| HI - Flow Drains Ltd | Water & waste | 2024 |
| HI Tech Construction Midland Ltd | Real estate | 2021 |
| HI Volt Electrical Ltd | Construction | 2025 |
| Hi-Capa Hub Ltd | Manufacturing | 2022 |
| Hi-Spec Glazing Limited | Professional & scientific | 2017 |
| Hi-Tech Generation Limited | Information & communication | 2025 |
| Hiak Limited | Real estate | 2021 |
| Hiccup Theatre | Arts & recreation | 2018 |
| Hideout Properties Ltd | Real estate | 2024 |
| Higgins Civils Ltd | Construction | 2024 |
| High Calibre Education Ltd | Real estate | 2020 |
| High Eagle Enterprises Ltd | Education | 2016 |
| High Hopes Nurseries Ltd | Education | 2012 |
| High Hopes Project CIC | Arts & recreation | 2026 |
| High House Nursery Limited | Education | 1993 |
| High Lane Design Limited | Professional & scientific | 2012 |
| High Oakham Properties Limited | Real estate | 2024 |
| High Peak Sales Consultants Ltd | Extraterritorial | 2019 |
| High Performance Driving School Ltd | Other services | 2017 |
| High Reach Interiors Ltd | Construction | 2025 |
| High Trees Derby Limited | Real estate | 2023 |
| HIGH5 Recruitment Limited | Administrative & support | 2015 |
| Higham Brothers Limited | Construction | 2006 |
| Higham Fields Management Company Ltd | Households | 2022 |
| Highfield Aesthetics Limited | Health & social care | 2019 |
| Highfield Investments Derby Ltd | Real estate | 2021 |
| Highfield Joinery and Building Services Limited | Construction | 2003 |
| Highfield Properties Limited | Real estate | 2013 |
| Highfields (Tetbury) Management Company Limited | Households | 2016 |
| Highfields Developments Limited | Construction | 2006 |
| Highfields Holdings Ltd | Financial services | 2024 |
| Highfields Print Ltd. | Manufacturing | 2017 |
| Highgrove Fields (Sileby) Management Company Limited | Households | 2020 |
| Highland Kebabs Ltd | Hospitality | 2025 |
| Highlever Property Ltd | Real estate | 2026 |
| Highley Rentals & Homes Ltd | Real estate | 2022 |
| Highmark Property Limited | Real estate | 2025 |
| Highplex Estates Limited | Construction | 2019 |
| Highquality Superior Telecoms Ltd | Information & communication | 2023 |
| HIGUYS2022 Ltd | Hospitality | 2022 |
| Hijri Homes Limited | Wholesale & retail | 2022 |
| Hilary Farrington Executive Coaching Ltd | Professional & scientific | 2025 |
| Hilbroke House Ltd | Other services | 2018 |
| Hilbroke Ltd | Other services | 2018 |
| Hill and Hollow Investments Ltd | Real estate | 2025 |
| Hill Bros.(Nottingham)Limited | Construction | 1946 |
| Hill Clinical Consulting Limited | Professional & scientific | 2024 |
| Hill Farm Caravan & Camping Park Limited | Hospitality | 2015 |
| Hill Farm Residents Management Company Limited | Households | 2025 |
| Hill Haus Ltd | Real estate | 2018 |
| Hill Side Horizons Limited | Professional & scientific | 2016 |
| Hill Top Grange Ltd | Hospitality | 2025 |
| Hill Tree Care Limited | Agriculture & fishing | 2023 |
| Hillcliff View Limited | Construction | 2023 |
| Hillcreste Building Services Limited | Construction | 1998 |
| Hilliard Groundworks Limited | Construction | 2024 |
| Hillpark Holdings Ltd | Financial services | 2024 |
| Hillside Health Clinics Ltd | Other services | 2017 |
| Hillside House Nursery Limited | Education | 2004 |
| Hillside IT Consultancy Limited | Information & communication | 2020 |
| Hillside Leisure UK Limited | Wholesale & retail | 2009 |
| Hillway Developments Ltd | Real estate | 2025 |
| Hilton Cars and Minibus Services Ltd | Transport & logistics | 2025 |
| Hilton Dental Care (Derby) Limited | Health & social care | 2024 |
| Hilton Garage Ltd | Wholesale & retail | 1978 |
| Hilton Industrial Estate Limited | Real estate | 1984 |
| Hilton Property Ltd | Real estate | 2024 |
| Hilton Roofing Services Ltd | Construction | 2025 |
| Hilton Stock Control Limited | Professional & scientific | 2006 |
| Hilton Stores (UK) Ltd | Wholesale & retail | 2014 |
| Hilton Tyre Services Limited | Wholesale & retail | 2024 |
| Hilton Valley Estate Management Company Limited | Households | 2016 |
| Hiltons Airport Transfer Limited | Transport & logistics | 2019 |
| Hina Jewellers Ltd | Wholesale & retail | 2024 |
| Hinch Electric’S Limited | Construction | 2024 |
| Hinchley Consulting Limited | Professional & scientific | 2009 |
| Hindenburg Ltd | Extraterritorial | 2012 |
| Hinds Figures Ltd | Wholesale & retail | 1998 |
| Hinkley Homes HMO Ltd | Real estate | 2025 |
| Hinkley Homes Ltd | Real estate | 2021 |
| Hinkley Homes Management Ltd | Real estate | 2022 |
| Hinkley Homes Stays Ltd | Real estate | 2026 |
| Hinksons Electrical Ltd | Real estate | 2017 |
| Hinksons Properties Ltd | Real estate | 2025 |
| Hippo Guitars Ltd | Wholesale & retail | 2023 |
| Hire Drive Return Limited | Administrative & support | 2024 |
| Hirst Electrical Services Ltd | Construction | 2019 |
| Hiscox Cases Limited | Wholesale & retail | 1995 |
| Hiscox Distribution Ltd | Wholesale & retail | 2025 |
| Hitchy's Engineering Limited | Manufacturing | 2018 |
| Hitec Construction Limited | Construction | 2025 |
| Hitt Properties Limited | Real estate | 2019 |
| Hive Development Holdings Ltd | Construction | 2018 |
| Hive Developments (Midlands) Limited | Financial services | 2015 |
| Hive Developments Construction Limited | Construction | 2021 |
| Hive Developments Ltd | Construction | 2018 |
| Hizil Abdullah Ltd | Other services | 2025 |
| HJ Brown Limited | Other services | 1990 |
| HJ Brownies Ltd | Hospitality | 2025 |
| HJ Pinnacle Ltd | Professional & scientific | 2018 |