| Guvan Technology Ltd | Administrative & support | 2024 |
| Guy's Cliffe Catering and Events Limited | Hospitality | 2019 |
| Guya Carpet Co., Ltd | Manufacturing | 2021 |
| GZ Guanhua Trading Limited | Administrative & support | 2021 |
| GZH Ebuna General Trading Co., Ltd | Administrative & support | 2020 |
| H&F Osen Trading Co Ltd | Manufacturing | 2019 |
| Habbits Contracting Ltd | Construction | 2020 |
| HAI Fish Limited | Wholesale & retail | 2022 |
| HAI NA BAI Chuan Investment Group Limited | Financial services | 2018 |
| Hair by Harriet Stone Limited | Other services | 2025 |
| Halateya Ltd | Wholesale & retail | 2026 |
| Halestorm Group Ltd | Real estate | 2020 |
| Halo Physio LLP | | 2012 |
| Hamilton Wheelhouse Ltd | Professional & scientific | 2018 |
| Hanginger Limited | Information & communication | 2015 |
| Hangyuan Ruifeng Co., Ltd | Administrative & support | 2018 |
| Hangzhou Chengyingyi Energy Technology Co., Ltd | Manufacturing | 2015 |
| Hangzhou Keyingchem Co., Limited | Wholesale & retail | 2019 |
| Hangzhou Maisha Fashion Co., Ltd | Administrative & support | 2021 |
| Hangzhou Yinfa Hardware Machinery Co., Ltd | Wholesale & retail | 2018 |
| Hannah-Grace Care and Support Limited | Other services | 2016 |
| Hano Biotech Co., Ltd | Extraterritorial | 2019 |
| Hanson Consultancy Limited | Information & communication | 2018 |
| Hanyue IMP and EXP Co., Limited | Administrative & support | 2021 |
| Happy Confident Kids Limited | Education | 2023 |
| Happy Homies Ltd | Real estate | 2022 |
| Harborough Property Consultants Ltd | Professional & scientific | 2014 |
| Hardcore Logistics Co., Ltd. | Administrative & support | 2021 |
| Harger Court Management Company Limited | Extraterritorial | 2001 |
| Harlyn Commerce Limited | Professional & scientific | 2012 |
| Harris Swindells Ltd | Professional & scientific | 2017 |
| Harrison Developments (West Midlands) Limited | Construction | 2008 |
| Harts Consulting Ltd | Information & communication | 2026 |
| Hash Hash Marketing Ltd | Other services | 2024 |
| Hattersley Valve Co., Limited | Extraterritorial | 2016 |
| Havana Coco Limited | Hospitality | 2023 |
| Haven Point Management Company Limited | Real estate | 2004 |
| Hawkshill Consulting Limited | Professional & scientific | 2019 |
| Hawkswood Automotive Limited | Wholesale & retail | 2025 |
| Haystoun Construction Ltd. | Construction | 1997 |
| Hayward Developments Limited | Construction | 2003 |
| Hayward Marketing Limited | Administrative & support | 2010 |
| Hayward Smart Holdings Limited | Financial services | 2021 |
| HCM Products Co., Ltd. | Administrative & support | 2020 |
| HCR Holdings Limited | Financial services | 2021 |
| HCR Kenilworth Limited | Financial services | 2023 |
| HD Yoga Manufacturing Co., Ltd. | Professional & scientific | 2019 |
| HE RUI International Co., Ltd. | Professional & scientific | 2018 |
| HE Xing International Company Limited | Wholesale & retail | 2019 |
| Head in Front Betting Ltd | Arts & recreation | 2025 |
| Headway Commercial Services Ltd | Construction | 2019 |
| Hear 2 Help Ltd | Administrative & support | 2025 |
| Heart K Ltd | Wholesale & retail | 2019 |
| Heartwood Tree Surgeons Limited | Agriculture & fishing | 2007 |
| Heath Terrace Management Company Limited | Households | 1999 |
| Heavenlyz Consultancy Limited | Professional & scientific | 2013 |
| Heavenlyz Grooming Limited | Other services | 2019 |
| Hebei Benhong New Material Technology Co., Ltd. | Manufacturing | 2022 |
| Hebei Yasater Plastic Products Co., Ltd. | Administrative & support | 2019 |
| Hebei Yunhe Textile Co., Ltd. | Administrative & support | 2026 |
| Hefei Dingtao Construction Machinery Co., Limited | Administrative & support | 2022 |
| Hefei Medicon Plastic Products Co., Ltd | Extraterritorial | 2018 |
| Hellenic Hideaways Limited | Professional & scientific | 2000 |
| Hemujin Textile Technology Co., Ltd | Wholesale & retail | 2026 |
| Henan Meizhichen Trading Co Ltd | Administrative & support | 2023 |
| Heng FA Chain Co., Ltd | Administrative & support | 2024 |
| Henry Hargreaves Limited | Financial services | 2008 |
| Hepburn Carpentry Ltd | Construction | 2014 |
| Heritage Classics Ltd | Manufacturing | 2018 |
| Hero Tools Ltd | Manufacturing | 2021 |
| Heyville Properties Limited | Real estate | 1995 |
| Hidea Games Ltd | Manufacturing | 2022 |
| Higginbotham Egan Insurance Services Limited | Financial services | 1972 |
| High Pass Coaching & Consultancy Ltd | Professional & scientific | 2025 |
| High PAW Boarding Ltd | Other services | 2026 |
| High Wire Audio Ltd | Information & communication | 2023 |
| Highland C Property Limited | Real estate | 2025 |
| Highui Import & Export Co., Ltd | Extraterritorial | 2017 |
| Higood Live UK Limited | Wholesale & retail | 2021 |
| Hillman Scott Consulting Limited | Professional & scientific | 2025 |
| Hinix Industry and Trade Co Ltd | Extraterritorial | 2017 |
| Hiper Supply Chain Management Co., Ltd | Extraterritorial | 2018 |
| Hirnswitch Consulting Ltd | Administrative & support | 2016 |
| Hisa Properties Ltd | Real estate | 2017 |
| HJ Property & Investments Limited | Real estate | 2020 |
| HK Deqin Group Limited | Professional & scientific | 2017 |
| HK Teaholic Company Limited | Wholesale & retail | 2025 |
| HLM Associates Ltd | Extraterritorial | 2015 |
| HMJ Textile Technology Co., Ltd | Wholesale & retail | 2026 |
| Hobbros Ltd | Wholesale & retail | 2025 |
| Hogar Industry Co., Ltd | Administrative & support | 2020 |
| Holala Homes Ltd | Real estate | 2020 |
| Holland & Holland Enterprises Ltd | Professional & scientific | 2009 |
| Holland Architects Limited | Professional & scientific | 2012 |
| Holsten Solutions Limited | Manufacturing | 2022 |
| Holsten Utilities Limited | Construction | 2024 |
| Homekeeper Management Limited | Administrative & support | 1987 |
| Hondeen International Limited | Administrative & support | 2026 |
| Honest Senior Care Limited | Health & social care | 2022 |
| Hong Kong BYS Yoyo Trading Limited | Extraterritorial | 2024 |