| Hambleton House Ltd | Hospitality | 2025 |
| Hamilton Hargreaves Limited | Real estate | 2012 |
| Hamilton International Training Limited | Education | 2025 |
| Hammerhead Events Ltd | Arts & recreation | 2017 |
| Hamza Mart Ltd | Wholesale & retail | 2025 |
| Hanan Ahmad Ltd | Wholesale & retail | 2025 |
| Hanna Pharma Ltd | Health & social care | 2017 |
| Hansai Consulting Limited | Professional & scientific | 2014 |
| Hanson Services (Trepple P) Ltd | Other services | 2020 |
| Happy Days Brookhill Cafe Limited | Hospitality | 2020 |
| Happy Decoration Ltd | Construction | 2021 |
| Happy Hearts Childcare the Nursery Ltd | Health & social care | 2024 |
| Happy Living Property Management Limited | Real estate | 2024 |
| Happy Rock Property Limited | Real estate | 2024 |
| Happy Seasons Trading Ltd | Information & communication | 2025 |
| Harbel Consultants Ltd | Professional & scientific | 2026 |
| Harborough Portas Financial Services Ltd | Financial services | 2013 |
| Harch Consulting Ltd | Professional & scientific | 2026 |
| Hard Chrome Plating and Grinding Limited | Manufacturing | 2008 |
| Hard Surface Repair Experts (Nottinghamshire) Limited | Construction | 2021 |
| Hardwick Consultancy Limited | Professional & scientific | 2017 |
| Hardwick Grange (Glapwell) Management Limited | Households | 2016 |
| Hari-Jai Limited | Wholesale & retail | 2010 |
| Harley Associates Limited | Administrative & support | 2009 |
| Harmony Health&Beauty House Ltd | Other services | 2011 |
| Harmony House Properties Ltd | Real estate | 2020 |
| Harness Norton Ltd | Real estate | 2026 |
| Harold Savage (Butchers) Limited | Agriculture & fishing | 1956 |
| Harold Savage (Farmers & Butchers) Limited | Agriculture & fishing | 1956 |
| Harrington Factory Company Limited(The) | Real estate | 1885 |
| Harris Freight Management Limited | Transport & logistics | 2025 |
| Harrowers London Limited | Health & social care | 2021 |
| Hart Planning Services Ltd | Professional & scientific | 2018 |
| Hart Safety and Compliance Solutions Limited | Professional & scientific | 2021 |
| Harvest Property Company Limited | Real estate | 1998 |
| Harvest Property Developments Ltd | Construction | 2018 |
| Harveys Autocentre Limited | Real estate | 2003 |
| Haus of Berry Limited | Other services | 2025 |
| Haven Healthcare Group Ltd | Public administration | 2022 |
| Haven Supported Housing Limited | Hospitality | 2014 |
| Hawke Living (Barton in Fabis) Ltd | Construction | 2020 |
| Hawker 4000 Limited | Transport & logistics | 2013 |
| HAY Grill Ltd | Hospitality | 2018 |
| Haye Electrical Limited | Construction | 2020 |
| Haye Maintenance Ltd. | Construction | 2010 |
| Haymans Electrical Ltd | Construction | 2018 |
| Haynes Care Limited | Health & social care | 2015 |
| Haynes Seven Engineering Ltd | Professional & scientific | 2025 |
| Hayre Convenience Store Limited | Wholesale & retail | 2018 |
| Hazel & Jasvee Limited | Hospitality | 2024 |
| Hbcva 2 Properties Limited | Real estate | 2025 |
| Hbcva Properties Limited | Real estate | 2024 |
| HC Haulage Ltd | Transport & logistics | 2025 |
| HCF Snagging Company Limited | Construction | 2023 |
| HD Tree Services Ltd | Agriculture & fishing | 2024 |
| HDH Productions Limited | Administrative & support | 2017 |
| Heal Consulting Ltd | Professional & scientific | 2025 |
| Healey Construction Limited | Construction | 2017 |
| Healgrowmove Therapy Ltd | Extraterritorial | 2024 |
| Healing Bridge Counselling Limited | Health & social care | 2023 |
| Health on Hand (Mansfield) Limited | Health & social care | 2005 |
| Healthcare Complete Ltd | Health & social care | 2018 |
| Healthcare IPS Limited | Construction | 2021 |
| Healthpod Mansfield Ltd | Wholesale & retail | 2024 |
| Healthwest UK Ltd | Wholesale & retail | 2022 |
| Healthy Families Limited | Health & social care | 2022 |
| Heart@Home Ltd | Real estate | 2018 |
| Heat Pump Covers Limited | Professional & scientific | 2022 |
| Heat Tech Solutions Ltd | Administrative & support | 2015 |
| Heathercaci Ltd | Other services | 2019 |
| Heathy LEA Accommodation Ltd | Real estate | 2019 |
| Heathy LEA Limited | Real estate | 2019 |
| Heatwaves 2.0 Limited | Other services | 2017 |
| Heavens Recruitment Ltd | Administrative & support | 2014 |
| Heavy Duty Motorcycles Limited | Wholesale & retail | 2018 |
| Hectagon K9 Ltd | Administrative & support | 2023 |
| Hedgehog Electrical Ltd | Construction | 2024 |
| Hedleytech Ltd | Professional & scientific | 2023 |
| Hedmt Ltd | Wholesale & retail | 2024 |
| Hedy Barber Ltd | Other services | 2023 |
| Heera Food and Wine Ltd | Wholesale & retail | 2015 |
| Heera Property Services Ltd | Real estate | 2015 |
| Helens Curtains Ltd | Manufacturing | 2025 |
| Helix Beauty Ltd | Wholesale & retail | 2026 |
| Heman Retail Ltd | Wholesale & retail | 2026 |
| Henbri Accountants Limited | Professional & scientific | 2021 |
| Hendra Education Ltd | Education | 2025 |
| Heritage Heating Systems Limited | Construction | 2020 |
| Herkulijus Limited | Other services | 2022 |
| Hermitage International Limited | Professional & scientific | 2006 |
| Hermitage Property & Developments Limited | Professional & scientific | 2004 |
| Hetty's Trading Ltd | Wholesale & retail | 2014 |
| Hettys | Health & social care | 2009 |
| Hewitt Card (Holdings) Ltd | Financial services | 2022 |
| HEY Baby...Hey YOU Limited | Wholesale & retail | 2023 |
| Heyl Ltd | Manufacturing | 2013 |
| Heywhy Hub Limited | Hospitality | 2024 |
| Hfsa Ltd | Real estate | 2023 |
| HGV Rescue and Recovery Limited | Wholesale & retail | 2025 |
| HHH Locum Limited | Health & social care | 2021 |