| Hauck Developments Limited | Extraterritorial | 1988 |
| Haute Air UK Ltd | Wholesale & retail | 2025 |
| Havana 35 Limited | Hospitality | 2022 |
| Havana AVL Ltd | Hospitality | 2025 |
| Havana Burger & Shakes Limited | Hospitality | 2018 |
| Havana Rochdale Limited | Hospitality | 2021 |
| Haven Care Supported Living Limited | Administrative & support | 2024 |
| Haven Daycare Limited | Health & social care | 2022 |
| Haven Properties Saddleworth Ltd | Real estate | 2021 |
| Haven Waters Limited | Administrative & support | 2025 |
| Havenhandz Limited | Construction | 2025 |
| Havenwell Asset Group Ltd | Real estate | 2025 |
| Havoc Beauty Limited | Manufacturing | 2025 |
| Hawk Property Limited | Real estate | 2016 |
| Hawkes Marketing Ltd | Information & communication | 2025 |
| Hawkes Property Solutions Ltd | Real estate | 2025 |
| Hawks Plus Ltd | Wholesale & retail | 2023 |
| Hawkwell House Hotel Limited | Hospitality | 1997 |
| Hawwa-Nur Ltd | Transport & logistics | 2022 |
| Hayat Legal Consultants Limited | Professional & scientific | 2025 |
| Haybyrne Properties Ltd | Real estate | 2023 |
| Haydock Apartments Limited | Hospitality | 2019 |
| Hayemedia Limited | Other services | 2023 |
| Hayley Brown Beauty & Aesthetics Ltd | Other services | 2025 |
| Hayley Knagg Ltd | Health & social care | 2023 |
| Hayneswood Engineering (UK) Limited | Manufacturing | 2003 |
| Hazar Ltd | Health & social care | 2020 |
| Hazartech Safety Consultancy Limited | Professional & scientific | 2026 |
| Hazel Builders Ltd | Construction | 2026 |
| Hazelhurst Developments Ltd | Real estate | 2017 |
| Hazera Fashion House Limited | Wholesale & retail | 2024 |
| HB Bidco Limited | Professional & scientific | 2021 |
| HB Enterprises MCR Ltd | Wholesale & retail | 2025 |
| HB Plant Hire Ltd | Administrative & support | 2012 |
| HB Topco Limited | Professional & scientific | 2021 |
| HBF Studios Ltd | Information & communication | 2025 |
| HBF Trading Group Ltd | Wholesale & retail | 2024 |
| HBR World Ltd | Real estate | 2004 |
| Hbrr Housing Ltd | Real estate | 2025 |
| HC Nexus Limited | Wholesale & retail | 2025 |
| Hccg Group Ltd | Wholesale & retail | 2025 |
| HD Heating & GAS Services Ltd | Manufacturing | 2016 |
| HD Properties (Northwest) Limited | Real estate | 2019 |
| Hdhd Ltd | Construction | 2025 |
| HDR3 Ltd | Real estate | 2026 |
| HE Jones Holding Limited | Financial services | 2025 |
| HEA Solutions Limited | Wholesale & retail | 2025 |
| Headstones Oldham Ltd | Other services | 2019 |
| Headway UK (North) Ltd | Administrative & support | 2019 |
| Heal Grow Thrive C.I.C. | Health & social care | 2025 |
| Healbridge Community Wellbeing CIC | Information & communication | 2026 |
| Heallive Limited | Wholesale & retail | 2024 |
| Health and Fitness Group Ltd | Wholesale & retail | 2019 |
| Healthfitnesslifestyle Enterprises Ltd | Health & social care | 2024 |
| Healthiher Wellness Ltd | Information & communication | 2024 |
| Healthvantage Consulting Ltd | Health & social care | 2026 |
| Healthy Ears Audiology Ltd | Health & social care | 2025 |
| Healthy Hive Ltd | Health & social care | 2024 |
| Healthy Step Limited | Manufacturing | 2014 |
| Hear Pro UK Ltd | Professional & scientific | 2024 |
| Heart and Hands Studio Ltd | Arts & recreation | 2025 |
| Heat Art Limited | Construction | 2010 |
| Heat First Ltd | Construction | 2019 |
| Heat Pumps Manchester Ltd | Construction | 2023 |
| Heatbox MCR Ltd | Hospitality | 2025 |
| Heathbank Support Services | Health & social care | 1978 |
| Heathcot Pre-School Ltd | Education | 2004 |
| Heatherglenns Complex Care Services Ltd | Health & social care | 2024 |
| Heating Spares Limited | Wholesale & retail | 2006 |
| Heatingtech Solutions Ltd | Construction | 2022 |
| Heaton Health Ltd | Other services | 2024 |
| Heaton Insurance Consultants Limited | Financial services | 2013 |
| Heaton Park Garage Limited | Wholesale & retail | 1996 |
| Heavenly Blinds Ltd | Wholesale & retail | 2025 |
| Heavens Scent Ltd | Manufacturing | 2021 |
| Heavy Metal SC Limited | Arts & recreation | 2019 |
| Hebden Properties Limited | Real estate | 2011 |
| HEC Holdings NW Ltd | Administrative & support | 2025 |
| Hedge Hunters ARB Limited | Administrative & support | 2018 |
| Hedgerow Design Limited | Manufacturing | 1989 |
| Heights Access Limited | Construction | 2006 |
| Heights Roofing (Saddleworth) Ltd | Construction | 2010 |
| Heights Roofing Ltd | Construction | 2015 |
| Heist Street Enterprises Ltd | Other services | 2021 |
| Helenaimade Ltd | Education | 2026 |
| Helier Private Group Ltd | Administrative & support | 2026 |
| Helijay Property Ltd | Wholesale & retail | 2025 |
| Hello ITS ME Ltd | Transport & logistics | 2024 |
| Hellochina Ltd | Professional & scientific | 2024 |
| Helm Mill Management Limited | Households | 2013 |
| Helphub Services Ltd | Construction | 2024 |
| Helping Hands Alliance Limited | Administrative & support | 2026 |
| Helping Hands Hygiene Ltd | Wholesale & retail | 2019 |
| Helping Hands Youth UK C.I.C. | Wholesale & retail | 2025 |
| Helping Little Minds Ltd | Health & social care | 2026 |
| Helpix Ltd | Health & social care | 2024 |
| Helpkidzlearn Limited | Professional & scientific | 2000 |
| Helween Properties Ltd | Real estate | 2025 |
| HEM Digital Limited | Wholesale & retail | 2018 |
| Hemispheres Creative&Advertising Agency Ltd. | Professional & scientific | 2012 |