| Hero Cars Ltd | Wholesale & retail | 2024 |
| Heroes Honey Ltd | Health & social care | 2023 |
| Herringthorpe Food Ltd | Hospitality | 2026 |
| Herringthorpe Limited | Professional & scientific | 2024 |
| Hestia Collection Limited | Wholesale & retail | 2019 |
| Hestia Life Ltd | Wholesale & retail | 2020 |
| Hetherington Construction Ltd | Construction | 2012 |
| Hewitson & Harker Limited | Professional & scientific | 2002 |
| HEY YOU Ltd. | Other services | 2015 |
| Heyyy Ltd | Information & communication | 2020 |
| HFA Travel Ltd | Transport & logistics | 2024 |
| HG Painting & Decoration Limited | Construction | 2020 |
| HGV Startpoint Ltd | Administrative & support | 2022 |
| HI TEC Autos Repairs Limited | Wholesale & retail | 2025 |
| Hi-Tec-Autos Limited | Wholesale & retail | 2014 |
| Hi-Tech Installations Limited | Construction | 2011 |
| Hiaa Solutions Ltd | Information & communication | 2021 |
| Hickling Holdings Limited | Financial services | 2023 |
| Hickling Joinery Limited | Construction | 2026 |
| Hicks Management Services Ltd | Other services | 2021 |
| Hidden MEN CIC | Health & social care | 2025 |
| HIG Consultancy Limited | Real estate | 2019 |
| High Aims Ltd | Other services | 2011 |
| High Avatar Ltd | Wholesale & retail | 2022 |
| High House Rotherham Ltd | Hospitality | 2019 |
| High Oakham Park Management Limited | Households | 2018 |
| High Spec Fire Protection Limited | Construction | 2025 |
| High Spec Plastering Limited | Construction | 2018 |
| High Street Healthcare Limited | Wholesale & retail | 2019 |
| High Street Trade Centre Limited | Wholesale & retail | 2025 |
| High-Fix Interiors Ltd | Construction | 2026 |
| Highbury House Taverns Ltd | Hospitality | 2025 |
| Highcare Cargo Ltd | Transport & logistics | 2022 |
| Highfield Automotive Ltd | Transport & logistics | 2025 |
| Highfield Court (Greasbrough) Management Company Limited | Real estate | 2007 |
| Highgate Club Ltd | Hospitality | 2023 |
| Highgate Club Property Holdings Limited | Real estate | 2010 |
| Highgate Contractors Ltd | Construction | 2024 |
| Highgate Lane Goldthorpe Management Company Limited | Administrative & support | 2004 |
| Highgate Motors Ltd | Wholesale & retail | 2026 |
| Highgate Sports and Social Club Limited | Other services | 2013 |
| Highgate Stadium Auctions Ltd | Wholesale & retail | 2024 |
| Highgreen Services Ltd | Manufacturing | 2019 |
| Highmark Engineering Services Ltd | Professional & scientific | 2026 |
| Highstone Motors Ltd | Wholesale & retail | 2010 |
| Highstones Estates Ltd | Real estate | 2020 |
| Highway Management Services (UK) Limited | Professional & scientific | 2004 |
| Highway Recovery Limited | Wholesale & retail | 1981 |
| Highwaysxp Limited | Administrative & support | 2014 |
| Hill View Court (Tickhill) Management Company Limited | Households | 2021 |
| Hillfoot Developments (UK) Ltd. | Manufacturing | 2002 |
| Hillforcare Services Limited | Administrative & support | 2016 |
| Hillsborough Business Park Limited | Financial services | 2025 |
| Hilltop Brewery TAP Limited | Hospitality | 2018 |
| Hilson Botanics Ltd | Wholesale & retail | 2021 |
| Hilson Consulting and Services Limited | Hospitality | 2026 |
| Himalayan Thurcroft Ltd | Hospitality | 2017 |
| Hina Locum Ltd | Wholesale & retail | 2025 |
| Hinchliffe Investments Limited | Administrative & support | 2003 |
| Hinchliffe's Heating and Property Management Limited | Construction | 2025 |
| Hine Consultancy Limited | Professional & scientific | 2015 |
| Hine Labels Group Limited | Manufacturing | 2025 |
| Hine Labels Holdings Limited | Financial services | 2025 |
| Hine Labels Limited | Manufacturing | 1992 |
| Hirak Limited | Hospitality | 2020 |
| Hird Warehousing and Processing Ltd | Transport & logistics | 2017 |
| Hishaam Ltd | Professional & scientific | 2022 |
| Hisham Limited | Transport & logistics | 2019 |
| History & Heraldry Developments Limited | Financial services | 2026 |
| History & Heraldry Group Limited | Wholesale & retail | 2026 |
| History & Heraldry Holdings Limited | Professional & scientific | 2012 |
| History & Heraldry Limited | Wholesale & retail | 1996 |
| Hitchens Hire Ltd | Transport & logistics | 2016 |
| Hiziz Ltd | Professional & scientific | 2023 |
| HK Contractors Limited | Professional & scientific | 2008 |
| HK Foods Express Ltd | Hospitality | 2025 |
| HKC (Bramley) Ltd | Hospitality | 2021 |
| HKH Carpets Ltd | Wholesale & retail | 2025 |
| HKH Management Services Ltd | Administrative & support | 2007 |
| HLM Haulage Ltd | Transport & logistics | 2020 |
| HLM Trading Limited | Other services | 2019 |
| HLP Physiotherapy Ltd | Health & social care | 2023 |
| HM & TM Accountant Ltd | Professional & scientific | 2022 |
| HM Atelier Ltd | Professional & scientific | 2021 |
| HM Takeaway Ltd | Hospitality | 2020 |
| HMH Support Services Ltd | Public administration | 2022 |
| HMJ Property Ltd | Real estate | 2022 |
| HML Auto's Ltd | Wholesale & retail | 2014 |
| HML Lettings Limited | Real estate | 2025 |
| Hmmm Hair Limited | Other services | 2019 |
| HMO Engineering Services Ltd | Wholesale & retail | 2026 |
| HN Management Consultancy Ltd | Information & communication | 2016 |
| Hobson Entertainment Services Limited | Arts & recreation | 2018 |
| Hobson Fabrications Limited | Manufacturing | 2013 |
| Hodkinson Corporate Limited | Real estate | 2025 |
| Hoey Diesels Ltd | Manufacturing | 2012 |
| HOFFMANN2 Limited | Real estate | 2018 |
| HOG Roast Bella Ltd | Hospitality | 2023 |
| Hogton & Holt Drylining Limited | Construction | 2014 |
| Hogton & Holt Group Limited | Construction | 2025 |