| Hayes & Parr Limited | Real estate | 2023 |
| Hayes Consultancy Limited | Professional & scientific | 1994 |
| Hayes Enterprise Holdings Limited | Financial services | 2021 |
| Hayes Perrella Ltd | Wholesale & retail | 2022 |
| Haystore Limited | Real estate | 2019 |
| HAZ Insight Limited | Professional & scientific | 2018 |
| Haze Safety Solutions Ltd | Mining & quarrying | 2018 |
| Hazelblush Ltd | Wholesale & retail | 2023 |
| Hazell Group Ltd | Construction | 2026 |
| HB (Deansgate) Bolton Limited | Construction | 2012 |
| HB Clothing Ltd | Wholesale & retail | 2026 |
| HB Floors Ltd | Construction | 2018 |
| HB Furniture Outlet Ltd | Wholesale & retail | 2026 |
| HBS Health Limited | Health & social care | 2019 |
| HBS Housing Limited | Real estate | 2021 |
| HBS Property Lettings Ltd | Real estate | 2022 |
| HBT Trading Ltd | Wholesale & retail | 2021 |
| Hbyg Limited | Health & social care | 2015 |
| HC Early Years Ltd | Health & social care | 2024 |
| HC Leisure Ltd | Hospitality | 2026 |
| HCA Consulting Ltd | Other services | 2024 |
| Hcem UK Zhpt Ltd | Manufacturing | 2026 |
| HD Bolton Ltd | Wholesale & retail | 2020 |
| HD Fire Doors & Joinery Ltd | Construction | 2024 |
| HD Iceburg Ltd | Wholesale & retail | 2019 |
| HD Jointing Ltd | Construction | 2025 |
| HD P a Logistic Limited | Transport & logistics | 2016 |
| HD1 Catering Limited | Hospitality | 2024 |
| HDC Estates Ltd | Real estate | 2025 |
| HDC Global Solutions Limited | Wholesale & retail | 2025 |
| Hdcc Ltd | Health & social care | 2022 |
| HDL Haulage Limited | Transport & logistics | 2022 |
| HDS Scaffolding Ltd | Construction | 2020 |
| Hdss Holdings Ltd | Financial services | 2023 |
| HDY Immigration Ltd | Professional & scientific | 2021 |
| HE Clinical Ltd | Health & social care | 2026 |
| HE Says SHE Says Limited | Wholesale & retail | 2023 |
| Head Forward Consulting Limited | Professional & scientific | 2025 |
| Head North Ventures Limited | Professional & scientific | 2025 |
| Headkandi Academy Ltd | Education | 2025 |
| Headset Sales Limited | Administrative & support | 2000 |
| Headstrong Internet Services Ltd | Information & communication | 2008 |
| Headway Estates Limited | Professional & scientific | 2021 |
| Healing Massage Ltd | Other services | 2020 |
| Healing Nature Technologies Ltd | Manufacturing | 2023 |
| Healora Ltd | Health & social care | 2025 |
| Health & Beauty Deals Ltd | Wholesale & retail | 2023 |
| Health Instinct Limited | Wholesale & retail | 2018 |
| Health Medics Limited | Health & social care | 2016 |
| Health Solutions Consulting Limited | Professional & scientific | 2024 |
| Health Style Emporium Limited | Wholesale & retail | 2012 |
| Health Synectics Limited | Professional & scientific | 2008 |
| Health Works 54 Limited | Wholesale & retail | 2014 |
| Healthbook Limited | Wholesale & retail | 1979 |
| Healthcare Capital Group Limited | Health & social care | 2021 |
| HEALTHPHARM365 Limited | Health & social care | 2015 |
| Healthsector Assist Ltd | Professional & scientific | 2025 |
| Healthy Habits NW Ltd | Hospitality | 2023 |
| Heaney Bowes Limited | Administrative & support | 2016 |
| Hearing Clear Solutions Ltd | Wholesale & retail | 2021 |
| Heart of Gold Acdemy Ltd | Professional & scientific | 2025 |
| Heart of Gold Homecare Ltd | Public administration | 2021 |
| Heartfelt Care & Support Ltd | Health & social care | 2026 |
| Hearts and Minds Development Ltd | Health & social care | 2024 |
| Heat Sure Limited | Administrative & support | 2006 |
| Heat Tech Energy Limited | Construction | 2015 |
| HEAT4ALL Healthy Living Limited | Construction | 2017 |
| Heath Electrical NW Ltd | Construction | 2025 |
| Heath Farm (2) Limited | Extraterritorial | 1991 |
| Heath Farm Family Services Limited | Health & social care | 2005 |
| Heathbond Limited | Administrative & support | 2009 |
| Heathcote Housing Ltd | Real estate | 2024 |
| Heathfields (Middle Hulton) Management Company Limited | Real estate | 2002 |
| Heaths Contractors Limited | Construction | 2023 |
| HEATIR4LESS Ltd | Wholesale & retail | 2026 |
| Heatlink (Technical Solutions) Limited | Manufacturing | 2004 |
| Heaton Asset Management Ltd | Real estate | 2023 |
| Heaton Bathrooms Limited | Wholesale & retail | 2007 |
| Heaton Blinds Ltd | Wholesale & retail | 2023 |
| Heaton Bookkeeping Solutions Limited | Professional & scientific | 2013 |
| Heaton Building Projects Limited | Administrative & support | 2017 |
| Heaton Care Ltd | Administrative & support | 2024 |
| Heaton Convenience Limited | Wholesale & retail | 2017 |
| Heaton Developments Limited | Construction | 2006 |
| Heaton Fabrics Limited | Wholesale & retail | 2004 |
| Heaton Garden Maintenance Limited | Other services | 2017 |
| Heaton GAS Services Ltd | Construction | 2023 |
| Heaton Grange Limited | Households | 2006 |
| Heaton House Nursery Limited | Education | 2018 |
| Heaton Logistics Ltd | Transport & logistics | 2026 |
| Heaton M.O.T & Services Ltd | Wholesale & retail | 2006 |
| Heaton Medical Limited | Health & social care | 2008 |
| Heaton Parrots Limited | Wholesale & retail | 2022 |
| Heaton Pet Shop Limited | Wholesale & retail | 2022 |
| Heaton Podiatry Ltd | Public administration | 2023 |
| Heaton PRE School Bolton Ltd | Education | 2018 |
| Heaton Properties Limited | Real estate | 2017 |
| Heaton RAW Feeders Limited | Wholesale & retail | 2022 |
| Heaton Real Estates Limited | Real estate | 2025 |
| Heaton Taverns Limited | Hospitality | 2018 |