| Hillbourne Holdings Ltd | Real estate | 2021 |
| Hillcity Investments Ltd | Education | 2013 |
| Hillcom Ltd | Professional & scientific | 2023 |
| Hillcrest & Louis Homes Limited | Construction | 2015 |
| Hillcrest Golcar 2 Management Limited | Real estate | 2022 |
| Hillcrest Granary Yard Ltd | Real estate | 2016 |
| Hillcrest Health Care Ltd | Health & social care | 2025 |
| Hillcrest Homes (Altair) Limited | Real estate | 2016 |
| Hillcrest Homes (EST. 1985) Limited | Real estate | 2014 |
| Hillcrest Homes (Hurst Green) Ltd | Construction | 2017 |
| Hillcrest Homes (Macclesfield) Limited | Real estate | 2020 |
| Hillcrest Homes Hurst Green Management Company Limited | Real estate | 2017 |
| Hillcrest Homes Woodlands Limited | Real estate | 2017 |
| Hillcrest Meridian Ltd | Extraterritorial | 2025 |
| Hiller Cunningham Limited | Hospitality | 2009 |
| Hillfoot Electrical Distributors Ltd | Wholesale & retail | 2010 |
| Hillgate Properties Ltd | Real estate | 2025 |
| Hillgate Stores Limited | Wholesale & retail | 2025 |
| Hillhouse Remediation Limited | Real estate | 2004 |
| Hilliard Ground Engineering (UK) Ltd | Professional & scientific | 2017 |
| Hillin Holdings Limited | Administrative & support | 2017 |
| Hilling Healthcare Limited | Health & social care | 2022 |
| Hillingdon Estates Limited | Real estate | 2019 |
| Hillpark Estates Limited | Administrative & support | 2016 |
| Hills Car Refinishing Ltd | Wholesale & retail | 2021 |
| Hills Financial Limited | Professional & scientific | 2016 |
| Hills Middleton Ltd | Hospitality | 2025 |
| Hills Property Solutions Ltd | Real estate | 2012 |
| Hills Prospect Holdings Ltd | Wholesale & retail | 2015 |
| Hills Prospect PLC | Wholesale & retail | 2001 |
| Hills SSM Ltd | Wholesale & retail | 2018 |
| Hills Swinton Limited | Real estate | 2016 |
| Hillsborough Real Estates (NO.1) Limited | Professional & scientific | 2016 |
| Hillsborough Real Estates (NO.2) Limited | Professional & scientific | 2016 |
| Hillside Apartments Ltd | Hospitality | 2025 |
| Hillside Estate M/C Ltd | Real estate | 2024 |
| Hillside Properties Group Ltd | Real estate | 2025 |
| Hillside Property Holdings Limited | Real estate | 2016 |
| Hillsmere Group Ltd | Professional & scientific | 2026 |
| Hillsome Hosting Limited | Real estate | 2024 |
| Hillsome Limited | Construction | 2019 |
| Hilltop Employee Share Ownership Trust Limited | Financial services | 2023 |
| Hilltop Finance Limited | Financial services | 2014 |
| Hilltop Leisure Ltd | Hospitality | 2026 |
| Hilltop North Limited | Construction | 2024 |
| Hilltop Properties & Investments Limited | Real estate | 2025 |
| Hilltop Property Group Limited | Real estate | 2025 |
| Hilltop South Limited | Construction | 2024 |
| Hillview Court Management Company (Manchester) Limited | Households | 1979 |
| Hillwell Estates Ltd | Real estate | 2023 |
| Hillyard Civil Engineering Limited | | 1989 |
| Hillyer Roberts & Associates Limited | Information & communication | 2003 |
| Hilmara International Private Limited | Construction | 2025 |
| Hilmer England 1 Limited | Wholesale & retail | 2022 |
| Hilmer England 10 Limited | Wholesale & retail | 2023 |
| Hilmer England 11 Limited | Wholesale & retail | 2023 |
| Hilmer England 12 Limited | Wholesale & retail | 2023 |
| Hilmer England 13 Limited | Wholesale & retail | 2023 |
| Hilmer England 14 Limited | Wholesale & retail | 2023 |
| Hilmer England 15 Limited | Wholesale & retail | 2023 |
| Hilmer England 16 Limited | Wholesale & retail | 2023 |
| Hilmer England 17 Limited | Wholesale & retail | 2023 |
| Hilmer England 18 Limited | Wholesale & retail | 2023 |
| Hilmer England 19 Limited | Wholesale & retail | 2023 |
| Hilmer England 2 Limited | Wholesale & retail | 2022 |
| Hilmer England 20 Limited | Wholesale & retail | 2023 |
| Hilmer England 21 Limited | Wholesale & retail | 2023 |
| Hilmer England 22 Limited | Wholesale & retail | 2023 |
| Hilmer England 23 Limited | Wholesale & retail | 2023 |
| Hilmer England 24 Limited | Wholesale & retail | 2023 |
| Hilmer England 25 Limited | Wholesale & retail | 2023 |
| Hilmer England 26 Limited | Wholesale & retail | 2023 |
| Hilmer England 27 Limited | Wholesale & retail | 2023 |
| Hilmer England 28 Limited | Wholesale & retail | 2024 |
| Hilmer England 29 Limited | Wholesale & retail | 2024 |
| Hilmer England 3 Limited | Wholesale & retail | 2022 |
| Hilmer England 30 Limited | Wholesale & retail | 2024 |
| Hilmer England 31 Limited | Wholesale & retail | 2024 |
| Hilmer England 32 Limited | Wholesale & retail | 2024 |
| Hilmer England 33 Limited | Wholesale & retail | 2024 |
| Hilmer England 34 Limited | Wholesale & retail | 2024 |
| Hilmer England 35 Limited | Wholesale & retail | 2024 |
| Hilmer England 36 Limited | Wholesale & retail | 2024 |
| Hilmer England 37 Limited | Wholesale & retail | 2024 |
| Hilmer England 4 Limited | Wholesale & retail | 2022 |
| Hilmer England 5 Limited | Wholesale & retail | 2022 |
| Hilmer England 6 Limited | Wholesale & retail | 2023 |
| Hilmer England 7 Limited | Wholesale & retail | 2023 |
| Hilmer England 8 Limited | Wholesale & retail | 2023 |
| Hilmer England 9 Limited | Wholesale & retail | 2023 |
| Hilpen Ltd | Professional & scientific | 2016 |
| Hilrox Ltd | Wholesale & retail | 2025 |
| Hils Hospitality Ltd | Hospitality | 2020 |
| Hils Studio Ltd | Other services | 2025 |
| Hilsden Farm Limited | Agriculture & fishing | 1984 |
| Hilston House Management Company Limited | Households | 1994 |
| Hilti (Gt.Britain) Limited | Wholesale & retail | 1950 |
| Hilto Limited | Wholesale & retail | 2022 |
| Hilton 51 Ltd | Real estate | 2018 |
| Hilton Cleaning Contractors Limited | Administrative & support | 2023 |