| Heatingnow Supplies Limited | Wholesale & retail | 2018 |
| Heatrek Limited | Manufacturing | 2025 |
| Heatrek Refractories Limited | Manufacturing | 2001 |
| Heaven Scent Services Ltd | Other services | 2016 |
| HEC Developments Limited | Financial services | 2021 |
| Hedworth International Limited | Other services | 2008 |
| Heeney Civils (EOT) Limited | Financial services | 2025 |
| HEF Construction Services Ltd | Construction | 2025 |
| Helans Classic Barber Ltd | Other services | 2025 |
| Helena Housing Limited | Real estate | 2004 |
| Helix Real Estate Ltd | Real estate | 2025 |
| Hell HOB PUB Co LLP | | 2026 |
| Helloh Limited | Construction | 2007 |
| Hells Recovery Ltd | Wholesale & retail | 2013 |
| Helsby Holdings Limited | Administrative & support | 2009 |
| Henley Avenue Healthcare Limited | Wholesale & retail | 2023 |
| Hennis Tree Care Ltd | Administrative & support | 2023 |
| Henry's Auto Trading Ltd | Wholesale & retail | 2025 |
| Henshhomes Ltd | Real estate | 2023 |
| Heptron Africa Limited | Professional & scientific | 2021 |
| Heptron International Limited | Professional & scientific | 2015 |
| Heptron Manufacturing UK Limited | Manufacturing | 2015 |
| Heptron Power Transmission Limited | Manufacturing | 2012 |
| Heran Property Management Limited | Real estate | 2018 |
| Hero Fireproof Systems (UK) Limited | Wholesale & retail | 2022 |
| Herz Limited | Wholesale & retail | 2017 |
| HESENI12 Ltd | Hospitality | 2019 |
| Hesketh International Consulting Limited | Professional & scientific | 2026 |
| Heyes Plumbing & Heating Ltd | Construction | 2021 |
| Hi-Tech Coatings (N.W.) Limited | Financial services | 2011 |
| Hi-Tech Steel Services Limited | Manufacturing | 2012 |
| Hidden Art Films Ltd | Information & communication | 2014 |
| Hiflex Europe Limited | Administrative & support | 2004 |
| Higgins Services Limited | Wholesale & retail | 2020 |
| High-Tech Interiors Limited | Construction | 2025 |
| Highbury Bloom Ltd | Real estate | 2017 |
| Higher END Construction Limited | Construction | 2014 |
| Higher END Group Ltd | Financial services | 2021 |
| Higher END Investments Ltd | Real estate | 2020 |
| Higher END North Limited | Construction | 2021 |
| Higher Plane Consulting Limited | Professional & scientific | 2020 |
| Highgrade Fencing Limited | Wholesale & retail | 2022 |
| Highpoint Care Holdings LLP | | 2013 |
| Highpoint Care Limited | Health & social care | 2013 |
| Hightown PUB Company Ltd | Hospitality | 2020 |
| Highways Advice Ltd | Professional & scientific | 2014 |
| Hill Road Ltd | Hospitality | 2021 |
| Hillstone Property Limited | Real estate | 2026 |
| Hivis.Co.Uk Holdings Limited | Information & communication | 2016 |
| Hivis.Co.Uk Limited | Other services | 2001 |
| HJ Arnold Accounting Services Ltd | Professional & scientific | 2026 |
| HJL Construction Ltd | Construction | 2024 |
| HJL Motors Ltd | Wholesale & retail | 2018 |
| HJT Properties Ltd | Real estate | 2025 |
| HLG Group Ltd | Real estate | 2023 |
| HM Vision Ltd | Wholesale & retail | 2025 |
| Hmiraftab Limited | Health & social care | 2017 |
| Hoceo Group Ltd | Manufacturing | 2026 |
| Hogan's Holidays Ltd | Administrative & support | 2020 |
| Holdings JHS Ltd | Real estate | 2025 |
| Holistic Fitness Active Wear Ltd | Wholesale & retail | 2025 |
| Holland Property Group Ltd | Real estate | 2025 |
| Holly Mount Property Management Limited | Households | 1994 |
| Holmpatrick Limited | Professional & scientific | 2011 |
| Home Improvements North West Ltd | Construction | 2006 |
| Home Life NW Ltd | Health & social care | 2026 |
| Home Renovate Construction Ltd | Construction | 2023 |
| Home Space Lets Ltd | Real estate | 2017 |
| Homebird Care Ltd | Health & social care | 2010 |
| Homecoat Ltd | Construction | 2026 |
| Homeheat GAS & OIL Ltd | Construction | 2017 |
| Homelets.Co. UK Limited | Other services | 2009 |
| Homelets.Com Limited | Extraterritorial | 2009 |
| Homemove Sales & Lettings Limited | Real estate | 2003 |
| Homescape Builders Ltd | Construction | 2022 |
| Honey Joy Limited | Arts & recreation | 2023 |
| Hongze Ltd | Hospitality | 2025 |
| Hope Acrobatic Gymnastics Club Ltd | Arts & recreation | 2021 |
| Hope Investment Properties Ltd | Real estate | 2019 |
| Hope Plumbing & Building Ltd | Construction | 2015 |
| Horizon Shutters Limited | Manufacturing | 2018 |
| Horizon Synergy Group Limited | Professional & scientific | 2025 |
| Horseshoe Gym Ltd | Arts & recreation | 2026 |
| Horus Protection Ltd | Administrative & support | 2023 |
| Host Engineering Ltd | Construction | 2016 |
| Hotep Seminars Ltd | Health & social care | 2017 |
| House Garden Store Ltd | Wholesale & retail | 2024 |
| Housing Maintenance Solutions Limited | Construction | 2010 |
| Howard & Co Property Developments Ltd | Real estate | 2023 |
| Howardsdale Limited | Real estate | 2007 |
| Hska Limited | Arts & recreation | 2018 |
| Hsroofingsolutionslimited Limited | Professional & scientific | 2026 |
| HTP Transport Ltd | Transport & logistics | 2018 |
| Htss Holdings Limited | Professional & scientific | 2024 |
| Huddersfield Pharma Limited | Wholesale & retail | 2023 |
| Hughes Combat Ltd | Arts & recreation | 2025 |
| Hughes Spraying Solutions Ltd | Construction | 2022 |
| Huius Limited | Professional & scientific | 2021 |
| Hummingbird Construction Consultancy Limited | Construction | 2018 |
| Hungry Beanz Limited | Wholesale & retail | 2019 |