| HKS Houses Ltd | Real estate | 2024 |
| HM Driving Services Ltd | Transport & logistics | 2026 |
| Hm&S Limited | Wholesale & retail | 2025 |
| HMG Properties WM Ltd | Real estate | 2023 |
| HMG Stores UK Ltd | Wholesale & retail | 2022 |
| HMP Transport Ltd | Transport & logistics | 2026 |
| Holistic Opportunities for Progressive Empowerment CIC | Health & social care | 2025 |
| Holmes & Homes Limited | Real estate | 2008 |
| Holmhead Stores Ltd | Wholesale & retail | 2025 |
| Holyhead Medical Limited | Real estate | 2025 |
| Home Premium Style Ltd | Wholesale & retail | 2025 |
| Home Shine Windows Ltd | Construction | 2019 |
| Home Shopa Ltd | Wholesale & retail | 2012 |
| Homecities Ltd | Hospitality | 2023 |
| Homes 4 Good Ltd | Real estate | 2023 |
| Homes Inspire Ltd | Real estate | 2026 |
| Homesnow (Innovation) Ltd | Manufacturing | 2026 |
| Homptons Pizza Ltd | Hospitality | 2024 |
| Honest Education Limited | Education | 2023 |
| Honey ZEE Ltd | Wholesale & retail | 2020 |
| Honor Care Limited | Health & social care | 2011 |
| Hoodieverse Limited | Wholesale & retail | 2023 |
| Hope and Compassion | Other services | 2010 |
| Hopespring Healthcare Ltd. | Health & social care | 2023 |
| Hoque and Sons WM Limited | Real estate | 2021 |
| Horizon (Essex) Limited | Manufacturing | 2025 |
| Horizon 12 Ltd | Hospitality | 2018 |
| Horizontal Investment Ltd | Real estate | 2026 |
| Horton Pathways Limited | Education | 2019 |
| Hot Shotz Ltd | Hospitality | 2024 |
| Hotak Building Services Ltd | Construction | 2024 |
| Hotpizzagroup Limited | Hospitality | 2023 |
| Hotstuff WB Ltd | Hospitality | 2024 |
| House N More Ltd | Wholesale & retail | 2021 |
| House of Nior Limited | Manufacturing | 2026 |
| Household Technologies UK Limited | Transport & logistics | 2019 |
| HP Building Repairs Ltd | Construction | 2025 |
| HPS Recyling Ltd | Water & waste | 2026 |
| HR8 Limited | Real estate | 2017 |
| HRS Taverns Ltd | Hospitality | 2022 |
| HS2 Solutions Ltd | Construction | 2020 |
| HSB 247 Couriers Ltd | Transport & logistics | 2026 |
| HSD IT Ltd | Construction | 2020 |
| HSD Systems Ltd | Construction | 2020 |
| HSG Midlands Limited | Financial services | 2026 |
| HSJ Carpets Limited | Wholesale & retail | 2025 |
| HSS Construction Ltd | Construction | 2021 |
| HSS Projects Limited | Real estate | 2014 |
| HSS Transport Ltd | Transport & logistics | 2025 |
| HTF Group Limited | Administrative & support | 2022 |
| HTH Property Investment Ltd | Real estate | 2026 |
| HTH Registrations Ltd | Wholesale & retail | 2025 |
| HTN Accountants Ltd | Professional & scientific | 2020 |
| Hubble Vision Ltd | Information & communication | 2023 |
| Hunbiz UK Ltd | Other services | 2026 |
| Hunter’S Executive Limited | Transport & logistics | 2025 |
| Hurst Green Roofing Ltd | Construction | 2025 |
| Hybrid BI Solutions Limited | Information & communication | 2009 |
| Hybrid Travel and Tours Limited | Administrative & support | 2016 |
| Hydrated Elephant Limited | Information & communication | 2023 |
| Hyper Locksmiths Ltd | Administrative & support | 2026 |
| I AM Lion Ltd | Wholesale & retail | 2022 |
| I B Foods Midlands Ltd | Wholesale & retail | 2015 |
| I Want Convenience Ltd | Manufacturing | 2012 |
| I&A Univers Company Ltd | Construction | 2020 |
| I. B. S. Bearings Limited | Wholesale & retail | 1984 |
| I.D.3 Limited | Manufacturing | 2026 |
| I8 Investments Group Ltd | Real estate | 2024 |
| Iamchoice Limited | Wholesale & retail | 2021 |
| IBN Consult Limited | Information & communication | 2021 |
| Ibrahim Trust | Other services | 2017 |
| Ibtihaj Logistics Limited | Construction | 2025 |
| Icare 24 Hour Staffing Limited | Administrative & support | 2022 |
| Ice Cream Company (UK) Limited | Manufacturing | 2009 |
| Icloud Property Ltd | Real estate | 2021 |
| Icon Property Management (UK) Ltd | Real estate | 2003 |
| Ideol Limited | Health & social care | 2017 |
| Idrizi Transport Ltd | Transport & logistics | 2021 |
| IG Construction Group Limited | Construction | 2025 |
| Ignorance Apparel Ltd | Wholesale & retail | 2024 |
| Igss Ltd | Wholesale & retail | 2021 |
| Ihsan Collective CIC | Other services | 2025 |
| IK Sidhu UK Ltd | Real estate | 2022 |
| Ikbal Corporate Ltd | Construction | 2019 |
| Ikeh Foods Ltd | Wholesale & retail | 2019 |
| Iknoor Transport Ltd | Transport & logistics | 2023 |
| Ikonik Motors Limited | Wholesale & retail | 2023 |
| Ikonik Prestige Car Rentals Ltd | Wholesale & retail | 2025 |
| Ileys Community CIC | Other services | 2023 |
| Illnotion Records Limited | Arts & recreation | 2017 |
| Illusion Design & Print Ltd | Manufacturing | 2021 |
| Illusionprint Limited | Manufacturing | 2013 |
| Illusionsign Limited | Manufacturing | 2013 |
| ILM Recycling Services C.I.C. | Water & waste | 2020 |
| Ilyes Restaurant Limited | Hospitality | 2022 |
| IM Holding Group Limited | Hospitality | 2026 |
| Iman Trans & Co Ltd | Transport & logistics | 2018 |
| Immaculate Shine Cleaning Services UK Ltd | Administrative & support | 2020 |
| Impact Glass and Glazing Ltd | Other services | 2019 |
| Imperial Gate Global Ltd | Wholesale & retail | 2026 |