| Hansgya International Ltd | Manufacturing | 2026 |
| Hanuah Ltd | Wholesale & retail | 2025 |
| Haodui International Chain Reform Group Ltd | Information & communication | 2026 |
| Haowen International Limited | Wholesale & retail | 2026 |
| Haping Technology Ltd | Wholesale & retail | 2025 |
| Happiness Supermarke Ltd | Wholesale & retail | 2025 |
| Happy Solutions Management Ltd | Information & communication | 2024 |
| Happy Tails Gifts Ltd | Wholesale & retail | 2025 |
| Happy Tails Pet Shop Ltd | Wholesale & retail | 2025 |
| HAPPYEATER88 Ltd | Hospitality | 2024 |
| Happypick Ltd | Extraterritorial | 2024 |
| Haqngwu Trade Ltd | Wholesale & retail | 2025 |
| Harbour Goods Ltd | Wholesale & retail | 2025 |
| Hardey Ltd | Wholesale & retail | 2026 |
| Hardware Plastix Co., Ltd | Manufacturing | 2023 |
| Hardwick Britfield Ltd | Wholesale & retail | 2025 |
| Harebell Design Ltd | Wholesale & retail | 2020 |
| Hari and Riff Limited | Information & communication | 2025 |
| Hari Sewell Consultancy Limited | Professional & scientific | 2009 |
| Harisiti Consulting Services Limited | Administrative & support | 2018 |
| HARLEY339 Ltd | Arts & recreation | 2025 |
| Harmewood Valvista Ltd | Wholesale & retail | 2025 |
| Harmonia Solutions Ltd | Health & social care | 2023 |
| Harmonie Botanicals Limited | Wholesale & retail | 2024 |
| Harmonoid Limited | Wholesale & retail | 2025 |
| Harosey Ltd | Extraterritorial | 2024 |
| Harper and Grange Ltd | Hospitality | 2026 |
| Harpoon Solutions Ltd | Information & communication | 2022 |
| Harps Willow Tree CIC | Hospitality | 2024 |
| Harribitxi Ltd | Health & social care | 2026 |
| Harriets Haven Group C.I.C. | Real estate | 2024 |
| Harris Holden Ltd | Professional & scientific | 2015 |
| Harrisworth Group Ltd | Professional & scientific | 2025 |
| Harrowven Real Estates Ltd | Real estate | 2021 |
| Harry James Group Ltd | Administrative & support | 2020 |
| Hart & Reilly Renovations Ltd | Construction | 2022 |
| Hartham Food Ingredients Limited | Administrative & support | 2009 |
| Hartyq Ltd | Wholesale & retail | 2025 |
| Harunook Property Ltd | Hospitality | 2026 |
| Harvaza Limited | Wholesale & retail | 2026 |
| Harvella Limited | Real estate | 1985 |
| Harvest Haven Enterprises Ltd | Wholesale & retail | 2025 |
| Harwell Commerce Ltd | Wholesale & retail | 2025 |
| Hasa Beauty Ltd | Wholesale & retail | 2023 |
| Hasa Series UK Limited | Wholesale & retail | 2023 |
| Haseley Manor Management Company Limited | Households | 2018 |
| Hashimani Ltd | Wholesale & retail | 2026 |
| Hashtag Traders Ltd | Wholesale & retail | 2024 |
| Hatherley Group Ltd | Wholesale & retail | 2025 |
| Hatice Soykan Ltd | Professional & scientific | 2026 |
| Hatiwave Studios Ltd | Information & communication | 2026 |
| Hattersley Valve Trade Co., Ltd | Extraterritorial | 2024 |
| Haus of Eden Limited | Wholesale & retail | 2023 |
| Haus of Enigma Ltd | Professional & scientific | 2025 |
| Hautevia Ltd | Wholesale & retail | 2025 |
| Have a Painfree Body Ltd | Other services | 2023 |
| HAVEN256 UK Ltd | Information & communication | 2025 |
| Havenly Crafted Ltd | Manufacturing | 2024 |
| Havenrise Estates Ltd | Real estate | 2025 |
| Havenskinhaus Ltd | Other services | 2025 |
| Havilah Grace Digital Ltd | Information & communication | 2026 |
| Havn Concepts Ltd | Professional & scientific | 2025 |
| Havn Spaces Limited | Construction | 2025 |
| Havocst Ltd | Wholesale & retail | 2025 |
| Hawa Goods Ltd | Wholesale & retail | 2025 |
| Hawkins Property Developments Ltd | Real estate | 2024 |
| Hawxx Ltd | Information & communication | 2021 |
| HAY Development Company Ltd | Construction | 2020 |
| Hayat & Sons Limited | Wholesale & retail | 2024 |
| Hayati Staff Limited | Administrative & support | 2021 |
| Haybales and Chandeliers Ltd | Administrative & support | 2021 |
| Hayer Management Limited | Real estate | 2018 |
| Hayhill Developments Ltd | Construction | 2005 |
| Hayley Charlton Ltd | Information & communication | 2025 |
| Hazcorp Ltd | Extraterritorial | 2016 |
| Hazel Grove Stockport Ltd | Real estate | 2022 |
| Hazelwood Lane Ltd | Wholesale & retail | 2026 |
| HB Aeroservices Ltd | Manufacturing | 2025 |
| HB Veritas Iron & Steel Co., Ltd | Administrative & support | 2025 |
| HBR Hair Ltd | Other services | 2018 |
| Hbsx Solutions Limited | Wholesale & retail | 2023 |
| HC Capital Holdings Limited | Information & communication | 2025 |
| HC Development Co 20 Limited | Real estate | 2018 |
| HC James Limited | Wholesale & retail | 2025 |
| HC Sales & Service Limited | Manufacturing | 2022 |
| Hchangk Ltd | Wholesale & retail | 2025 |
| HD Nutrition Ltd | Professional & scientific | 2020 |
| HD Properties 22 Limited | Construction | 2022 |
| HE SAI GE Ltd | Wholesale & retail | 2025 |
| Headlam Ltd | Administrative & support | 2020 |
| Headspace Haven Ltd | Health & social care | 2025 |
| Healialab LLP | | 2025 |
| Healibar Ltd | Wholesale & retail | 2025 |
| Health Vault Ltd | Public administration | 2020 |
| Health Voice PR Limited | Professional & scientific | 2024 |
| Healthiva Ltd | Wholesale & retail | 2025 |
| Healthy Life E-Commerce (UK) Limited | Wholesale & retail | 2023 |
| Healthy Trading Limited | Wholesale & retail | 2025 |
| Hearmealways Ltd | Health & social care | 2026 |
| Heart and Soul Properties Ltd | Construction | 2025 |