| HBC Limited | Construction | 2020 |
| Hbcg Ltd | Real estate | 2025 |
| HBD City Court Limited | Real estate | 2021 |
| HBD DEV Co 1 Limited | Construction | 2022 |
| HBD Golden Valley Limited | Construction | 2022 |
| HBD GP Limited | Real estate | 2024 |
| HBD Ltd | Manufacturing | 2023 |
| HBD Spark Limited | Real estate | 2024 |
| HBD Summerhill Limited | Real estate | 2021 |
| Hbgp Limited | Real estate | 2018 |
| Hbhb Limited | Education | 2020 |
| Hbheating Ltd | Real estate | 2025 |
| HBL Physiotherapy Ltd | Health & social care | 2025 |
| HBR Propco Limited | Real estate | 2014 |
| HC Group Cleaning Ltd | Administrative & support | 2025 |
| HC Taste Limited | Hospitality | 2024 |
| Hcare Olga Limited | Public administration | 2018 |
| HCD Architecture Limited | Professional & scientific | 2010 |
| HCD Design Limited | Professional & scientific | 2010 |
| HCD Environmental Limited | Professional & scientific | 2010 |
| HCD Interior Design Limited | Professional & scientific | 2010 |
| HCD Masterplanning Limited | Professional & scientific | 2010 |
| HCD Planning Limited | Professional & scientific | 2010 |
| HCD Project Management Limited | Construction | 2010 |
| HCD Projects Limited | Professional & scientific | 2010 |
| HCD Structural Engineering Limited | Professional & scientific | 2010 |
| Hcff Holdings Limited | Financial services | 2024 |
| HCGS8 Ltd | Wholesale & retail | 2023 |
| HCGU1 Ltd | Health & social care | 2025 |
| HCGU2 Ltd | Health & social care | 2025 |
| HCGU3 Ltd | Health & social care | 2025 |
| HCGU4 Ltd | Health & social care | 2025 |
| Hchp Consulting Limited | Professional & scientific | 2008 |
| Hclc Locum Ltd | Wholesale & retail | 2022 |
| HCM Plant Hire Limited | Construction | 2025 |
| Hcma Group Ltd | Wholesale & retail | 2026 |
| HCS Remora Limited | Information & communication | 2000 |
| Hcsc Properties Limited | Real estate | 2021 |
| HD Auto Ltd | Arts & recreation | 2024 |
| HD Bars Ltd | Professional & scientific | 2026 |
| HD Cheema Properties Ltd | Real estate | 2025 |
| HD Ground and Garden Maintenance Services Limited | Administrative & support | 2024 |
| HD Haulage Services Limited | Transport & logistics | 2025 |
| HD Holdings (Northern) Ltd | Construction | 2023 |
| HD Holdings II Limited | Financial services | 2010 |
| HD Newco Limited | Financial services | 2014 |
| HD Residentials Ltd | Construction | 2025 |
| HD Sports Ltd | Manufacturing | 1996 |
| Hdhq-Bathrooms Ltd | Wholesale & retail | 2020 |
| Hdhq-Bedrooms Ltd | Wholesale & retail | 2020 |
| Hdhq-Manufacturing Ltd | Manufacturing | 2020 |
| Hdhq-Properties Ltd | Real estate | 2021 |
| Hdia Ltd | Education | 2022 |
| Hdif Promotions Limited | Administrative & support | 2010 |
| HDM Solar (Wholesale) Ltd | Wholesale & retail | 2023 |
| Hdobiro Limited | Health & social care | 2025 |
| HE 888 Ltd | Hospitality | 2021 |
| Head Leisure Ltd | Hospitality | 2024 |
| Head Properties Limited | Other services | 2015 |
| Head Start Neurological Physiotherapy Limited | Health & social care | 2017 |
| Head to TOE Renovations Limited | Manufacturing | 2018 |
| Headford Mews Management Limited | Households | 1995 |
| Heading 4 Goals Limited | Education | 2025 |
| Headland Consulting Ltd | Information & communication | 2018 |
| Headliners Insight & Strategy Ltd | Professional & scientific | 2025 |
| Headlines Elite Limited | Other services | 2010 |
| Headlite Ltd | Wholesale & retail | 2025 |
| Headpoint Limited | Professional & scientific | 2024 |
| Headquarters Hair & Beauty Limited | Other services | 2016 |
| Headspace Arts Ltd | Education | 2024 |
| Heal+H Limited | Health & social care | 2018 |
| Heale Shine Limited | Wholesale & retail | 2025 |
| Healey Automobile Consultants Limited | Administrative & support | 1955 |
| Healey Sports Cars Ltd | Manufacturing | 2005 |
| Health and Fitness South Yorkshire Ltd | Arts & recreation | 2018 |
| Health Connective Ltd | Health & social care | 2020 |
| Health IS Wealth Group Ltd | Health & social care | 2016 |
| Health Science Nutrition Limited | Professional & scientific | 2011 |
| Health TEC Services Limited | Health & social care | 2017 |
| Healthcare Access Ltd | Health & social care | 2013 |
| Healthcare Audit Consultants Limited | Health & social care | 2004 |
| Healthcare Direct 2U Ltd | Health & social care | 2024 |
| Healthcare Information Consultancy Ltd | Information & communication | 2005 |
| Healthcare Transformation Services International Limited | Health & social care | 2026 |
| Healthdirect Supplies Ltd | Manufacturing | 2025 |
| Healthmaster Ltd | Health & social care | 2014 |
| Healthtree Care Ltd | Health & social care | 2025 |
| Healthware Limited | Information & communication | 2001 |
| Healthwise Care Limited | Health & social care | 2013 |
| Healthwork Group Limited | Health & social care | 2014 |
| Healthy Feet Limited | Health & social care | 1997 |
| Healthy Living Pharmacy Limited | Wholesale & retail | 2004 |
| Healthy Performance Limited | Health & social care | 2006 |
| Healthy Smiles by Gemma Ltd | Health & social care | 2025 |
| Healthy Toys Limited | Wholesale & retail | 2025 |
| Hear Clear WAX People Limited | Wholesale & retail | 2025 |
| Hearing & Tinnitus Services Limited | Health & social care | 1980 |
| Hearing Loop Ltd | Wholesale & retail | 2025 |
| Hearing Therapy Ltd | Wholesale & retail | 2019 |
| Heart Care Ltd | Health & social care | 2025 |