| H'Artisan Wargrave Limited | Hospitality | 2019 |
| H.L.Thorne & Co.Limited | Manufacturing | 1955 |
| H.S.A.F Limited | Hospitality | 2023 |
| H3 Cars Limited | Wholesale & retail | 2025 |
| Haak Trans Limited | Transport & logistics | 2016 |
| Haan & Alan Limited | Wholesale & retail | 2024 |
| Habitat Procurements Ltd | Professional & scientific | 2023 |
| Hadassah Consulting and Management Ltd | Administrative & support | 2014 |
| Haden Safety Strategies Ltd | Professional & scientific | 2025 |
| Hadley's Steam Cleaning Ltd | Other services | 2005 |
| Hafid Furnitures Ltd | Wholesale & retail | 2022 |
| Hagley Portfolio Ltd | Real estate | 2017 |
| Hagley Road Valeting Services Ltd | Administrative & support | 2024 |
| Hair Chic Boutique Ltd | Other services | 2024 |
| Hair to 2 Go Limited | Other services | 2025 |
| Hakimi Dent Limited | Health & social care | 2021 |
| Hakuna Matata Property Ltd | Real estate | 2025 |
| Hall Surveying Limited | Professional & scientific | 2017 |
| Hallbridge Way Property Limited | Real estate | 2008 |
| Hallmark Connections Limited | Transport & logistics | 2002 |
| Hamid Nisar Limited | Administrative & support | 2019 |
| Hamitson Ltd | Professional & scientific | 2024 |
| Hamptonline Limited | Construction | 1992 |
| Hanafawy Ltd | Wholesale & retail | 2026 |
| Hand to Hand Kitchens & Bedrooms Ltd | Administrative & support | 2019 |
| Hand to Hand Windows & Doors Ltd | Manufacturing | 2019 |
| Hang Ming Ltd | Wholesale & retail | 2021 |
| Hanjra Construction Limited | Transport & logistics | 2025 |
| Hannam G Limited | Wholesale & retail | 2020 |
| Hannan L Limited | Wholesale & retail | 2025 |
| HAQ Beauty Limited | Wholesale & retail | 2016 |
| Haq's Group Ltd | Information & communication | 2023 |
| Harborne Fish & Chips Ltd | Hospitality | 2025 |
| Hardwood Flooring Specialists Bristol Limited | Manufacturing | 2023 |
| Hargate Midland Ltd | Wholesale & retail | 2025 |
| Harlee and Bailey Ltd | Real estate | 2018 |
| Harmattan Healthcare Limited | Health & social care | 2019 |
| Harmony Care and Support Solutions Limited | Health & social care | 2025 |
| Harnaaz Innovations Ltd | Wholesale & retail | 2024 |
| Harrington Grove Limited | Real estate | 2019 |
| Harris & Associates Financial Consultants Limited | Administrative & support | 2002 |
| Harry Auto Electrician Ltd | Wholesale & retail | 2024 |
| Harry Mayer Transport Limited | Transport & logistics | 2018 |
| Hartland Real Estate Ltd | Real estate | 2025 |
| Harveststar Limited | Administrative & support | 2001 |
| Hassan Electrician & Plumbing Ltd | Construction | 2026 |
| Hatchgate Holdings Limited | Real estate | 2018 |
| Hatfield LEE Consultancy Limited | Administrative & support | 2014 |
| Haul Assist Ltd | Wholesale & retail | 2022 |
| Haulbros Ltd | Transport & logistics | 2014 |
| Haulways (West Bromwich) Limited | Transport & logistics | 2006 |
| Haus of Blooms Limited | Professional & scientific | 2025 |
| Haven Oak Holdings Ltd | Financial services | 2024 |
| Haven Oak Property Developments Ltd | Real estate | 2024 |
| Hawk Truck Driving School Ltd | Education | 2025 |
| HAY Fisher Limited | Extraterritorial | 2016 |
| HAY Fisher Productions Limited | Professional & scientific | 1981 |
| Hazlewood Music Limited | Information & communication | 2025 |
| HB Shams Limited | Wholesale & retail | 2021 |
| HBP Logistics Limited | Transport & logistics | 2025 |
| HD Kitchens & Bedrooms Ltd | Construction | 2020 |
| Headland Engineering Developments Limited | Manufacturing | 1955 |
| Headley L Limited | Wholesale & retail | 2020 |
| Healthline Healthcare Limited | Health & social care | 2016 |
| Hearts in the Stand CIC | Health & social care | 2025 |
| Heathen Haulage Limited | Transport & logistics | 2019 |
| Heathfield Life Sciences Ltd | Professional & scientific | 2025 |
| Hedgelore Supplements Limited | Wholesale & retail | 2026 |
| Heer Style Ltd | Wholesale & retail | 2017 |
| Hellas Transport Ltd | Transport & logistics | 2026 |
| Helping Hand Community CIC | Hospitality | 2023 |
| Henx Fish Bar and Kebab House Limited | Hospitality | 2026 |
| Hercules Build Ltd | Construction | 2023 |
| Heritage MGS Ltd | Real estate | 2023 |
| Hewigo (UK) Limited | Manufacturing | 1991 |
| HEY VIP Limo UK Ltd | Transport & logistics | 2019 |
| Heze Limited | Construction | 2011 |
| HHR Property Management Ltd | Real estate | 2023 |
| Hhut Trading Ltd | Wholesale & retail | 2025 |
| Hiana Foundation (Hope in a New AGE) Limited | Arts & recreation | 2017 |
| High Spec Windows & Conservatories Ltd. | Construction | 2010 |
| High Spec Windows and Doors Ltd | Construction | 2026 |
| High Spec Windows and Home Improvements Limited | Construction | 2026 |
| High Street Convenience Store U.K. Ltd | Wholesale & retail | 2026 |
| Highbury Shopping Limited | Hospitality | 2024 |
| Highline Fenestration Limited | Construction | 2021 |
| Highness Beauty Ltd | Other services | 2025 |
| Highpoint Motor Centre Ltd | Wholesale & retail | 2021 |
| Highpoint Motor Company Ltd | Wholesale & retail | 2024 |
| Highway Haulage Ltd | Transport & logistics | 2021 |
| Hiltland Consultancy Limited | Professional & scientific | 2023 |
| Hilvar Limited | Administrative & support | 2025 |
| Hinks Haulage HH Logistics Limited | Transport & logistics | 2003 |
| Hisk Properties Ltd | Construction | 2022 |
| HJ Raju Real Estates Ltd | Real estate | 2026 |
| HJB Builders Ltd | Construction | 2022 |
| HK Healthcare Group Ltd | Wholesale & retail | 2026 |
| HKK Enterprises Ltd | Transport & logistics | 2026 |
| HKK Investments Ltd | Real estate | 2023 |
| HLG Transport Ltd | Transport & logistics | 2026 |