| Highgate Projects Limited | Construction | 2019 |
| Highland Union Industry Limited | Wholesale & retail | 2021 |
| Highlight Electrical Technology Co., Ltd | Extraterritorial | 2018 |
| Hilary Judge Management Limited | Professional & scientific | 2010 |
| Hill House (Foxgrove Road) Management Co. Ltd | Households | 2011 |
| Hillclear Ventures Limited | Information & communication | 2015 |
| Hillier Bartley Clothing Limited | Extraterritorial | 2021 |
| Hillview Court Residents Association Limited | Households | 1992 |
| Hillworth Property Management Limited | Real estate | 1999 |
| Hilowe International Limited | Wholesale & retail | 2022 |
| Himara Ltd | Construction | 2026 |
| Himatina Trading Limited | Extraterritorial | 2014 |
| Himatta Limited | Professional & scientific | 2022 |
| Hinwood Flat Management Company Limited | Households | 1978 |
| Hipo Sports Limited | Wholesale & retail | 2024 |
| Hire Central Ltd | Administrative & support | 2026 |
| Hire Quality Limited | Transport & logistics | 2015 |
| Hire Wood Rentals Ltd | Financial services | 2023 |
| Hiresoft Solutions Limited | Information & communication | 2016 |
| Hitech Industry Co., Ltd | Extraterritorial | 2023 |
| Hitherwood Court Freehold Limited | Real estate | 2013 |
| Hito Coffee Ltd | Wholesale & retail | 2025 |
| Hiyou Marine Machinery Limited | Extraterritorial | 2021 |
| HK Future Vision Technology Limited | Wholesale & retail | 2024 |
| HK L&A Trading Co., Limited | Extraterritorial | 2020 |
| HK Times Limited | Wholesale & retail | 2025 |
| HK Yiqiao Trade Co., Limited | Extraterritorial | 2018 |
| HL Optics Co., Ltd | Manufacturing | 2022 |
| HL Universal Ltd | Hospitality | 2026 |
| HLK Fibre Limited | Information & communication | 2024 |
| HLS Marketing Ltd | Professional & scientific | 2025 |
| Hlyco Trade Limited | Extraterritorial | 2020 |
| HM Auto Sales Limited | Administrative & support | 2020 |
| HM Tech Ltd | Professional & scientific | 2014 |
| HMK Equipment Co., Limited | Manufacturing | 2023 |
| HMS Sovereign Limited | Manufacturing | 2015 |
| Hnsw Limited | Wholesale & retail | 2025 |
| Hnuoda Marine Services Co., Ltd | Extraterritorial | 2021 |
| Hobart Productions Ltd | Information & communication | 2012 |
| Hobbs & Daughters Investments Limited | Real estate | 2005 |
| Hocentre Co., Limited | Wholesale & retail | 2020 |
| Holdings Management UK Ltd | Financial services | 2021 |
| Holistic & Beauty Therapy Limited | Other services | 2014 |
| Holland Ductwork Services Ltd | Construction | 2024 |
| Holland Huaniu Group (UK) Co., Ltd | Mining & quarrying | 2024 |
| Hollen Highway Solutions Limited | Professional & scientific | 2026 |
| Holly Bush Close (Oxted) Management Company Limited | Households | 2018 |
| Hollywood Estates Management Ltd | Real estate | 2020 |
| Holmcroft Residents' Association Company Limited | Households | 2013 |
| Holtzman Technologies Ltd | Manufacturing | 2026 |
| Home Decor Hand Made Steel Arts Limited | Wholesale & retail | 2019 |
| Home Glass Enterprise Co., Ltd | Extraterritorial | 2020 |
| Home Healthcare Ltd | Health & social care | 2007 |
| Home LET London Ltd | Real estate | 2015 |
| Home Life Property Services Limited | Real estate | 2020 |
| Home Products Source Ltd | Extraterritorial | 2010 |
| Home Solution Industry Limited | Extraterritorial | 2016 |
| Home Way Import and Export Co., Ltd. | Extraterritorial | 2021 |
| HOME2MOVE Ltd | Other services | 2016 |
| Homecare Medical Co., Ltd | Extraterritorial | 2013 |
| Homekemp Building Materials Co., Ltd | Professional & scientific | 2015 |
| Homemart Industry Ltd. | Extraterritorial | 2024 |
| Homemove Limited | Extraterritorial | 2004 |
| Homestead Cafe Limited | Hospitality | 2019 |
| Homstar Electrical Co., Ltd | Manufacturing | 2022 |
| Honch New Material Technology Co., Limited | Wholesale & retail | 2021 |
| Honcho Group (UK) Corporation Limited | Extraterritorial | 2017 |
| Hong Feng International Limited | Manufacturing | 2021 |
| Hong Kong Aoshi Co Ltd | Manufacturing | 2023 |
| Hong Kong JIE YA Trade Co., Limited | Wholesale & retail | 2023 |
| Hong Kong Winfeng Company Limited | Manufacturing | 2020 |
| Hong Qiang Charcoal Industry Limited | Extraterritorial | 2014 |
| Hong Sheng Mechanical Parts Manufacturer Co., Ltd | Extraterritorial | 2016 |
| Hong XIN RUI Business Group (UK) Limited | Professional & scientific | 2021 |
| Hongbangjiamei Trade Co., Limited | Extraterritorial | 2019 |
| Hongkong CAN International Co., Limited | Manufacturing | 2023 |
| Hongkong Chan Hone Co., Ltd | Extraterritorial | 2022 |
| Hongkong Ipure Biology Co., Limited | Wholesale & retail | 2020 |
| Hongkong Jinchen Trade Co., Limited | Wholesale & retail | 2024 |
| Hongkong Lance Trade & Supply Chain Co., Ltd | Manufacturing | 2016 |
| Hongkong Shengtu Import & Export Co., Ltd | Extraterritorial | 2021 |
| Hongkong Sinstar Container Service Limited | Extraterritorial | 2012 |
| Hongli Industrial Co., Ltd | Wholesale & retail | 2015 |
| Honglian Co., Ltd | Wholesale & retail | 2023 |
| Hongniu Chemical Group (Europe) Ltd | Extraterritorial | 2024 |
| Hongnuo Composite Co., Ltd | Extraterritorial | 2021 |
| Hongqi Group Wenzhou Transformer Co., Ltd. | Extraterritorial | 2021 |
| Hongsun International Co., Ltd. | Extraterritorial | 2022 |
| Hongxin IMP & EXP Co., Limited | Wholesale & retail | 2024 |
| Hongyang Metal Industry Co., Limited | Extraterritorial | 2009 |
| Hongyi Wealth Intelligence Technology Co., Limited | Financial services | 2023 |
| Hongyuan Industry Co., Ltd. | Extraterritorial | 2020 |
| Hongyuan International Logistics Co., Ltd | Extraterritorial | 2018 |
| Hongzhan Limited | Wholesale & retail | 2025 |
| Honssemi Semiconductors Ltd | Extraterritorial | 2013 |
| Honsun Marine Service Co., Ltd | Extraterritorial | 2022 |
| Honyeah Global Marine Engineering Technology Co., Ltd. | Professional & scientific | 2014 |
| Hookahmx Limited | Hospitality | 2019 |
| Hooper Brown Developments Ltd | Real estate | 2023 |
| Hooper HR Ltd | Administrative & support | 2026 |