| Heston Photographics Studio Limited | Professional & scientific | 2017 |
| HEY Bartender Ltd | Hospitality | 2019 |
| HEY Global Events Limited | Hospitality | 2026 |
| HF Omni Holding Limited | Real estate | 2019 |
| HFX Bearing Corporation Limited | Manufacturing | 2023 |
| HH Assets Ltd | Real estate | 2021 |
| HI Media Group Ltd | Professional & scientific | 2020 |
| High Class Constructing Limited | Construction | 2024 |
| High Grade Education Group Ltd | Education | 2023 |
| High Range Group Ltd | Administrative & support | 2026 |
| High Street Carpets Limited | Wholesale & retail | 2010 |
| Higher Order Software Ltd | Professional & scientific | 2026 |
| Highgrove Education Ltd | Education | 2023 |
| Highpoint Carpentry & Joinery Limited | Construction | 2020 |
| Highrak Limited | Hospitality | 1988 |
| Highskills Training Ltd | Information & communication | 2024 |
| Hightree Mobile Homes Ltd | Wholesale & retail | 2020 |
| Hilden Trading Ltd | Construction | 2026 |
| Hildens Bespoke Builders & Groundwork Ltd | Construction | 2026 |
| Hildens Roofing Specialists Ltd | Construction | 2026 |
| Hillconfed Prop Co Ltd | Financial services | 2024 |
| Himalayan Yeti UK Ltd | Hospitality | 2013 |
| Hing’S IT Solutions Ltd | Information & communication | 2025 |
| Hippy Fish Ltd | Hospitality | 2017 |
| Hiruma Investment Limited | Construction | 1979 |
| Hiruma Overseas Corporation (U.K.) Limited | Construction | 1967 |
| Historynow Limited | Information & communication | 2025 |
| Hitec Empire Limited | Information & communication | 2003 |
| Hitek Trading Limited | Administrative & support | 2020 |
| HJ Animation Shop Ltd | Information & communication | 2024 |
| HJ Tickets Limited | Wholesale & retail | 2025 |
| HK ALT Media Ltd | Wholesale & retail | 2017 |
| HK Hair and Beauty Limited | Other services | 2023 |
| HK Maxus Technology Co., Ltd | Administrative & support | 2022 |
| Hkome Ltd | Construction | 2025 |
| HL Partners Ltd | Real estate | 2024 |
| HL Tech Consulting Ltd | Information & communication | 2025 |
| HL Workshop Ltd | Other services | 2017 |
| Hlee & SON Roofing Ltd | Construction | 2020 |
| HM Consultancy & Trading Ltd | Wholesale & retail | 2021 |
| HMA Enterprise Ltd | Real estate | 2021 |
| Hmcosmetic Ltd | Other services | 2025 |
| HMK Consultancy Limited | Professional & scientific | 2019 |
| HML Construction Limited | Construction | 2015 |
| HND Properties Limited | Real estate | 2016 |
| Hodeib Search Limited | Administrative & support | 2026 |
| Holland Inn Hotel Limited | Hospitality | 2008 |
| Holly Tree Housing Limited | Real estate | 2018 |
| Holman Plumbing and Heating Ltd | Construction | 2020 |
| Holmesworth Limited | Transport & logistics | 2018 |
| Holt Strategies Ltd | Real estate | 2022 |
| Holy Skin Cosmetic Solutions Ltd | Other services | 2015 |
| Holysmoke Industry Co., Ltd | Extraterritorial | 2021 |
| Home a Loan Mortgage Consultants Limited | Administrative & support | 2001 |
| Home and YOU Limited | Extraterritorial | 2018 |
| Home Boilers Ltd | Construction | 2013 |
| Home Glowers CIC | Transport & logistics | 2025 |
| Home Refurb Limited | Construction | 2010 |
| Home Renovation Solutions Ltd | Construction | 2024 |
| Home Unity Ltd | Information & communication | 2023 |
| Homenest Real Estate Ltd | Real estate | 2026 |
| Homeosense Ltd | Health & social care | 2023 |
| Homer's Odysseys Ltd | Administrative & support | 2017 |
| Hong Kong LEI SHE Tech Co., Limited | Wholesale & retail | 2024 |
| Hong Sheng International Co., Ltd | Administrative & support | 2021 |
| Hongda Ceramics Co., Ltd | Wholesale & retail | 2023 |
| Hongkong Enovate Group Limited | Wholesale & retail | 2023 |
| Hooper Square Residents Association Limited | Households | 1990 |
| Horncastle Roofing & General Builders Limited | Construction | 2025 |
| Hornton Court Services Limited | Households | 1968 |
| Horsley Village Store Ltd | Wholesale & retail | 2022 |
| Hosanna D&B Limited | Wholesale & retail | 2013 |
| Hot and Cold Limited | Extraterritorial | 2014 |
| Hot Food Music Limited | Arts & recreation | 1981 |
| House of Mayfield Ltd | Manufacturing | 2025 |
| House of Nero Ltd | Manufacturing | 2025 |
| House of Nova Advisory Ltd | Professional & scientific | 2026 |
| House of Sake Ltd | Wholesale & retail | 2021 |
| House Space-X Ltd | Real estate | 2024 |
| Houwenda Co., Limited | Administrative & support | 2023 |
| Howard 10 Ltd | Arts & recreation | 2023 |
| HOX Transport Ltd | Transport & logistics | 2020 |
| HPU UK Ltd | Other services | 2020 |
| HQ Telecom Ltd | Wholesale & retail | 2003 |
| HR360 Limited | Administrative & support | 2020 |
| HRH Trading Ltd | Wholesale & retail | 2021 |
| HS Asset Investments Limited | Real estate | 2023 |
| HS Investment Capital Ltd | Real estate | 2026 |
| HS Techware Limited | Wholesale & retail | 2024 |
| HSK Consultants Ltd | Information & communication | 2024 |
| HSL (London) Ltd | Construction | 2013 |
| Hspd Ltd | Real estate | 2015 |
| HSR Associates Ltd | Information & communication | 2011 |
| HST Property Group Ltd | Real estate | 2026 |
| HT & H Limited | Real estate | 2026 |
| Huili International Limited | Administrative & support | 2024 |
| Humble Plate Ltd | Hospitality | 2025 |
| Hundreds Footwear Trading Co., Ltd | Administrative & support | 2023 |
| Hungarian Reciters Association UK C.I.C. | Education | 2026 |
| Hungry Bees Ltd | Hospitality | 2024 |