| Human-Validation-Group Limited | Information & communication | 2026 |
| Humanetix Ltd | Professional & scientific | 2025 |
| Humanitarian Project Limited | Financial services | 2026 |
| Humberstone Solutions Ltd | Administrative & support | 2017 |
| Humble Land Ltd | Real estate | 2024 |
| Humiwell Ltd | Wholesale & retail | 2026 |
| Hummco Ltd | Wholesale & retail | 2025 |
| Hummingbird Logistics Ltd | Transport & logistics | 2023 |
| Hummingbird Youth Support Service CIC | Education | 2026 |
| Hunan Leixuan Information Technology Co., Ltd | Manufacturing | 2024 |
| Hundred Rivers Miles Group Ltd | Wholesale & retail | 2025 |
| Hunnert Ltd | Wholesale & retail | 2025 |
| Hunter Court Freehold Limited | Real estate | 2024 |
| Hunters Empire Agency Ltd | Professional & scientific | 2026 |
| HUO AO Ltd | Wholesale & retail | 2025 |
| Huojian Co., Ltd | Wholesale & retail | 2024 |
| Hurst & Dyson Properties Limited | Construction | 2015 |
| Hutchinson.Edc Ltd | Professional & scientific | 2025 |
| HV SAP Services Ltd | Professional & scientific | 2026 |
| HW Automate Co., Limited | Administrative & support | 2025 |
| HW Realty Ltd | Real estate | 2024 |
| HW Ventures Ltd. | Information & communication | 2012 |
| Hwa's Investment Limited | Administrative & support | 2017 |
| HWB Management Company Limited | Real estate | 2019 |
| HWT Flightautomation Ltd | Administrative & support | 2025 |
| HX Flooring Ltd | Wholesale & retail | 2026 |
| HX Xiao Ltd | Wholesale & retail | 2025 |
| Hyalink Tech Solutions Limited | Administrative & support | 2024 |
| Hydrogen Tech Limited | Wholesale & retail | 2025 |
| Hyper Tech Media Ltd | Wholesale & retail | 2025 |
| Hypernova Software Ltd | Information & communication | 2026 |
| Hypernova Technologies Ltd | Information & communication | 2026 |
| Hyperquest Technology Ltd | Wholesale & retail | 2025 |
| Hysk Silk Limited | Manufacturing | 2025 |
| Hyuua Ltd | Wholesale & retail | 2026 |
| Hyxcl Ltd | Wholesale & retail | 2025 |
| Hzgdkj Ltd | Wholesale & retail | 2025 |
| I AM L.I.P Ltd | Information & communication | 2021 |
| I AM the World Ltd | Wholesale & retail | 2020 |
| I Manage Services Ltd | Financial services | 2022 |
| I-Cover Solutions Limited | Administrative & support | 2015 |
| I6S Security Services Ltd | Professional & scientific | 2025 |
| Iacumag Ltd | Manufacturing | 2025 |
| Iancollinsdigital Limited | Professional & scientific | 2026 |
| IAO Properties Limited | Real estate | 2025 |
| IB Mobile Games Ltd | Information & communication | 2026 |
| Ibandie Ltd | Wholesale & retail | 2025 |
| Ibelieve Community Interest Company | Health & social care | 2019 |
| Ibilier Ltd | Wholesale & retail | 2025 |
| Ice CAP Property Limited | Administrative & support | 2005 |
| Icome International Trading Limited | Extraterritorial | 2022 |
| Iconix Solutions Ltd | Information & communication | 2023 |
| Iconsult Academy Ltd | Professional & scientific | 2023 |
| ID Panda Ltd | Manufacturing | 2026 |
| Ideacreationtech Ltd | Manufacturing | 2025 |
| Idealaura Ltd | Wholesale & retail | 2025 |
| Idealighter Ltd | Information & communication | 2025 |
| Ideas in Actions Ltd | Wholesale & retail | 2025 |
| Idel Bookkeeping Ltd | Professional & scientific | 2022 |
| Identidad International LLP | | 2025 |
| Identiguard Verification Services Limited | Administrative & support | 2025 |
| Identity Networks Ltd | Information & communication | 2019 |
| Idfc Limited | Professional & scientific | 2026 |
| Idilbi Publishing and Trading Ltd | Wholesale & retail | 2023 |
| IDM Consulting Services Ltd | Professional & scientific | 2021 |
| IDS Tours Ltd | Administrative & support | 2025 |
| IDS Trading Ltd | Administrative & support | 2026 |
| Iduory Ltd | Extraterritorial | 2024 |
| Idus Holdings Limited | Professional & scientific | 2024 |
| IF Investments & Finance Limited | Financial services | 2019 |
| Ifar Academy - International Finance, Accounting & Reporting Academy Ltd | Professional & scientific | 2026 |
| Ifima Technology Ltd | Manufacturing | 2025 |
| Iflyip Limited | Wholesale & retail | 2025 |
| Ifrozy Ltd | Extraterritorial | 2024 |
| IGM FX Ltd | Information & communication | 2023 |
| Igniteone C.I.C. | Education | 2021 |
| Igogo Trade Ltd | Wholesale & retail | 2025 |
| IHS Drops Ltd | Wholesale & retail | 2026 |
| Iiag Limited | Other services | 2014 |
| Iifnkatt Culture Media Co., Ltd | Wholesale & retail | 2026 |
| Ikyf Kpupkm Trading Limited | Wholesale & retail | 2025 |
| Ilarmay Ltd | Extraterritorial | 2024 |
| ILB Solutions Limited | Financial services | 2019 |
| Ilcoo Ltd | Extraterritorial | 2024 |
| Ilhan Luxury Ltd | Wholesale & retail | 2025 |
| Illumacore Ltd | Information & communication | 2025 |
| Illuminate Creator Agency Limited | Information & communication | 2025 |
| Illy Care Services Ltd | Health & social care | 2026 |
| Illy Optical Trading Co., Ltd | Administrative & support | 2021 |
| Imaaife Limited | Other services | 2025 |
| Image Vision Travel LLP | | 2023 |
| Imagesense Diagnostics Ltd | Health & social care | 2026 |
| Imaginails Ltd | Wholesale & retail | 2025 |
| Imagine Homes Properties Limited | Real estate | 2025 |
| Imagine ME Stories Ltd | Wholesale & retail | 2020 |
| Imagineideas Studio Ltd | Information & communication | 2025 |
| Imaginex International Ltd | Wholesale & retail | 2025 |
| Imago Relationship Ltd | Health & social care | 2025 |
| Imbasa Limited | Professional & scientific | 2015 |
| IMGP4O AI Global Systems Ltd | Information & communication | 2025 |