative & support | 2010 |
| Harrods Solutions Ltd | Administrative & support | 2015 |
| Harry's Barbershop Ltd | Other services | 2024 |
| Harry's Wholesale Limited | Wholesale & retail | 2020 |
| Hartage Limited | Extraterritorial | 2020 |
| Hartford Commercial Windows Ltd | Manufacturing | 2007 |
| Harvard Advisory Ltd | Other services | 2017 |
| Harvest & Home Ltd | Wholesale & retail | 2025 |
| Harvest Park Developments Limited | Construction | 2009 |
| Harvest Park Management Limited | Real estate | 2018 |
| Harvey Ashworth Limited | Real estate | 2024 |
| Harwood Motor Village Limited | Wholesale & retail | 2019 |
| HAS (NW) Limited | Wholesale & retail | 2017 |
| Hasab Empire Limited | Real estate | 2024 |
| Hasab Ltd | Health & social care | 2020 |
| Hastie Accounting Services Ltd | Professional & scientific | 2022 |
| Hastie Business Services Ltd | Administrative & support | 2026 |
| Haute Market Ltd. | Wholesale & retail | 2025 |
| Haute Weddings Limited | Administrative & support | 2013 |
| Hawk Leisure Ltd | Hospitality | 2025 |
| Hawkhurst Court RTM Company Limited | Households | 2018 |
| Hawkshaw Close Management Company Limited | Households | 2005 |
| Hawkshaw Developments Limited | Construction | 2020 |
| Hawkshaw Rise Residents Management Company Limited | Real estate | 2020 |
| Hawkstone Capital Limited | Real estate | 2024 |
| HAY Let's Communicate Ltd | Professional & scientific | 2018 |
| Haygent Ltd | Transport & logistics | 2011 |
| Haynes & Jones Ltd | Information & communication | 2014 |
| Haywire Import and Export Limited | Wholesale & retail | 2016 |
| Hazelwood Court Flats (Urmston) Limited | Households | 1974 |
| Hbcelc Ltd | Administrative & support | 2021 |
| HC Contemporary Limited | Wholesale & retail | 2024 |
| HC Project 1 Ltd | Construction | 2021 |
| HC Trading and Investment Ltd | Manufacturing | 2020 |
| HC123105 Ltd | Other services | 2026 |
| HD DB Developments Limited | Construction | 2024 |
| HD DB Holdings Ltd | Financial services | 2024 |
| HD Hideaways Ltd | Real estate | 2024 |
| HD13 Ltd | Professional & scientific | 2021 |
| HDB Projects Ltd | Construction | 2019 |
| HDC Properties Limited | Real estate | 2013 |
| HDS Vision Consulting Ltd | Other services | 2018 |
| HDS Visions | Health & social care | 2015 |
| Healed Hair and Skin Ltd | Wholesale & retail | 2025 |
| Healey Care Limited | Health & social care | 2002 |