| Hill Top Fabrications Co (1998) Ltd | Manufacturing | 1983 |
| Hill Top Haulage Limited | Real estate | 2010 |
| Hill Top Midlands Ltd | Wholesale & retail | 2025 |
| Hilltop Barbers Ltd | Other services | 2020 |
| Hilltop News and Convenience Limited | Wholesale & retail | 2026 |
| Hilltop Pizza and Grill Ltd | Hospitality | 2025 |
| Hilltop Pizza Ltd | Hospitality | 2026 |
| Hilton Estate Solutions Limited | Hospitality | 2025 |
| Hilton GAS Services Ltd | Construction | 2023 |
| Himmat Distribution Ltd | Transport & logistics | 2025 |
| Hinal Engineering Ltd | Professional & scientific | 2015 |
| Hiwa Pizzeria Ltd | Wholesale & retail | 2018 |
| HK Service Transport Limited | Transport & logistics | 2020 |
| HK Shergill Locum Ltd | Professional & scientific | 2023 |
| HN Hospitality Ltd | Hospitality | 2022 |
| HO HOI SUM Ltd | Hospitality | 2012 |
| Hobby Building Construction Ltd | Construction | 2018 |
| Holdco 940 Limited | Financial services | 2021 |
| Holiday Sleep Ltd | Manufacturing | 2022 |
| Holistic by RH Ltd | Transport & logistics | 2025 |
| Holland Soil UK Ltd | Agriculture & fishing | 2020 |
| Holloway Plastics Limited | Manufacturing | 1987 |
| Holmark Properties Limited | Professional & scientific | 1995 |
| Holo Investments Ltd | Real estate | 2024 |
| Holturn Ltd | Hospitality | 2021 |
| Home After Nine Ltd | Wholesale & retail | 2021 |
| Home Bright Windows UK Ltd | Construction | 2017 |
| Homes Inn Limited | Real estate | 2017 |
| Honeybelle Realty Ltd | Real estate | 2024 |
| Hong Kong (464) Ltd | Hospitality | 2020 |
| HOP Pole 32 Ltd | Hospitality | 2021 |
| Horizon Transport Ltd | Transport & logistics | 2022 |
| Horsepower Finance UK Limited | Wholesale & retail | 2018 |
| Hortons Motorcycles Limited | Wholesale & retail | 2013 |
| Hothi Logistics Ltd | Transport & logistics | 2025 |
| House and Adverts Limited | Professional & scientific | 2019 |
| House of Abbey Limited | Wholesale & retail | 2025 |
| House of Anastasia Limited | Wholesale & retail | 2026 |
| House of the Needy CIC | Other services | 2025 |
| Hparkes Limited | Other services | 2024 |
| HR Accountants (A/E) Ltd | Professional & scientific | 2018 |
| HR Accountants B'Ham Limited | Professional & scientific | 2015 |
| HR Accountants Ltd | Professional & scientific | 2022 |
| HR Auto Point Ltd | Wholesale & retail | 2024 |
| HR Brothers Property Ltd | Real estate | 2023 |
| HR Building Supplies Ltd | Wholesale & retail | 2026 |
| HR Gaming Limited | Wholesale & retail | 2025 |
| HR Investment Properties Ltd | Real estate | 2018 |
| HR Investment Properties Midlands Ltd | Real estate | 2020 |
| HR32 Ltd | Transport & logistics | 2020 |
| HRA Transport Ltd | Transport & logistics | 2024 |
| HRL Distribution Ltd | Wholesale & retail | 2026 |
| HS Lawyers Limited | Professional & scientific | 2013 |
| HS Sweets & Catering Ltd | Wholesale & retail | 2024 |
| HS Transport and Courier Ltd | Transport & logistics | 2025 |
| HS1 Subs Ltd | Hospitality | 2017 |
| HSC Courier Ltd | Transport & logistics | 2021 |
| Hsdda Ltd | Real estate | 2004 |
| Hsec Courier Ltd | Transport & logistics | 2023 |
| HSG Transport Services Ltd | Transport & logistics | 2026 |
| HSG UK Trading Ltd | Wholesale & retail | 2025 |
| HSH Courier Services Ltd | Transport & logistics | 2025 |
| Hsjk Convenience Store Ltd | Wholesale & retail | 2022 |
| HSK & Sons Ltd | Real estate | 2023 |
| HSK Developments Ltd | Real estate | 2025 |
| HSL Property Group Limited | Real estate | 2022 |
| Hsmk Properties Ltd | Real estate | 2024 |
| HSP Building Services Limited | Construction | 2017 |
| Hspdistros Ltd | Wholesale & retail | 2026 |
| HSS Estates Limited | Real estate | 2011 |
| HSS Limited | Real estate | 2024 |
| HSS Properties 1 Limited | Real estate | 2018 |
| HSS Properties 2 Limited | Real estate | 2018 |
| HT 2000 EOT Limited | Financial services | 2024 |
| HT 2000 Limited | Administrative & support | 2010 |
| HT Matharu Roofing Services Ltd | Construction | 2023 |
| HT Property Holdings Ltd | Real estate | 2026 |
| Htak Properties Ltd | Real estate | 2024 |
| HTE Productions and Events Limited | Professional & scientific | 2026 |
| Hub Engineering Co. Limited(The) | Manufacturing | 1975 |
| Human A.I and Machine Ltd | Information & communication | 2018 |
| Humble Construction Plus Ltd | Construction | 2026 |
| Hunar Fones Ltd | Wholesale & retail | 2020 |
| Hundal Global Services Ltd | Transport & logistics | 2025 |
| Hundal Investments Ltd | Real estate | 2026 |
| Hunger Point Ltd | Hospitality | 2026 |
| Husnain G Services Ltd | Wholesale & retail | 2022 |
| HV Property Ltd | Real estate | 2024 |
| HYY London Ltd | Manufacturing | 2020 |
| I & S Industrial Door Services Limited | Manufacturing | 2005 |
| I GET Results Fitness Ltd | Arts & recreation | 2022 |
| I J M Builder Ltd | Construction | 2018 |
| IA Optics Ltd | Health & social care | 2024 |
| IA RE Ltd | Real estate | 2025 |
| IAN Mcardle Limited | Wholesale & retail | 1970 |
| IAN Smith (Stationers) Limited | Extraterritorial | 2009 |
| IAN Smith Office Interiors Ltd | Extraterritorial | 2010 |
| IAN Smith Office Supplies Limited | Extraterritorial | 2015 |
| IBC Trading Limited | Wholesale & retail | 2020 |
| Ibrick Builders Ltd | Construction | 2022 |