| Home Tech Retail Ltd | Wholesale & retail | 2025 |
| Home to Garden Limited | Wholesale & retail | 2004 |
| Home Vision Improvements Limited | Construction | 2021 |
| Home Zoom Ltd | Real estate | 2020 |
| Homecourt Limited | Information & communication | 1994 |
| Homegrown Private Ltd | Manufacturing | 2025 |
| Homely Welcoming Stays Ltd | Real estate | 2025 |
| Homes Material Ltd | Wholesale & retail | 2025 |
| Homestyle Carpet & Flooring Ltd | Construction | 2026 |
| Hometech Specialist Ltd | Construction | 2020 |
| Honey BEE Estates Ltd | Real estate | 2023 |
| Honey BEE Healthcare Limited | Health & social care | 2023 |
| Honeysuckle Properties Limited | Other services | 2000 |
| Honfro Ltd | Wholesale & retail | 2021 |
| Hope Anchor CIC | Real estate | 2024 |
| Hope Business Enterprises Ltd | Education | 2017 |
| Hora Associates Limited | Professional & scientific | 2015 |
| Horan’S Venetian Polished Plaster Ltd | Construction | 2018 |
| Horatio Services Limited | Real estate | 2015 |
| Horizon Loft Ltd | Construction | 2026 |
| Horizon Property GRP Limited | Real estate | 2026 |
| Horizon Security Limited | Administrative & support | 2022 |
| Horizons Property Holding Ltd | Real estate | 2024 |
| Hornchurch Turkuaz Limited | Real estate | 2024 |
| Horseed Ltd | Education | 2025 |
| Horus Guarding Ltd | Administrative & support | 2025 |
| Hosford.Io Ltd | Information & communication | 2026 |
| Hot N Spicy Hayes Ltd | Hospitality | 2024 |
| Hot Source Heating Ltd | Construction | 2024 |
| Hotel Management International (Holdings) Limited | Professional & scientific | 2001 |
| Hotel Management International Limited | Hospitality | 1972 |
| Hotshot Removals & Logistics Ltd | Transport & logistics | 2021 |
| Hounslow Cricket Club Limited | Arts & recreation | 2024 |
| Hounslow Grocery Limited | Wholesale & retail | 2019 |
| Hounslow PO Ltd | Wholesale & retail | 2025 |
| House Mann Ltd | Real estate | 2025 |
| House Movers Limited | Transport & logistics | 2020 |
| House of Clarence Glazing Ltd | Construction | 2026 |
| House of Clarence Ltd | Wholesale & retail | 2025 |
| House of Fashion by Singhs Ltd | Wholesale & retail | 2020 |
| House of Jewels by Singhs Ltd | Wholesale & retail | 2024 |
| House of Safwah Ltd | Wholesale & retail | 2026 |
| House of Teanis Ltd | Professional & scientific | 2025 |
| Houseoftahs Limited | Wholesale & retail | 2026 |
| Housing Solutions (GB) Limited | Real estate | 2008 |
| HP Retail Limited | Wholesale & retail | 2020 |
| HPH (SUB) Ltd | Real estate | 2023 |
| HPH Clifton Ltd | Real estate | 2021 |
| HPK Ltd | Construction | 2026 |
| Hpkltd Ltd | Manufacturing | 2026 |
| HPS London Ltd | Real estate | 2014 |
| HPY Scaffolding Limited | Construction | 2026 |
| HQ Resources Limited | Financial services | 2014 |
| HQS Developer Ltd | Construction | 2024 |
| HR Professional Services Ltd | Construction | 2024 |
| HR Properties Investment Ltd | Real estate | 2024 |
| HR Stores Ltd | Wholesale & retail | 2018 |
| HR08 Construction Ltd | Construction | 2021 |
| HR08 Projects Ltd | Construction | 2024 |
| HRH Chauffeurs Ltd | Transport & logistics | 2023 |
| HRK26 Ltd | Manufacturing | 2026 |
| Hrkt Ltd | Construction | 2025 |
| HRL Logistic Ltd | Transport & logistics | 2025 |
| HRM Enterprises Ltd | Wholesale & retail | 2026 |
| Hrmn Limited | Construction | 2026 |
| HRR Builders Ltd | Administrative & support | 2025 |
| HS & Ekam Constructions Ltd | Construction | 2021 |
| HS Arora Properties Limited | Real estate | 2024 |
| HS Automotive Sales Ltd | Wholesale & retail | 2025 |
| HS Dhillon Home Ltd | Real estate | 2025 |
| HS Guundhe Transport Ltd | Transport & logistics | 2021 |
| HS Mann Limited | Transport & logistics | 2024 |
| HS Mars Ltd | Transport & logistics | 2026 |
| HS Prime Constructions Ltd | Construction | 2020 |
| HS World Limited | Wholesale & retail | 2026 |
| HSA Butchers Ltd | Wholesale & retail | 2026 |
| HSA Property Ltd | Real estate | 2024 |
| Hsaa Consulting Limited | Professional & scientific | 2017 |
| Hsaa Estates Limited | Real estate | 2017 |
| Hsaa Group Limited | Real estate | 2019 |
| HSD Interiors Ltd | Manufacturing | 2025 |
| HSG Consulting Ltd | Professional & scientific | 2025 |
| HSH Online Limited | Wholesale & retail | 2019 |
| HSK Ecommerce Ltd | Wholesale & retail | 2024 |
| HSM Construction Limited | Construction | 2022 |
| HSN Accountants & Advisors Ltd | Professional & scientific | 2026 |
| Hsna Global Investments Ltd | Real estate | 2025 |
| HSP Properties Hayes Ltd | Real estate | 2023 |
| Hsps Properties Ltd | Real estate | 2026 |
| HSY Property Maintanance Ltd | Real estate | 2024 |
| HT Mulberry House Ltd | Construction | 2024 |
| HTB Hughes Limited | Construction | 2023 |
| Htech Consultant Ltd | Information & communication | 2019 |
| HTH Enterprise Ltd | Construction | 2018 |
| Hthc Express UK Ltd | Administrative & support | 2016 |
| HTK4 Ltd | Wholesale & retail | 2025 |
| Htuk Holdings Limited | Financial services | 2026 |
| Huda Associates Ltd | Health & social care | 2025 |
| Hudseal Waterproofing Ltd | Construction | 2026 |
| Huew Ltd | Extraterritorial | 2019 |